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3 years ago

Answer correctly for brainly (8th grade math)

Mathematics

1 answer:

kondaur [170]3 years ago

3 0

Answer:

plays an instrument/plays sports = 0.46

plays an instrument/does not play sports = 0.54

does not play an instrument/plays sports = 0.73

does not play an instrument/does not play sports = 0.27

Step-by-step explanation:

plays an instrument/plays sports = 6 divided by 13

plays an instrument/does not play sports = 7 divided by 13

~ you divide by 13 since the row's numbers add up to 13

does not play an instrument/plays sports = 8 divided by 11

does not play an instrument/does not play sports = 3 divided by 11

~ you divide by 11 since the row's numbers add up to 11

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HELP (I WILL GIVE 30 POINTS)

pav-90 [236]

Answer:

4 ± 1/2sqrt(x) = y

This is not a function

Step-by-step explanation:

f(x) = (8-2x)^2

y = (8-2x)^2

To find the inverse function, exchange x and y and then solve for y

x = (8-2y)^2

Take the square root of each side

±sqrt(x) = 8-2y

Subtract 8 from each side

-8±sqrt(x) = 8-8-2y

-8±sqrt(x) = -2y

Divide by -2

-8/-2± 1/2sqrt(x) = -2/-2y

4 ± 1/2sqrt(x) = y

This is not a function

3 0

3 years ago

Read 2 more answers

two sides of a scalene triangle measure 15cm and 12cm if the perimeter of the triangle is 40cm, fine the length of the third sid

Hoochie [10]

Answer:

40-15-12= 13

Step-by-step explanation:

15 + 12 + x = 40

Solve for x

8 0

3 years ago

What is the value of x? Enter your answer in the box. x = ?

Tema [17]

The partial circles in each corner mean that all 3 angles are identical, which means this is an equatorial triangle. In an equatorial triangle all three sides are the same.

We can set two of the equations to equal each other and solve for x:

3x -5 = 2x +20

Add 5 to each side:

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Subtract 2x from each side:

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3 years ago

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Aleksandr-060686 [28]

The answer is d which is 6/5

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4 years ago

What are the solutions of x2 - 2x +37 = 0 ?

ale4655 [162]

Answer:

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Step-by-step explanation:

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