Please help, test due in 2 hours! Will give good review and brainliest. :)

Evaluate -3(9+y) if y = -7

mario62 [17]

Answer:

-6

Step-by-step explanation:

Substitutet -7 for y in -3(9+y): -3(9 - 7) = -3(2) = -6

6 0

3 years ago

Read 2 more answers

HELPPPPPP MEEEE PLEASE

Igoryamba

Answer:

yse

Step-by-step explanation:

bakit ano ang maitotolong

3 0

3 years ago

U(x)=-2-2x+7 please help

Black_prince [1.1K]

Simplifying u(x) = -2 + -2x + 7 Multiply u * x ux = -2 + -2x + 7 Reorder the terms: ux = -2 + 7 + -2x Combine like terms: -2 + 7 = 5 ux = 5 + -2x Solving ux = 5 + -2x Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Divide each side by 'x'. u = 5x-1 + -2 Simplifying u = 5x-1 + -2 Reorder the terms: u = -2 + 5x-1

4 0

3 years ago

How much longer than 5/8 inch is 7/8 inch?

ivanzaharov [21]

Its 1/4 inch longer.

hope this helps you

4 0

3 years ago

X^4-7x^2+9 (resolve into factors) Please help me I will mark you as brainliest.

SSSSS [86.1K]

Factoring x4-7x2-9 

Factoring x4-7x2-9 The first term is, x4 its coefficient is 1 .

Factoring x4-7x2-9 The first term is, x4 its coefficient is 1 .The middle term is, -7x2 its coefficient is -7 .

Factoring x4-7x2-9 The first term is, x4 its coefficient is 1 .The middle term is, -7x2 its coefficient is -7 .The last term, "the constant", is -9 

Factoring x4-7x2-9 The first term is, x4 its coefficient is 1 .The middle term is, -7x2 its coefficient is -7 .The last term, "the constant", is -9 Step-1 : Multiply the coefficient of the first term by the constant 1 • -9 = -9

Factoring x4-7x2-9 The first term is, x4 its coefficient is 1 .The middle term is, -7x2 its coefficient is -7 .The last term, "the constant", is -9 Step-1 : Multiply the coefficient of the first term by the constant 1 • -9 = -9 Step-2 : Find two factors of -9 whose sum equals the coefficient of the middle term, which is -7 .

Factoring x4-7x2-9 The first term is, x4 its coefficient is 1 .The middle term is, -7x2 its coefficient is -7 .The last term, "the constant", is -9 Step-1 : Multiply the coefficient of the first term by the constant 1 • -9 = -9 Step-2 : Find two factors of -9 whose sum equals the coefficient of the middle term, which is -7 . -9 + 1 = -8

Factoring x4-7x2-9 The first term is, x4 its coefficient is 1 .The middle term is, -7x2 its coefficient is -7 .The last term, "the constant", is -9 Step-1 : Multiply the coefficient of the first term by the constant 1 • -9 = -9 Step-2 : Find two factors of -9 whose sum equals the coefficient of the middle term, which is -7 . -9 + 1 = -8 -3 + 3 = 0

Factoring x4-7x2-9 The first term is, x4 its coefficient is 1 .The middle term is, -7x2 its coefficient is -7 .The last term, "the constant", is -9 Step-1 : Multiply the coefficient of the first term by the constant 1 • -9 = -9 Step-2 : Find two factors of -9 whose sum equals the coefficient of the middle term, which is -7 . -9 + 1 = -8 -3 + 3 = 0 -1 + 9 = 8

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5 0

3 years ago