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2 years ago

Jon buys a shirt for $40 and then buys socks for $15. He lives in Maine and their

1 answer:

6 0

Jon pays $40 and $15. This means that he pays a total of $55. You multiply the total cost by 0.05, which is $2.75. To convert a number to a percentage, multiply it by 100. So, 0.05 as a percent is equal to 5%.

His sales tax will be $2.75.

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The graph of a piecewise defined function is given. evaluate f(-2), f(0), f(1)

vfiekz [6]

Answer:

Step-by-step explanation:

because when x = -2 on the graph the y is -2 (-2,-2)

when the x values is 0 the y value is 1 (0,1)

and when x is 1 the y value is 2. (1,2)

hope this helps. have a good day

5 0

3 years ago

You want to test your newly created Web site, so you have 250 people access it from random locations at random times. Of the peo

Arte-miy333 [17]

Answer: 505

Step-by-step explanation:

The formula to find the sample size n , if the prior estimate of the population proportion (p) is known:

$n= p(1-p)(\dfrac{z}{E})^2$ , where E= margin of error and z = Critical z-value.

Let p be the population proportion of crashes.

Prior sample size = 250

No. of people experience computer crashes = 75

Prior proportion of crashes $p=\dfrac{75}{250}=0.3$

E= 0.04

From z-table , the z-value corresponding to 95% confidence interval = z=1.96

Required sample size will be :

$n=0.3(1-0.3)(\dfrac{1.96}{0.04})^2$ (Substitute all the values in the above formula)

$n= (0.21)(49)^2= 0.21\times2401$

$n= 504.21\approx505$ (Rounded to the next integer.)

∴ Required sample size = 505

6 0

3 years ago

The expression below represents the profit, in dollars, a movie theater makes when n customers attend a movie

aleksklad [387]

Answer:

Step-by-step explanation:

8 0

3 years ago

Which graph shows f(x) = |x| reflected across the x-axis, translated 2 units down and 1 unit to the left?

Reptile [31]

Answer:

First question is B

Second question is also B :)

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers

Solve: 3/K+3 = 8/k-2

fomenos

Answer:

k = 1

Step-by-step explanation:

I will upload a picture with all of my work.

7 0

3 years ago