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3 years ago

Solve the equation for y. 8x – 9y = 11

2 answers:

6 0

Watch carefully:

<u>8x - 9y = 11</u>

Add 9y to each side: 8x = 11 + 9y

Subtract 11 from each side: 8x - 11 = 9y

Divide each side by 9 : <em>y = 1/9 of (8x - 11) </em>

Aleksandr-060686 [28]3 years ago

3 0

8x-9y=11 subtract 8x from both sides -9y= -8x+11 divide both sides by -9 y= 8/9x-11/9 hope this helps

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Help me please i dont understand

kipiarov [429]

Answer:

C=75.36

A=452.16

Step-by-step explanation:

C=2x3.14xr

$2$ × $\pi$ × $12=75.36$

A=3.14× $r^{2}$

3.14x12x12=452.16

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3 years ago

50 Points! find x and explain how you found it!

stepan [7]

To find the length of the side opposite the angle while knowing the hypotenuse we can use the sine function:

sin(53) = (side opposite angle of 53 degrees) / hypotenuse

sin(53) = x / 24

x = 24 sin(53)

x = 19.16

Hope that helped

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2 years ago

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What is an equivalent fraction for 4/2

s344n2d4d5 [400]

Answer:2

Step-by-step explanation:

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3 years ago

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Suppose c is inversely proportional to the square of d. If c=6 when d=3⁢, find the constant of proportionality and write the for

NemiM [27]

Answer:

The constant of proportionality is 54.

k = 54

c as a function of d:

$c(d) = \dfrac{54}{d^2}$

$c(7) = \dfrac{54}{49}$

Step-by-step explanation:

We are given the following in the question:

c is inversely proportional to the square of d.

$\Rightarrow c\propto \dfrac{1}{d^2}\\\\\Rightarrow c = \dfrac{k}{d^2}\\\\\text{where k is constant of proportionality}$

When c = 6, d = 3.

Plugging the values, we get,

$6 = \dfrac{k}{3^2}\\\\\Rightarrow k = 6\times 3^2 = 54$

Thus, the constant of proportionality is 54.

c as a function of d can be written as:

$c(d) = \dfrac{54}{d^2}$

We have to find value of c when d = 7.

Putting values, we get,

$c(7) = \dfrac{54}{(7)^2}=\dfrac{54}{49}$

is the required value of c.

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3 years ago

8. Veronica is trying to prove triangle ABC is equal to triangle DEF Which statement would not help to prove the two

Marina86 [1]

Answer:

no answer sorry

Step-by-step explanation:

no answer sorry

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3 years ago