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Vitek1552 [10]
3 years ago
13

Solve this inequality: -12a +7<31

Mathematics
2 answers:
Ne4ueva [31]3 years ago
8 0

Answer:

a>-2

Step-by-step explanation:

\sf{}

=> -12a +7 <31

=> -12a+7-7<31-7

=> -12a<24

=> a>-2

vagabundo [1.1K]3 years ago
7 0

Answer:

a > -2

Step-by-step explanation:

-12a +7<31

Subtract 7 from each side

-12a +7-7<31-7

-12a <24

Divide by -12, remembering to flip the inequality

-12a/-12 >24/-12

a > -2

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PART 2:

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materials=

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PART 3

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5 0
3 years ago
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At what x value does the function given below have a hole?<br><br> f(x)=x+3/x2−9
S_A_V [24]

Answer:

hole at x=-3

Step-by-step explanation:

The hole is the discontinuity that exists after the fraction reduces. (Still doesn't exist for original of course)

The discontinuities for this expression is when the bottom is 0. x^2-9=0 when x=3 or x=-3 since squaring either and then subtracting 9 would lead to 0.

So anyways we have (x+3)/(x^2-9)

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Now this equals 1/(x-3) with a hole at x=-3 since the x+3 factor was "cancelled" from the denominator.

4 0
3 years ago
What is the value of the following expression?
monitta

The expression (−81)(−9)  will give the value of 729.

<u>Step-by-step explanation:</u>

The given expression is (−81)(−9) .

The both numbers in the expression are negative numbers and they are given inside the brackets.

This means that, the negative numbers must be multiplied to get a final value.

<u>The rules in multiplication are :</u>

  • Positive number × Positive number = positive number
  • Negative number × Positive number = negative number
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  • Negative number × Negative number = positive number

From the rules, it can be determined that the result of any two negative numbers will be a positive number.

So, eliminate option A) and B) because they have negative sign.

The expression (−81)(−9) = -81 × -9

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Therefore, the option C) and D) are not in match with 729. None of the options are not the value of the given expression (−81)(−9).

6 0
3 years ago
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Answer:

2. 4a^6b^2

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4. C

Step-by-step explanation:

I think this is right but I'm not sure, this is some tough stuff.

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7 0
2 years ago
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GenaCL600 [577]

Answer:

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