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Juliette [100K]
3 years ago
6

HURRY PLEASE

Mathematics
1 answer:
Strike441 [17]3 years ago
4 0

Answer:

n = ≥500

Step-by-step explanation:

They must be able to swim 500 yards or more.

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What is the length of chord FL in A below?
telo118 [61]

Answer:

D.

Step-by-step explanation:

If you would rotate RN until R meets L it would exactly overlap with FL. So RN=FL.

4 0
3 years ago
Read 2 more answers
Jane is trying to estimate the average electric bill amount of people who live in Las Cruces in summer time. She randomly select
Lina20 [59]

Answer:

The estimated average electric cost amount of all residents in Las Cruces = 182.9

Step-by-step explanation:

The bill amounts from the electric company for the month of July for 10 randomly selected houses from the map was obtained to be

135 265 215 103 156 203 125 156 230 241

Using the Central Limit theory, the mean of a sample extracted randomly from an independent distribution is approximately equal to the population mean of the independent distribution.

This means that the sample mean of a random sample extracted from the population is a good estimate of the population mean.

Sample mean ≈ Population mean

μₓ = μ

Mean = = (Σx)/N

The mean is the sum of variables divided by the number of variables

x = each variable

N = Sample size = 10

Σx = (135+265+215+103+156+203+125+156+230+241) = 1,829

Sample mean = (1,829/10) = 182.9

Population mean ≈ sample mean

Population mean ≈ 182.9

Hope this Helps!!!

8 0
3 years ago
What is the length of CD ? In this diagram ABC EDC ?<br> Please help !!!!
n200080 [17]
Answer:
CD = x = 4 units

Explanation:
We are given that the two triangles are similar. This means that we can set the similarity proportionality as follows:
\frac{BC}{CD} =  \frac{CA}{CE} =  \frac{AB}{ED}

W e have:
BC = 20 - x
AC = 20
CD = x
CE = 5

Substitute in the above proportionality and solve for x as follows:
\frac{20-x}{x} =  \frac{20}{5} = 4

4x = 20 - x
5x = 20
x = 4

Based on he above:
CD = 4 units
BC = 20 - x = 20 - 4 = 16 units

Hope this helps :)
5 0
3 years ago
Read 2 more answers
A circle has a diameter of 18 mm. What is its circumference?
Sloan [31]

Answer:

56.52mm

Step-by-step explanation:

4 0
2 years ago
HELP!!!<br> 50 Points!!!!!
andreyandreev [35.5K]

Answer:

i think the first and last one.

Step-by-step explanation:

5 0
2 years ago
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