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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?

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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8^2 x (2+6) / 4<br>solve

Softa [21]

Answer:

$8^2\times \frac{\left(2+6\right)}{4}$

$\frac{\left(2+6\right)}{4}$ = 8/4 = 2

$8^2 \times 2$ =

64 x 2 =

128.

3 0

2 years ago

How would I do this problem?

kenny6666 [7]

If it's a geometric sequence then:

$a_1=27;\ a_2=27\\\\r=\dfrac{a_2}{a_1}\to r=\dfrac{27}{36}=\dfrac{3}{4}=0.75\\\\a_{n+1}=a_nr\\\\a_3=27\cdot0.75=20.25\ CORRECT$

We calculate the fourth and fifth term of the sequence:

$a_4=a_3r\to a_4=20.25\cdot0.75=15.1875\\\\a_5=a_4r\to a_5=15.1875\cdot0.75=11.390625$

Answer:

In year 4 15.1875 animals.

In year 5 11.390625 animals.

7 0

3 years ago

When c=3 and d=7<br> 21c + 2d - |-11|d

NeX [460]

Answer:

0

Step-by-step explanation:

21(3) +2(7) - 11(7) because the absolute value of -11 is 11

63+14-77

=0

8 0

3 years ago

13. Use a net to find the surface area of the prism.

Viefleur [7K]

Answer:

516 inches

Step-by-step explanation:

2(8(6)) + 2(15(6)) + 2(15(8))

96 + 180 + 240 = 516in

The answer is 516in

*Please mark me the brainliest. Thanks

4 0

3 years ago

There are five houses on Philips Road that each use, on average, between 1.61 units and 1.74 units of electricity for 1 to 3 hou

Karo-lina-s [1.5K]

Answer:

C is the correct answer is yes

Step-by-step explanation:

I'm doing this assignment and I got it correct!

3 0

3 years ago