1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
-Dominant- [34]
2 years ago
9

Please Help!!

Mathematics
1 answer:
melamori03 [73]2 years ago
6 0

Answer:

34 rolls

Step-by-step explanation:

For Frank to cover his whole ceiling, he needs paper that will cover

20 ft x 20 ft                      

20 x 20 = 400 ft

So, Frank needs to cover 400 ft of the ceiling. He has to split up this large need for paper into smaller rolls, because the rolls he can buy are small.

If each roll has 12 ft, we need to find how many 12-feet are in 400 feet.

To do this, we should divide

400 / 12

= 33.333

Because Frank cannot cover the whole ceiling using only 33 rolls, he has to buy an additional roll to make sure he can cover the extra area [that would be left over if he were to only buy 33 rolls, which would only cover 396 feet]

So, Frank will need to buy 34 rolls to have enough paper to entirely cover his ceiling.

You might be interested in
Evaluate the expression for the given values.<br><br> mx — y when m = 5, x = 3, and y =8
Serhud [2]
Mx - y
5 times 3 - 8
15 - 8
=
7
7 0
3 years ago
Expand and combine like terms (3z^5 +7z^2)^2
AVprozaik [17]

Answer:

\displaystyle{(3z^5+7z^2)^2 = 9z^{10}+42z^7 + 49z^4 }

Step-by-step explanation:

Since it's a perfect square, we can simply use the formula:

\displaystyle{(ax+by)^2 = a^2x^2+2abxy+b^2y^2}

Given the perfect square expression \displaystyle{(3z^5+7z^2)^2}. Apply perfect square formula:

\displaystyle{(3z^5+7z^2)^2 = 3^2(z^5)^2+2(3)(7)(z^5)(z^2) + 7^2(z^2)^2 }

Knowing laws of exponent is mandatory when it comes to algebra. Recall that:

\displaystyle{(a^m)^n = a^{mn}}\\\\\displaystyle{a^m \cdot a^n = a^{m+n}}

Apply laws of exponent to simplify the terms or expression:

\displaystyle{(3z^5+7z^2)^2 = 9z^{10}+42z^7 + 49z^4 }

Since there are no like-terms to do operation with (these terms have different degrees so they are not considered to be like-terms.) Therefore, the final answer is:

\displaystyle{(3z^5+7z^2)^2 = 9z^{10}+42z^7 + 49z^4 }

8 0
1 year ago
Solve the equation. Then check your solution.
Tanzania [10]
The answers c. 13/32
6 0
2 years ago
Read 2 more answers
What is the length of side PQ?
Margaret [11]
64; Line pq is correspondent with line ab and triangle PQR is 4 time as big as triangle ABC.
4 0
3 years ago
Read 2 more answers
Consider the right rectangular prism.
NARA [144]

Answer:

B

Please mark brainliest if correct

Step-by-step explanation:

We can rule out A and D because of the area.

The area of a cube with side length 1/4 is 1/64, times 840, is 13 1/8

The area of a cube with side length 1/2 is 1/8, times 420, is 52 1/2

7 0
3 years ago
Read 2 more answers
Other questions:
  • 0.72 is ten times as much as ________. *
    5·2 answers
  • The organic garden at a restaurant is rectangular in shape and has a perimeter of 84 feet. If the length lof the garden is 24 fe
    11·1 answer
  • Find the slope of the line passing through the points (0,12) and (4,3)
    8·1 answer
  • What is the square root of 100^3
    7·2 answers
  • A data set is shown below. Which is the outlier? 56, 64, 73, 59, 98, 65, 59.
    14·1 answer
  • How is solving an equation with no solution similar to solving an equation that has an infinite number of solutions?
    11·1 answer
  • The slope of a given line is shown below. Find the slope of a line parallel to the given line and the slope of a line perpendicu
    14·1 answer
  • i really really need help with all of these you don't have to show your work but please help me with at least some or all of the
    13·1 answer
  • Miss Garner has 69 gold stickers. She wants to give the same number of stickers to each of her 15 students. If she gives away as
    8·2 answers
  • Im confused please help
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!