Answer:
Step-by-step explanation:
9 bytes2
This Venn Diagram represents the Science subjects studied by students.
Students
Physics
Biology
CO
6
7
6
2
3
8
4
5
Chemistry
What is the probability that a student, chosen at random,
studies Physics or Chemistry or both?
The probability that a student chosen at random studies physics and chemistry or both is 35/41 = 0.85
What is the probability?Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty.
What is the formula for probability?The formula for probability states that the possibility of an event happening, or P(E), equals the ratio of the number of favorable outcomes to the number of total outcomes. Mathematically, it looks like this: P(E) = favorable outcomes/total outcomes.
The Venn diagram shows:
There are 2 students studying both biology and physics.
Six students study biology and chemistry together.
There are 4 students who study physics and chemistry.
There are 5 students who just study physics.
There are 7 students who just study biology.
There are 8 students who just study chemistry.
There are 6 students that study none.
As a result, there are a total of 41 students, which is equal to 2 + 6 + 4 + 5 + 7 + 8 + 3 + 6 students.
There are 21 students who study chemistry, which is equal to 8 + 6 + 3 + 4 students.
The number of students that studies physics is = 14
The number of students that studies chemistry is = 21
Probability = number of favorable outcomes / total number of outcomes
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Use the Rule of 72 to figure out how long it will take a $1,000 deposit to double at 7% interest. Following this rule will give you the number of years it will take for your money to double.
Using the formula of simple interest, the time period it takes to double the principal is approximately 14.29 years
Simple InterestSimple Interest (S.I.) is the method of calculating the interest amount for a particular principal amount of money at some rate of interest.
The formula is given as
S.I = P(1 + rt)
S.I = Simple InterestP = Principalr = rate t = timeSubstituting the values into the simple interest formula
S.I = 1000(1 + 0.07 * t)
However, we are to calculate the time it takes to double the money
2000 = 1000(1 + 0.07 * t)
2 = 1 + 0.07t
0.07t = 2 - 1
t = 1 / 0.07
t = 14.29 years
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A train takes 16 hours to travel a distance of 35,376 km. Find the distance travelled in one hour if it covers the same distance every hour
Adam currently run about 20 mile per week, and he want to increae hi weekly mileage by 10%. How many mile will Adam run per week? He will run mile per week
What is the solution of the linear-quadratic system of equations? { y = x 2 + 5 x − 3 y − x = 2
The two solutions for the system of equations:
y = x^2+ 5x - 3
y - x = 2
Are:
(-5, -7) and (1, -1)
How to solve the system of equations?Here we have the following system of equations:
y = x^2+ 5x - 3
y - x = 2
We can replace the first equation into the second one to get:
(x^2+ 5x - 3) - x = 2
x^2 + 4x - 3 = 2
x^2 + 4x - 3 - 2 = 0
x^2 + 4x - 5 = 0
Using the quadratic formula, we will get the solutions:
[tex]x = \frac{-4 \pm \sqrt{4^2 - 4*1*-5} }{2} \\\\x = \frac{-4 \pm 6}{2}[/tex]
The two solutions are:
x = (-4 - 6)/2 = -5
x = (-4 + 6)/2 = 1
To find the values of y, we can evaluate the linear equation:
when x = -5
y - (-5) = -2
y + 5 = -2
y = -2 - 5 = -7
So one solution is (-5, -7)
when x = 1
y - 1 = -2
y = -2 + 1 = -1
The other solution is (1, -1)
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use rounding or compatible numbers to estimate each product or quotient.
5 x 2 3/5
a. about 10
b. about 10 3/5
c. about 15
d. about 20
im guessing b
Answer: c.
Step-by-step explanation:
I used rounding: 3 is closer to 2 3/5 than 2 and 5 * 3 is 15, so the answer is about 15.
1. Consider this system of linear equations: -
y=4/5 x-3
y=4/5 x+1
a. Without graphing, determine how many solutions you would expect this system of equations to have. Explain your reasoning.
b. Try solving the system of equations algebraically and describe the result that you get. Does it match your prediction
The system of linear equations have no solution
System of Linear EquationThe system of linear equations is the set of two or more linear equations involving the same variables. Here, linear equations can be defined as the equations of the first order, i.e., the highest power of the variable is 1. Linear equations can have one variable, two variables, or three variables. Thus, we can write linear equations with n number of variables.
In the problem, given the system of linear equations are
y = 4/5x - 3 ...eq(i)
y = 4/5x + 1 ...eq(ii)
a) Since there are two unknown variables(x, y) the number of solutions expected is 2.
b)
From equation (i)
y = 4/5x - 3
Put eq(i) into equ(ii)
4/5x - 3 = 4/5x + 1
0 = 4
There's no solution for x and y
In the calculation, there's no solution for both x and y because the variables in both equation are equal to one another and hence cancel out.
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Find all of the prime numbers between 10 and 20
Answer:
11, 13, 17, and 19!
Step-by-step explanation:
Answer:
11, 13,17 and 19
Step-by-step explanation:
prome numbers are natural numbers that are greater than 1 and not a product of two natural numbers eg 2×5 =10 so it's not a prime number 2×6 or 3×4 =12 it's not also a prime number e.t.c
When Kelsey is not on the moving sidewalk, she can walk the length of the sidewalk in 3 minutes. If she stands on the sidewalk as it moves, she can travel the length in 2 minutes. If Kelsey walks on the sidewalk as it moves, how many minutes will it take her to travel the same distance? Assume she always walks at the same speed.
Answer:
1.2 minutes
Step-by-step explanation:
Kelsey moves 1/3 length per minute. The sidewalk moves 1/2 length per minute. Walking on the sidewalk, Kelsey moves (1/3+1/2) = 5/6 lengths per minute, or 6/5 minutes per length.
So it takes Kelsey 1 1/5 minutes to walk the length on the moving sidewalk.
Help pls explain!!!!!!!!!!!!
The exact value of the logarithmic expression 12 · ㏒₃ [z⁷ / (y⁵ · t²)] is equivalent by logarithm properties to -711 / 5.
How to determine the result of logarithmic expression by logarithmic properties
In this question we must determine the exact value of a logarithmic expression by means of logarithm properties, which are described below:
Logarithm of a product
㏒ (a · b) = ㏒ a + ㏒ b
Logarithm of a division
㏒ (a / b) = ㏒ a - ㏒ b
Logarithm of a power
㏒ aⁿ = n · ㏒ a
Now we proceed to determine the exact value of the expression:
12 · ㏒₃ [z⁷ / (y⁵ · t²)]
12 · [㏒₃ z⁷ - ㏒₃ (y⁵ · t²)]
12 · (㏒₃ z⁷ - ㏒₃ y⁵ - ㏒₃ t²)
12 · (7 · ㏒₃ z - 5 · ㏒₃ y - 2 · ㏒₃ t)
12 · (7 · 7.74 - 5 · 11.03 - 2 · 5.44)
-711 / 5
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Graph y=-2x+5y=−2x+5y, equals, minus, 2, x, plus, 5. NEED HELP PLS
The graph for the linear equation y = -2x + 5 is plotted and shown in the image attached below.
How to Graph an Equation?If we are given an equation of a line that is expressed in slope-intercept form as y = mx + b, it means that the graph will have a slope = rise / run = the value of m, while it would cut across the y-axis at b, that is the y-intercept.
Given the equation in slope-intercept form as y = -2x + 5, it means that the graph will have a slope that has a ratio of the rise to the run as -2, while the line will intercept the y-axis at y = 5.
Therefore, the graph in the image attached below shows the equation, y = -2x + 5.
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which function has the same domain as
[tex]y = 2 \sqrt{x} [/tex]
Both have a domain of [tex][0, \infty)[/tex] which in other words, is the set of nonnegative real numbers. I recommend using a graphing calculator to verify both of these functions have the same domain.
The reason for this is because we need to avoid negative numbers under the square root. So it leads us to [tex]\text{x} \ge 0[/tex]
Pleas help me find the equation for this chart please
Answer: y = 1/12x
Step-by-step explanation:
(24, 2)
(12, 1)
find slope (y2 - y1) / (x2 - x1)
2 - 1 / 24 - 12
1 / 12
find y intercept
y = mx + b
1 = 1/12(12) + b
1 = 1 + b
b = 0
y = 1/12x + 0
y = 1/12x
50 points for helping :)
The line parallel to the given line 2x+2y=-12 is also -1.
Define slope.
Slope of a line refers to the measure of the steepness and the direction of a line.
Illustrate y= m x+ c.
y = mx + c refers to an equation of a line having a gradient of m and a y-intercept of c. This equation is often referred to as the slope-intercept form of the equation of a line.
We know that,
The general equation of a line is y=m x+ c,
where m = slope and b = y-intercept, c is a constant
Now, the equation of the given line is,
2x+2y=-12
⇒x + y=-6
Now expressing the equation in the form of y=m x+ c
So, y=-6-x
Further, on rearranging we get y= (-1) x-6
y = mx + c
So, according to the equation,on comparing we get
m=-1 and c=-6
On comparing, the slope of the given line is -1.
Since, 'The slopes of two parallel line is always equal'.
Thus, the line parallel to the given line is also -1.
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Answer: 2x + 2y = -1
Step-by-step explanation:
Identify the hypothesis and conclusion of the conditional statement.
A prism with bases that are regular polygons is a regular prism
Hypothesis:
A prism based that are regular polygons
It is a regular prism
It is not a regular prism
Conclusion:
A prism based that are regular polygons
It is a regular prism
It is not a regular prism
Re-write the equation in if-then form:
If a prism has bases that are regular polygons, then it is not a regular prism.
If a prism has bases that are regular polygons, then it is a regular prism.
If it is a regular prism, then it is not a prism that has bases that are regular polygons
If it is a regular prism, then it is a prism that has bases that are regular polygons.
The hypothesis is A prism base that are regular polygons
Conclusion: It is a regular prism
If-then form: If a prism has bases that are regular polygons, then it is a regular prism
What is if then statement in math?An if-then statement, also known as a conditional statement, is a set of hypotheses followed by a conclusion.
As indicated, this is p → q. Read this: if p, then q. If the hypothesis is correct but the conclusion is untrue, a conditional statement is false.
The conditional statement is of two parts the hypothesis which is p and the conclusion which is q
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please help 30 points, giving brainliest!!! ( DO ONLY 5-8)
picture is attached :) ty!!
Answer:
5/ Slope is 0
6/ Slope is 4/1
7/ Slope is -4/2 = -2
8/ Slope is undefined
Step-by-step explanation:
5/ Slope is 0 when it goes straight to the right
6/ We see that the y goes up 4, x over 1, so the slope is 4/1
7/ We see that the y goes down by 4, and x over by 2, so the slope is -2
8/ Slope is undefined when it goes straight up!
If you can please give me a Brainliest, thank you!
ANSWER ASAP PLEASE
Little Susie is standing at the top of a lighthouse. She is 96 feet above the ocean. She tosses a ball into the air. The height, h, of the ball after x seconds is given by
h = -16t + 64t + 96 . (there is no t^2 on my question but i think -16 is meant to be t^2 because it's quadratics... PLEASE help...)
a. What is the ball's height after 0.5 seconds?
b. How many seconds does it take to reach maximum height? What is the maximum height?
c. How many seconds does it take for the ball to land in the ocean?
Use complete sentences when explaining or justifying your solutions. Neatly show all algebra work, and upload any pictures or files that support your work.
When t=2+√110/4, the ball will be 50 feet height above the ocean.
What is height?Height is the measurement of someone or something from the top to toe or the base to head.height always refers to something is mesured either its high or low.
As per the given question
Because h=-16t^2+64t+96
So when h = 50
It means -16t^2+64t+96 =50
-16t^2+64+46=0
8t^2-32t-23=0
{∆=b^2-4ac,x= -b+√∆/2a}
So, ∆=(-32)^-4×8×(-23)=1760>0
So t =2- √110/4 <0
Thus tha answer is t = 2+√110/4
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John ha 2,700 eed of corn to plant in 9 row on hi farm. Each row will have the ame number of eed. Part A
Which baic fact can John ue to find out how many eed will be planted in each row?
A. 9
÷
3
=
3
B. 27
÷
9
=
4
C. 27
÷
9
=
3
D. 270
÷
9
=
30
Using division we know that (D) 2700÷9=300 is the basic fact using which John will get t know how many seeds will be planted in a row.
What is division?One of the four fundamental arithmetic operations, or how numbers are combined to create new numbers, is division.
The other operations are multiplication, addition, and subtraction.
In mathematics, the division is the process of dividing a number into equal parts and calculating the maximum number of equal parts that may be formed.
For instance, dividing 15 by 3 results in the division of 15 into 3 groups of 5 each.
The division sign, "," or occasionally "/," is used in computer code.
So, we know that: Total seeds are 2700 and the total rows are 9
If there are the same amount of seeds in each row.
Following that, the number of seeds will be put in each row.
= (Total seeds) ÷ (Total rows)
= 2700÷9
= 300
Therefore, using division we know that (D) 2700÷9=300 is the basic fact using which John will get t know how many seeds will be planted in a row.
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Correct question:
John has 2,700 seeds of corn to plant in 9 rows on his farm. Each row will have the same number of seeds. Part A
Which basic fact can John use to find out how many seeds will be planted in each row?
A. 9÷3=3
B. 27÷9=4
C. 27÷9=3
D. 2700÷9=300
A total of 1,043 players signed up for a citywide soccer league. Each team in the league can have up to 18 members. How many teams will be needed?
Answer:
58 teams
Step-by-step explanation:
This is a division problem. There are a total of 1043 players and there is a max number of 18 members per team. 1043 divided by 18 = 57 and a remainder. Because there is a remainder you add one more team for the remaining members.
Answer: 57.9
Step-by-step explanation:
Based on the given conditions, formulate: 1043 / 18
Evaluate the equation/expression: 57.9444
get the result: 57.9444
After rounding: 57.9
Answer: 57.9
A movie streaming service charges a set fee for
membership each month, plus an additional fee
for the number of movies streamed each
month. If 2 movies are streamed, the cost is
$14 per month, however if 6 movies are
streamed, the cost is $20. Write an equation to
model the cost, y, based on the number of
movies streamed x.
The equation to model the cost 'y' based on the number of movies streamed 'x' would be 14 = 2x and 20 = 6x.
What is a linear equation in one variable?
The linear equation in one variable is an equation which is expressed in the form of ax+b = 0, where a and b are two integers, and x is a variable and has only one solution.
For the first case:
If 2 movies are streamed, the cost is $14 per month
So the cost = number of movies * cost per movie
y = 2*x
14 = 2x
For the second case:
If 6 movies are streamed, the cost is $20 per month
So the cost = number of movies * cost per movie
y = 6*x
20 = 6x
Hence the equation to model the cost 'y' based on the number of movies streamed 'x' would be 14 = 2x and 20 = 6x.
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Andre wanted to measure the width of a creek by his camp but cannot get to the other side of the creek. Andre decided to construct two triangles to determine the width of the creek indirectly. Sighting the position of a tree on the opposite bank of the creek and placing 4 wooden pegs at point N, O, P, and Q as shown in the figure, such that MN is perpendicular to NP, NP is perpendicular to PQ, and O is the midpoint of NP. Andre claims that triangle MNO and triangle QPO are congruent.
Part A: Provide a valid argument, using geometry theorems or postulates, to validate
Andre's claim that AMNO and APQO are congruent.
Part B: Which segment should Andre measure to determine the width of the creek? Explain why.
Use the space below to answer Parts A and B of the question above. Use the CER (Claim, Evidence, Reasoning) method as a guide to your response. You may also upload a screenshot of your work
Triangles MNO and QPO are congruent.
What is congruent triangle?When two triangles are congruent, their three sides and their three angles match precisely.If there is a turn or a flip, the equal sides and angles might not be in the same place, but they are still present.Formally speaking, two sets of points are said to be congruent if—and only if—they can be changed into one another by an isometry, which is a combination of rigid motions like translation, rotation, and reflection. Therefore, if two separate plane figures on a piece of paper can be cut out and then perfectly fitted up, they are congruent.It is given that
O is the midpoint of NP,
NP is perpendicular to MN, and
NP is perpendicular to PQ.
When two lines intersect at a specific point, the opposite angles formed in this situation are equal.Then ∠MNP =∠QPO=90°∠MON=∠QOP∠MOP=∠QONTherefore, Triangles MNO and QPO are congruent.
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......... i need help past due
Answer:
3,2,4
The fastest restaurant for service is the second choice. It takes 2 minutes to service each customer.
Step-by-step explanation:
27/9 = 3 minutes per customer
8/4 = 2 minutes per customer
32/8 = 4 minutes per customer
(a) The area of a rectangular parking lot is 6279 m². If the length of the parking lot is 91 m, what is its width? Width of the parking lot:
Answer:
The width of the parking is 69 meters
Step-by-step explanation:
Rectangle area = L*W
6279 = 91*W
Widht = 6279/91
W = 69 m
Help!! Please!!!!
Helppp
Answer: 60
Step-by-step explanation:
The square root of 144 is 12.
12 = x/5
You multiply 5 on BOTH sides (make sure when you do something to one side you do it to the other)
60 = x
its a 50 50 question both A and B are wrong please help
Answer: d/ 30x +200 <= 1400
Step-by-step explanation:
It can't be the first two answers because the truck can only hold 1400
So it must be < or = 1400
It says that she loaded computers for 200 pounds and x number of books, 30 pounds each.
So the equation is 30x + 200 <=1400
T (6,2) T’ (9,3 find the scale factor was used in the dilation shown
The scale factor of the transformation is 1.5
What is the scale factor of the dilationFrom the question, we have the following parameters that can be used in our computation:
Point T (6,2) T’ (9,3)
Also, see attachment for the missing graph in the question
This means that
The scale factor of the transformation = T'/T
Substitute the known values in the above equation, so, we have the following representation
Scale factor = (9, 3)/(6, 2)
Evaluate
Scale factor = 1.5
Hence, the scale factor is 1.5
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Use identities,evaluate 496X404
Answer: 200384X 403 or 496 X 404
Step-by-step explanation: hope this helped
Factor the expression below. x 2 − 12 x + 36 A. (x + 6)(x + 6) B. (x − 6)(x + 6) C. 6(x2 − x + 6) D. (x − 6)(x − 6)
Answer:
D) = (x - 6 )(x - 6)
Step-by-step explanation:
x^2 - 12x + 36
= x^2 -6x -6x + 36
= x(x - 6) -6(x - 6)
= (x - 6 )(x - 6)
Answer:
[tex]\boxed{\tt (x-6)(x-6)}[/tex]
Step-by-step explanation:
To factor x²−12x+36 we need to find two numbers that add together to get -12 and multiply together to get 36:-
Let's try -6 and -6:-
[tex]\tt -6+-6 = -12[/tex]
[tex]\tt -6\times -6 = 36[/tex]
[tex]\tt (x-6)(x-6)[/tex]
_________________
Hope this helps!
Have a nice day!
Question What is the decibel level of the noise from a motorcycle with intensity 10-2 watts per square inch? Use a logarithmic model to solve. Provide your answer below: 100 dB
The decibel level of the noise from a motorcycle with intensity 10⁻² watts per square inch (W/in²) is equal to 50 dB.
What is sound intensity?In Science, sound intensity can be defined as a measure of the power of a sound wave per unit area. This ultimately implies that, sound intensity is a quantity that is typically be used for measuring the energy of sound and its unit of measurement is Watts per square meter (W/m²) or .
How to calculate the sound intensity level?Mathematically, sound intensity level or decibel level can be calculated by using this formula:
[tex]\beta = 10 log(\frac{I}{I_{ref}} )[/tex]
Note: The reference value of sound intensity is equal to 1.0 × 10⁻¹² watts per square inch (W/in²).
Since the intensity of the noise from this motorcycle is 10⁻² W/in², the decibel level (in dB) would be calculated as follows:
Decibel level, β = 10 × log(10⁻²/10⁻¹²)
Decibel level, β = 10 × log(10¹⁰)
Decibel level, β = 10 × 10
Decibel level, β = 100 dB.
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8) Three hundred students were surveyed about their favorite subject. The results are st
the table below.
How many more students prefer science than math?
The students that prefer science than Maths are 27
How many more students prefer science than math?From the question, we have the following parameters that can be used in our computation:
Math = 24
Science = 33
Total proportion = 100
The additional number of students that prefer science than Maths is calculated as
Additional = (Science - Maths)/Total proportion * Number of students
So, we have
Additional = (33 - 24)/100 * 300
Evaluate
Additional = 27
Hence, the number of students is 27
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