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hjlf
3 years ago
10

What is the factorization of 49b^2 - 81 ?

Mathematics
2 answers:
Rina8888 [55]3 years ago
7 0
None of these answers are correct. are you sure these are your answer choices?
irga5000 [103]3 years ago
6 0
The answer is (7b+9)(7b-9), so whichever letter that corresponds to.
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100 points and brainiest if correct:
Sophie [7]

Answer: Add 5 to both sides

What is the first step needed to solve 4 over 7 the whole multiplied by x minus 5 equal negative 13?

Answer- Add 5 to both sides

(4/7)x - 5 = -13

• As mentioned above, first step would be,

adding 5 to both sides

=> (4/7)x - 5 + 5 = -13 + 5

=> (4/7)x = -8

• Now, transporting 7 from L.H.S. to R.H.S

=> 4x = -8 × 7

=> 4x = -56

• Now in the same way, transporting 4 from L.H.S. to R.H.S

=> x = (-56/4)

=> x = -14

• And in this way, or taking<u> (Add 5 to both sides)</u> as our first step, we find that the value of x is -14.

<u>∴ </u><u> </u><u>x = -14</u>

Hope it helps.

7 0
3 years ago
Please answer this question now
Sever21 [200]

Answer:

82 degrees

Step-by-step explanation:

Measure of arc ABC = 86*2 = 172 degrees.

Measure of arc DC = 360 - (145+172) = 360-317 = 43 degrees.

Measure of arc BCD = 121+43 = 164 degrees.

Measure of angle A = 164/2 = 82 degrees

8 0
3 years ago
Read 2 more answers
In right triangle PQR, tanP =sqrt 3/2. Find the length of the hypotenuse of triangle PQR.
Aleksandr [31]
\sqrt{ \sqrt{3}^2+2^2} = \sqrt{3+4} = \sqrt{7}
8 0
3 years ago
Joann is looking at a map. The map shows that two towns are 13.5 inches apart. If the scale factor for the map is 1.25 inch = 10
k0ka [10]

Answer:

biotbhuvb2tupbpu2

Step-by-step explanation:

6 0
3 years ago
Use distributive property to write an expression that is equivalent to 6(u+12)
nirvana33 [79]

Answer:

6u + 72

Step-by-step explanation:

6(u + 12)

Distribute 6 to u and 12

6(u) + 6(12)

6u + 72

6 0
3 years ago
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