3 years ago

If a population consists of 540,000 people and a census is taken, how many

Mathematics

1 answer:

dlinn [17]3 years ago

8 0

The answer is c. 540,000

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Find f(-2) for f(x) = 3x2^x

Tanzania [10]

2^-2
Is 1/2^2=1/4
3 x 1/4 is 3/4
The answer is 3/4 I think

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3 years ago

What is the sum of the two expressions -2.9a+6.8 and 4.4a-7.3

Lady bird [3.3K]

Answer:

1.5a - 0.5

Step-by-step explanation:

Add like terms

4.4 - 2.9 = 1.5

7.3 - 6.8 = 0.5

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2 years ago

How many 8th graders would have to stand in the stack to reach the moon?

slamgirl [31]

You would have to know the height of the 8th graders

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2 years ago

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3 years ago

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Felix scored 52 and 64 on his first two test in Sociology 212. What must he get on the third test to get an average of the three

Pie

Answer:

Felix's third test score must be greater than 94

Step-by-step explanation:

Felix scores on Sociology 212 tests:

1st test - 52

2nd test - 64

3rd test - x

Find the average of Felix's scores:

$\text{Average}=\dfrac{\text{The sum of all scores}}{\text{The total number of scores}}\\ \\\text{Average}=\dfrac{52+64+x}{3}$

An average of the three test must be above 70, this means

$\text{Average}>70\\ \\\dfrac{52+64+x}{3}>70$

Solve this inequality. First, multiply it by 3:

$52+64+x>210\\ \\x>210-52-64\\ \\x>94$

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3 years ago