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Arturiano [62]
3 years ago
7

10 laps around a track is 400 meters, how long does it take to run 12 kilometers

Mathematics
1 answer:
Pepsi [2]3 years ago
6 0
HOPE THIS HELPS LOL
SORRY IF MY HANDWRITING IS BAD

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The square of a number consists of digits 0, 2, 3, 5. Find the number.
ladessa [460]

Answer: 55

Square: 3025

55^2 = 3025

7 0
3 years ago
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Determine if the equations are parallel perpendicular or neither 10x-2y=16 and x+5y=-20
Inessa [10]

Answer:

perpendicular lines

Step-by-step explanation:

First, put both equations into slope-intercept form.

Lets start with 10x - 2y = 16

Remember that the slope intercept formula is y = mx + b

So, we must get y alone on one side.

First, subtract 10x from both sides

10x - 2y = 16

-2y = -10x + 16

Now, divide both sides by negative 2

y = 5x - 8

Now for our second equation.

First we must subtract x from both sides

x + 5y = -20

5y = -x - 20

Now, divide both sides by 5

y = -1/5x - 4

Now, both of our equations are in slope-intercept form

Here's how to determine if two equations are parallel or perpendicular

<em>Remember that the m in y = mx + b is our slope</em>

Parallel = same slope

Perpendicular = negative reciprocal slope

(ex: take the number 6                             take the number -3

negative reciprocal = -1/6                        negative reciprocal = 1/3)

If we look at the slopes in both of our equations, we see that there is a negative reciprocal slope (the slopes are 5 and -1/5)

So, these two lines are perpendicular. :)

3 0
3 years ago
If y varies inversely as x and x = 9 when y = 45 , find x when y = 9 .
Harman [31]
I believe it's 1.8, but correct me if I'm wrong.
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3 years ago
Please help me I will give you the brain thing and extra points. (image below) 17/30
AURORKA [14]

Answer:

c

Step-by-step explanation:

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A. 4x b. 3y c. 8p is the answer
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