PLEASE HELP!!!

Mathematics

1 answer:

Ulleksa [173]3 years ago

7 0

Answer:

135 meters/90 seconds

Step-by-step explanation:

Kathy swims 45 meters in 30 seconds. Divide 90 with 30:

90 seconds/30 seconds = 3 seconds/1 seconds.

Multiply 45 meters with 3 to get the amount she swam in 90 seconds:

45 x 3 = 135

135 meters is your answer.

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If the marginal propensity to consume is 0.9, what is the maximum amount that the equilibrium gross domestic product could chang

Katen [24]

Answer: There is change of $0.9 billion in government expenditures.

Step-by-step explanation:

Since we know that

Marginal propensity to consume tells that the rate at which there is change in consumption due to change in income.

According to our situation, MPC is the change in amount of gross domestic product due to change in government expenditure.

So, it becomes,

$MPC=\dfrac{\text{Change in gross domestic product}}{\text{Change in government expenditure}}\\\\0.9=\dfrac{x}{1}\\\\x=0.9$

Hence, there is change of $0.9 billion in government expenditures.

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3 years ago

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$\bf 3^{n+2}-3^n=8\cdot 3^n\implies \boxed{3^n\cdot 3^2}-3^n=8\cdot 3^n
\\\\\\
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Hi

I belive you add the top side (4) plus the bottom side (9.5) witch would equal 13.5 times the hieght (3) equals 40.5 divided by 2 equals 20.25. the area is 20.25ft squared

another way to do it
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