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max2010maxim [7]
3 years ago
5

Simplify – 2(7x – 3)

Mathematics
1 answer:
ANTONII [103]3 years ago
5 0

All you need to do here is multiply the outside number by both 7x and -3.

When done correctly it should look like this:

-14x+6

Thats the answer.

7 times 2 gives you 14 but when multiplying mixed signs it turns negative so it would be -14.

negative 3 times negative 2 gives you 6. Both signs are negative, and you would suppose it would turn into a negative but thats only true when both signs are mixed. Both the 3 and the 2 are negative, making the signs the samez giving you positive

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2 divided by n equals negative 7
solniwko [45]

Answer:

n= 2/-7

Step-by-step explanation:

2/n = -7

Multiply by n: 2= -7n

Divide by -7: n= 2/-7, or n= -0.286

6 0
4 years ago
Jacie can swim 3/4 of a mile in 3/8 of an hour.how far can she swim in one hour?
Lyrx [107]

Answer:

2 miles

Step-by-step explanation:

We can use ratios to solve this problem


3/4 miles         x miles

--------------- = ---------------

3/8 hours          1 hours

Using cross products

3/4 * 1 = 3/8 * x

Multiply by 8/3 to isolate x

3/4 * 8/3 = 3/8*8/3 *x

8/4 = x

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5 0
3 years ago
Cos3x+cosx=2cos2xcosx
andrew-mc [135]

cos(3x)+cos(x)=2\cdot cos\left(\dfrac{3x+x}{2}\right)\cdot cos\left(\dfrac{3x-x}{2}\right)=2\cdot cos(2x)\cdot cos(x).

Green eyes.

8 0
3 years ago
What is the answer for ½+¼⅝​
Sphinxa [80]

Answer:

1 3/8

SOLUTION

add \:  \frac{1}{2}  +   \frac{1}{4} +  \frac{5}{8}

= \frac{4 + 2 + 5}{8}

= \frac{11}{8}

=1 3/8

I hope it helps

have a great day

#Liliflim

7 0
3 years ago
Read 2 more answers
Any suggestions or ideas
kirill115 [55]
That will be D good sir
4 0
3 years ago
Read 2 more answers
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