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Lorico [155]
3 years ago
11

In which sampling method is the sample selected from the population according to a specific item or time interval?

Mathematics
1 answer:
lukranit [14]3 years ago
3 0
I think the answer is C
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O 1/34<br> O 34<br> 0-34<br> O 1/12
padilas [110]

Step-by-step explanation:

1/34 i thinkk im not sure !

3 0
3 years ago
Mai is filling her fish tank. Water flows into the tank at a constant rate. Complete the table and answer the question below.
kvasek [131]

Answer:

r = 1.6

Step-by-step explanation:

Given

x   -----   y

0.5. --- 0.8

1. --- 1.6

3.--- 4.8

25. --- 40

Required

Determine the constant of proportionality

This can be calculated using the following formula:

y = rx ; Where r is the constant of proportionality;

Solve for r

r = \frac{y}{x}

When x = 0.5; y = 0.8

r = \frac{0.8}{0.5}

r = 1.6

When x =  1; y =1.6

r = \frac{1.6}{1}

r = 1.6

When x =  3; y = 4.8

r = \frac{4.8}{3}

r = 1.6

When x =  25; y = 40

r = \frac{40}{25}

r = 1.6

Notice that the value of r is constant throughout;

Hence:

r = 1.6

5 0
3 years ago
Tom drove to visit a museum in Chicago. He traveled at a constant rate of 50 miles per hour for 2 hours. Then he traveled at a c
Dmitry [639]

Answer:

165

Step-by-step explanation:

First, we multiply 50 and 2 to find out how much they traveled first, which is 100. And then, multiply 65 and 1 to get 65 for the second part. Add then, to get 165. Hope this helps!

5 0
2 years ago
Read 2 more answers
Alexis has a savings account that earns 2.1% interest compounded daily. If she opened the account 17 years ago with a deposit of
sergejj [24]

Compound Interest Formula:  A = P(1 + r/n)^(n·t)

A = final amount                  r = rate, as a decimal (.021)                      t = number of years (17)

P = initial amount (2914.72)    n = number of times compounded per year (365)

A  =  2914.72(1 + .021/365)^(365·17)  =  $4165.20

Interest earned:  $4165.20 - $2914.72  =  $1250.48           <-----  Answer

You might want to recalculate this, attempting to handle leap years, by replacing the number of times compounded per year with 365.25 and see if that has an effect

5 0
3 years ago
Mark has a postcard with a width of 3 1/3 inches. He wants to enlarge the postcard by a factor of 9 1/2 to make a poster. Which
Anna11 [10]

Answer:

C. The poster will have an width of 31 2/3 inches.

Step-by-step explanation:

3 1/3*9 1/2= 31 2/3 inches

8 0
3 years ago
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