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velikii [3]
3 years ago
15

Solve for r.

Mathematics
1 answer:
rjkz [21]3 years ago
4 0

Step-by-step explanation:

- 2 {x}^{2}  - 9 =  - 107 \\  -  {2x}^{2}  =  - 98 \\  {x}^{2}  = 49 \\ x =  \sqrt{49}  \\ x = 7 \\  { \boxed{lesser :  \:  - 7}} \\ { \boxed{greater :  \:  + 7}}

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-2 (h - 5) &lt; -12<br><br> Please some help me I don’t understand :(
Marysya12 [62]

Answer:

h>11

Step-by-step explanation:

We have the inequality:

-2(h-5)

Solve. Divide both sides by -2. Since we are dividing by a negative, we must flip the inequality sign. Thus:

h-5>6

Add 5 to both sides:

h>11

Therefore, our solution is all numbers greater than 11 .

This means that if we substitute any number greater than 11 into our original inequality, the inequality will be true.

6 0
3 years ago
PLEASE HELP ME ILL MARK YOU AS A Brainiest
shtirl [24]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
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Answer:

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5 0
3 years ago
2abc-3ab<br> A=2 b=-3 c=4
IRISSAK [1]
2(2)(-3)(4) - 3(2)(-3)

4(-3)(4) - 6(-3)

-12(4) - (-18)

-48 + 18

-30

Whenever there are two minus signs next to each other, your answer should become a positive.  If there is one minus sign and one addition sign, it will stay a negative sign.  If there are two addition signs, the addition sign will stay the same.
(-) (-) = +
(-) (+) = -
(+) (-) = -
(+) (+) = +
8 0
4 years ago
Output<br>4<br>7<br>12<br>rule: X-5​
makvit [3.9K]

Answer:

-1

2

7

Step-by-step explanation:

4 - 5 = -1

7 - 5 = 2

12 - 5 = 7

5 0
3 years ago
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