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vova2212 [387]
2 years ago
11

Jimmy is selling used books at a yard sale. A customer buys 9 books at a cost of $0.75 each and pays with a $20.00 bill. Jimmy m

ust determine c, the amount of change in dollars he should give the customer. Which equation represents c?
Mathematics
1 answer:
zhannawk [14.2K]2 years ago
8 0
9 x 0.75 = 6.75
20-6.75=c
c=13.25
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In 1912, the U.S. government began issuing licenses to radio stations. Each station was given a unique three-letter call sign. R
tatuchka [14]

Answer:

A would make sense

Step-by-step explanation:

6 0
3 years ago
According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 20
Murljashka [212]

Answer:

There is not enough evidence to support the claim that Alaska had a lower proportion of identity theft than 23%.  

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 1432

p = 23% = 0.23

Alpha, α = 0.05

Number of theft complaints , x = 321

First, we design the null and the alternate hypothesis  

H_{0}: p = 0.23\\H_A: p < 0.23

This is a one-tailed test.  

Formula:

\hat{p} = \dfrac{x}{n} = \dfrac{321}{1432} =0.2241

z = \dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

Putting the values, we get,

z = \displaystyle\frac{0.2241-0.23}{\sqrt{\frac{0.23(1-0.23)}{1432}}} = -0.5305

Now, we calculate the p-value from the table.

P-value = 0.298

Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept the null hypothesis.

Conclusion:

Thus, there is not enough evidence to support the claim that Alaska had a lower proportion of identity theft than 23%.

5 0
2 years ago
PLEASE HELP ILL GIVE BRAINIEST AND POINTS ASAP
miskamm [114]

Answer:

$1161

Step-by-step explanation:

21.5% of 5400 is 1161.

6 0
2 years ago
A circle has a radius of 14 units. What is the area in square units of the circle in terms of π?
Snowcat [4.5K]
Area of circle = pi r²

14²= 196

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Area = 196pi units²
3 0
3 years ago
What is the volume of a right circular cylinder with a base diameter of 6 m and a height of 5 m?
ikadub [295]
Radius = 3 m
Cylinder Volume =<span>  </span><span>π <span>• r² • height
</span></span>
Cylinder Volume =<span>  3.14159 * 3^2 * 5

</span><span><span><span>Cylinder Volume =<span>  </span>141.372

</span></span></span>OR  PI * 45


6 0
3 years ago
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