3 years ago

HELP ASAP. please help the best answer gets brainliest

Mathematics

2 answers:

tatuchka [14]3 years ago

7 0

She should of crossed multipled

Aleonysh [2.5K]3 years ago

4 0

Answer:

She should have cross multiplied.

Step-by-step explanation:

-2.125, or 17/8, is the correct answer

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X,y and z are three consecutive even numbers if y^2 - 2 = 2x + 5Z find x,y and z

Rama09 [41]

Answer:

6, 8, 10

Step-by-step explanation:

x y and z are three consecutive even numbers

it means that you can write y = x + 2

and z = y + 2 = x + 4

$y^2-2=2x+5z\\ (x+2)^2-2=2x+5(x+4)\\x^2+4x+4-2=2x+5x+20$

$x^2+4x+2=7x+20\\x^2+4x+2-7x-20=0\\x^2-3x-18=0\\(x+3)(x-6)=0(x=-3\ or \ x=6)$

so the solutions are

x = 6

y = 8

x = 10

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3 years ago

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Factor each completely. 2x3 - 9x2 + 9x

EleoNora [17]

Answer:

x(2x−3)(x−3)

Step-by-step explanation:

2x^3−9x^2+9x

= x(2x−3)(x−3)

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3 years ago

-(y-7)=14 solve the following equation

enyata [817]

First, distribute the negative sign and get -y + 7 = 14

then subtract 7 from both sides and get -y = 7

Divide both sides by -1 and get y = -7

Hope this helps :)

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3 years ago

How to divide fractions with whole numbers?

ad-work [718]

1.Multiply the bottom number of the fraction by the whole number.
2.Simplify the fraction (if needed)

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3 years ago

Which statement below compares the decimals correctly?

nata0808 [166]

A. 0.65 < 0.77 0.77 is greater than 0.65

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