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Bess [88]
3 years ago
12

Please explain if you can

Mathematics
1 answer:
igomit [66]3 years ago
7 0
I cannot see what you have showed. It wont pop up. :( Im sorry 

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A roll of 100 pennies is in the shape of a right cylinder. Each penny has a diameter of 0.75 inches and a thickness of 0.04 inch
zalisa [80]

Answer:

  • (B) π(0.75/2)²(4)

Step-by-step explanation:

<u>The volume formula:</u>

  • V = πr²h

<u>Given:</u>

  • d = 0.75 in ⇒ r = d/2 = 0.75/2 in
  • h = 0.04 in

<u>The volume of each penny:</u>

  • V = π(0.75/2)²(0.04)

<u>The volume of 100 pennies:</u>

  • V = 100*π(0.75/2)²(0.04) = π(0.75/2)²(4)

Correct choice is B

6 0
3 years ago
Read 2 more answers
How can you use exponents to write 10,000,000?
aleksklad [387]

Let's break it down into something more simple:

What's 10 times 10? 100

What's 10 times 10 times 10? 1000

Do you see a pattern? (Cool trick - The number of 10s match the number of 0s in the answer)

We have seven 0s in our answer, so let's check:

10 x 10 x 10 x 10 x 10 x 10 x 10 = 10,000,000

An exponent tells us that we're multiplying the big number by itself however many times the little number in the corner tells us.

So if we multiply 10 by itself 7 times (what we did above), then our answer will be 10 to the power of 7, or 10^{7}. This is equal to 10,000,000.

6 0
2 years ago
5x + 2y=7<br> - 2x + 6y=9
ollegr [7]

Answer:

x = \frac{12}{17} or 0.706

y = \frac{59}{34} or 1.735

Step-by-step explanation:

5x + 2y=7    ----->(eq 1)

- 2x + 6y=9 ----->(eq 2)

Multiply (eq 1) with 3

3×(5x + 2y) = 3×7  

15x + 6y = 21  ----->(eq 3)

substract (eq 3) from (eq 2)

- 2x + 6y - (15x + 6y) = 9-21

- 2x + 6y - 15x - 6y = 9-21

- 2x - 15x + 6y - 6y = 9-21

-17x = -12

x = -12 ÷ -17

x = \frac{12}{17}

put x = \frac{12}{17} in (eq 1)

5*\frac{12}{17} + 2y = 7

2y = 7- 5*\frac{12}{17}

2y = \frac{7*17 - 60}{17}

2y = \frac{119- 60}{17}

2y = \frac{59}{17}

y = \frac{59}{17*2}

y = \frac{59}{34}

6 0
3 years ago
If a=2^3 x 3^7 x 5^3 x 11^4 and b= 2^2 x 3^5 x 7^2 x 11 x 13 , find the following:
Natalka [10]

Answer:

10,692

Step-by-step explanation:

GCF stands for Greatest Common Factor.  

The way to find it is easy once you have the prime decomposition.

Search for common factors in the decomposition and take the least power, then multiply them all.

So, in our case, as the numbers are already broken down into prime factors , we have

GFC(a,b)=2^2.3^5.11=10,692

5 0
3 years ago
PLEASE HELP I WILL MARK BRAINLIST
shtirl [24]
The minimum is 91. The first quartile is 112. The median is 173. The third quartile is 215. The maximum is 253.
6 0
3 years ago
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