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emmasim [6.3K]
2 years ago
8

(3x)^2-2x^2 when x=-2

Mathematics
1 answer:
Leto [7]2 years ago
3 0

Hey there!

(3x)^2 - 2x^2

= (3(-2))^2 - 2(-2)^2

= -6^2 - 2(4)

= 36 - 8

= 28

Therefore, your answer is: 28

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

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sammy [17]

Answer:

20

Step-by-step explanation:

Why? because 100$ in 5 days is he spent the same much each day then it's 20 because 20 x 5=100

20 x 1=20

20 x 2=40

20 x 3=60

20 x 4=80

20 x 5=100

5 0
2 years ago
Which proportion can be used to find 65% of 90?
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58.5

Step-by-step explanation:

0.65 decimal form

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3 years ago
Which of the following numbers are greater than or equal to 4/7? Is it 2/5, 0.57, or 2/3. Use explanation why.
Sergeeva-Olga [200]

Answer:

2/3

Step-by-step explanation:

2/5=0.4 and 4/7=0.571428

0.57<0.571428

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5 0
3 years ago
Rewrite each expression without using absolute value notation |7m-56| if m&lt;8
dusya [7]

Considering the definition of the absolute value function, the expression is written as -7m + 56.

<h3>What is the definition of the absolute value function?</h3>

The absolute value function is defined as follows:

  • |x| = x, x \geq 0.
  • |x| = -x, x < 0

That is, where the expression is negative, it is multiplied by -1, while where it is not negative the expression is kept.

In this problem, the expression is:

|7m - 56|

For m < 8, we have that one example is m = 0:

7(0) - 56 = -56.

The expression is negative, hence the signal is changed, that is:

|7m - 56| = -(7m - 56) = -7m + 56.

More can be learned about the absolute value function at brainly.com/question/24734454

#SPJ1

7 0
2 years ago
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