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Darya [45]
3 years ago
11

Suppose a study estimated that 63% of the residents of a community (with an

Mathematics
1 answer:
Anvisha [2.4K]3 years ago
3 0

Answer:

Answer choice A(57%)

Step-by-step explanation:

The margin of error is 7%. This means the 63% could either 7% too high or 7% too low. Answer choice A is the only answer choice that is within the range of percents that it could possibly be(between 56% and 70%). Answer choice B is 10% off, 3% out of the range. Answer choice C is 25% off, 18% out of the range. Answer choice D is 32% off, 24% out of the range. Hope this helps. :)

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Round 17.5 to the nearest 1
skelet666 [1.2K]

Answer:

18

Step-by-step explanation:

.5 is 5 4 and below round down 5 and up round up

8 0
3 years ago
All of the points in the picture are on the same line.Find the values for "a" and "b". Explain your reasoning.
kondor19780726 [428]

Answer:

I don’t know

Step-by-step explanation:

Go ask your teacher please help me

With this What is a linear function in the form y= mx + b for the line passing through (4.5, -4.25) with y-intercept 2.5?

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2 years ago
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Whats the reciprocal of 1 8/11
Juliette [100K]

First, change the mixed fraction into improper fraction. Change the whole number into a fraction, and add.

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To find the reciprocal, flip the fraction.

The reciprocal of 19/11 is 11/19

hope this helps

8 0
3 years ago
Read 2 more answers
Please help me solve this.
worty [1.4K]

Answer: 59

Step-by-step explanation:

Given

2b³+5 and b=3 ⇒ 2b³+5=2(3)³+5

Simplify exponents

 2(3)³+5

=2(3×3×3)+5

=2×27+5

Multiplication

=54+5

Addition

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Hope this helps!! :)

Please let me know if you have any questions

8 0
2 years ago
An Arithmetic series has 20 terms. The first term is -81. The sum of all the terms is -480. Use the arithmetic sum formula to fi
timama [110]

Answer:

The last term is 33.

Step-by-step explanation:

Sn = (n/2)(a1 + L)    where a1 = first term and L = the last.

So:

-480 = (20/2) ( -81 + L)

-480 = 10( L - 81)

L- 81 = -480 / 10 = -48

L = -48 + 81

L = 33.

4 0
3 years ago
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