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FrozenT [24]
3 years ago
12

Which of the following expressions is equivalent to 6m - 10?

Mathematics
1 answer:
anastassius [24]3 years ago
3 0
<span>6m - 10

Test each answer to find out which one's correct.
</span><span>2(3m + 5)
6m + 10

</span><span>-2(5 - 3m)
-10 + 6m
6m - 10

</span><span>2(3m - 10)
</span>6m - 20

The correct answer is <span>-2(5 - 3m).
</span>
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2) Evaluate 9 X 364 – 9 X 125 – 9 X 39 without the use of your calculator
Brums [2.3K]

Answer:

<em>9*364 - 9*125 - 9*39 = 1,800</em>

Step-by-step explanation:

<em>Mental Calculation</em>

If we detect known patterns in the calculations, we could easily give their results without the use of calculators.

We are given the expression to evaluate:

9*364 - 9*125 - 9*39

The first thing to note is the 9 is a common factor of all terms, thus we take it out:

9*(364 - 125 - 39)

The negative numbers can be easily added

     125

+     39

------------

     164

Now our expression is much easier:

9*(364 - 164)

The subtraction of 364-164 is 200, thus the result of the operations is:

9*200. We only need to recall 9*2=18 and add two zeros to get 1,800, thus:

9*364 - 9*125 - 9*39 = 1,800

7 0
3 years ago
HELP I NEED AN ANSWER TO THIS QUESTION ASAP BEFORE MY TEACHER FAILS ME!!!!!!!!
tino4ka555 [31]

Answer:

18 cans

Step-by-step explanation:

5 cans in total for 1 part.

90 divided by 5 = 18

7 0
3 years ago
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Headphones come in small packages. These packages have to be put in larger boxes for shipment. If 20 packages of headphones can
pashok25 [27]

Answer:

15 ??

Step-by-step explanation:

7 0
3 years ago
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Is 3/9 a terminating decimal?
jarptica [38.1K]

Answer:

NO, It is<u> non terminating / recurring decimal</u>

Step-by-step explanation:

3/9= 0.33333333......

remainder= 3

6 0
3 years ago
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FAST ANSWER PLEASE THANKS
Citrus2011 [14]

Answer:

(f • g)(x) = x² - 6x + 7

Step-by-step explanation:

Suppose

f(x) = x² - 2

g(x) = x - 3

Determine

(f • g)(x) = ...

We can compose the functions by doing the following

(f • g)(x) = f(g(x))

(f • g)(x) = f(x - 3)

(f • g)(x) = (x - 3)² - 2

(f • g)(x) = x² - 6x + 9 - 2

(f • g)(x) = x² - 6x + 7

I hope this helps!

8 0
3 years ago
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