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Bond [772]
2 years ago
8

PLEASE HELP 5|12-r|>15

Mathematics
1 answer:
Novay_Z [31]2 years ago
4 0

Step-by-step explanation:

5.|12 - r| > 15

|12 - r| > 15/5

|12 - r| > 3

12 - r < -3 or 12 - r > 3

-r < -3 - 12 or -r > 3 - 12

-r < -15 or -r > -9

r > 15 or r < 9

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(a^3+a^2b/5a)(25/3b+3a)
zheka24 [161]

Answer:

\frac{5a}{3}

Step-by-step explanation:

The given expression is;

(\frac{a^3+a^2b}{5a})(\frac{25}{3b+3a} )

Factorize;

(\frac{a^2(a+b)}{5a})(\frac{25}{3(b+a)} )

Cancel out the common factors;

(\frac{a(1)}{1})(\frac{5}{3(1)} )

Simplify;

\frac{5a}{3}

5 0
3 years ago
Read 2 more answers
Let the universal set be the set of integers and let A = {x | x^2 ≤ 5}. Write A using the roster method.
Zarrin [17]

Answer:

Step-by-step explanation:

Given that Z the set of integers is the universal set and

A is given in set builder form.

A = {x | x^2 ≤ 5}

To convert this into roster form, we can find solutions for x

When x^2\leq 5\\|x|\leq \sqrt{5} =2.236

i.e. all integers lying between -2.236 and 2.236

The only integers satisfying this conditions are

-2,-1,0,1,2

Hence A in roster form is

A={-2,-1,0,1,2}

8 0
4 years ago
Which of the following expressions are equivalent to 7.2 ÷ -8.1 ÷ -3.7?
Inessa05 [86]

Step-by-step explanation:

7.2 / (-8.1) / (-3.7) = Positive

A = (-7.2) / (-8.1) / (-3.7) = Negative

B = (-7.2) / (8.1) / (3.7) = Negative

Hence the answer is C, none of the above.

3 0
3 years ago
How much is <br>30-[(19x2)-(3x4)]
aliina [53]
-20 is ur answer because u do the stuff in the "()" first
5 0
3 years ago
Use substitution to solve each system of equations<br> 2x -y = 6 <br> -3y = -6x + 18
vichka [17]
Hope this helps
Step are all below

3 0
3 years ago
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