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Marina CMI [18]
3 years ago
6

A sphere has a diameter of 14 ft. What is its surface​ area? The surface area of the sphere is ft squared. ​(Type an exact answe

r in terms of pi​.)
Mathematics
1 answer:
-BARSIC- [3]3 years ago
4 0

Answer:

The Formula is 4 x Pi x Radius Squared . surface area of sphere = 4 x pi x radius x radius where "x" indicates multiplication and pi = approximately 3.141592654 4 * pi * r^2

Step-by-step explanation:

You might be interested in
If 2.29 x 19.79 = 45.3191, then without actual multiplication the value of 0.0229 x 1979 is?
Mrrafil [7]

Answer:

45.3191

Step-by-step explanation:

0.0229 is 100 times smaller that 2.29 but 1979 is 100 times greater than 19.79. Since they cancel each other out, the answer remains the same.

8 0
3 years ago
which of the following side lengths can form a triangle. A.10,16,&30 B.11,14,&26. C.41,51,&61. D.100,200,&600.
bulgar [2K]
C is the correct answer. :)
3 0
3 years ago
Is 5/18 a rational number ?
pentagon [3]

Answer:

5/18 is a rational number because a rational number is any integer,fraction terminating decimal,or repeating decimal.

4 0
2 years ago
Environmentalists concerned about the impact of high-frequency radio transmissions on birds found that there was no evidence of
babunello [35]

Answer:

No, we cannot conclude anything about 0.10

Yes, they have made the same decision.

Step-by-step explanation:

Consider the provided information.

Part (A)

They based this conclusion on a test using α = 0.05. Would they have made the same decision at α = 0.10

A significance level of 0.05 indicates a 5% risk of concluding that a difference exists

From the normal table the critical value is Z(0.05) = 1.645 and we accept null hypothesis.

If α = 0.1, the critical value is Z(0.1)=1.28

1.28 is less than 1.645.

Therefore, we cannot conclude anything about 0.10

Part (B)

α = 0.01, the critical value is Z(0.01)=2.33

The critical value of α = 0.05 is 1.645 which is less than 2.33,

So we would again reject the null hypothesis.

Hence, they have made the same decision.

6 0
3 years ago
A triangle has side lengths of 10 inches, 24 inches, and 26 inches. is this a right triangle?
MrMuchimi
To check it we can use Pythagorean theorem.
a^2+b^2=c^2, where c is the longest side.
Lets check it
Assume that a=10 and b= 24
10^2+24^2=100+576=676
Now lets compare with c^2=676
Its equal, so its right triangle.
7 0
3 years ago
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