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LenKa [72]
3 years ago
5

Find the surface area of a sphere with radius, r= 12 in.

Mathematics
1 answer:
zvonat [6]3 years ago
8 0

1809.56

just plug it in the surface area formula of a sphere and do the math

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In XYZ, mX=90 and mY=30.In TUV,mU= 30 and mV=60. Which is true about the two triangles? XYZ=TUV, XYZ= VUT,No congruency statemen
Flauer [41]

Answer:

No congruency statement can be made because the side length are unknown.

Step-by-step explanation:

The sum of the measures of all interior angles in a triangle is always 180°.

In triangle XYZ,

m\angle X=90^{\circ}\\ \\m\angle Y=30^{\circ},

then

m\angle X+m\angle Y+m\angle Z=180^{\circ}\Rightarrow m\angle Z=180^{\circ}-90^{\circ}-30^{\circ}=60^{\circ}

In triangle TUV,

m\angle U=30^{\circ}\\\\m\angle V=60^{\circ},

then

m\angle T+m\angle U+m\angle V=180^{\circ}\Rightarrow m\angle T=180^{\circ}-30^{\circ}-60^{\circ}=90^{\circ}

We have two triangles with congruent angles but we have no information about side lengths. Therefore, can not be made because the side length are unknown. Correct option is last option.

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3 years ago
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Marianna [84]

Answer:

4

Step-by-step explanation:

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2 years ago
Which statements are correct? Check all that apply.
Vadim26 [7]

Answer:

Arc FE is a minor arc.

Step-by-step explanation:

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Prove: An odd number squared is an odd number. = (2n + 1)2 ​
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Answer:

{(2n + 1)}^{2}  = 4 {n}^{2}  + 4n + 1 = 2(2 {n}^{2}  + 2n) + 1

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Mathematical question, please see the picture. Thanks
KengaRu [80]

Answer:

B) $23.45

C) $157.50

A + B + C = $330.95

Step-by-step explanation:

$6.70 × 20 = $137 17.5% of $137 = $23.45

45c × 350 = $157.5

$150 + $23.45 + $157.50 = 330.95

6 0
2 years ago
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