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3 years ago

I REALLY NEED HELP IF NOT I'M GOING TO FAIL

Mathematics

1 answer:

Sergeeva-Olga [200]3 years ago

3 0

Answer:

1. x > 9

2. n < 5

3. b > 2

4. p < 4

5. p < -2

6. m > 0

Step-by-step explanation:

x - 2 - 2 > 5

x - 4 > 5

x > 5 + 4

x > 9

5 + n < 2 x 5

n < 10 - 5

n < 5

50b > 100

b > 100 : 50

b > 2

-5 + p + 2 < 1

p < 1 + 3

p < 4

p + 6 + 8 < 12

p + 14 < 12

p < 12 - 14

p < -2

80m - 64 - 2 > -66

80m > -66 + 66

m > 0:80

m > 0

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3 years ago

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Phoenix [80]

Answer

a. The volume is multiplied by 4

b. The volume is doubled

Explanation

a. The volume of a cone with radius r and height h is $\pi r^2 h/3$ . If the radius is doubled, the new volume will be $\pi (2r)^2h/3$ , which is equal to $4\pi r^2h/3$ . This means that the volume is multiplied by 4.

b. The volume of a cone with radius r and height h is $\pi r^2 h/3$ . If the height is doubled, the new volume will be $\pi r^2(2h)/3$ , which is equal to $2\pi r^2 h/3$ . This means that the volume is multiplied by 2.