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serious [3.7K]
3 years ago
14

Make the range of the function f(x) =x^2+2x-1

Mathematics
1 answer:
Rashid [163]3 years ago
6 0
The range is Range:
[-2less than and equal to y]
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Find the sum of the geometric series.
sveticcg [70]

Answer:

40/3  option B

Step-by-step explanation:

20-10+5-5/2+ ...

We need to find the sum of infinite geometric series

S_n = \frac{a}{1-r}

a is the first term (20)

r is the common ratio

To find common ratio we divide second term by first term

r=\frac{-10}{20} = -\frac{1}{2}

now we plug in the values

S_n = \frac{20}{1-(-\frac{1}{2}}

S_n = \frac{20}{1+\frac{1}{2}}

S_n = \frac{20}{\frac{3}{2}}

S_n = 20 * \frac{2}{3}

sum = 40/3

7 0
4 years ago
When c=3 and d=7<br> 21c + 2d - |-11|d
NeX [460]

Answer:

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Step-by-step explanation:

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8 0
4 years ago
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Sedaia [141]
65% of 180=180*.65=117
4 0
3 years ago
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What is the slip of the line 4x-2y=5
Eddi Din [679]

If you mean slope.. the equation to set up is y=mx+b. Using this, and finding out the answer m=2.

Hope this helped!

4 0
4 years ago
Plz solve this. with expalnations 20 points​
yanalaym [24]

Step-by-step explanation:

length of half circumference EFG=15

BC=8

the perimeter=57

the are=35square

4 0
3 years ago
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