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Lisa [10]
3 years ago
9

The distribution of waiting time for an elevator in an office building is shown above. What is the probability you’ll have to sp

end between 30 and 70 seconds waiting for the elevator?
Mathematics
1 answer:
Oxana [17]3 years ago
7 0

Answer:

I don't think this question can be answered without more info

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Ben made a model (shown below) of the square pyramid he plans to build when he grows up.
elena-s [515]

Answer:

336 m^2

Step-by-step explanation:

The surface area of a square pyramid is the sum of the area of the squared base + 4 times the area of each triangular face, therefore:

A=A_b + 4A_t

where:

A_b=L^2 is the area of the base, where

L is the length of the base

A_t=\frac{1}{2}Lh is the area of each triangular face, where

h is the height of the face

Substituting,

A=L^2+2Lh

For the model in this problem,

L = 12

h = 8

Therefore, the surface area here is:

A=12^2 +2(12)(8)=336

4 0
3 years ago
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Answer:

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3 years ago
Kyle is paying a game of cards.
g100num [7]

Answer:

1/221=0.0045

Step-by-step explanation:

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Help I’ll give Brainly est
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Answer:

It's probably D or C, as you clicked.

Step-by-step explanation:

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Claim: Fewer than 93​% of adults have a cell phone. In a reputable poll of 1059 ​adults, 88​% said that they have a cell phone.
kirill [66]
The answer would be = -16.60
Details in image

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2 years ago
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