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3 years ago

10

Tell how the Communicative property of addition and the Associative property of addition can help solve the problem mentally 8+(

-5)+(-8)

1 answer:

Masteriza [31]3 years ago

6 0

Answer:

You can swich the numbers around to make the equation easier.

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Step-by-step explanation:

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vfiekz [6]

Answer:

Step-by-step explanation:

3x + 7 + 9x - 43 = 180

12x = 216

x = 18

m∠4 = 3(18) + 7 = 61°

m∠5 = 9(18) − 43 = 119°

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3 years ago

SOMEONE PLEASE HELP THIS IS DUE RIGHT NOW I WILL MARK BRINLIEST

charle [14.2K]

Answer:

i think it's B.2

Step-by-step explanation:

Because it has two sides equal or in this case two sides are the same

8 0

3 years ago

Read 2 more answers

Under what circumstances will the chi-square test for goodness of fit produce a large value for chi-square?

Levart [38]

Under what circumstances will the chi-square test for goodness of fit produce a large value for chi-square? ANSWER: to test hypotheses about the shape or proportions of a population distribution

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3 years ago

Which of the following is a solution of x^2 2x = −2?

dem82 [27]

$x^2+2x=-2\\
x^2+2x+1=-1\\
(x+1)^2=-1\\
x+1=\sqrt{-1}\vee x+1=-\sqrt{1}\\
x=-1+i \vee x=-1-i
$

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3 years ago

What are the intercepts of 2x=4y+4

puteri [66]

X intercept (2,0)
Y intercept (0,-1)

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3 years ago