3 years ago

HELP PICTURE IS SHOWN

Mathematics

1 answer:

Lynna [10]3 years ago

6 0

Its A because my class is litterally studing that now

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A jar contains only dimes and nickels. The total number of coins in the jar is

pogonyaev

Answer:

5 dimes and 10 nickels

Step-by-step explanation:

0.1d + 0.05n = 1

d + n = 15

d + 0.5n = 10

d + n = 15

0.5n = 5

n = 10

d + n = 15

d + 10 = 15

d = 5

Answer: 5 dimes and 10 nickels

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2 years ago

A rectangular prism with integer side lengths has two faces with areas 15 and 21. What could its volume be?

kari74 [83]

Answer:

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Step-by-step explanation:

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3 years ago

Three consecutive even integers have a sum 78

andreev551 [17]

The answer is 24, 26, and 28

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3 years ago

What is 5 1/4 as a percent as a fraction in simplest form

sashaice [31]

21/100 is the answer. Hope this helped!

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3 years ago

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Write two polynomials with a difference of 2x2 + x + 3

Anettt [7]

Answer:

The two polynomial CAN be $5x^4+5x^3+8x^2+x+6$ and $5x^4+5x^3+8x^2+2x+13$ .

Step-by-step explanation:

Step 1: Simplify the expression:

$2*2 + x + 3$

$4+x+3$

$x+7$

Step 2: Think of a random polynomial:

$5x^4+5x^3+8x^2+x+6$

Step 3: Either add your "random polynomial" by $x+7$ or subtract it.

I want to add it so...

$5x^4+5x^3+8x^2+x+6+x+7$

= $5x^4+5x^3+8x^2+2x+13$

Check by subtracting $5x^4+5x^3+8x^2+x+6$ and $5x^4+5x^3+8x^2+2x+13$ .

$5x^4+5x^3+8x^2+2x+13$

- $5x^4+5x^3+8x^2+x+6$

_____________________

$0x^4 - 0x^3 -0x^2 +x +7$ or  $x+7$ 

5 0

3 years ago