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ankoles [38]
3 years ago
9

I need to find Y=Mx+b. I found M but i forgot how to find B. Help

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
4 0
B is the y-intercept. in this example, b=50
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Juliet rented a car for one day from a company that charges $80 per day plus $0.15 per mile driven. If she was charged a total o
svlad2 [7]

Answer:

B) 120

Step-by-step explanation:

m = miles

$98=$80+$0.15m

$98-$80=$80-$80+$0.15m

$18=$0.15m

$18/$0.15=$0.15m/$0.15

120=m

Juliet drove 120 miles for $98.

(this is a good explanation, I guess)

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3 years ago
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Coterminal angle is an angle which has the same initial and terminal side of the original angle. It can be found by adding or subtracting 360deg.

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3 years ago
5a+2a(5-b)= <br><br> Simplify the expression
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5a+2a(5−b)

Distribute:

=5a+(2a)(5)+(2a)(−b)

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=5a+10a+−2ab

=(−2ab)+(5a+10a)

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6 0
3 years ago
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How do i round <br> $191.2392
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Step-by-step explanation:

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A 5.8-ft-tall person walks away from a 9-ft lamppost at a constant rate of 3.4 ft/sec. What is the rate that the tip of the pers
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Answer:

9.56 ft/sec

Step-by-step explanation:

We are told that a 5.8-ft-tall person walks away from a 9-ft lamppost at a constant rate of 3.4 ft/sec.

I've attached an image showing  triangle that depicts this;

Thus; dx/dt = 3.4 ft/sec

From the attached image and using principle of similar triangles, we can say that;

9/y = 5.8/(y - x)

9(y - x) = 5.8y

9y - 9x = 5.8y

9y - 5.8y = 9x

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y = 9x/3.2

dy/dx = 9/3.2

Now, to find how fast the tip of the shadow is moving away from the lamp post, it is;

dy/dt = dy/dx × dx/dt

dy/dt = (9/3.2) × 3.4

dy/dt = 9.5625 ft/s ≈ 9.56 ft/sec

5 0
2 years ago
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