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3 years ago

Which of the following expressions are equivalent to 48^3-75a? Select all that apply.

1 answer:

4 0

$48a^3-75a=3a\cdot16a^2-3a\cdot25=\underbrace{3a(16a^2-25)}_{B.)}\\\\=3a\left[(4a)^2-5^2\right]=\underbrace{3a(4a-5)(4a+5)}_{D.)}=\underbrace{-3a(5-4a)(5+4a)}_{F.)}$

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Mr. Morris is going to save money and replace his sailboat's mainsail himself. He must determine the area of the mainsail in ord

Readme [11.4K]

Answer:

Area of parallelogram is 150 square ft

Step-by-step explanation:

Given the parallelogram in the figure whose height is 10 ft and base length is 15 ft.

Area of parallelogram is $base \times height$

= $15\times 10ft^2$

= 150 square ft

now we have to decompose this parallelogram into rectangles and triangles and then to determine the shape.

The given parallelogram KLMN can be decomposed into 2 triangles and one rectangle.

2 right angled triangles KPL and NOM by construction

$KL^{2}=KP^{2}+PL^{2}=10^{2}+2^{2} =100+4=104$

⇒ $KL=\sqrt104=10.2 ft=MN$ (∵ KLMN is a parallelogram)

Hence, dimension of triangles are 10 ft, 2 ft and 10.2 ft

Now rectangle KPON with dimension 15 ft and 10 ft because KP and NO are perpendiculars on LM.

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4 years ago

Help need to divide the fraction

antoniya [11.8K]

Hello There!

So we divide fractions by multiplying by the reciprocal.

So let’s change 6/7 divided by 3/8 to 6/7 multiplied by 8/3.

Once we do that, we can start our multiplication.

Once we multiply, we get 48/21

We can both divide these by 3 to simplify it so once we divide we will get

16/7

This can be turned in a mix number and it would be 2 and 2/7

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3 years ago

What is the leading coefficient of this polynomial?<br> f(x) = 3x2 -<br> 175 + 7x10<br> Answer here

hammer [34]

Answer:

Step-by-step explanation:

Because it is the coefficient that has the variable with the greatest exponent

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3 years ago

Which of the following are the solutions to the equation 2-4x^2=-110

Nookie1986 [14]

X1,2 = + 5.292 i think but i cant see the awsner choice

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3 years ago

What statement complete the proof below given 3x+ 7=x-5

Advocard [28]

Proof: x=-6

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3 years ago

Read 2 more answers