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RoseWind [281]
3 years ago
13

Simplify the expression below. show your work. -(-7y +12)=7y

Mathematics
1 answer:
AnnyKZ [126]3 years ago
6 0
-(-7y+12) \\\\ =7y-12
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FIND THE VALUEOF THE VARIBLE AND FILL THE BLANK.
ludmilkaskok [199]

Answer:

f = 2

g = 8

h = -9

k = 40

m = 1

Step-by-step explanation:

Equation 1:

23f - 17 = 29

Add 17 to both sides. This undoes the -17.

23f = 29 + 17

Add 17 to 29 to get 46.

23f = 46

Divide both sides by 23. This undoes the multiplication by 23.

f = 46/23

Divide 46 by 23 to get 2.

f = 2

Equation 2:

2(3g + 4) = 56

Divide both sides by 2. This undoes the multiplication by 2.

3g + 4 = 56/2

Divide 56 by 2 to get 28.

3g + 4 = 28

Subtract 4 from both sides. This undoes the +4.

3g = 28 - 4

Subtract 4 from 28 to get 24.

3g = 24

Divide both sides by 3. This undoes the multiplication by 3.

g = 24/3

Divide 24 by 3 to get 8.

g = 8

Equation 3:

h + 9 = 0

Subtract 9 from both sides. This undoes the +9.

h = 0 - 9

Any number subtracted from 0 gives its negation.

h = -9

Equation 4

3(k - 8) = 96

Divide both sides by 3. This undoes the multiplication by 3.

k - 8 = 96/3

Divide 96 by 3 to get 32.

k - 8 = 32

Add 8 to both sides. This undoes the -8.

k = 32 + 8

Add 8 to 32 to get 40.

k = 40

Equation 5:

5m - 5 = 0

Add 5 to both sides. This undoes the -5

5m = 0 + 5

Anything plus 0 gives itself.

5m = 5

Divide both sides by 5. This undoes the multiplication by 5

m = 5/5

Anything divided by itself gives you 1.

m = 1

4 0
3 years ago
How do you 3rd root a number
zepelin [54]
Ex: 7^3=(7×7×7) --- 7×7=49×7=343
7 0
3 years ago
A small box measures 7 in. by 10 in. by <br> 3/4 in. high. Find the volume of the box.
vitfil [10]

Answer:

Volume = 52.5

Step-by-step explanation:

volume of a rectangular 3d shape can be calculated by length*width*height. In this case:

7*10*0.75 = 52.5

8 0
3 years ago
Write the number 4.2 x 10^2 in standard form.
Sav [38]

Answer:

420 (lol)

Step-by-step explanation:

6 0
4 years ago
Use what you know about end behavior to match each function in standard form with its graph below.
LUCKY_DIMON [66]

Answer:

2=C

3=A

4=D

5=B

Step-by-step explanation:

5 0
3 years ago
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