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Stella [2.4K]
3 years ago
11

PLSSS HELP Due in 5 mins!!!

Mathematics
1 answer:
zepelin [54]3 years ago
8 0

Answer:

a 15

b 42

c 12

trust me

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I need help with this math problem plz help and plz explain your answer​
IceJOKER [234]

Answer:

34.04 cm²

Step-by-step explanation:

Formula for a trapezoid:

a + b ÷ 2 × height

Substitute the values:

11.7 + 3.1 = 14.8

14.8 ÷ 2 = 7.4

7.4 × 4.6 = 34.04

The answer is 34.04 cm²

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3 years ago
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A+b+c=m,a2+b2+c2=n,a3+b3=p3. If c=0 then prove that m3+2p3=3mn
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Answer:

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4 0
3 years ago
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The surface area of a spherical lampshade is 57.76
Kisachek [45]

We are given area of the spherical lampshade =  57.76 \pi square inches.

We know formula of area of a spherical shape:

A = 4\pi r^2

Plugging area A= 57.76 π in formula, we get

57.76\pi= 4\pi r^2

Dividing both sides by 4π, we get

\frac{57.76\pi}{4\pi} = \frac{4\pi r^2}{4\pi}

14.44 = r^2

Taking square root on both sides, we get

\sqrt{14.44} = \sqrt{r^2}

r =3.8.

<h3>Therefore, the radius of the lampshade is 3.8 inches.</h3>
7 0
4 years ago
What is the measure of angle RST? Help!!
erik [133]

Answer:

62

Step-by-step explanation:

Angle Formed by Two Chords = 1/2(sum of Intercepted Arcs)

RST = 1/2 ( 47+77)

       = 1/2 (124)

       = 62

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3 years ago
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