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Maksim231197 [3]
3 years ago
15

A.

Mathematics
1 answer:
alina1380 [7]3 years ago
8 0

Answer: 4:9

Step-by-step explanation:

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What is the simplified form of the quantity of x plus 8, all over the quantity of 3x plus 7 + the quantity of x plus 7, all over
Temka [501]
\frac{x+8}{3x+7} + \frac{x+7}{x+4}  \\ = \frac{(x+8)(x+4)+(x+7)(3x+7)}{(3x+7)(x+4)}  \\ = \frac{ x^{2} +12x+32+3 x^{2} +28x+49}{3 x^{2} +19x+28}  \\ = \frac{4 x^{2} +40x+81}{3 x^{2} +19x+28}
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4 years ago
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Please help, picture included!
Mariana [72]
Check the picture, notice the domain in red.

recall that the domain is the values for the x-coordinate, whilst the range is the values for the y-coordinate.

4 0
3 years ago
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Goshia [24]

Answer:

<FGH and <JKL are supplementary

<AED and <BEC are complementary

Step-by-step explanation:

For supplementary angles, the sum of the pair of angles must be 180degrees

Given;

<FGH = 109degrees

<JKL = 71degrees

Taking the sum

<FGH + <JKL

= 109 + 71

= 180

Since the sum of the angles is 180, hence <FGH and <JKL are supplementary

Similarly;

Given

<AED = 45degrees

<BEC = 45degrees

Taking the sum

<AED + <BEC

= 45 + 45

=90degrees

Since the sum of complementary angles is 90degrees, hence <AED and <BEC are complementary

8 0
3 years ago
Which number is the greater?<br><br> -3/12 or -1
MA_775_DIABLO [31]

Answer:

-3/12

Step-by-step explanation:

In negative numbers, it's basically the opposite of regular numbers.

Let's explain negative numbers as debts. Let's say you owe a friend 1 dollar, and another 2 dollars. In a sense, you'll have -1 dollars, and -2 dollars. Which one is the greater number? It'll be -1 as you're only losing 1 dollar. Same goes here. Although 1 is a greater number than 3/12, in negative form it isn't.

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3 years ago
a train traveled 145 miles in 4.2 hours. to the nearest tenth, what was the average speed of the train in miles per hour?
AURORKA [14]

Answer:

34.5

Step-by-step explanation:

divide 145 by 4.2

4 0
4 years ago
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