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3 years ago

11

PLEASE HELP ME I AM FAILING!!!!!! THIS IS MY LAST DAY TO DO THIS

1 answer:

ozzi3 years ago

8 0

1) multiplies by 3
2)4.7
3)12

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Simplify 2x^2+6x-7x+8-3x^2+1

Doss [256]

$(((((2*(x^2))+6x)-7x)+8)-3x^2)+1 \\ \\ ((((2x^2 + 6x) - 7x) + 8) - 3x^2) + 1 \\ \\ we \ would \ then \ (pull \ out) \ like \ terms. \\ \\ -x^2 - x + 9 = -1 * (x^2 + x - 9) \\ \\ \left[\begin{array}{ccc} -9 + 1 = -8 \\
 -3 + 3 = 0 \\
 -1 + 9 = 8 \\
\end{array}\right] \\ \\ Your \ answer: \boxed{\boxed{\bf{ -x^2 - x + 9
}}}$

I hope this helps you!

3 0

3 years ago

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Giving brainlist!!!!!!!!

gtnhenbr [62]

Answer: it is the amount of money by the amount of time worked will get u 10 dollares every hour

Step-by-step explanation:

6 0

3 years ago

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The length of a rectangle is 4 meters less then twice its width. the area of the rectangle is 70 meters squared. Find the width

Travka [436]

Answer:

yes es correcto ya que 70 es igual a 4 metros

8 0

3 years ago

Rewrite 4 6/7 as an improper fraction.<br><br> sorry this is the correct question

goblinko [34]

The correct answer is, obviously, 34/7.

8 0

3 years ago

Read 2 more answers

xz_007 [3.2K]

Answer:

1) $n = 84$

2) $n = 78$

3) $n = 24$

4) $n = 16$

5) $n = 35$

Step-by-step explanation:

To solve each proportion, we apply cross multiplication.

Question 1:

$\frac{5}{12} = \frac{35}{n}$

$5n = 35*12$

Simplifying both sides by 5

$n = 7*12 = 84$

Question 2:

$\frac{n}{52} = \frac{180}{120}$

$120n = 52*180$

Simplifying both sides by 20

$6n = 52*9$

Simplifying by 3

$2n = 52*3$

Simplifying by 2

$n = 26*3 = 78$

Question 3:

$\frac{18}{n} = \frac{21}{28}$

$21n = 18*28$

Simplifying both sides by 7

$3n = 18*4$

Simplifying both sides by 3

$n = 6*4 = 24$

Question 4:

$\frac{n}{4} = \frac{24}{6}$

$\frac{n}{4} = 4$

$n = 16$

Question 5:

$\frac{10}{16} = \frac{n}{56}$

$16n = 56*10$

Simplifying by 2, both sides

$8n = 56*5$

Simplifying by 8, both sides

$n = 7*5 = 35$

4 0

3 years ago