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3 years ago

8

Subtract -5x^2 - 3 from -x - 5

1 answer:

Margarita [4]3 years ago

4 0

-x-5
- -5x^2 - 3

or

(-x-5) - (-5x^2 - 3)

First, distribute the -. So then it becomes

-x - 5 + 5x^2 + 3

Since you can't add 5x^2 to -x. You can only combine -5 and 3.
Thus it becomes
- x + 5x^2 -2

However, you order in exponents so

5x^2 - x - 2

would be the correct answer.

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-2×-7y=30 <br>7×+4y=18 <br>×= <br>y=

Sati [7]

Answer:

Answer is -7 Hope this helps :D

Step-by-step explanation:

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3 years ago

What is the lcm of 150 and 180

xxTIMURxx [149]

Answer:

900

Step-by-step explanation:

multiply 2x2x3x3x5x5

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8 0

3 years ago

Help, don’t understand this problem.

Mila [183]

Answer:

(2, 3 )

Step-by-step explanation:

Given the 2 equations

3x - 5y = - 9 → (1)

x + 2y = 8 → (2)

Multiplying (2) by - 3 and adding to (1) will eliminate the x- term, that is

- 3x - 6y = - 24 → (3)

Add (1) and (3) term by term to eliminate x

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- 11y = - 33 ( divide both sides by - 11 )

y = 3

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x + 2(3) = 8

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Solution is (2, 3 )

8 0

3 years ago

Read 2 more answers

You and a friend buy two fruit smoothies and leave a tip. You split the total and your half comes to $3.60. What percent (in dec

KATRIN_1 [288]

You left 20% tip. all you do is divide the tip,0.60, by the total , 3.

5 0

3 years ago

Suppose that you have an enormous grapefruit that is 92% water (by weight). The grapefruit weights 100 pounds. If the water cont

yuradex [85]

Answer:

The weight of grapefruit is now 80 pound.

Step-by-step explanation:

Consider the provided information.

Let the x is the weight loss. The weight of grapefruit is 100 pounds and water is 92%. After evaporation water is 90%.

Thus the weight loss is:

$0.92\times100-0.90(100 - x) = x$

$92-90+0.90x=x$

$2=x-0.90x$

$2=0.1x$

$x=20$

Hence, the weight loss is 80 pounds.

Therefore, New weight is 100 - 20 = 80 pounds

The weight of grapefruit is now 80 pound.

3 0

3 years ago