3 years ago

I am confused on this will someone help me?

Mathematics

1 answer:

pshichka [43]3 years ago

5 0

Answer: what are the drop down options

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PLEASE PLEASE HELP THANKS SO MUCH

ruslelena [56]

Answer:

a= 12

b= 9

I hope this helps

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2 years ago

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Beth is making a rope ladder.each step of the ladder is 2 1/3 feet wide.Beth has a rope that is 21 feet long.how many steps can

Marianna [84]

Answer:

Beth can make 9 2 1/3 foot steps

Step-by-step explanation:

21/2.3=9.1

round to 9

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3 years ago

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Farmer bob's square plot ofland is slowly eroding away. Worried about the future of his farm. Farmer Bob measures the rate of er

kow [346]

Answer:

Option A.

Step-by-step explanation:

Area of a square is

$A=x^2$ .... (1)

where, x is side length.

The length of each side of his square plot is decreasing at the constant rate of 2 feet/year.

$\dfrac{dx}{dt}=2$

It is given that bob currently owns 250,000 square feet of land.

Fist find the length of each side.

$A=250000$

$x^2=250000$

Taking square root on both sides.

$x=500$

Differentiate with respect to t.

$\dfrac{dA}{dt}=2x\dfrac{dx}{dt}$

Substitute x=500 and $\frac{dx}{dt}=2$ in the above equation.

$\dfrac{dA}{dt}=2(500)(2)$

$\dfrac{dA}{dt}=2000$

Farmer bob is losing 2,000 square feet of land per year.

Therefore, the correct option is A.

7 0

2 years ago

At a large automobile dealership, you take a random sample of 35 cars and determine that the average cost is $34,330. Which stat

Lina20 [59]

C) you conclude that less than half of the cars on the dealership’s lot cost more than$34,330

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3 years ago

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The value of 4^9 is how many times as great as the value of 4^6? Choices: 3,4,12,64 / I think it’s 64 but I wanna make sure!

Llana [10]

I think it’s 12

Explain :

7 0

3 years ago