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Ghella [55]
3 years ago
12

Factor completely 49x^2-36

Mathematics
2 answers:
Andru [333]3 years ago
3 0
(7x - 6)(7x + 6)

There is a positive and a negative square root to every number. 
Hope this is helpful. :)
AnnZ [28]3 years ago
3 0
(7x+6)(7x-6)
All three of the factors in the binomial are square roots. The square root of 49 is 7, the square root of x^2 is x, and the square root of 36 is 6. Also, since you are subtracting, you know that you will have a positive and a negative factor in the end.
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bekas [8.4K]

Step-by-step explanation:

(+)(+)=(-)(-)=(+)\\(+)(-)=(-)(+)=(-)\\\\-(-x-3)=-1(-x-3)\qquad\text{use the distributive property}\\\\=(-1)(-x)+(-1)(-3)=x+3

3 0
3 years ago
Find five consecutive integers whose sum is 195
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7 0
3 years ago
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2 years ago
Calculate the number of subsets and the number of proper subsets for the set.
arlik [135]

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The given set has 4 elements, so it has 2⁴ = 16 subsets and 2⁴ - 1 = 15 proper subsets.

Just to illustrate the claim, we have

• subsets of size 0 (1 of these):

{ } (empty set)

• subsets of size 1 (4 of these):

{1/6}, {1/7}, {1/8}, {1/9}

• subsets of size 2 (6 of these):

{1/6, 1/7}, {1/6, 1/8}, {1/6, 1/9}, {1/7, 1/8}, {1/7, 1/9}, {1/8, 1/9}

• subsets of size 3 (4 of these):

{1/6, 1/7, 1/8}, {1/6, 1/7, 1/9}, {1/6, 1/8, 1/9}, {1/7, 1/8, 1/9}

• subsets of size 4 (1 of these):

{1/6, 1/7, 1/8, 1/9}

and the last one is the only subset that is not a proper subset, because that subset = the set.

6 0
2 years ago
3.366 rounded to the nearest tenth of a ounce
olga nikolaevna [1]

Answer:

The answer is 3.4

Step-by-step explanation:

5 or more, round up

4 or less, round down

rounding 6

round up

so...

3.4

(-2, -7) and (-4, -9)

6 0
2 years ago
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