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Tanya [424]
2 years ago
14

Simplify these calculations, leaving your answer in index form.

Mathematics
1 answer:
alexira [117]2 years ago
7 0
Dividing x5^5 / x5^5 is 1
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An insurance agent says the standard deviation of the total hospital charges for patients involved in a crash in which the vehic
lisov135 [29]
Let the null hypothesis be that the agent's claim is correct. Using a standard normal probability table we find:
p-value=P(Z \ \textgreater \ 1.1)=0.14
The p-value 0.14 is much larger than alpha = 0.01, so we cannot reject the agent's claim.
7 0
3 years ago
Direct Variation
olga2289 [7]

Answer:

<u>8 home theaters are sold for each $ 500 spent on advertising </u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Advertising ($)     1,000 - $ 2,000 - $ 3,000

Home Theaters      16      -    32       -    48

2. How many  home theaters does the company sell for each $500 spent on  advertising?

As we can see in the graph:

16 home theaters are sold when the amount on advertising is $ 1,000

32 home theaters are sold when the amount on advertising is $ 2,000

48 home theaters are sold when the amount on advertising is $ 3,000

Therefore, we can use this ratio:

x = Number of home theaters that are sold when the amount on advertising is $ 500

16/1,000 = x/500

1,000x = 500 *16

1,000x = 8,000

x = 8,000/1,000

<u>x = 8</u>

3 0
3 years ago
At the zoo, the Spencer family bought 3 adult tickets and 2 children's tickets for $23.50.
Umnica [9.8K]

Answer:

Step-by-step explanation:

3x+2*2x=28

3x+4x=28

7x=28

/7

x= 28/7

x= $4 child ticket

adult ticket = 2x = 2*4 = 8

5 0
2 years ago
Read 2 more answers
The rectangle is 3 3⁄4 centimeters long and 2 1⁄2 centimeters wide. What is the area of this rectangle?
Deffense [45]
Just multiply the numers given
6 0
3 years ago
I WILL MARK THE BRAINLIEST!!! One math question. please explain as well
8090 [49]
Surface area of a sphere=4pi(r^2)
Volume of a sphere=(4/3)pi(r^3)
You need to find the r value to calculate surface area, so I'll solve for that first.
(4/3)pi(r^3)=2254pi
(4/3)(r^3)=2254
r^3=1690.5
r=(1690.5)^(1/3), around 11.9126m
Substitute this in to find surface area
A=4pi(r^2)=4pi(11.9126)^2
=1783.2818 m^2
5 0
3 years ago
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