2 years ago

A bag contains 8 blue marbles, 7 green marbles, and 5 red marbles.

Mathematics

1 answer:

Alina [70]2 years ago

3 0

the probability is 5 out of 20

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Trig: A sector of a circle has area 25 cm2 and centralangle

Alchen [17]

Answer: Radius = 10 cm and Arc length = 5 cm

Step-by-step explanation:

The area of a sector with radius r and central angle $\theta$ (In radian) is given by :-

$A=\dfrac{1}{2}r^2\theta$

Given : A sector of a circle has area $25 cm^2$ and central angle 0.5 radians.

Let r be the radius , then we have

$25=\dfrac{1}{2}r^2(0.5)\\\\\Rightarrow\ r^2=\dfrac{2\times25}{0.5}\\\\\Rightarrow\ r^2=\dfrac{50}{0.5}=100\\\\\Rightarrow\ r=\sqrt{100}=10\ cm$

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$l=r\theta=10\times0.5=5\ cm$

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2 years ago

For the first year of a new job, you make P70,000. You get an annual raise each year of 3%. Find out total amount of money you w

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P371,639.507

Step-by-step explanation:

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Third year: 74,263

Fourth year: 76,490.89

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