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2 years ago

There are 9 marbles in a bag, 3 of those marbles are red. what is the probability of picking a red marble randomly from the bag?

Mathematics

1 answer:

boyakko [2]2 years ago

7 0

Answer:

1/3 because there's more of the other marbles than red

Step-by-step explanation:

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13. On a snow day, the temperature at 8 AM was 2°F. Later in the day the temperature rose 6º. What was the resulting temperature

geniusboy [140]

The resulting temperature was 8°F.

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2 years ago

PLEASE HELP WILL MARK BRAINLIEST TO BEST ANSWER

sergeinik [125]

Answer:

option D

${10x}^{2} + 3x - 8$

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3 years ago

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1. The science club constructed a pyramid with a square base out of paper clips. The height of the pyramid is 2.5 feet. One side

elena-14-01-66 [18.8K]

Answer:

Part 1) The slant height of the pyramid is $2.80\ ft$

Part 2) The length of the third side of the window is $20.78\ in$

Part 3) The building's slant height is $53.85\ ft$

Step-by-step explanation:

Part 1) we know that

To find out the slant height of the pyramid, apply the Pythagorean Theorem

Let

l ----> the slant height of the pyramid

h ---> the height of the pyramid

b ---> the length side of the square base

$l^2=h^2+(b/2)^2$

we have

$h=2.5\ ft\\b=2.5\ ft$

substitute the given values

$l^2=2.5^2+(2.5/2)^2$

$l^2=2.5^2+(1.25)^2$

$l^2=7.8125$

$l=2.80\ ft$

Part 2) Let

c ----> the hypotenuse of a right triangle (the greater side)

a ---> the measure of one leg of the right triangle

b ---> the measure of the other leg of the right triangle

Applying the Pythagorean Theorem

$c^2=a^2+b^2$

we have

$c=24\ in\\a=12\ in$

substitute the given values and solve for b

$24^2=12^2+b^2$

$b^2=24^2-12^2$

$b^2=432$

$b=20.78\ in$

Part 3) Let

l ----> the building's slant height

h ---> the height of the building

r ---> the radius of the base of the building

Applying the Pythagorean Theorem

$l^2=h^2+r^2$

we have

$h=50\ ft\\r=20\ ft$

substitute the given values

$l^2=50^2+20^2$

$l^2=2,900$

$l=53.85\ ft$

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3 years ago

W<br> at as the exact solutions of 2 = 5x + 22 (1 point)

Scrat [10]

X= -4

Your answer ^^^^

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3 years ago

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3. PENTAGON The Pentagon is a five-sided

Sergeu [11.5K]

The answer is 4605 feet since 921 • 5 is 4605. There are 5 sides and each side 921 so 921 • 5 = 4605 would be the answer

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3 years ago