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katrin [286]
2 years ago
11

Systems of equations with graphing

Mathematics
2 answers:
frez [133]2 years ago
5 0
The points intercept at x= -7/5 and y=8/5
OlgaM077 [116]2 years ago
3 0

Answer:

x= negative 1 and 2/5 y=1 and 3/5

Step-by-step explanation:

1. Start by putting both equations into slope-intercept form.  (y=mx+b)

-3x+3y=9

-3x+3x+3y=9+3x

3y=9+3x

3y/3=9+3x/3

y=3+x

2x-7y=-14

2x-2x-7y=-14-2x

-7y=-14-2x

-7y/-7=-14/-7-2x/-7

y=2+2/7x

2. Graph the equations and find where they intercept.

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What is the length of AD (square)
anzhelika [568]

Answer:

5

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3 0
2 years ago
The probability distribution for a random variable x is given in the table. -5 -3 -2 0 2 3 Probability .17 .13 33 16 11 10 Find
IgorLugansk [536]

Answer:

0.79

Step-by-step explanation:

add up the probability that is less than or equal to  0, which is 0.17+0.13+0.33+0.16 = 0.79

5 0
3 years ago
Please help !Suppose that the height in centimeters of a candle is a linear function of them out of time in hours it has been bu
Elan Coil [88]

Answer:

  17.8 cm

Step-by-step explanation:

In the 17 hours between heights of 18.6 cm and 15.2 cm, the candle lost 3.4 cm in height. That is, the height decreased at the rate of ...

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In the 4 hours between 12 hours and 16 hours of burning time, the candle will have changed its height by (4 h)(-0.2 cm/h) = -0.8 cm.

The height at 16 hours of burning is then 18.6 cm -0.8 cm = 17.8 cm.

4 0
3 years ago
Evaluate f(x) = x2 + 1 for f(10).
user100 [1]
F(10) = (10)^2 + 1
= 100 + 1
= 101
8 0
3 years ago
Which is the greater one 9/10 or 3/4?
Hatshy [7]
9/10, 
3/4 = 15/20
9/10 = 18/20
Clearly 9/10 is greater. 
4 0
3 years ago
Read 2 more answers
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