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s344n2d4d5 [400]
3 years ago
15

Simplify a-c when a=5 c= -1​

Mathematics
2 answers:
nordsb [41]3 years ago
8 0
5- -1= 6


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Natalka [10]3 years ago
8 0

Answer:

5- -1= -6

Step-by-step explanation:

think of it as being in debt, you owe someone 1 dollar than you borrowed 5 more dollars from them now you owe them 6 dollars, that's what subtracting negatives are like.

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Delicious77 [7]
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4 0
3 years ago
Solve: (a)(9a + 4) = 0.
Monica [59]

Answer:

a = -4/9

Step-by-step explanation:

(9a + 4) = 0

Subtract 4 from each side

9a + 4-4 = 0-4

9a = -4

Divide each side by 9

9a/9 = -4/9

a = -4/9

4 0
3 years ago
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A regular 18-sided polygon is rotated with the center of rotation at its center. What is the smallest degree of rotation needed
dem82 [27]
It will be easier to explain how to solve this question in a square. If you rotate 4-sided square from the centre, you need to rotate it 90 degrees. The formula for this would be: 360 ° /the side count. In a square, it would be 360° /4= 90°.

In 18-sided polygon, the calculation would be: 360°/ 18 side= 20°
4 0
3 years ago
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Each elephant at the zoo eats 125 pounds of food per day. How many pounds of food will 18 elephants eat
KATRIN_1 [288]

2250 pounds

Step-by-step explanation:

125pound per elephant

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6 0
3 years ago
-x over 6 -1=-13<br><br><br>show work pleaseee
xenn [34]

Answer:

x=-72

Step-by-step explanation:

-x/6-1=-13

add 1 to both sides

-x/6=-12

multiply 6*-12

-72

x=-72 because -72/6=-12

8 0
3 years ago
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