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3 years ago

A random variable X is exponentially distributed with an expected value of 68.

Mathematics

1 answer:

VLD [36.1K]3 years ago

6 0

It is b because you round to the nearest 100 and I got it right on the quiz

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You are standing on a small fire tower 50 feet from a tree. You notice a squirrel in the tree. You measure the angle of depressi

irina [24]

Answer:

44.81 feet

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

In the right triangle ACD

Find the length side AC (height of the small fire tower)

$tan(52^o)=\frac{AC}{50}$ ---> by TOA (opposite side divided by the adjacent side)

Solve for AC

$AC=tan(52^o){50}$

$AC=64\ ft$

step 2

In the right triangle ABE

Find the length side AB

$tan(21^o)=\frac{AB}{50}$ ---> by TOA (opposite side divided by the adjacent side)

solve for AB

$AB=tan(21^o){50}$

$AB=19.19\ ft$

step 3

How many feet off the ground is the squirrel?

Subtract the length side segment AB from the length side segment AC

$64-19.19=44.81\ ft$

5 0

2 years ago

Gil is reading a book that has 276 pages.he already read some of it last week. He plans to read 20 pages tomorrow. By then he wi

Naya [18.7K]

Last week Gill read 164 of the 276 pages of the book.
hope this helped :)

7 0

3 years ago

I need to know the answer

quester [9]

What are your choices?

4 0

3 years ago

Make a frequency table to show the following test times (in minutes) for a reading test. 81, 63, 61, 58, 72, 70, 79, 68, 82, 64,

kodGreya [7K]

Sorry about my handwriting. this is what your graph should look like

3 0

3 years ago

Carry out the following division.

kifflom [539]

Answer:

1: 8a²

2: 9a²b²c²

Step-by-step explanation:

1: 48a³ ÷ 6a

48÷6 = 8

8a²

2: 72a³b⁴c⁵ ÷ 8ab²c³

72÷ 8 =9

9a²b²c²

4 0

2 years ago

Read 2 more answers