3 years ago

Work out the value of 4(2x+3y) when x=8 and y=-3

Mathematics

2 answers:

timofeeve [1]3 years ago

8 0

I think it may be 28.

Sav [38]3 years ago

3 0

Here’s the steps if you need it. And yes, the answer is 28.

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Tasya [4]

Assuming 6.5×10^3 5.5×10^5 1.1×10^3
are in scientific notation.
6500
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1100

are the choices without scientific notation.
so by looking at this you can assume (E) is the right answer

(E) <span>The greatest number is 5.5 × 105. It is 5,000 times greater than the smallest number.</span>

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2 years ago

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3 years ago

Find the factorization of the polynomial below.<br> 81x2 + 72x + 16

ozzi

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Step-by-step explanation:

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Contact [7]

$Greatest\ common\ factor\ is\ the\ highest\ number\ by\ witch\ 54\ and\ 30\\and\ 78\ can\ be\ divided\\\\
54:2\\
27:3\\9:3\\3:3\\\\
30:2\\
15:3\\
5:5\\\\78:2\\39:3\\13:13
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3 years ago

Sam has been collecting pennies all year long.He has collected 700 pennies.His younger brother started collecting pennies also.H

levacccp [35]

Answer:

70 pennies

Step-by-step explanation:

Sam: 700 pennies

Brother: x pennies

We know his brother has 1/10 of the pennies that Sam has.

700 • 1/10 = 70

Sam's brother has 70 pennies.

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3 years ago