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mrs_skeptik [129]
2 years ago
10

What is the y-intercept of the line given by the following equation below?

Mathematics
1 answer:
Simora [160]2 years ago
7 0

Answer:

(0,-121/7)

Step-by-step explanation:

11x-7y=121

11(0)-7y=121

-7y=121

y=121÷-7

0'-121/7

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20 POINTS AND BRAINLIEST FOR CORRECT ANSWER! A cone with height h and radius r has volume V = 13πr2h. If a certain cone with a h
lozanna [386]

Answer:

If a certain cone with a height of 9 inches has volume V = 3πx2 + 42πx + 147π, what is the cone’s radius r in terms of x?

Step-by-step explanation:

V = 3πx2 + 42πx + 147π

V=3π(x2 + 14x +49)

9.42(x2 + 14x +49)

9.42(x2 + 14x +14)  -14 + 49= 0

9.42(x + 7)^2 + 35= 0

9.42(9.42(x + 7)^2 = - 35)9.42

(x + 7)^2 = - 35/9.42)

√(x + 7)^2=√- 35/9.42

x + 7 = - 1.927

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x= - 8.927

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V=750.69 - 1177.29 + 461.58

<u>V=34.98</u>

h= 9 inches

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34.98 = 13(3.14) (r^2) (h)

34.98 = 40.82 (r^2) 9

34.98 = 367.38 r^2

34.98/ 367.38 = 367.38 r^2/ 367.38

0.095=  r^2  

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3 years ago
Which statement is true for the scatter plot?
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A.
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Oduvanchick [21]
18. 105=2x-11 so 105+105=210 and all four angels equal 360 so 360-210=150 so 150/2=75

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Yakvenalex [24]

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Step-by-step explanation:

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