Answers
Answer:
The slope is same for both points.
Step-by-step explanation:
1st set of points: (1, 4) and (7, 2)
m = 2-4/7-1
m = -2/6
m = -1/3
2nd set of points: (7, 2) and (10, 1)
m = 1-2/10-7
m = -1/3
The slope is same for both points.
Related Questions
A random sample of n measurements was selected from a population with unknown mean and standard deviation o = 20 for each of the situations in parts a through d. Calculate a 95% confidence interval for ju for each of these situations. a. n=70, X = 27 b. n = 150, x= 115 c. n= 80. x = 18 d. n = 80, x=5.33 e. Is the assumption that the underlying population of measurements is normally distributed necessary to ensure the validity of the confidence intervals in parts a through d? Explain. (Round to two decimal places as needed.) (Round to two decimal places as needed.) (Round to two decimal places as needed.) d. (ID) (Round to two decimal places as needed.) e. Choose the correct answer below. O A. No, since the sample sizes are large in 2 30), the condition guarantees that the sampling distribution of x is approximately normal. O B . No, since the confidence level is at least 90%, the underlying distribution need not be normal. OC. No, since the sample was randomly selected from the target population, the sampling distribution of x is guaranteed to be approximately normal. OD. Yes, the underlying distribution must be normal for the validity of these confidence intervals O E. No, since the sample sizes are large in 230) and randomly selected from the target population, the condition guarantees that the sampling distribution of x is approximately normal.
Answers
As per the 95% confidence interval for the population mean is (31.042, 42.958).
What is meant by confidence interval?
In math, A normal distribution with a mean, μ and standard deviation, σ is used to estimate the confidence interval for the unknown population mean.
Here we have given that the random sample of n measurements was selected from a population with unknown mean and standard deviation o = 20 for each of the situations.
And we need to find the 95% confidence interval for ju for each of these situations.
Here we are given the following data:
• Sample size, n=70
• Sample mean, ¯x=37
• Population standard deviation, σ=20
Then the 95% confidence interval for the population mean is defined as:
=> x±z0.01/2×σ√n
Here by applying Excel function for the confidence coefficient:
=> NORM.INV(0.01/2,0,1)
Then we get,
=> 37±2.58×20√75(31.042, 42.958)
To know more about Confidence interval here.
https://brainly.com/question/24131141
#SPJ4
you are dealt three cards without replacement from a standard 52-card deck. a) Find the probability of being dealt no hearts. b) Next, use complements to find the probability of being dealt at least one heart.
Answers
The the probability of being dealt no hearts is 0.75 and probability of being dealt at least one heart is 0.25 .
Total number of cards = 52
A : the probability of being dealt no hearts
B: the probability of being dealt with hearts
P( A ) = 1 - P( B)
= 1 - 13/52
= 1 -0.25
=0.75
C : probability of being dealt at least one heart
P(C) = 13C1 / 52C1
= 13 / 52
=0.25
Probability is a way to tell or calculate the possibility of an event to occur. Using it, we can make predictions about the likelihood of an event happening, or how likely it is , it helps to make predictions more clear .
The probability can be between 0 and 1 here , P being 0 means a failure and P being 1 means a success.
To learn more about probability
brainly.com/question/30034780
#SPJ4
Divide 25 by 5,
then add 7.
Answers
Answer:
The answer would be 12.
The equation would be (25/5)+7
Step-by-step explanation:
To solve this problem, first divide 25 by 5.
25/5=5
Now, add 7 to 5 for your answer.
The answer would be 12.
The equation would be (25/5)+7
Hope this helps! Have a great day! :D
25÷5=5
5+7=12
12 is your answer
Exercises 57 and 58 refer to the following setting. In Exercises 14 and 18 of Section we examined the probability distribution of the random variable the amount a life insurance company earns on a 5 -year term life policy. Calculations reveal that and Life insurance If four 21 -year-old men are insured, the insurer's average income is
where is the income from insuring one man. Assuming that the amount of income earned on individual policies is independent, find the mean and standard deviation of . (If you compare with the results of Exercise 57 , you should see that averaging over more insured individuals reduces risk.)
Answers
the mean and standard deviation of the random variable X, which represents the income from insuring four 21-year-old men, is 2000 and 27.22, respective
Mean: $2,000
Standard Deviation: $741.42
The mean of the random variable X is calculated by taking the sum of the products of the probability of each outcome and the corresponding value of X. The probabilities of each outcome, in this case, are 0, 0.38, 0.59, and 0.03, respectively. The corresponding values of X are $1000, 2000, 3000, and 4000$. Thus, the mean of X is calculated as:
Mean =[tex]$\sum_{i=1}^{N} P(X = x_i)*x_i[/tex]
= 0*1000 + 0.38*2000 + 0.59*3000 + 0.03*4000
= 2000
The standard deviation of the random variable X is calculated by taking the square root of the sum of the products of the probability of each outcome and the square of the difference between the corresponding value of X and the mean. The probabilities of each outcome, in this case, are 0, 0.38, 0.59, and 0.03, respectively. The corresponding values of X are $1000, 2000, 3000, and 4000$. The mean of X is 2000. Thus, the standard deviation of X is calculated as:
Standard Deviation = [tex]$\sqrt{\sum_{i=1}^{N} P(X = x_i)(x_i - \mu)^2}[/tex]
= [tex]\sqrt{(0(1000-2000)^2[/tex] + [tex]0.38*(2000-2000)^2[/tex] + [tex]0.59*(3000-2000)^2 + 0.03*(4000-2000)^2)}[/tex]
= [tex]\sqrt{741.42} = 27.22$[/tex]
Therefore, the mean and standard deviation of the random variable X, which represents the income from insuring four 21-year-old men, is 2000 and 27.22, respective
Learn more about standard deviation here
https://brainly.com/question/13905583
#SPJ4
Find the dimensions of the rectangle of largest area that has its base on the x-axis and its other two vertices above the x-axis and lying on the parabola. (Round your answers to the nearest hundredth.)
y = 5 - x2
(1) units (width)
(2) units (height)
Answers
The length of the rectangle is 1.054 units and the width of the rectangle is 4.72 units.
Length times width equals the area of a rectangle. Let's assume that x represents length and y represents width. To determine the dimensions of the rectangle, we must apply y values to the area formula, differentiate with respect to x, and then set differentiate to zero.
Parabola: [tex]y=5-x^{2}[/tex]
The equation of parabola indicates that it opens down and the axis of symmetry is x=0. So we can take the vertices of the rectangle on the x-axis as [tex]A=(-x,0)[/tex] and [tex]D=(x,0)[/tex]). The other two vertices above the x-axis on the parabola will be [tex]B=(-x, 5-x^{2} )[/tex] and [tex]C=(x,5-x^{2} )[/tex]
Dimensions of the rectangle will be,
[tex]x-(-x)=2x[/tex] and [tex](5-x^{2} )[/tex]
Area of the rectangle (A) = [tex]2x(5-x^{2} )[/tex]
Area function when differentiated (A′) = [tex]2x(-2x)+(5-x^{2} )(2)[/tex]
A′= [tex]-4x^{2} + 10 -2x^{2}[/tex]
A′= [tex]-6x^{2} +10[/tex]
Critical points for maxima and minima ⟹ [tex]-6x^{2} +10=0[/tex]
⟹ [tex]10=6x^{2}[/tex]
⟹ [tex]x^{2} = \frac{10}{6}[/tex]
⟹ [tex]x= \sqrt \frac{10}{6}[/tex]
⟹ [tex]x=[/tex] ±[tex]0.527[/tex]
Maximum area of 2X2 rectangle(square)
A= [tex]2*0.527(5- 0.527^{2} )[/tex] = [tex]4.97[/tex] [tex]units^{2}[/tex]
Length = 2x = 1.054 units
Width = [tex](5-x^{2} )[/tex] = 4.72 units
To learn more about rectangles visit: brainly.com/question/29123947
#SPJ4
Determine which answers in in the solution that will make the equation true
Answers
Answer:
9
Step-by-step explanation:
3p + 6 = 5p – 12
6 + 12 = 5p – 3p
18 = 2p
p = 18/2
p = 9
rate as brainliest
thank you
Answer:
The answer would be 9.
Step-by-step explanation:
If you plug in 18 for both of them, the answer would be:
60=78
If you plug in 9 for both of them, the answer would be:
33=33
If you plug in 0 for both of them, the answer would be:
6=-12
If you plug in -9 for both of them, the answer would be:
-21=-57
So, 9 would be the best choice.
Hope this helps! :D
Luke invests $800 into an account with a 2.9% interest rate that is compounded semiannually.
How much money will he have in this account if he keeps it for 5 years?
Round your answer to the nearest dollar.
Answers
The money he will have in this account if he keeps it for 5 years is $358.
What is meant by compound interest?Compound interest is the term used to describe interest on savings that is calculated using both the initial principal and interest that has accrued over time. You can earn interest on interest, which is known as compound interest.
WE have given $100 and it earns 5% interest annually, you will have $105 at the end of the first year. You will have $110.25 by the conclusion of the second year.
Given,
P = $800
Time t=5 years
Interest rate= 2.9%
Hence, the amount will have in his account is:
=[tex]P(1 + 10 / 2000)^{2t}[/tex]
Here, the interest is compounded semiannually.
[tex]800 (1 + 2.9 / 200)^{10}[/tex]
=$358
Therefore, if the interest rate is compounded semiannually then the money he will have in this account if he keeps it for 5 years is $358.
To know more about compound interest, visit:
brainly.com/question/14295570
#SPJ1
Find the length of an arc on a circle whose radius is 10 cm and whose central angle subtends a central angle of 20º
Answers
Reason: this is because the equation for finding the length of arc it is πxd (pie times diameter) and if you are given an angle it is the - size of the angle/360 times π times diameter -
So,
Because you are given the radius you have to do 10x2 =20cm which is the diameter.
Now, you have to do,
20/360 x π x 20
= 3.4906585…
And you generally round up to 2dp
So it would be
3.49cm
Find the 3rd order Taylor polynomial of the function f(x)= √x centered at 4 and then use this polynomial to approximate √14.03. Show at least 8 decimal places in your answer.
Answers
The 3rd-order Taylor polynomial of the function f(x)= √x centered at 4 is expressed as f(x) ≈ P3(x) = a₀ + a₁(x - 4) + a₂(x - 4)² + a₃(x - 4)³.
Here, a₀, a₁, a₂, and a₃ are the coefficients that need to be calculated. To find these coefficients, we must use the Taylor series formula and the derivatives of f(x) evaluated at 4.
The Taylor series formula is Pn(x) = f(a) + f'(a)(x-a) + (f''(a)/2!) (x-a)² + (f'''(a)/3!) (x-a)³ + ... +[tex](f^(n)(a)/n!) (x-a)^n[/tex].
The derivatives of f(x) evaluated at 4 are f'(4) = 1/2, f''(4) = -1/8, f'''(4) = -1/16.
Using these values, the coefficients of the 3rd-order Taylor polynomial can be calculated as a₀ = 2, a₁ = 1/2, a₂ = -1/8, and a₃ = -1/16.
Therefore, the 3rd-order Taylor polynomial of the function f(x)= √x centered at 4 is P3(x) = 2 + (1/2)(x - 4) - (1/8)(x - 4)² - (1/16)(x - 4)³.
Using this polynomial to approximate √14.03, we have P3(14.03) = 2 + (1/2)(14.03 - 4) - (1/8)(14.03 - 4)² - (1/16)(14.03 - 4)³ ≈ 3.76401097.
Therefore, the approximation of √14.03 using the 3rd-order Taylor polynomial is 3.76401097 to 8 decimal places.
Learn more about the Taylor polynomial:
brainly.com/question/2533683
#SPJ4
Select all irrational numbers.
√3/16
√4/16
√9/16
√3/4
√9/4
Answers
From the given numbers root (3/4) and root (9/4) irrational numbers.
What are irrational numbers?
Irrational numbers are the set of real numbers that cannot be expressed in the form of a fraction, p/q where p and q are integers. The denominator q is not equal to zero (q ≠ 0). Also, the decimal expansion of an irrational number is neither terminating nor repeating.
Here,
root(3/16) is a rational number
root(9/16) is a rational number.
Therefore, from the given numbers root(3/4) and root(9/4) are the irrational numbers.
To learn more about the irrational numbers visit:
brainly.com/question/4031928.
#SPJ4
Sunset Lake is stocked with 2800 rainbow trout and after 1 year the population has grown to 7000. Assuming logistic growth with a carrying capacity of 28000, find the growth constant kk, and determine when the population will increase to 14600.
Answers
The growth constant is 1.0986 and the trout population will increase to 14600 after 2.1 years. The result is obtained by using the logistic equation.
How to find the increase of population?The increase of population can be found by using the logistic equation. It is
[tex]P(t) = \frac{K}{1 + Ae^{-kt} }[/tex]
Where
P(t) = population at time t (in years)K = carrying capacityA = (K- P₀)/P₀k = growth constant of proportionalityt = time (in years)Sunset Lake is stocked with the rainbow trout. We have
P₀ = 2800P(1) = 7000K = 28000Find the growth constant k and time t when P(t) = 14600!
A = (K - P₀)/P₀
A = (28000 - 2800)/2800
A = 25200/2800
A = 9
After 1 year, we have 7000 rainbow trout. The growth constant is
[tex]7000 = \frac{28000}{1 + 9e^{-k(1)} }[/tex]
[tex]1 + 9e^{-k} = 4[/tex]
[tex]9e^{-k} = 3[/tex]
[tex]e^{-k} = \frac{1}{3}[/tex]
k = - ln (1/3)
k = 1.0986
Use k value to find the time when the population will increase to 14600!
[tex]14600 = \frac{28000}{1 + 9e^{-1.0986t} }[/tex]
[tex]1.9178 = 1 + 9e^{-1.0986t}[/tex]
[tex]0.9178 = 9e^{-1.0986t}[/tex]
[tex]\frac{0.9178 }{9} = e^{-1.0986t}[/tex]
[tex]t = \frac{ln \: 0.10198}{-1.0986}[/tex]
t = 2.078
t ≈ 2.1 years
It is in another 1.1 years after t = 1.
Hence, the growth constant k is 1.0986 the population will increase to 14600 when t is 2.1 years.
Learn more about increase of population here:
brainly.com/question/13060148
#SPJ4
in the graph, y represents the money collected from the sale of adult tickets, and x represents the number of adult tickets sold. which equation describes the proportional relationship between the amount of money collected and the number of adult tickets sold?
Answers
On solving the question we got to know that - Answer: For every ticket sold, 52$ is made, 1 : 52
What is a graph?A diagram or graphical representation that organizes the depiction of data or values is known as a graph. The relationships between two or more items are frequently represented by the points on a graph.
What is the structure of a graph?A graph is a type of non-linear data structure that consists of nodes and links. While the vertices are often sometimes referred to as nodes, in a graph the edges are the lines or arcs that connect any two nodes. The vertices (V) and edges (E) that make up a graph are what constitute it most rigorously ( E ). The prefix "G" appears in the graph (E, V).
y = mx - rise/run = 208/4, m = 52
The proportion is that for every ticket sold, 52 $ is made, 1 : 52
To know more about graphs visit:
https://brainly.com/question/29467965
#SPJ4
If a line is tangent to a circle, then it is perpendicular to the radius drawn to the point of tangency. TRUE or FALSE​
Answers
Answer:
True
Step-by-step explanation:
This is true by definition.
when the base and leg side of right triangle are the same what is the angel measure fo the hypotenuse?
Answers
the measure of the hypotenuse angle must be 180 - (45 + 45) = 90 degrees .The angle measure of the hypotenuse in this case would be 45 degrees.
In right triangles, the angles of the triangle always add up to 180 degrees. Since the base and leg side of the triangle have the same measure, the two angles opposite of them must both be 45 degrees. Thus, the measure of the hypotenuse angle must be 180 - (45 + 45) = 90 degrees.In right triangles, the sum of the angles is always 180 degrees. The base and leg of a right triangle have the same measure, thus the angles opposite of them must both be equal. This means that the two angles add up to 90 degrees. Subtracting 90 from 180 degrees gives us the angle measure of the hypotenuse, which is 90 degrees.
180° - (45° + 45°) = 90°
Therefore, the angle measure of the hypotenuse in this case is 90°
Learn more about angle here
https://brainly.com/question/28451077
#SPJ4
Find the measure of
Answers
Answer:
<MON = 102°
Step-by-step explanation:
Alternative Interior Angles so both of those angle equal to each other.
(12x + 30) = (9x + 48)
Get x to one side by subtracting.
12x - 9x + 30 = 48
3x + 30 = 48
Subtract 30 to both side to get x by itself.
3x = 18
Divide 3 to both side to solve for x.
x = 6
Plug x = 6 into <MON = (9x + 48)
9*6 + 48 = 54 + 48 = 102°
Select the values that make the inequality h < 2 true.
(Numbers written in order from least to greatest going across.)
Answers
The inequality is: h less than equal to 2 That is the Numbers written in order from least to greatest going across
To find:
The values that make the given inequality true.
We have,
h less than equal to 2
It means the value of h must be less than or equal to 2.
In the given options, the list of numbers which are less than or equal to 2 is
-6, -3, -1, 1, 1.9, 1.99, 1.999, 2
The list of numbers which are greater than 2 is
2.001, 2.01, 2.1, 3, 5, 7, 10
Therefore, the first 8 options are correct and the required values are -6, -3, -1, 1, 1.9, 1.99, 1.999, 2.
learn more about of inequality here
https://brainly.com/question/23884308
#SPJ4
The ______ of an object is a measure of the average kinetic energy of the particles in the object.
a.heat b.temperature c.conductivity d.charge
Answers
Answer:
b. temperature
Step-by-step explanation:
It is the measure of average kinetic energy of motion or K.E of a single particle in a system.
A regular hexagon has a perimeter of 120 m. Find its area. Express your answer in the simplest radical form.
A) 1800√3m^2
B) 5√3m^2
C) 600√3m^2
D) 3600√3m^2
Answers
The area of the regular hexagon value calculated using given perimeter of the regular hexagon is equal to option C. 600√3 square meters.
As given in the question,
Perimeter of the regular hexagon is equal to 'P' = 120m
Relation between the area of the regular hexagon 'A' and the perimeter of the regular hexagon 'P is given by :
A = √3 × ( P²/24 )
= √3 × [(120)²/ 24]
= √3 × ( 14400 / 24 )
= √ 3 × 600
= 600√3 square meters
Therefore, the area of the regular hexagon using the perimeter of the regular hexagon is equal to Option C. 600√3 square meters.
learn more about area here
brainly.com/question/27683633
#SPJ4
A rectangular prism made is 3 units high, 2 units wide, and 5 units long. What is its surface area in square units? Explain or show your reasoning.
Answers
Answer:
62 square units
Step-by-step explanation:
You want the surface area of a rectangular prism 3 units high, 2 units wide, and 5 units long.
AreaThe surface area of a rectangular prism is given by the formula ...
SA = 2(LW +H(L +W))
ApplicationUsing the given dimensions, L=5, W=2, H=3, the area is ...
SA = 2(5·2 +3(5 +2)) = 2(10 +3(7)) = 2(31)
SA = 62 . . . square units
The surface area of the prism is 62 square units.
Which of the following are solutions to the equation below?
Check all that apply.
x² + 6x + 9 = 20
A. x= 2√5-3
B. x= √3+ 20
C. x= -2√5 +3
D. x = -√3+20
☐ Ex= 2√5 +3
OF x=-2√5-3
Answers
The solution to the equation x²+6x+9=20 is x = -2√5 - 3 or x = 2√5 -3 option option (B) and option (D) are correct.
What is a quadratic equation?
Any equation of the form where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.
As we know, the formula for the roots of the quadratic equation is given by:
x = [-b± (√b²-4ac )] / 2a
The quadratic equation:
x²+6x+9=20
x²+6x -11 = 0
a = 1, b = 6, c = -11
x₁,₂ = [-6±√6² - 4.1.(-11)]/2(1)
x = -3 + 2√5 , x = -3 - 2√5
Thus, the solution to the equation x²+6x+9=20 is x = -2√5 - 3 or x = 2√5 -3 option option (B) and option (D) are correct.
To know more about equation check the below link:
https://brainly.com/question/2972832
#SPJ1
1
You are told that 56% of the pupils in a class are girls.
What is the smallest number of pupils the class could contain?
Answers
The smallest number of pupils the class could contain is 25.
How to illustrate the percentage?A percentage is a value or ratio that may be stated as a fraction of 100. If we need to calculate a percentage of a number, we should divide it's entirety and then multiply it by 100
Since we are told that 56% of the pupils in a class are girls, the smallest number of pupils the class could contain is 25. This will be:
= 14 / 25 × 100
= 56%
This is correct as indicated above.
Learn more about percentages on:
brainly.com/question/24877689
#SPJ1
What is the simplified form of each expression?
Answers
The simplified form of an expression is the expression written in its simplest form, usually achieved by combining like terms and removing unnecessary parentheses.
a satellite traveling in a circular orbit 1,000 miles above the earth passes directly over a tracking station at noon. assume that the satellite takes 2 hours to make an orbit and that the radius of the earth is 4,000 miles. find the distance between the satellite and tracking station at 12:03 p.m. draw a picture (using the idea of orbits like above), then solve.
Answers
The distance between the satellite and tracking station at 12:03 p.m is 1271.55 miles.
Given that :
TS = 1000 miles
Orbital time = 2 hours
Let T be tracking station.
S be satellite position.
R be a satellite position at 12:03 p.m
Time = 12:03 - 12:00 = 3 min
SR = Satellite speed × time
Orbital distance = 2πR
= 2π(4000 + 1000)
= 10000 π miles
Orbital speed = [tex]\frac{satellite distance}{satellite time}[/tex]
= [tex]\frac{10,000\pi }{2}[/tex]
= 5000 π miles/hour
= [tex]\frac{5000 \pi }{60}[/tex] miles/min
Distance SR = Orbital speed × time
= [tex]\frac{5000 \pi }{60}[/tex] × 3
= 250 π miles
Using pythagoras theorem in triangle TSR
[tex]TR^{2}[/tex] = [tex]TS^{2} + SR^{2}[/tex]
= [tex]\sqrt{TS^{2} + SR^{2} }[/tex]
= [tex]\sqrt{1000^{2} + 250 \pi ^{2} }[/tex]
TR = 1271.55 miles
Therefore, the distance between the satellite and tracking station at 12:03 p.m is 1271.55 miles.
To learn more about distance check the given link brainly.com/question/17738893
#SPJ4
34) A company advertises on a website. A worker tracked the number of visits to the website and the number of clicks on the advertisement. The table shows the data for several days. A linear function can be used to model the data.
Based on the table, what is the best prediction of the number of clicks on the advertisement if 1,500 people visit the website?
A) 77 B) 137 C) 83 D) 105
Answers
The best prediction of the number of clicks on the advertisement if 1,500 people visit the website is; C: 83
How to interpret Function Tables?
We want to find the best prediction of the number of clicks on the advertisement if 1,500 people visit the website.
Now, we see the coordinates from the table;
(1045, 60)
(1106, 63)
(1500, y)
where y is the best prediction of the number of clicks on the advertisement if 1,500 people visit the website.
By interpolation, we can say that;
(y - 63)/(1500 - 1106) = (63 - 60)/(1106 - 1045)
(y - 63)/394 = 3/39
(y - 63)/394 = 1/13
Cross multiply to get;
y - 63 = 394/13
y = 93
Looking at the options, the closest option is option C.
Read more about Function tables at; https://brainly.com/question/9404442
#SPJ1
Leslie gathered this data revealing the distance traveled and the cost of ticket when taking a commuter train between six different pairs of stations
Answers
The cost for two stations that are 10 miles apart will be $8.21.
What is cost?
Cost denotes the amount of money that a company spends on the creation or production of goods or services. It does not include the markup for profit. From a seller's point of view, cost is the amount of money that is spent to produce a good or product.
Given equation is;
y = 0.354x+4.669
Where x represents the number of miles traveled.
For measuring the cost for two stations that are 10 miles apart;
x=10
Putting in given equation
y=0.354(10)+4.669
y=3.54+4.669
y=8.209
Rounding off to nearest hundredth;
y=$8.21
The cost for two stations that are 10 miles apart will be $8.21
Learn more about linear equations at: brainly.com/question/10525991
#SPJ1
In a class of 25 students, there were 13 math majors, 10 were computer science majors, and 6 were dual majors in both.
How many were in math only?
How many were not majoring in computer science?
How many were not math or computer science?
Answers
a. The number of students who were in math only is 7 students.
b. The number of students who were not majoring in computer science is 15.
c. The number of students who were not math or computer science is 8
How to calculate the number of students?From the information given, in a class of 25 students, there were 13 math majors, 10 were computer science majors, and 6 were dual majors in both.
It should be noted that the number of math majors only will be:
= 13 - 6
= 7
The number of students not majoring in computer science will be:
= 25 - 10
= 15
Those not math or computer science majors will be:
= 25 - 6 - 7 - (10 - 6)
= 8
Learn more about sets on:
https://brainly.com/question/23721159
#SPJ1
4. Find the length of A B.
Answers
Using the Pythagorean triplet, the value of AB is 2.
In the given question we have to find the length of AB.
From the given diagram we can see that;
ED = 2, DC = 8 and BC = 6.
To solve this question we use the Pythagorean Triplet.
Pythagorean triples consist of the three positive numbers a, b, and c, where a^2+b^2 = c^2. The symbols for these triples are (a,b,c). Here, a represents the right-angled triangle's hypotenuse, b its base, and c its perpendicular.
Since we have to find the value of AB.
So we can write it as
EC^2 = AE^2+AC^2
(ED+DC)^2 = AE^2+(AB+BC)^2
Now putting the value
(2+8)^2 = AE^2+(6+AB)^2
10^2 = AE^2+(6+AB)^2
As we know that triplet (6,8,10).
The value of EC is 10, AE = 6, the value of AC can't be 6 because one part of value of AC is already given 6. So the value of AC is 8. AS BC=6, so AB=2.
Hence, the value of AB is 2.
To learn more about Pythagorean triplet link is here
brainly.com/question/24924762
#SPJ4
solve the inequality 11x > 4(1+3x). record your answer in interval notation
Answers
Answer:
(-∞, -4)
Step-by-step explanation:
11x > 4(1+3x)
11x > 4*1+4*3x ==> distribute 4 to 1 and 3x using the distribution property
11x > 4 + 12x ==> simplify
11x-12x > 4 + 12x-12x ==> isolate x by subtracting 12x on both sides
-x > 4
x < -4 ==> when dividing by a negative number, switch the inequality sign
x < -4 can also be written as -∞ < x < -4
This is because x is greater than -∞ but can never equal -∞.
-∞ < x < -4 ==> (-∞, -4)
To learn more about interval notation, click here:
https://brainly.com/question/16768997
A student made a mistake while using similar triangles to find the missing side length indicated by the letter z in the diagram Analyze the student's work and find the state. Explain what was done incorrectly and find the correct solution Student's work to find the value of x
Answers
The students ratio expressed in fraction as 6/4 = 4/x is incorrect for the similar triangles, and the correct ratio is x : 3 = 10 : 6 expressed in fraction as x/3 = 10/6. The value for x = 5.
How to calculate for x for the similar trianglesSince the triangles are similar, it implies that the length 3 of the smaller triangle is similar to the length x of the larger triangle,
Also the length 6 of the smaller triangle is similar to the length of the larger triangle (4 + 6 = 10).
So it will be wrong to write 6/4 = 4/x, rather the correct fraction will be;
x : 3 = 10 : 6
which when expressed as fraction, we get;
x/3 = 10/6
x = (10 × 3)/6
x = 30/6
x = 5
Therefore, the students expression 6/4 = 4/x is incorrect representation for the lengths of the similar triangles. And the correct expression is x/3 = 10/6, which gives us the value of x equal to 5.
Know more about similar triangles here:https://brainly.com/question/14285697
#SPJ1
(please explain :))A 35 foot ladder is set against the side of a house so
that it reaches up 21 feet. If Elijah grabs the ladder at its
base and pulls it 4 feet farther from the house, how far up
the side of the house will the ladder reach now? (The
answer is not 17 ft.) Round to the nearest tenth of a foot.
Answers
Answer:
21.4
Step-by-step explanation:
If the ladder originally reaches up 21 feet on the side of the house, and Elijah pulls it 4 feet farther away from the house, the distance from the base of the ladder to the side of the house will increase by 4 feet. This means that the new distance from the base of the ladder to the side of the house will be 21 feet + 4 feet = 25 feet.
Since the height of the ladder is the same, and the base of the ladder is now 25 feet from the side of the house, the ladder will still reach up 21 feet on the side of the house. Therefore, the new distance from the top of the ladder to the ground will be 25 feet - 21 feet = <<25-21=4>>4 feet.
To find the new distance from the top of the ladder to the side of the house, we can use the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides. In this case, we have a right triangle with legs of lengths 21 feet (the height of the ladder) and 4 feet (the distance from the top of the ladder to the ground), and we want to find the length of the hypotenuse (the distance from the top of the ladder to the side of the house). We can use the formula c^2 = a^2 + b^2 to find the length of the hypotenuse:
c^2 = 21^2 + 4^2
= 441 + 16
= 457
c = sqrt(457)
= 21.37
Therefore, the distance from the top of the ladder to the side of the house is 21.37 feet, and the ladder will reach up 21.37 feet on the side of the house after Elijah pulls it 4 feet farther away. Round to the nearest tenth of a foot, the ladder will reach up 21.4 feet on the side of the house.
The answer would not be 17 feet because the height of the ladder and the distance from the base of the ladder to the side of the house are two separate and independent quantities. The height of the ladder is a fixed distance and does not change, regardless of the position of the base of the ladder. Therefore, even if Elijah pulls the ladder 4 feet farther away from the house, the height of the ladder will still be 21 feet and the ladder will still reach up 21 feet on the side of the house. The only change will be the distance from the base of the ladder to the side of the house, which will increase by 4 feet.