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earnstyle [38]
3 years ago
13

a roll of paper is 11.8 inches by 78.7 inches you need cover wall that is 28 inches by 85 inches how many rolls of paper is need

ed
Mathematics
1 answer:
Delvig [45]3 years ago
3 0

we need 2.56 rolls of toilet paper

i found this my multiplying 11.8x78.7=982.66

next, i multiplied 28x85=2380

and finally, we divide 2380/982.66

and our answer is: 2.56

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Evaluate the expression.<br> -8.x – 3y if x = 4 and y = -2
AURORKA [14]

Answer:

-8.4 + 6 hope this helped!

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
I need help with pythagoras’ theorem
fomenos

Answer:

Pythagoras’ theorem  is a way to find a side or hypothesis when you have 2 sides.  

The formula is:  a^2 + b^2 = c^2

a and b are sides

c is the hypothesis

<u>Ex:  A triangle has a leg that is 5 inches and a leg that is 7 inches.  Find the hypothesis using Pythagoras' theorem.  </u>

A leg is another way of saying a side.

5^2 + 7^2 = c^2

25 + 49 = x^2

sqrt(74) = sqrt(x^2)

sqrt(74) inches = hypothesis

<u>Ex:  A triangle has a leg that is 9 feet and a hypothesis that is 25 feet.  Find the other leg using Pythagoras' theorem. </u>

9^2 + b^2 = 25^2

81 + b^2 - 81 = 625 - 81

sqrt(b^2) = sqrt(544)

b = sqrt(554)

Do you understand more?

4 0
3 years ago
878 divided by 26 solve it
solmaris [256]

Answer:

33.7692307692 or for it to be rounded, 34 or 33.8

Step-by-step explanation:

3 0
3 years ago
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4^6 X 4^3<br><br> 4^9<br> 4^18<br> 12^9<br> 64^9
ASHA 777 [7]

Answer:

4^9

Step-by-step explanation:

6 0
3 years ago
Which of the following correctly describes the product below? for study island
Tanzania [10]

The statement that correctly describes the product, 5.15 x 6√7, which is 81.7537155..., is <u>A. </u><u>irrational</u>.

<h3>What is an irrational product?</h3>

An irrational number is one that can be written as a decimal, but not as a fraction.

An irrational number has endless non-repeating digits to the right of the decimal point.

The rules for determining if a product is rational or irrational are as follows:

  1. The product of two rational numbers is rational.
  2. The product of a rational number and an irrational number is irrational.
  3. The product of two irrational numbers is irrational.

<h3>Data and Calculations:</h3>

5.15 x 6√7

= 5.15 x 6 x 2.64575...

= 81.7537155...

Thus, the product of 5.15 x 6√7 is irrational because √7 is irrational.

Learn more about rational and irrational numbers at brainly.com/question/20400557

#SPJ1

<h3>Complete Question with Answer Options:</h3>

Which of the following correctly describes the product below?

5.15 x 6√7

A. irrational

B. neither rational nor irrational

C. a combination of both rational and irrational

D. rational

6 0
2 years ago
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