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Zarrin [17]
3 years ago
11

Please help 10 points

Mathematics
2 answers:
Mrrafil [7]3 years ago
7 0

Answer:

15

Step-by-step explanation:

21-6 = 15.

the answer to the question

WARRIOR [948]3 years ago
5 0

Answer:

FG = 15

Step-by-step explanation:

Note that

EF + FG = EG ← substitute values into equation, that is

6 + FG = 21 ( subtract 6 from both sides )

FG = 21 - 6 = 15

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LOTS OF POINTS <br> Simplify the expression by factoring, showing the steps in your work
julia-pushkina [17]

Answer:

\frac{3x+7}{4x+1}

Step-by-step explanation:

\frac{12x^2+31x+7}{16x^2+8x+1}

First you factor 12x^2+31x+7:

=\left(12x^2+3x\right)+\left(28x+7\right)

Then you factor out 3x from 12x^2+3x:

12x^2+3x

=12xx+3x

=3\cdot \:4xx+3x

=3x\left(4x+1\right)

Then you factor out 7 from 28x+7:

28x+7

=7\cdot \:4x+7

=7\left(4x+1\right)

=3x\left(4x+1\right)+7\left(4x+1\right)

Factor out common term 4x+1:

=\left(4x+1\right)\left(3x+7\right)

\frac{\left(4x+1\right)\left(3x+7\right)}{16x^2+8x+1}

Factor 16x^2+8x+1:

=4^2x^2+8x+1

=4^2x^2+8x+1^2

=\left(4x\right)^2+8x+1^2

=\left(4x\right)^2+2\cdot \:4x\cdot \:1+1^2

Use the perfect square formula:

=\left(4x+1\right)^2

\frac{\left(4x+1\right)\left(3x+7\right)}{\left(4x+1\right)^2}

Cancel out common factor 4x+1:

=\frac{3x+7}{4x+1}

8 0
3 years ago
Simplify (2 3/5) divided ( -3 3/4)
Ostrovityanka [42]

Flip over the second fraction

2 3/5= 13/5 ( Multiply the whole number with the denominator, 2*5=10 then add the numerator 10+3=13

-3 3/4= -15/4

13/5 * -4/15= -52/75

Answer :-52/75

4 0
3 years ago
A shirt is originally priced at $19.99. it was marked down 25%. what is the sale price?
Bond [772]

Answer:

Final price: $14.99

Step-by-step explanation:

Discount= original price x discount % / 100

Discount= 19.99 x 25/ 100

Discount= 499.75/100

You save= $4.9975



Final Price= original price - discount

Final price= 19.99 - 4.9975

Final Price= $14.9925

Final Price= $14.99

8 0
3 years ago
84% of 72 with work. (Plz Help ) btw my name is Hannah
atroni [7]

Answer:

The answer is 60.48

Step-by-step explanation:

In order to find this, simply multiply the two terms together.

84% * 72

.84 * 72

60.48

8 0
3 years ago
Which functions domains consist of all real numbers except -2?
katrin2010 [14]
Is -2 the only point of reference given? 
6 0
3 years ago
Read 2 more answers
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