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3 years ago

O points

Mathematics

1 answer:

Ksenya-84 [330]3 years ago

5 0

Step-by-step explanation:

Notice that 15 squared = (3 * 5)^2 = 9 * 25 = 225.

So the area of the cornfield can be 225 square acres.

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Find the surface area of each figure round your answers to the nearest hundredth if necessary

Wewaii [24]

Answer: 410 square km

Step-by-step explanation:

The area of each of the triangles with their base on the 10 km side is $A=\frac{1}{2}(10)(13.4)$ , so their combined area is $(10)(13.4)=134$ .

The area of each of the triangles with their base on the 12 km side is $\frac{1}{2}(12)(13)$ , so their combined area is $(12)(13)=156$ .

The area of the bottom rectangular face is $10(12)=120$ .

So, the total surface area is $120+156+134=\boxed{410 \text{ km}^{2}}$

3 0

2 years ago

What is the area of the triangle? 13 10 12 units

Minchanka [31]

Answer:

I don't really know so sorry about that.

Step-by-step explanation:

3 0

3 years ago

How can you tell the difference between the

kolbaska11 [484]

Answer:

Step-by-step explanation:

A coefficent is the number in front of the letter and a constant is just a number

5 0

3 years ago

Read 2 more answers

Which is the completely factored form of 3xsquared<br> -12x-15?

tekilochka [14]

Answer:

3(x - 5)(x + 1).

Step-by-step explanation:

3x^2 - 12x - 15

Dividing through by 3:

= 3(x^2 - 4x - 5)

We need 2 numbers whose sum is -4 and whose product = -5. That is -5 and +1 , so the factors are:

3(x - 5)(x + 1).

7 0

3 years ago

What does n^9/n^5 equal

vovangra [49]

Answer:

$n^4$

Step-by-step explanation:

Rule:

$\dfrac{a^m}{a^n} = a^{m - n}$

Your problem:

$\dfrac{n^9}{n^5} = n^{9 - 5} = n^4$

4 0

3 years ago