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IrinaK [193]
3 years ago
5

A bag contains 5 blue,8 red,7 green marbles.what is the probability of drawing a blue marble at random

Mathematics
1 answer:
scoray [572]3 years ago
4 0
<span>the probability of drawing a blue marble at random is 5/20 = 1/4

answer
1/4
hope it helps</span>
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Ruby is visiting a wildlife center to gather information for her term paper. The center has a circular pond with a diameter of 2
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a rectangular pyramid has a volume of 190 cubic centimeters. Find two possible sets of measurements for the base area and height
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<h3>One possible set for the base area and height of the pyramid is 570 cm and 1 cm respectively</h3><h3>Other possible set for the base area and height of the pyramid is 285 cm and 2 cm respectively</h3>

<em><u>Solution:</u></em>

<em><u>The volume of rectangular pyramid is given as:</u></em>

Volume = \frac{1}{3} \times base\ area \times height

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<em><u>Rectangular pyramid has a volume of 190 cubic centimeters</u></em>

<em><u></u></em>190= \frac{1}{3} \times base\ area \times height<em><u></u></em>

<em><u>Substitute, base area = 570 and height = 1</u></em>

Then we get,

190 = \frac{1}{3} \times 570 \times 1\\\\190 = 190

Thus one possible set for the base area and height of the pyramid is 570 cm and 1 cm respectively

<em><u>Substitute, base area = 285 and height = 2</u></em>

190 = \frac{1}{3} \times 285 \times 2\\\\190 = \frac{1}{3} \times 570\\\\190 = 190

Thus other possible set for the base area and height of the pyramid is 285 cm and 2 cm respectively

6 0
3 years ago
Lines a and b are parallel.
Andreyy89

Answer:

∠s = 22°

Step-by-step explanation:

∠t = 158° ( corresponding angles )

∠s = 180° - ∠t ( straight angle )

    = 180° - 158° = 22°

 

7 0
3 years ago
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