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3 years ago

Select the expression that equals -7 - (-12).

Mathematics

2 answers:

Rashid [163]3 years ago

8 0

Answer:

Step-by-step explanation:

- 7 - (- 12) = - 7 + 12 = 12 - 7 = 5

Bumek [7]3 years ago

7 0

Answer:

The answer is 5

Step-by-step explanation:

This is how you do it.

- 7 - (- 12) = - 7 + 12 = 12 - 7 = 5

Hope it helped!

Please give brainliest.

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Find the area of the kite please help and just don’t write down random answers

Zanzabum

Answer:

187.06 units²

Step-by-step explanation:

Area of kite:

½ × d1 × d2

½d1 = 18sin(30)

½d1 = 9

d1 = 18

d2 = 9/tan(60) + 18cos(30)

= 12sqrt(3)

Area = ½ × 18 × 12sqrt(3)

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3 years ago

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Answer: (a) The rate that the point 8,28 represents is 3.5 cm/s since 28/8 = 3.5

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Step-by-step explanation:

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The equation would be b = -a or a = -b

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The answer is C. The rest of the answers make no sense and do not work.

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The sum of two numbers is 62, and their difference is 8. What are the<br> numbers?

Marina CMI [18]

Answer: 35 and 27

Step-by-step explanation:

We can solve this by using a system of equations

x will be the first number while y will be the second

$x+y=62$

This equation means the two numbers will add to get 62

$x-y=8$

This equation means when subtracted the two numbers will have the difference of 8.

Now I will solve by elimination

$x+y=62\\\\+x-y=8\\2x=70$

When adding the two equations why was eliminated so now we can find the value of x

$2x=70\\\frac{2x}{2} =\frac{70}{2} \\x=35$

Now sub in x into one of the original equations to find the value of y

$35+y=62\\35-35+y=62-35\\y=27$

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3 years ago