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3 years ago

11

A farmer needs to plow his field. The field is 45 meters by 42 meters. What is the total area of the field that the farmer needs

to plow?
answer choices: A 174m3 , B 174 m2 , C 1,890 m3 , D 1,890 m2

1 answer:

Serhud [2]3 years ago

4 0

Answer:

D, 1890 M 2

Step-by-step explanation:

45 x 42 = 1890

as a 3d shape, this would be m3

but because its flat, 2d, its m2

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Please help ASAP!!!!!

Viefleur [7K]

Use pythagorean’s theorem
as you can see it’s a right isosceles triangle

so your equation is adapted to this:
p^2 + p^2=44^2
add like terms and simplify
2p^2=1936
divide by 2
p^2=968
square root
p= √968
simplify
p=22√2

the answer would be your second option

3 0

3 years ago

Can someone please explain how to do these?

Pani-rosa [81]

Answer:

<u>First question answer:</u> The limit is 69

<u>Second question answer:</u> The limit is 5

Step-by-step explanation:

For the first limit, plug in $x=8$ in the expression $(9x-3)$ , that's the answer for linear equations and limits.

So we have:

$9x-3\\9(8)-3\\72-3\\69$

The answer is 69

For the second limit, if we do same thing as the first, we will get division by 0. Also indeterminate form, 0 divided by 0. Thus we would think that the limit does not exist. But if we do some algebra, we can easily simplify it and thus plug in the value $x=1$ into the simplified expression to get the correct answer. Shown below:

$\frac{x^2+8x-9}{x^2-1}\\\frac{(x+9)(x-1)}{(x-1)(x+1)}\\\frac{x+9}{x+1}$

<em>Now putting 1 in $x$ gives us the limit:</em>

$\frac{x+9}{x+1}\\\frac{1+9}{1+1}=\frac{10}{2}=5$

So the answer is 5

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3 years ago

Which of the functions below is the inverse of the logarithm function?

jekas [21]

Exponential function because log deals with finding the exponent so the inverse is an exponential function

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3 years ago

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How tall is the welcome sign

lisov135 [29]

Answer:

the sign is 5 ft tall

Step-by-step explanation:

30 % 12.5=2.4

12 % 2.4=5

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3 years ago

The volume of a triangular prism is 264 cubic feet. The area of a base of the prism is 48 square feet. Find the height of the pr

Molodets [167]

Height=5.5ft , because the cubic feet of the prisim divded by the square feet of 48 is 5.5 feet

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3 years ago