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valentinak56 [21]
4 years ago
7

Can someone answer this, please? I need a bit of help on this

Mathematics
1 answer:
Aneli [31]4 years ago
8 0

Answer:

x=0 or f square root of 3f/9 or -f square root of 3f/9

Step-by-step explanation:

the steps are very long but I'm pretty sure it's correct

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The distance around the middle of a sphere (the circumference) equals 37.699 in. what is the surface area of the sphere?
podryga [215]

To solve this problem you must apply the proccedure shown below:

1. Clear the radius from the formula for the circumference of a circle and substitute values, as following:

C=2\pi r\\ r=C/2\pi \\ r=37.699in/2\pi \\ r=5.99in

2. Substitute the radius calculated into the formula for calculate the surface area of the sphere:

SA=4\pi r^{2} \\ SA=4\pi(5.99in^{2})\\ SA=450.88in^{2}

The answer is: 450.88in^{2}

5 0
3 years ago
Sam opened a restaurant. On the first day he had 100 customers. On the fourth day he had 160 customers. If the number of custome
IRISSAK [1]

Answer:

120 customers on the 2nd day

Step-by-step explanation:

100/1ST DAY

120/2nd day

140/3rd day

160/ 4TH DAY

3 0
3 years ago
My friend recently proved 0=1 and i know something is wrong but i dont know what
konstantin123 [22]

Step-by-step explanation:

Remember when expanding radicals,

\sqrt{ab}  =  \sqrt{a}  \times  \sqrt{b}

When expanding radicals into two radicals, we don't let our radicand have two negative answers.

i  =  \sqrt{ - 1}

{i}^{2}  =  - 1

We don't do this

(\sqrt{ - 1} ) {}^{2}  =  \sqrt{ - 1 \times  - 1}

- 1 =  \sqrt{1}

- 1 = 1

5 0
2 years ago
Read 2 more answers
Christina paid $2 for 5/8 of a gallon of gas.How much does it cost per gallon​
vladimir1956 [14]

Answer:

$3.20

Step-by-step explanation:

I divided the $2 by 8 to see how much 1/8 a gallon cost.

I got 0.40

Multiple this by 8 to get 8/8 or 1 gallon.

You get 3.2

so $3.20

Hope this helped. :)

5 0
3 years ago
You plant flowers in your garden and only 75% of them sprout how many can you predict to sprout if you plant 20 seeds?
SSSSS [86.1K]
Well basically by reading this question, I believe that if 75% sprout of the 20 seeds your equation would look like this 20(0.75) 0.75 is basically a simplified version of the 75% just written as a decimal so basically your answer would be 15 seeds ( so I believe you will be able to predict that 15 seeds will sprout! Let me know if this was either, helpful or non- helpful! I hope you have done a wonderful job!
5 0
3 years ago
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