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
AleksAgata [21]
3 years ago
14

Factor completely 49x^2-81.

Mathematics
1 answer:
Tasya [4]3 years ago
5 0

Answer:

C.

Step-by-step explanation:

Since both terms are perfect squares, factor using the difference of squares formula to get you the answer

(7x+9)(7x-9)

 

You might be interested in
Please help!!! Thanks!
Darina [25.2K]
8x+(4*30)=6(6+30)
8x+120=6x+180
2x=60
x=30 pounds of coffee
3 0
3 years ago
Name all of the radii of the circle. Ok guys im soooo sorry!!!
stich3 [128]

Answer: B

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Bill and Mary Ann went to the Viola bakery. Bill bought 5 pies and 7 donuts for ​$12.65. Mary Ann bought 6 of each for ​$12.30.
sweet [91]

Answer:

Pies=$0.85

Donuts= $1.20

Step-by-step explanation:

In the equation let p stand for the number of pies and d stand for the number of donuts.

To solve this set up 2 equations, one representing bill and the other representing Mary Ann.

  • Bill's equation is 5p+7d=$12.65.
  • Mary Ann's equation is 6p+6d=$12.30

Then solve using a system of equations. Systems of equations can be solved using elimination or substitution. I will use substitution. Solve bill's equation for p. This gives you p=\frac{12.65-7d}{5}. Then, you can substitute that into Mary Ann's equation. This looks like 6\cdot \frac{12.65-7d}{5}+6d=12.3. Solve for d. Once you solve d=1.20. Finally, substitute 1.20 back into either Bill's or Mary Ann's for d and solve for p. No matter which equation you use p=0.85.

3 0
2 years ago
An airplane flies at a rate of 356 km/h. The plane travels a total distance of 1424 km. (Use Distance = Rate * Time for your equ
aleksley [76]
1424=356t
1424/356=t
4 hours=time
6 0
3 years ago
An airplane at T(80,20)needs to fly to both U(20,60) and V(110,85). what is the shortest possible distance for the trip?
olga2289 [7]
The answer is 165 units.
4 0
3 years ago
Other questions:
  • An answer to a word problem
    11·1 answer
  • A recipe cal for 2 1/2 cups of flour to make 2 dozen cookies.How many cups of flour would be required to bake 15 dozen cookies
    11·2 answers
  • Of 40 people surveyed, 40% named grape juice as their favorite juice.
    5·2 answers
  • 65 2/3% of the animals at an animal shelter are dogs. About what fraction of the animals at the shelter are dogs?
    7·1 answer
  • What is the equation of the line that passes through the points (−2, 3) and (2, 7)?
    9·1 answer
  • What is 6/2 as a decimal
    12·2 answers
  • What expression is equivalent to -5(x)+(-4)(-3)
    5·1 answer
  • An easy question for people who want points<br> What is the MISSING NUMBER in the pattern?
    5·2 answers
  • at the school book fair, Henry brings $10.00. He purchases a book for $8.50, plus a 6% sales tax. How much money in change will
    6·1 answer
  • <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bt%7D%7B7%7D%3D%2013%5C%5C" id="TexFormula1" title="\frac{t}{7}= 13\\" alt="\frac{t}{
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!