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3 years ago

10

Perform the operation (5x^2 + 4) - (-2y^2 + 4)

1 answer:

KIM [24]3 years ago

6 0

5x^2+2y^2 is the answer to you problem.

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Carolyn has 9 quarters, 4 dimes, 7 nickels, and 2 pennies. Write and evaluate the expression to determine how much money she has

zlopas [31]

Answer:

3.02

Step-by-step explanation:

quarters are .25

dimes are .10

nickels are .05

pennies are .01

9 * .25 + 4 * .10 + 7 *.05 + 2 *.01

2.25+0.4+0.35+0.02

3.02

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3 years ago

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3 years ago

∠A and ∠B are supplementary. m∠A = (6x + 5), m∠B = (2x + 15). Find the measure of each angle.

Anastaziya [24]

Answer:

125 and 55

Step-by-step explanation:

180=8x+20

160=8x

x=20

6(20)+5 2(20)+15=

120+5=125 degrees 40+15=55 degrees

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3 years ago

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Vadim26 [7]

Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago