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Simora [160]
3 years ago
9

I could use help with these please with the work and an explanation​

Mathematics
1 answer:
Softa [21]3 years ago
5 0

Answer:

x+6

x-9

x²-x

Step-by-step explanation:

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What is the tadius of this circle if the circumfrance is 18pi cm​
Sergio039 [100]
The radius is 9. U just need to do the circumference divided by 2
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You loan your brother $300 and charge him 2% simple annual interest. He promises to
evablogger [386]

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$306

Step-by-step explanation:

In one year, the 2% annual interest would have been applied once. Therefore, your brother would pay you 1.02 * 300 which is 306.

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What is the volume of a volleyball with a diameter of 8 inches
natita [175]

Hello there!

We are going to follow the volume of a sphere since a volleyball is a sphere. V=4/3πr^3 is the formula for finding the volume of a sphere. The only unknown value is r, or the radius. We find the radius by halving the diameter.

8/2 = 4, so we have a radius of 4 inches.

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Now solve.

V = 4/3 x π x (4)^3

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Lastly, multiply 85.33 by pi.

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8 0
3 years ago
Sarah sold a total of 178 t shirts and posters at a festival. She sold 46 more tshirts than poster. How many posters did she sel
ycow [4]

Sarah sold 66 posters

<em><u>Solution:</u></em>

Let "a" be the number of shirts sold

Let "b" be the number of posters sold

<em><u>Sarah sold a total of 178 t shirts and posters at a festival</u></em>

Therefore,

number of shirts sold + number of posters sold = 178

a + b = 178 ----------- eqn 1

<em><u>She sold 46 more tshirts than poster</u></em>

Number of shirts sold = 46 + number of posters sold

a = 46 + b --------- eqn 2

<em><u>Substitute eqn 2 in eqn 1</u></em>

46 + b + b = 178

2b = 178 - 46

2b = 132

b = 66

Thus she sold 66 posters

7 0
2 years ago
FREE BRAINLIEST!! ill also answer questions that you have posted if you answer correctly!!!! (32pts)
OlgaM077 [116]

Answer:

there is enough info to determine the figure... also the answer is D Hope this helps

Step-by-step explanation:

4 0
3 years ago
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