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jolli1 [7]
3 years ago
13

PLEASE HELP WITH MATH AND BEST GETS BRAINLIEST. PLEASE SHOW WORK.

Mathematics
2 answers:
leonid [27]3 years ago
4 0
Distribute
remember the -1 infront of the second set of partnhasees
a(b+c)=ab+ac
2(3/5x+3)=6/5x+6
-1(2/3x-1)=-2/3x+1
we now have
6/5x+6-2/3x+1
gropu like terms
6/5x-2/3x+6+1
add like terms
6/5x-2/3x+7
make bottom numbers same
6/5x times 3/3=18/15x
2/3x times 5/5=10/15x
18/15x-10/15x+7
8/15x+7
equivilent is 8/15x+7
Verizon [17]3 years ago
3 0
To solve this, we must multiply what's outside of the parentheses by what is inside. 
For the first parenthetic set, we can see that we are multiplying the values by 2, so we do it this way:

2( \frac{3}{5}x + 3) = (2 *  \frac{3}{5}x) + (2 * 3) =  \frac{6}{5}x + 6

For the second part of the expression, we don't see any value, but we understand that there is a negative 1 that we don't see, because of the minus sign between the two parenthetic sets.
So we end up with this:

- (\frac{2}{3}x - 1) = (-1 *  \frac{2}{3}x) + (-1 * -1) = (\frac{-2}{3}x + 1)

So, without parentheses, the expression looks like this:

\frac{6}{5}x + 6 + \frac{-2}{3}x + 1

Which could be further reduced to

\frac{8}{15}x + 7

Hope that helped! =)
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3 years ago
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Let a Δ b = (a+b)2+5. what is 1 Δ - 4?
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It looks like ∆ is defined as

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How many zeros are in the product of any nonzero whole number and 1000?Explain your answer
kotegsom [21]

Answer:

At least 3.

Step-by-step explanation:

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For example 53 * 1000 = 53,000 (3 zeros).

101 * 1000 = 101,000  (4 zeros).

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1 3/4 x 1 1/3 give your answer as a mixed number
WARRIOR [948]

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Step-by-step explanation:

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yarga [219]

Answer:

84 sq.m.

Step-by-step explanation:

Given : Sides of triangle are 13 cm,14 cm and 15 CM

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Tip: use Heron's formula

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