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Answer:

2y = 12 is a function

Step-by-step explanation:

In the graph of a function, the value of the x-value in an ordered pair can not be use only once.  The graph in the other problems shows that the same x-value was used more than one time.

Answer:

20/40 = 1/2

Step-by-step explanation:

5/8 * 4/5

multiply the numerator with the numerator and denominator with the denominator

you get 20/40 or 1/2

Answer: 0.5 or 1/2

Step-by-step explanation:

Step-by-step explanation:

(x1,y1) = (-4,0)

(x2,y2) = (0,2)

(y - y1)/(y2 - y1) = (x - x1)/(x2 - x1)

(y - 0)/(2 - 0) = (x + 4)/(0 + 4)

y/2 = (x + 4)/4

4y = 2(x + 4)

2y = x + 4

y = x/2 + 2

Option → C

1. a=-1

3. x=2

5. r=1

7. v=no solution cause 10 cannot equal 0

9. m=2

Answer:

4 * 1.25 =  5

Step-by-step explanation:

4 boxes of pasta (4) at 1.25 (1.25) 'each' (*)

Answer:

5.68*10⁵

Step-by-step explanation:

you can factor 10⁴ at the beginning too but I found it easier to explain what happens this way

Answer:

7/10

Step-by-step explanation:

Try 7/10

(7/10)^2=49/100

Answer:

Yes

Step-by-step explanation:

95 multiplied by 2 is 190

130 multiplied by 2 is 260

190+260 is 450

Answer:

95 x 2=190

130 x 2= 260

260+190= 450

he can and will still have some change

800-450=350

Step-by-step explanation:

hope this helps if not then sorry good luck and bye

The stratified random sample is better because this will lead to more accurate results.

Sampling is a method that implies randomly selecting participants, places, etc. as part of an experiment. There are two main methods for sampling:

The second method is the best to use because this will guarantee in each subarea there is the same number of salt licks. Preventing many salts licks to be together or a subarea to not having any salt licks.

Based on this, we can conclude this method will lead to more accurate results.

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Answer:

Stratified random sampling is the better method to use.

Step-by-step explanation:

Stratified random sampling would be a better method for choosing where to place the salt licks because it will guarantee that each subarea has the same amount of salt licks, and prevent many salt licks from being in the same area or some subareas from having no salt licks at all.

Answer:

1:7

Step-by-step explanation:

12kg : 84kg

12 : 84

1:7

Answer:

A

Step-by-step explanation:

We can calculate the equation of the lines based on two points. First line m:

y = ax +b

where a is the slope and b is the y-intercept. To find the slope we use the x and y of the points as:

a = [tex]a = \frac{y_1-y_2}{x_1-x_2} = \frac{4- -32}{2- -4} = \frac{36}{6} = 6.[/tex]

So:

y = 6x + b

we can find the y intercept by substituting the x and y for one of the points:

solving for b:

b=-32-(6)(-4)= -8.

So the equation is:

y = 6x - 8.

We can change it to:

y + 8 = 6x

8 = 6x - y.

So it’s (A).

Hope that helps!

Answer:

B I think

Step-by-step explanation:

Answer:

The first blue option or 8x - 17 = 5x + 19

Step-by-step explanation:

    They are vertical angles, so they will be set equal to each other.

Have a nice day!

    I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

Answer: Choice C

Domain:  x < -2

Range: y > 1

=================================

Explanation:

When going from the original function [tex]f(x)[/tex] to its corresponding inverse [tex]f^{-1}(x)[/tex], or vice versa, the roles of x and y swap places. The inverse undoes whatever the original function does.

This swap means that the domain and range also swap as well. The original domain x > 1 becomes the range y > 1 for the inverse. The range y < -2 in the original becomes x < -2 which is the domain of the inverse.

The domain and range of the inverse functions are:

We know that two functions are inverses if:

f( g(x)) = x

g( f(x)) = x

So, the domain of f(x) is the range of g(x), and the range of f(x) is the domain of g(x).

Then the domain and range of the inverse function are:

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Answer:

The answer is equivalent

Answer:

3x^4

____

2y^4

Step-by-step explanation:

Answer:

21x^6y^5

------------

14x^2y^9

=

21x^6y^5

-----------

14x^2y^9

=

21x^4

--------

14y^4

=

3x^4

-------

2y^4

Step-by-step explanation:

Answer:

which one is 29???

Step-by-step explanation:

Answer:

103

Step-by-step explanation:

I think

Answer:

[tex]y=-3x+5[/tex]

Step-by-step explanation:

3x+y=5

-3x -3x

y=-3x+5

Answer:

-7=h

Step-by-step explanation:

−3=h+8÷2

−3=h+4

−3-4=h+4-4

-3-4=h

-7=h

Answer:

SAS

Step-by-step explanation:

The triangles are similar by SAS. Two side lengths are given, and we know that vertical angles are congruent.

It is not SSS because we do not know the side lengths of FG and BC.

It is not AA because we do not know two angle measurements.

Answer:

Domain is 5

Step-by-step explanation:

f * g divided by its powers times its x

Answer:

Cleo is: 25 years old

Range of their ages: 7 years

Step-by-step explanation:

Supposing that they are all around roughly the same age, say, Ahmed was 18 and Beth was 20. The mean/average, is taking both ages, and dividing it by how many people there were. Which was just two. So, 18+20=38. 38/2 gets you 19. To get Cleo's age, we would do,

18+20+ Cleo's age. to get a number, divide it by 3, and get 21. Saying that the mean/average is 21, he would definetly be older. So plug in ages. 24+20+18=62. 62/3 gets you 20.67. 25+20+18=63. 63/3 gets you 21. Therefore, he must be 25.

The range is calculated by subtracting the largest number, by the smallest number. And, given that the median, or, middle is 20, we can know that the previous answer is correct. 25-18 to get 7 as the range.

Answer:

Step-by-step explanation:

1.04

.86

.92

Answer:

Step-by-step explanation:

four times the sum of a number and 9 is 16

4 *(x + 9) = 16

4x + 36 = 16

4x = 16 - 36

4x = -20

x = -5

---------------

4 * (-5 + 9) = 16

16 = 16

true

Three zeroes of a third-degree polynomial are given, with the graph passing through the point (3,6). To find the equation of this, first, let us set up how a 3rd-degree polynomial factored out should look like:  

y =  a(x+b)(x+c)(x+d).

Since the zeroes of the function are -3, -2, 1, the equation will look like y = a(x+3)(x+2)(x-1). To solve for a, plug-in x = 3 and y = 6 from the point (3,6). After replacing the variable a in the equation with the answer, you will have the solution for the problem.

Third-degree, with zeros of -3,-2, and 1, and passes through the point (3,9) then the polynomial p(x) is (3/20)(x-1)(x+2)(x+3)

Polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and positive-integer powers of variables

-3 is a root... (x+3) is a factor

-2 is a root... (x+2) is a factor

1 is a root... (x-1) is a factor

p(x) = a(x-1)(x+2)(x+3)

(3, 9) is on graph so p(3)=9

9=a(3-1)(3+2)(3+3)

9=a(2)(5)(6)

9=60a

Divide both sides by 60

a=9/60

a=3/20

p(x) = (3/20)(x-1)(x+2)(x+3)

Hence,  third-degree, with zeros of -3,-2, and 1, and passes through the point (3,9) then the polynomial p(x) is (3/20)(x-1)(x+2)(x+3)

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Answer:

832 fluid ounces.

Step-by-step explanation:

You just multiply 128 by 6.5

There are 4 quarts in a gallon, so:

6.5 * 4 = 26 quarts of milk

And with 32 ounces per quart:

26 * 32 = 832 ounces of  milk

Answer = 1.8

Step 1) 3 ÷ 2.7 = 0.900

Step 2) 0.900 x 2 = 1.8

Time taken by the person to walk the boardwalk to the end and back is 0.9 hours.

Given that, The Coney Island Boardwalk is 2.7 miles long.

The speed formula can be defined as the rate at which an object covers some distance. Speed can be measured as the distance travelled by a body in a given period of time. The SI unit of speed is m/s.

A person walks at the average speed of 3 mph.

We know that, speed = Distance/Time

= 2.7/3

= 0.9 hours

Hence, time taken by the person to walk the boardwalk to the end and back is 0.9 hours.

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