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3 years ago

Which expression is equivalent? −4(5x + 2)

Mathematics

2 answers:

Nady [450]3 years ago

6 0

Hello!

<u><em>Answer: ⇒D. -20x-8</em></u>

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Step-by-step explanation:

First apply the distributive law.

$a=-4, b=5x, c=2$

$=-4*5x+(-4)*2$

Then you apply minus-plus rules.

$=-4*5x-4*2$

Simplify its should be the correct answer.

$=-20x-8$

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Hope this helps!

Thank you for posting your question at here on brainly.

Have a great day!

-Charlie

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Vesnalui [34]3 years ago

4 0

Answer:

its D because in usatestprep i got it wrong and it give me the answer!$$$

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I need help with this problem ASAP

omeli [17]

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I am not sure how to explain it but here you go

7 0

2 years ago

Round each number to the nearest hundred and estimate the sum. 1,382 + 966

Daniel [21]

Answer:

1,500

Step-by-step explanation:

1,382 + 966

Rounding to the nearest hundred would be:

1,400 + 1000

= 1,500

8 0

3 years ago

What is the answer to this?

Keith_Richards [23]

Answer:

Y = 28.31

Z = 13.29

Angle A = 28

Step-by-step explanation:

For Angle A:

Remember a triangle has a total of 180 degree angles. So set up your formula as

180 - 62 -90 = Angle A

For Y:

The sine of an angle is equal to the ratio of the opposite side to the hypotenuse.

sin (B) = opp/hyp or b/c or (y)

sinB = 62

b = 25

Rewrite as c=b/2SinB -> c=25/sin62 -> Y = 28.31

For Z:

Use the Pythagorean theorem to find the unknown side.

$z^{2} = 28.31^{2} - 25^{2}$

z = 13.29

3 0

3 years ago

My grandmother recipe for muffins calls for 4 tsp baking powder and 2.5 c of flour how much baking powder will be needed if i us

Korvikt [17]

Answer:

Step-by-step explanation:

15/2.5=6

multiply 4 by 6 and you get 24.

3 0

3 years ago

Pls help me! 19 and 20.

Murljashka [212]

Answer:

See below ↓

Step-by-step explanation:

19.

$\frac{x-1}{2} - \frac{x-3}{5} - \frac{x-7}{10} + \frac{x-2}{5}$
$\frac{5(x-1)-2(x-3)-(x-7)+2(x-2)}{10}$
$\frac{5x-5-2x+6-x+7+2x-4}{10}$
$\frac{4x+4}{10}$
$\frac{2x+2}{5}$

20.

$\frac{2x+3}{2x} + \frac{x+3}{4x} - \frac{18x+6}{8x^{2} }$
$\frac{4x(2x+3)+2x(x+3)-(18x+6)}{8x^{2} }$
$\frac{8x^{2} +12x+2x^{2} +6x-18x-6}{8x^{2} }$
$\frac{10x^{2}-6}{8x^{2} }$
$\frac{5x^{2}-3}{4x^{2} }$

4 0

2 years ago