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3 years ago

5(x+1)-x=x-1 pls help

Mathematics

2 answers:

allochka39001 [22]3 years ago

6 0

Is it simplifying? if so the answer is 4x+4

elena55 [62]3 years ago

3 0

Answer:

x=-2

Step-by-step explanation:

5(x+1)-x=x-1

5x+5-x=x-1

4x+5=x-1

3x+5=-1

3x=-6

x=-2

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Suppose that an object moves along the y-axis so that its location is y=x2+3x at time x. (Here y is in meters and x is in second

vfiekz [6]

Answer:

a) 13 m/s

b) (15 + h) m/s

c) 15 m/s

Step-by-step explanation:

if the location is

y=x²+3*x

then the average velocity from 3 to 7 is

Δy/Δx=[y(7)-y(3)]/(7-3)=[7²+3*7- (3²+3*3)]/4= 13 m/s

then the average velocity from x=6 to to x=6+h

Δy/Δx=[y(6+h)-y(6)]/(6+h-6)=[(6+h)²+3*(6+h)- (6²+3*6)]/h= (2*6*h+3*h+h²)/h=2*6+3= (15 + h) m/s

the instantaneous velocity can be found taking the limit of Δy/Δx when h→0. Then

when h→0 , limit Δy/Δx= (15 + h) m/s = 15 m/s

then v= 15 m/s

also can be found taking the derivative of y in x=6

v=dy/dx=2*x+3

for x=6

v=dy/dx=2*6+3 = 12+3=15 m/s

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3 years ago

What is an equation with more than one variable called

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4 years ago

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<h3>Base Change Property</h3><h3 />

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See the link below for more about Base Change Property:

brainly.com/question/15318682

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3 years ago

Erick rode his bike at a constant speed. He traveled 36 miles in 1 1/2 hours. Find her unit rate, in miles per hour

galina1969 [7]

Answer:

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4 years ago

5(x+1)-x=x-1 pls help ​

5(x+1)-x=x-1 pls help