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Simora [160]
3 years ago
8

Dr black is standing 13 feet from a streetlamp. The lamp is making his shadow 9 feet long. He estimates that the angle of elevat

ion from the tip of his shadow to the top of the streetlamp is 50° to the nearest foot the streetlamp is about
Mathematics
1 answer:
morpeh [17]3 years ago
3 0
So, you would 13 + 9 = which is 22 feet and since the angle is 50 degrees, you would multiply 22 x tan(50) to find the height of the streetlamp:22 x tan(50) = 26.21. So, the streetlamp is about 26 feet tall!Hope this helps!
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Jason and Yolanda both drew a simple random sample from a non-normally distributed population of 25,000. Jason’s sample consiste
UkoKoshka [18]

Answer:  Last Option is correct.

Step-by-step explanation:

Since we have given that

Total number of population = 25000

Percent of sample of Jason = 0.24%

Percent of sample of Yolanda's = 0.32%

So, Number of population according to Jason's sample is given by

\frac{0.24}{100}\times 25000\\\\=0.0024\times 25000\\\\=60

Number of population according to Yolanda's sample is given by

\frac{0.32}{100}\times 25000\\\\=0.0032\times 25000\\\\=80

Both the sample can be used to make inferences about the population

Hence, Last Option is correct.

3 0
3 years ago
Read 2 more answers
Solve the following equation. Then place the correct number in the box provided. 3x + 1 + 5x = 7 +15 + 7x find X
KengaRu [80]
3x + 1 + 5x = 7 + 15 + 7x
8x + 1 = 22 + 7x
x = 21
7 0
3 years ago
Which speed is the fastest?
saveliy_v [14]
A. 18 feet in 20 minutes.
6 0
3 years ago
The mean number of catfish in all 6 samples is approximately 5.7. If 200 fish are in the pond, which proportion can be used to p
kvasek [131]

Answer:

Using the proportion given, there will be 57 catfish in the pond.

The proportion given to us is

5.7/20 = x/200

Cross multiply:

5.7*200 = 20*x

1140 = 20x

Divide both sides by 20:

1140/20 = 20x/20

57 = x

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
Solve the literal equation for c 4p+9c=p
zimovet [89]

4p+9c=p

move 4p to the other side

sign changes from +4p to -4p

4p-4p+9c=p-4p

9c= p-4p

9c= -3p

divide both sides by 9 to get c by itself

9c/9= -3p/9

c= -3p/9

reduce by dividing by 3

-3p/3= -p

9/3= 3

Answer:

c= -p/3

5 0
3 years ago
Read 2 more answers
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