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Ipatiy [6.2K]
3 years ago
7

What is the area and circumference of a circle with the diameter of 72m

Mathematics
1 answer:
serious [3.7K]3 years ago
4 0

Answer:

Area: 4071.5m²

Circumference: 226.19m

plz mark me as brainliest :)

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Jason took his girlfriend to dinner at a nice restaurant. the bill was $84.20 and he needs to give a 15% tip. How much tip shoul
marysya [2.9K]

Answer:

Tip Total: $ 12.63

Tip Each Person: $ 6.32

Total (Bill + Tip): $ 96.83

Total Each Person: $ 48.42

Step-by-step explanation:

3 0
3 years ago
2 Points
masya89 [10]
The answer is 120. Because inscribed angle is Half of the arc measure. Double 60 and we get 120.
6 0
3 years ago
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If a = 7 and b = 11, what is the measure of ∠B? (round to the nearest tenth of a degree) A) 32.5° B) 39.2° C) 50.5° D) 57.5°
Ilia_Sergeevich [38]

Answer:

D) 57.5°

Step-by-step explanation:

As the question is not complete. So, let's suppose it is a right angle triangle then, we can apply Pythagoras theorem to calculate the hypotenuse or the third side.

Pythagoras Theorem = c^{2} = a^{2} + b^{2}

a = 7 and b = 11

a^{2} = 49

b^{2} = 121

Plugging in the values, we will get:

c^{2} = 49 + 121

c^{2} = 170

c = \sqrt{170}

To calculate the unknown angle B, we can use law of sine.

Law of sine = \frac{a}{sinA} = \frac{b}{sinB} = \frac{c}{sinC}

So,

\frac{c}{sinC} = \frac{b}{sinB}

\frac{\sqrt{170} }{sin90} =  \frac{11}{sinB}

Sin90 = 1

sinB = \frac{11}{\sqrt{170} }

B = sin^{-1} (\frac{11}{\sqrt{170} })

B = 57.5°

8 0
3 years ago
Is this statement always, sometimes, or never true.
cestrela7 [59]

Answer:

Never true

Step-by-step explanation:

Linear angles are adjacent angles whose sum is 180

3 0
3 years ago
642 x 115 worked out ?
lys-0071 [83]

Answer:

642x115=73830

Step-by-step explanation:

does that help?

8 0
3 years ago
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