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Tatiana [17]
3 years ago
11

What is the value of x in the equation below? -3-(-8)-(-2)= X

Mathematics
2 answers:
qwelly [4]3 years ago
6 0

Answer:

x = 7

Step-by-step explanation:

Marysya12 [62]3 years ago
5 0
The answer is -3-(-8)-(-2)=7
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Determine the sum of the arithmetic series: 5+18 +31 +44 + ... 161.
Finger [1]

Answer:

1079

Step-by-step explanation:

Hello,

18-5 = 13

31-18=13

44-31=13

161=5+13*12

So we need to compute

\displaystyle \sum_{k=0}^{k=12} \ {(5+13k)}\\\\=\sum_{k=0}^{k=12} \ {(5)} + 13\sum_{k=1}^{k=12} \ {(k)}\\\\=13*5+13*\dfrac{12*13}{2}\\\\=65+13*13*6\\\\=65+1014\\\\=1079

Thanks

3 0
3 years ago
What is the difference x + 5/ x + 2 - x + 1 /x^2 + 2x
xxTIMURxx [149]

2x^3 + 2x^2 + 5x + 1/ x^2

3 0
3 years ago
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Find the sale price of the item. Round to two decimal places if necessary. Original price: $71.00 Markdown: 33% The sale price i
soldi70 [24.7K]

Answer:

8. $35.10

9. $59.63

10. $13.43

11. $70

12. Take the percent you pay (100-the discount) as a decimal and multiply it by the regular price.

Step-by-step explanation:

For finding the price we pay during a sale, we focus on the percent we pay. If 22% off is the sale, then we spend 78% or 100-22-78. We use this percent byb  multiplying the price with a decimal. We convert percents into decimals by dividing the percent number by 100. For example, 78% divided by 100 becomes 0.78.

8. Percent off is 22%. We pay 78%=0.78.

45(0.78)=$35.10

9. Percent off is 33%. We pay 67%=0.67.

89(0.67)=$59.63

10. Percent off is 44%. We pay 56%=0.56.

23.99(0.56)=$13.43

11. Percent off is 75%. We pay 25%=0.25.

279.99(0.25)=$70

12. See explanation above.

3 0
3 years ago
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Is (2,3) (4,5) (2,8) a function?
snow_lady [41]

Answer:

No

Step-by-step explanation:

if the X number ever repeats, then its never a function

4 0
3 years ago
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40 pints of juice in 2 containers​
mezya [45]

Answer:

Ok

Step-by-step explanation:

5 0
3 years ago
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