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
Ne4ueva [31]
3 years ago
11

Factor completely 49x2 − 81. a. (7x 9)2 b. (7x − 9)2 c. (7x 9)(7x − 9) d. 7x − 9

Mathematics
2 answers:
xeze [42]3 years ago
6 0

Answer:

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

Step-by-step explanation:

vredina [299]3 years ago
3 0
Use the property
(a -b)(a+ b) = a^2 - b^2

49x^2 - 81 = (7x + 9)((7x - 9)
You might be interested in
Please solve for x z=m+x
SIZIF [17.4K]

Answer:

x = z - m

Step-by-step explanation:

<u>Solving for x with steps:</u>

  • z=m+x
  • x + m = z
  • x + m - m = z - m
  • x = z - m
3 0
3 years ago
The picture below shows a container that Sue uses to freeze water:
Mrac [35]
I think the answer is B if I am correct 18
4 0
3 years ago
Read 2 more answers
 Please Help!!!
Alexandra [31]
The answer is 1.715 hope I helped
4 0
3 years ago
-8 ( y + 4 ) = 10y + 4
maks197457 [2]
Let's solve your equation step-by-step.<span><span>−<span>8<span>(<span>y+4</span>)</span></span></span>=<span><span>10y</span>+4

</span></span>Step 1: Simplify both sides of the equation.<span><span>−<span>8<span>(<span>y+4</span>)</span></span></span>=<span><span>10y</span>+4

</span></span><span>Simplify: </span><span><span><span><span>(<span>−8</span>)</span><span>(y)</span></span>+<span><span>(<span>−8</span>)</span><span>(4)</span></span></span>=<span><span>10y</span>+4</span></span>(Distribute)<span><span><span><span>−<span>8y</span></span>+</span>−32</span>=<span><span>10y</span>+4</span></span><span><span><span>−<span>8y</span></span>−32</span>=<span><span>10y</span>+4

</span></span>Step 2: Subtract 10y from both sides.<span><span><span><span>−<span>8y</span></span>−32</span>−<span>10y</span></span>=<span><span><span>10y</span>+4</span>−<span>10y</span></span></span><span><span><span>−<span>18y</span></span>−32</span>=4

</span>Step 3: Add 32 to both sides.<span><span><span><span>−<span>18y</span></span>−32</span>+32</span>=<span>4+32</span></span><span><span>−<span>18y</span></span>=36

</span>Step 4: Divide both sides by -18.<span><span><span>−<span>18y</span></span><span>−18</span></span>=<span>36<span>−18</span></span></span><span>y=<span>−2

</span></span>Answer:<span>y=<span>−<span>2

Good luck mate :P
</span></span></span>
7 0
3 years ago
Read 2 more answers
in a box of 36 pencils 20 are sharpened what is the ratio of sharpened pencils to unsharpened pencils ​
OleMash [197]

Answer:

20 : 16

or if you have to reduce then the answer is 5 : 4

Step-by-step explanation:


4 0
3 years ago
Other questions:
  • the vet sya that lena's puppy will grow to be at most 28 inches tall. lena's puppy is currently 1 foot tall. how many more inche
    10·1 answer
  • When addressing an envelope for delivery in the United States or Canada, the zip code should appear
    8·1 answer
  • How do I solve this?
    7·1 answer
  • How did u divide that
    9·1 answer
  • 3
    6·1 answer
  • What do I do in all of them!?! Plz help me!!!
    5·2 answers
  • Help, BRAINLIEST to CORRECT answer!
    15·2 answers
  • Drag the labels to the correct locations. Each label can be used more than once, but not all labels will be used.
    11·1 answer
  • What is the area of a rectangle that is 11ft by 2ft?
    7·2 answers
  • Need help on this please help
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!