Considering the distribution given in the table, the desired probability is:
[tex]P(-2 \leq X \leq 2) = 0.6[/tex]
What is the probability distribution given in the table?The distribution is:
P(X = -5) = 0.17.P(X = -3) = 0.13.P(X = -2) = 0.33.P(X = 0) = 0.16.P(X = 2) = 0.11.P(X = 3) = 0.10.The values between -2 and 2(inclusive) are -2, 0 and 2, hence the desired probability is:
[tex]P(-2 \leq X \leq 2) = P(X = -2) + P(X = 0) + P(X = 2) = 0.33 + 0.16 + 0.11 = 0.6[/tex]
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Evaluate: 216 1/2 Question 2 options: A) 9 B) 1 C) 6 D) -3
don’t understand the question would be a pleasure if someone were to explain and answer the questions! thank you
LCM of 4x²-100 and 4x + 20
LCM of 4x²-100 and 4x + 20 is 4(x+5)(x-5)
What is Least Common Multiple?
Least Common Multiple is defined as the smallest number that is a multiple of two or more numbers.
We have to factorise 4x²-100 which is of the form A²-B²,
= (2x)² -(10)²
= (2x+10)(2x-10)
= 2×2(x+5)(x-5)
= 4(x+5)(x-5).
We have to factorise 4x + 20
= 4(x+5)
LCM of 4x²-100 and 4x + 20 = 4(x+5)(x-5).
Hence, LCM of 4x²-100 and 4x + 20 is 4(x+5)(x-5)
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Sanjeet paid $32.85 for 1 file and 3 identical pens. Leon paid $83.50 for 2 files and 8 identical pens. Find the cost of one such pen
The cost of the file is $6.15 and the cost of the pen is $8.9
Solving word problems with systems of linear equations.The interpretation of the given word problem leads to a system of linear equations.
From the given information:
Let the file be denoted with f and the pen be denoted with pf + 3p = 32.85 --- (1)
2f + 8p = 83.5 --- (2)
From equation (1)
f = - 3p+32.85
Replace the value of f in the above equation into equation (2)
2(-3p + 32.85) + 8p = 83.5
2p + 65.7 = 83.5
2p = 83.5 -65.7
2p = 17.8
p = 17.8/2
p = 8.9
Replacing the value of p = 8.9 into f = - 3p+32.85
f = -3(8.9)+32.85
f = 6.15
Therefore, we can conclude that the cost of the file is $6.15 and the cost of the pen is $8.9.
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rewrite y= 16x-32 -3 to make it easy to graph using a translation describe the graph
We can rewrite the given expression to:
[tex]4*\sqrt{x - 2} - 3[/tex]
So the correct option is the third one.
How to rewrite the expression?
Here we have the expression:
[tex]\sqrt{16x - 32} - 3[/tex]
Taking the 16 as a common factor inside the square root:
[tex]\sqrt{16*(x - 2)} - 3[/tex]
and 16 = 4², then:
[tex]\sqrt{16*(x - 2)} - 3 = \sqrt{4^2*(x - 2)} - 3\\\\4* \sqrt{(x - 2)} - 3[/tex]
Now, if the parent function is:
[tex]y = 4*\sqrt{x}[/tex]
Our function is the parent function translated 2 units to the right and 3 units down. The correct option is the third one
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What is the quotient of
6/7 and 3/14 ?
Answer:
4/1 or 4
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
[tex]\frac{\frac{6}{7} }{\frac{3}{14} } =\frac{(6)(14)}{(7)(3)} =\frac{84}{21} =4[/tex]
Hope this helps
Can somebody walk me through this?
2 y + 14 = 6 ( 4 y + 1 )
-------------------------------------------------------------------------------------------------------------
Answer: [tex]\textsf{y = 4/11}[/tex]
-------------------------------------------------------------------------------------------------------------
Given: [tex]\textsf{2y + 14 = 6(4y + 1)}[/tex]
Find: [tex]\textsf{Solve for y}[/tex]
Solution: In order to solve for y we need to distribute the ride side of the expression, simplify, subtract 14 from both sides, subtract 24y from both sides, and divide both sides by -22.
Distribute and simplify
[tex]\textsf{2y + 14 = (6 * 4y) + (6 * 1)}[/tex][tex]\textsf{2y + 14 = 24y + 6}[/tex]Subtract 14 from both sides
[tex]\textsf{2y + 14 - 14 = 24y + 6 - 14}[/tex][tex]\textsf{2y = 24y + 6 - 14}[/tex][tex]\textsf{2y = 24y - 8}[/tex]Subtract 24y from both sides
[tex]\textsf{2y - 24y = 24y - 24y - 8}[/tex][tex]\textsf{2y - 24y = -8}[/tex][tex]\textsf{-22y = -8}[/tex]Divide both sides by -22
[tex]\textsf{-22y/-22 = -8/-22}[/tex][tex]\textsf{y = -8/-22}[/tex][tex]\textsf{y = 8/22}[/tex][tex]\textsf{y = 4/11}[/tex]Therefore, the expression simplifies down to y = 4/11.
What would be your weight on the Moon if your weight on Earth is 80 lbs?
6 times 80 lbs
one-sixth of 80. Four Times 80 lbs one-fourth of 80 lbs
+
Select the correct answer.
The parent function f(x)=√ is transformed to g(x)=2x-3). Which is the graph of g(x)?
The graph is in the attached image.
QUESTION IS DOWN BELOW WORTH 30 POINTS
Answer:
40 yds^3
Step-by-step explanation:
Which expression correctly represents “twice the sum of four and a number”?
Answer:
2 (4+x)
Step-by-step explanation:
4 + x is the sum of four and a number 'x' now multiply by 2
2 ( 4+ x)
Answer two questions about Equations A and B:
A. 2x - 1 = 5x
B. - 1 = 3x
1) How can we get Equation B from Equation A?
Choose 1 answer:
A. Add/Subtract the same quantity to/from both sides
B. Add/Subtract a quantity to/from only one side
C. Rewrite one side (or both) by combining like terms
D. Rewrite one side (or both) using the distributive property
2) Based on the previous answer, are the equations equivalent? In other words, do they have the same solution?
Choose 1 answer:
A. Yes
B. No
1. Rewrite one side (or both) by combining like terms. Option C
2. Yes, the equations are equivalent. Option A
Reasons for the answers
1.
Equation A ; 2x -1 = 5x
Equation B ; -1 = 3x
To get equation B from equation A
2x - 1 = 5x
Collect like terms
-1 = 5x -2x
Subtract the like terms
-1 = 3x
Thus, rewrite one side (or both) by combining like terms. Option C
2. 2x - 1 = 5x ...... equation A
Solution ;
2x -5x = 1
-3x = 1
x = -1/3
-1 = 3x
Solution;
x = -1/3
Thus, the equations are equivalent. Option A
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Select all the correct answers.
For which values is this expression undefined?
x-1/(x^2-2x-3) + 5/(2x^2+2x)
The answer choice which represents values for which the expression is undefined is; x = -1.
What value of x renders the expression undefined?It follows from the task content that the expression in discuss is made up of 2 rational expressions and hence, the value of x which makes the expression undefined is -1 because, upon substitution, we have; (1/0) + (5/0); which yields undefined.
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Answer:
x= 3. x= 0, x= -1
Step-by-step explanation:
Correct on edmentum
The principal represents an amount of money deposited in a savings account subject to
compound interest at the given rate.
A. Find how much money there will be in the account after the given number of years.
B. Find the interest earned.
Click the icon to view some finance formulas.
A. The amount of money in the account after 5 years is $
(Round to the nearest hundredth as needed.)
Principal
$11,000
Rate
5%
Compounded
annually
Time
5 years
Step-by-step explanation:
So the general formula for compound interest is [tex]A = P(1+\frac{r}{n})^{nt}[/tex] where t is typically time in years, and n is how many times it's compounded per year. But in this case it's only compounded 1 time per year so the equation is just [tex]A = P(1+r)^t[/tex]. in this case P is the principal amount, r is the interest, and A is the final amount. So the 5% interest rate becomes 0.05 by dividing by 100 to convert it into decimal form and the principle amount of 11,000. This gives you the formula [tex]A = 11000(1.05)^t[/tex]. This is the answer to the first question where t is the time in years. When it says "Find interest earned" I'm a bit confused, is it giving you x amount of years where you have to calculate the interest earned or does it want a general equation? Because the general equation would be the final amount - the principle amount which calculates the difference. So the equation for interest earned would be [tex]11000(1.05)^t-11000[/tex]. To calculate the amount of money after 5 years you simply plug in 5 as t. this gives you the equation [tex]11000(1.05)^5 \approx 11000(1.276) \approx 14,039.10[/tex]
What is x/7 >= -6? Please Answer!
Step-by-step explanation:
x/7 ≥ -6
we rewrite it as :
x/7 = -6
by cross multiplication
x = -42
In order words:
x ≥ -42
Hope this helps
Good luck ✅
Solve using the Quadratic Formula. 122+6−5=0
Step-by-step explanation:
You can't use quadratic formula in this
Please help!!! If the first 4 terms of a geometric sequence are...
Answer:
c.) aₙ = 5 × 4ⁿ⁻¹
Explanation:
Geometric sequence: aₙ = a(r)ⁿ⁻¹
where 'a' resembles first term of a sequence, 'r' is the common difference.
Here sequence: 5, 20, 80, 320,...
First term (a) = 5
Common difference (d) = second term ÷ first term = 20 ÷ 5 = 4
Hence putting into equation: aₙ = 5(4)ⁿ⁻¹
On a unit circle, the terminal point of 0 is (1, 0). What is tan ?
By using the definitions of unit circle and trigonometric functions, we find that the tangent of the terminal point of the angle is equal to 0.
How to find determine a trigonometric function associated with an unit circle
In trigonometry, an unit circle is a circle with a radius of 1 and used to determine the values of trigonometric functions. There are two fundamental trigonometric functions: (i) sine, (ii) cosine, and the tangent is a derivate trigonometric function, which is defined below:
tan θ = y/x (1)
If we know that x = 1 and y = 0, then the tangent of the terminal point of angle is:
tan θ = 0/1
tan θ = 0
By using the definitions of unit circle and trigonometric functions, we find that the tangent of the terminal point of the angle is equal to 0.
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Answer:
tan= 0
Step-by-step explanation:
^^^correct :)
a) The difference between the circumference and the diameter of a circle is 90cmFind the radius of the circle
Answer:
r=21.01 cm
Step-by-step explanation:
2r = diameter
Circumference of a circle = pi 2r
difference = 90
pi2r - 2r =90
2r (pi-1) =90
90/(2(pi-1) = r = 21.01 cm
Determine the composition of transformations that would map figure ABCD to figure A''B'C''D'
The composition of transformations that would map figure ABCD to figure A''B'C''D' is 180° degree rotation about point C.
What is transformation?It should be noted that transformation simply means the manipulation of a shape or geometric figure.
In this case, the composition of transformations that would map figure ABCD to figure A''B'C''D' is 180° degree rotation about point C.
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Solve log 5x = 3
A)
B)
C)
D)
Answer:
200
Step-by-step explanation:
log a is the same thing as: [tex]log_{10}{a}=b[/tex] which can be rewritten as [tex]10^b=a[/tex] and in general logarithms are in the form [tex]log_ba=c[/tex] which can be written as [tex]b^c=a[/tex]
Rewrite into exponential form
[tex]10^3=5x[/tex]
Simplify exponent
[tex]1000=5x[/tex]
Divide by 5
x=200
Answer:
200
Step-by-step explanation:
I don't know if there are answer choices but the answer is 200
Identify the key features of the following graph. If the Domain is all real numbers, type in "All Real" into the Domain box.
The key features of the graph are:
Vertex (-2, -1)Axis of symmetry x = -2y-intercept (0, 3)MinimumDomain, -∞ < x < ∞Range y > = -1How to determine the key features?The graph has a minimum value at (-2, -1)
This represents the vertex
The x coordinate of the vertex is the axis of symmetry.
So, we have
x = -2
The graph crosses the y-axis at (0, 3)
This represents the y-intercept
The graph opens up.
This means that the vertex is minimum.
The domain is the set of all real number, because the graph extends in both directions on the x-axis without end
While the range is y >= -1, because it has a minimum at this point
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Draw the graphs of the lines below on the same grid to find the coordinates of the point of intersection.
y=3x−3 y=7−2x
The coordinates of the point of intersection of y=3x−3 and y=7−2x is (2, 3)
Graphing linear equationsFrom the question, we are to graph the given equations.
The graph of the equations is attached below.
In the graph, we can observe that the coordinates of the point of intersection of the is (2, 3)
Hence, the coordinates of the point of intersection of y=3x−3 and y=7−2x is (2, 3)
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The height of a projectile launched upward at a speed of 25 meters/second from a height of 70 meters is given by the function h(t)=-5sup(t,2)+25t+70. How long will it take the projectile to hit the ground?
6.5 s take the projectile to hit the ground.
What is projectile?A projectile is any object thrown into space upon which the only acting force is gravity.
Given:
speed = 25 m/s
h(t) = -5t² + 25t + 70
height = 70 m
Time to reach maximum height
( u sin90)/2g
= 25/2*9.8
= 1.275s
Max height = u²Sin²[tex]\theta[/tex]/g
=25*25/9.8
=63.775
So, total height=63.775 + 70 = 133.775 m
Now, time to fall back to the ground
h = ut+(1/2)gt²
t² = (h- ut)2/g
u=0
H= 133.775 m
(133.775*2)/9.8= t²
t² = 27.3010
t= 5.225 s
Total time taken to hit ground
= 5.225 + 1.275
= 6.5 s
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Word Problem
(D) Joshua is going shopping for (E) paintings and (F) spoons. The cost of (E) painting is (B) 10$ and the cost of each (F) spoon is (A) 8$.
If (D) Joshua can spend at most (C) 100$, how many (F) spoons can be purchased?
3. Write an inequality of the form Ax + B ≤ C to represent the word problem using your answers for A, B, and C. Solve the inequality and show your work.
4. Graph the solution to your inequality on a number line or describe, in words, how to graph the inequality on a number line.
The number of spoons that can be purchased is 11, whereas the equation is given as 8x + 10 ≤ 100
What is an equation?An equation is an expression that shows the relationship between two or more variables and numbers.
The cost of each spoon is $8, hence A = 8. The cost of painting is 10, hence B = 10. Joshua can spend at most 100$, C = 100
8x + 10 ≤ 100
x ≤ 11.25
The number of spoons that can be purchased is 11, whereas the equation is given as 8x + 10 ≤ 100
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Answer:
92 spoons can be purchased.
Step-by-step explanation:
10x + 8 ≤ 100
10x + 8 ≤ 100
8 - 8 10x 100 - 8
10x ≤ 92
x = 1/5
10 x 1/5 = 92.
<---------------------------------------------------------------------------------------------------------->
<----------------------------------------------------0---------------------------- 92
For the system of inequalities below, which ordered pair is a solution?
3x-y<2
3y<9x-6
The solution to the given pair of inequalities is at any point on the line
System of inequalitiesInequalities are expressions that are not separated by an equal sign. Given the system of inequalities as shown:
3x-y<2
3y<9x-6
The solution of the system of inequality is the point of intersection of the lines. From the graphed line below, you can see that the point of intersection is at any point on the line since the lines are the same
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A basket of oranges has 10 fruits, of which 4 are bad. Three balls are drawn at random.a)Calculate the probability of getting 3 bad balls.b)Calculate the probability of getting 1 bad fruit.c)Calculate the probability of getting at least one bad fruit.d)Calculate the probability of getting the most 2 bad fruits
Using the hypergeometric distribution, the probabilities are given as follows:
a) 0.0333 = 3.33%.
b) 0.5 = 50%.
c) 0.8333 = 83.33%.
d) 0.9667 = 96.67%.
What is the hypergeometric distribution formula?The formula is:
[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}[/tex]
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
The parameters are:
x is the number of successes.N is the size of the population.n is the size of the sample.k is the total number of desired outcomes.The values of the parameters are:
N = 10, n = 3, k = 4.
Item a:
The probability is P(X = 3), hence:
[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}[/tex]
[tex]P(X = 3) = h(3,10,3,4) = \frac{C_{4,3}C_{6,0}}{C_{10,3}} = 0.0333[/tex]
Item b:
The probability is P(X = 1), hence:
[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}[/tex]
[tex]P(X = 1) = h(1,10,3,4) = \frac{C_{4,1}C_{6,2}}{C_{10,3}} = 0.5[/tex]
Item c:
The probability is:
[tex]P(X \geq 1) = 1 - P(X = 0)[/tex]
In which:
[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}[/tex]
[tex]P(X = 0) = h(0,10,3,4) = \frac{C_{4,0}C_{6,3}}{C_{10,3}} = 0.1667[/tex]
Then:
[tex]P(X \geq 1) = 1 - P(X = 0) = 1 - 0.1667 = 0.8333[/tex]
Item d:
The probability is:
[tex]P(X \leq 2) = 1 - P(X = 3)[/tex].
Considering item a:
[tex]P(X \leq 2) = 1 - P(X = 3) = 1 - 0.0333 = 0.9667[/tex]
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Let [tex]O[/tex] be the random variable for the number of bad oranges picked out. Then
[tex]P(O=o) = \dfrac{\dbinom6{3-o} \dbinom4o}{\dbinom{10}3}[/tex]
if [tex]o\in\{0,1,2,3\}[/tex] and zero otherwise, where
[tex]\dbinom nk = \dfrac{n!}{k!(n-k)!}[/tex]
is the so-called binomial coefficient.
(a) Of the 6 good oranges, you pick 0. Of the 3 bad oranges, you pick 3. Of the 10 total oranges, you pick 3. So the probability of picking out all bad oranges is
[tex]P(O=3) = \dfrac{\dbinom60 \dbinom43}{\dbinom{10}3} = \boxed{\dfrac1{30}}[/tex]
(b) By similar reasoning, the probability of drawing exactly 1 bad orange is
[tex]P(O=1) = \dfrac{\dbinom62 \dbinom41}{\dbinom{10}3} = \boxed{\dfrac12}[/tex]
(c) "At least 1 bad orange" means you pick out 1, 2, or 3 bad oranges. These events are mutually exclusive, and we already know the probabilities of picking out exactly 1 or all 3 bad oranges. The remaining probability of drawing 2 bad oranges is
[tex]P(O=2) = \dfrac{\dbinom61 \dbinom42}{\dbinom{10}3} = \dfrac3{10}[/tex]
so the overall probability of drawing at least 1 bad orange is
[tex]P(O\ge1) = P(O=1)+P(O=2)+P(O=3) =\dfrac1{30} + \dfrac3{10} + \dfrac12 = \boxed{\dfrac56}[/tex]
(d) I assume you mean "at most 2 bad oranges," meaning you pick out 0, 1, or 2 bad oranges. Again, these events are mutually exclusive, and the probability of picking out no bad oranges is
[tex]P(O=0) = \dfrac{\dbinom63 \dbinom40}{\dbinom{10}3} = \dfrac16[/tex]
hence the probability of drawings at most 2 bad oranges is
[tex]P(O\le2) = P(O=0) + P(O=1) + P(O=2) = \dfrac16 + \dfrac12 + \dfrac3{10} = \boxed{\dfrac{29}{30}}[/tex]
G.SRT.1 In the coordinate plane, quadrilateral ABCD has vertices A (1, 1), * 1 point B (5,1), C (5,9), and D (1, 9). Quadrilateral FGHJ is shown in the coordinate plane below. What are the scale factor and the center of dilation that map quadrilateral BCD onto quadrilateral FGHJ?
Based on the vertices of quadrilateral ABCD and Quadrilateral FGHJ, A. The scale factor is 1/2, and the center of dilation is point A.
What is the scale factor?First, note the vertices of Quadrilateral FGHJ:
F(1,1) G(3 ,1) J (1 , 5) H(3 , 5)
Find the lengths of the sides of both quadrilaterals:
FG = (3, 1) - (1, 1) AB = (5,1) - (1, 1)
= (2,0) = (4, 0)
FH = (3, 5) - (1, 1) AC = (5,9) - (1, 1)
= (2,4) = (4, 8)
AB is twice the size of FG.
AC is twice the size of FH
This shows that quadrilateral FGHJ is 1/2 the size of quadrilateral ABCD.
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Find the outliers in the given data set below. 69, 16, 79, 80, 82
Answer:
16
Step-by-step explanation:
The outlier in the given dataset is "16".
Given is a data set 69, 16, 79, 80, 82, we need to determine the outliners of the set,
To identify outliers in a dataset, we generally use a statistical method such as the z-score or the IQR (interquartile range).
Since, the provided dataset is small with only five values, we can manually identify the outliers by observing the data.
An outlier is a value that significantly deviates from the rest of the dataset.
Let's examine the given dataset:
69, 16, 79, 80, 82
To identify outliers, we can consider any data points that are notably different from the others.
In this case, it seems that the value "16" is considerably lower than the other values.
Let's label it as a potential outlier.
Therefore, the outlier in the given dataset is "16".
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HELP ASAP!!!!!!
Ken and Betty each write a proof of the statement: if m
The statement third "Betty wrote an indirect proof using contradiction' and statement fourth "Ken wrote direct proof using deductive evidence" are correct.
What is an angle?When two lines or rays converge at the same point, the measurement between them is called a "Angle."
We have Ken's statements are shown in the table:
Angle AOC = Angle BOD (given)
Angle AOB + Angle BOC = Angle BOC + Angle COD (angle addition postulate)
Angle AOB = ANgle COD (subtraction property of equality)
Ken wrote direct proof using deductive evidence.
As we can in betty's proof:
Betty wrote an indirect proof using contradiction.
Thus, the statement third "Betty wrote an indirect proof using contradiction' and statement fourth "Ken wrote direct proof using deductive evidence" are correct.
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