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Alinara [238K]
3 years ago
10

If m 1=(7x-19), and m 2=(x+5), find m 2

Mathematics
1 answer:
shutvik [7]3 years ago
3 0
The value of m2 is 1/7(m1 + 54)
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9x+5y=8<br> 3x–y=4<br> what is the y-value of the solution to the system?
CaHeK987 [17]

Answer:

y=7.51

Step-by-step explanation:

First, you have to simplify one of the equations down

3x-y=4

y=-4+3x

Second, you insert the value of y into the other equation and then solve for x

9x+5(-4+3x)=8

9x-20+15x=8

24x=28

x=1.17

Last, insert the value of x into the original equation and then solve for y

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y=7.51

3 0
3 years ago
Given this unit circle, what is the value of x? (x, -7/10)(1,0)​
Paraphin [41]

Answer:

x = - \frac{\sqrt{51} }{10}

Step-by-step explanation:

the equation of a circle centred at the origin is

x² + y² = r² ( r is the radius )

The radius of a unit circle is r = 1

substitute (x, - \frac{7}{10} ) into the equation and solve for x

x² + (- \frac{7}{10} )² = 1²

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x² = 1 - \frac{49}{100} = \frac{51}{100} ( take square root of both sides )

x = ± \sqrt{\frac{51}{100} } = ± \frac{\sqrt{51} }{10}

since the point is in the 3rd quadrant then x < 0

x = - \frac{\sqrt{51} }{10}

5 0
2 years ago
Math help please! Thanks so much!
suter [353]
According do what i came up with. after 3 hours train (A) should be 150 miles out towards Smithville, while Train (B) will be 180 miles out towards Westtown. Its best to graph this out to better understand. so 330/2 = 165, so thats your half way point. use this to determine how far train (A) is from SV compared to train (B)s distance to WT. After 3 hours you can see at 180 miles out Train (B) will be crossing paths with Train (A) at 150 miles. So the answer would be 3 hours  
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(7 + (-3) - 4) ÷ ( ( -7) x ( 2- (-6) ) )<br><br>Please show work!
kotegsom [21]

Answer:

The answer is attached to the picture

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3 years ago
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iogann1982 [59]

Answer:

(5.40/100)*115 = 6.21 - 5.40 = 0.81 cents

Step-by-step explanation:

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