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2 years ago

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Joseph, Pedro, Samuel, and David leave their backpacks by the classroom door at the start of class. When the fire alarm rings th

ey rush to leave, each randomly grabbing a backpack on the way out. What is the probability that each boy takes a backpack that is not his own?

1 answer:

aev [14]2 years ago

3 0

$\huge\pink{Answer}$

3/4 is the probability

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postnew [5]

You find the volume of this figure by multiplying length*width*hight. I hope that this helps you out!

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3 years ago

How do you solve chords and arcs in geometry?

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3 years ago

Semielliptical Arch Bridge An arch for a bridge over a highway is in the form of half an ellipse. The top of the arch is 20 feet

photoshop1234 [79]

Answer:

the span of the bridge is 73.7 feet

Step-by-step explanation:

The equation of an ellipse with a vertical major axis(i.e major axis parallel to y axis) is given by:

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where (h,k) are the coordinates of the center of the ellipse, a is the length of the major axis and b is the length of the minor axis

For this problem, the center of the ellipse (h,k) = (0,0)

Therefore:

$\frac{(x)^{2} }{b^{2} } + \frac{(y)^{2} }{a^{2} }= 1$

The top of the arch is 20 feet above the ground level (the major axis), therefore a=20

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$\frac{28^{2} }{b^{2} } + 0.4225= 1$

$\frac{784 }{b^{2} } = 0.5775$

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3 years ago

In the figure on the right, Triangle EFG is congruent to Triangle LMN. Find the value of x. Then describe the Transformations th

Reptile [31]

Answer:

Step-by-step explanation:

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Therefore, MN = FG { corresponding part of congruence triangle}

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3 years ago

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Rainbow [258]

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3 years ago