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Elanso [62]
3 years ago
11

Suppose the expression was (12 - 3)². Would you still simplify 3² first? Explain.

Mathematics
2 answers:
Soloha48 [4]3 years ago
5 0

Answer:

No because the 2 is outside of the parentheses meaning it should be 9^2

Step-by-step explanation:

Anna35 [415]3 years ago
5 0

Answer:

No, I will not simplify 3² first.

Rather I would simplify (12-3) first, i.e., 9.

Then simplify 9² which gives the answer 81.

Step-by-step explanation:

  • (12-3)²
  • = 9²
  • = 81
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Answer:

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Step-by-step explanation:

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6 0
3 years ago
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$500 at 12% for6 months
astraxan [27]

Answer:

$60 per month $360 for 6 months

Step-by-step explanation:

12/100=x/500

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3 years ago
I'm having trouble with unit rates. Please help.
dezoksy [38]

The answer to your question is "C. 4 feet/ 1 second."


When the rate has a quantity of 1, it is a unit rate. So if the rate is 4 feet to 1 second (or four feet per second), it would be considered a unit rate.

5 0
3 years ago
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How to substitute 3x+3y=-3 and y=5x-1?
schepotkina [342]
Since y = 5x-1, we can fill it into 3x + 3y = -3. First, let's look at relating to a simpler equation. Let's say that x + y = 9 and y = 3 + 5. Now, we can fill it in to get that x + (3 + 5) = 9. Now, we know that 3+5 is 8, so x + 8 = 9. Now, x = 1. Likewise, we can do the same. For 3x + 3y = -3, all we need to do is to switch the y in 3x + 3y = -3 with 5x - 1. So it would become 3x + 3(5x - 1) = -3. Now we distribute to get 3x + 15x - 3 = -3. Now add three to both sides to get 3x + 15x = 0. Now simplify to get 18x = 0. Now we know that x = 0. Now fill x into y = 5x - 1. So y = 5(0) - 1. Now we know that y = -1.

To check fill in the answer to 3x + 3y = -3.
3(0) + 3(-1) = -3
 0 + (-3) = -3
0 - 3 = -3
-3 = -3
Now that our check is completed we now know that x is 0 and y is -1.
7 0
4 years ago
Which equation represents a line which is parallel to the line y=-8/3x-8?
Amiraneli [1.4K]

Answer:

8x+3y=-6

Step-by-step explanation:

Convert to slope-intercept form

8x+3y=-6

3y=-8x-6

y=-8/3x-2, The slope is the same, therefore the lines are parallel.

6 0
4 years ago
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