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3 years ago

8

Suzie made a placemat shaped like an equilateral triangle and wants to put trim around the edges. The length of one side of the

placemat is 18 in.
How much trim does Suzie need?

1 answer:

MAXImum [283]3 years ago

8 0

Suzie needs enough trim to cover the perimeter of the triangle. So she need enough to cover each side of 18. Thus 18 x 3 = 54 and 54 is your answer.

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3 years ago

3n *power 2 +10n+7 how to factories and pls tell with solution

tankabanditka [31]

Answer:

(n + 1)(3n + 7)

Step-by-step explanation:

3n² + 10n + 7

Consider the factors of the product of the n² term and the constant term which sum to give the coefficient of the n- term.

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Use these factors to split the n- term

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3 years ago

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chubhunter [2.5K]

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3 years ago

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Two functions are shown in the table below.

SVETLANKA909090 [29]

Answer:

$(d)\ x = 4$

Step-by-step explanation:

Given

$f(x) = -x^2 + 4x + 12$

$g(x) = x + 8$

Required

Find x such that: $f(x) = g(x)$

This gives:

$-x^2 + 4x + 12 = x+8$

Collect like terms

$-x^2 + 4x -x + 12 -8=0$

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Expand

$-x^2 + 4x - x+4 =0$

Factorize

$x(x - 4) - 1(x-4) = 0$

Factor out x - 1

$(x- 1)(x - 4)=0$

Solve:

$x =1\ or\ x = 4$

8 0

3 years ago