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Darya [45]
3 years ago
11

Match each expression to its value.

Mathematics
2 answers:
3241004551 [841]3 years ago
6 0

Answer:

1. 7-5 =2

2. -7 + 5 = -2

3.-7 - 5 = -12

4. 7 - (-5) = 12

Step-by-step explanation:

#4 - The reason it's 12 is because the -5 is in parenthesis which means they want you to find the absolute value of the number and then add it. The absolute value of a negative number is positive.

#3 really you're adding 5 to -7.

#2 opposite of #3, you can think of it as subtracting 5 from -7.

Klio2033 [76]3 years ago
3 0
1) 7-5 = 2
2)-7+ 5 = -2
3) -7-5 = -12
4)7 - (-5) = 12

hope this helps! feel free to mark brainliest
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<img src="https://tex.z-dn.net/?f=%28%20-%208x%7D%5E%7B2%7D%20%20-%205x%20-%206%29%20%2B%20%28%20-%20x%20%7B%20%7D%5E%7B2%7D%20-
Jlenok [28]

Hello! I hope this helps! <33

Answer:

-9x^2-6x-1

Step-by-step explanation:

1.) Remove parantheses

-8x^2-5x-6-x^2-x+5

2.) Group like terms

8x^2-x^2-5x-x-6+5

3.) Add similar elements

-9x^2-5x-x-6+5

4.) Add similar elements

-9x^2-6x-6+5

Answer = -9x^2-6x-6+5

Have a nice day! ;)

8 0
3 years ago
Evaluate the expression for the given values. (12x+5y)/3z, where x = 12, y = 6, and z = 4. (write answer in decimal form)
Pachacha [2.7K]

Answer:

14.5

Step-by-step explanation:

12×12=144 5×6=30 144+30=174 3×4=12 174/12=<em>14.5</em>

5 0
3 years ago
The midpoint of AB is M(−3,2). If the coordinates of A are−7,1), what are the coordinates of B?
sergejj [24]

Answer:

B = (1,3)

Step-by-step explanation:

(- 7 + x)/2 = -3

-7 + x= -3 * 2

x = -6 + 7

x = 1

(1 + y)/2 = 2

1 + y = 2*2

y = 4 - 1

y = 3

3 0
2 years ago
What is the answer for 2+2?​
disa [49]

Answer:

4

Step-by-step explanation:

:)

3 0
3 years ago
Read 2 more answers
Which list is in order from least to greatest?
NeX [460]

Answer:

The first option.

Explanation:

Since these numbers are given in scientific notation, we must first look at the exponent to determine whether or not it's big or small. Negative exponents are less, so we start with that. Immediately, that eliminates the second and third options as -8 is less than -6 and 3. The last two numbers given in the first and last options, however, both have 3 as the exponent. Now, we look at the number given in front. 2.5 is less than 7, so we know that the first option is in order from least to greatest.

4 0
2 years ago
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