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Scrat [10]
3 years ago
11

A sphere has a diameter of 8 feet.What is its surface area in square inches?Round your answer to the nearest hundredth.Use 3.14

to approximate pi.
Mathematics
1 answer:
Scilla [17]3 years ago
8 0
The surface area of the sphere in square inches is 28,952.92 in^2 rounded to the nearest hundredth.
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The equation $(x - 7)^2 + (y + 13)^2 = 12$ represents a circle. What is its radius?
miskamm [114]

Answer:

<h3>2√3</h3>

Step-by-step explanation:

The standard equation of a circle is expressed as;

(x-a)²+(y-b)² = r² where;

(a, b) is the center of the circle

r is the radius of the circle

Given the equation (x - 7)^2 + (y + 13)^2 = 12

On comparing;

r² = 12

Take the square root of both sides

√r² = √12

r = √12

r = √4*3

r = 2√3

Hence the radius of the circle is 2√3

7 0
3 years ago
In which situation is the distance traveled proportional to time? A car moving in stop-and-go traffic A person biking on a trail
Sindrei [870]
For this case, what you must do is to see in which scenario the speed of keeping constant during a certain time.
 "A person biking on a trail at 1212 miles per hour for 2020 minutes"
 We observe that the distance in this case is proportional to the time and the constant of proportionality is the speed.
 In other words:
 d = v * t
 Answer:
 the distance traveled is proportional to time in:
 "A person biking on a trail at 1212 miles per hour for 2020 minutes"
5 0
3 years ago
A = {1, 3, 5, 7, 9}
kondor19780726 [428]
The \cap symbol means intersection, so everything that is in both sets, and the \cup symbol means union, so the two sets combined.

B \cup C = \{1, 2, 4, 5, 6, 7, 8, 9, 10\} = S
A \cap S= \{1, 5, 7, 9\}

So the answer is A.

7 0
2 years ago
The sum of all integers between 3 and 11
Lena [83]

Answer:

49

Step-by-step explanation:

You would add 4+5+6+7+8+9+10 to get the sum of 49.

6 0
3 years ago
Read 2 more answers
The weight of an elephant is 10 to the third times the weight of a cat. If the elephant weighs 14,000 pounds how many pounds doe
Brut [27]
Cat weight = 14,000 / 10^3
= 14,000 / 10000
= 14 pounds
6 0
3 years ago
Read 2 more answers
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