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2 years ago

PLEASE ANSWER ASAP! What is the radius of a sphere if its surface area is 314 square inches? (Use 3.14 for π.)

Mathematics

1 answer:

lina2011 [118]2 years ago

3 0

surface area of a sphere formula: A=4πr^2

314=4 x 3.14 x r^2 => r=5

It's B

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Need answer fast with all the steps included please

wel

Answer:

6n²√3

Step-by-step explanation:

2√3n•√9n³

The above expression can be simplified as follow:

Recall

√9 = 3

2√3n•√9n³ = 2√3n × 3√n³

Recall

m√a × n√b = mn√(a × b)

Thus,

2√3n × 3√n³ = (2×3) √(3n × n³)

2√3n × 3√n³ = 6√3n⁴

Recall:

√aᵇ = (aᵇ)¹/² = aᵇ/²

√n⁴ = n⁴/²

√n⁴ = n²

Thus,

6√3n⁴ = 6n²√3

Therefore,

2√3n•√9n³ = 6n²√3

4 0

2 years ago

Π (pi) is an unending decimal. Find the Circumference of the circle below using exact π (pi).

dalvyx [7]

Step-by-step explanation:

Given radius, r = 5,

Circumference of Circle, C

$= 2\pi \: r \\ = 2\pi(5) \\ = 10\pi \: units$

7 0

2 years ago

Read 2 more answers

Joshua quick made a deposit to his checking and recieved $50 in cash. His deposit slip shows a total deposit of $90. If Joshua d

g100num [7]

Answer:

$55 beacause he deposit 50 and 90

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2 years ago

Irina-Kira [14]

I'm not 100% but I'm pretty sure the answer is True

5 0

2 years ago

Linear equation: -1

hoa [83]

Answer:

see below

Step-by-step explanation:

-1/2 * (6x + 10) = 13

Distribute -1/2

–3x – 5 = 13

Add 5 to each side

-3x-5+5 = 13+5

–3x = 18

Divide each side by -3

-3x/-3 = 18/-3

x = -6

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2 years ago