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2 years ago

What is the factorization of the expression below?

Mathematics

2 answers:

Nataly_w [17]2 years ago

8 0

Answer:

$(4x+7)(4x-7)$

Step by step explanation:

$16x^2 -49\\\\=(4x)^2-7^2\\\\=(4x+7)(4x-7)~~~~~~~~~~;[a^2-b^2 =(a+b)(a-b)]$

Sergio039 [100]2 years ago

4 0

Its A (4x+7)(4x-7) when factored

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Solve for y x+y= -15

Illusion [34]

X + y = -15. Subtract x from both sides.

y = -x - 15. This is as far as we can go with the provided information.

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3 years ago

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Answer:

Step-by-step explanation:

volume= base•width•hight

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Find the perimeter of the quadrilateral.

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Question:

Find the perimeter of the quadrilateral. if x = 2 the perimeter is ___ inched.

The complete figure of this question is attached below

Answer:

<h3>The perimeter of the quadrilateral is 129 inches</h3>

Solution:

The complete figure of this question is attached below

Given that, a quadrilateral with,

Side lengths are:

$4x^2 + 8x\ inches \\\\3x^2-5x+20\ inches \\\\7x + 30\ inches \\\\31\ inches$

The values of the side lengths when x = 2 are

$(4x^2+8x)=(4\times 2^2+8\times 2)=(4\times 4+16)=16+16=32\ inch\\\\(3x^2-5x+20)=(3\times 2^2-5\times 2+20)=(3\times 4-10+20)=12+10=22\ inch\\\\(7x+30)=(7\times 2+30)=14+30=44\ inch$

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3 years ago

Need help ASAP DUE SOON AND PLEASE SHOW WORk!!!!

Svetradugi [14.3K]

Answer:

87.92 inches cubed or 87.92 in.^3

Step-by-step explanation:

The base of a cylinder is a circle, so we need to calculate the area of the circle first. The equation for the area of a circle is:

area (a) = pi * r^2 =3.14*2*2 =12.56sq.inches

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volume of cylinder = area of the base * the height

= 12.56 * 7

= 87.92 inches cubed or 87.92 in.^3

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3 years ago

You have entered a pie baking contest. In the contest, you must make several pies for the judges to taste. You will make your fa

andreyandreev [35.5K]

Answer:

x=2.5 cups are needed for 2 pies

Step-by-step explanation:

4/5 or 0.8

Fraction form: 4/5x = 2 x= 5/4

Decimial form: 0.8x = 2 x = 2.5

Mixed number form: 2 1/2

Hope that helped :)

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2 years ago