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Viktor [21]
2 years ago
12

STOP SENDING ME LINKS BUT I NEED HELP RN

Mathematics
1 answer:
Strike441 [17]2 years ago
6 0
45
1080 divided by 24
45

45 5lbs per hour
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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

7 0
3 years ago
Evaluate the expression for x = 15.<br> X - 5 =
soldier1979 [14.2K]

Steps to solve:

x - 5 for x = 15

~Substitute

15 - 5

~Subtract

10

Best of Luck!

4 0
3 years ago
Read 2 more answers
Calculate the value of x. Make sure to include units. *
SIZIF [17.4K]

Hey! jeny.

︎⠀⠀⠀⠀⠀⠀⠀⠀⠀How are you?

3 0
2 years ago
The differencee of 3 times a number and 18 is 39
Bingel [31]

Answer:

3x-18 = 39

3x = 57

x = 19

(3*(19))-18 = 39

57-18 = 39  

3x-x+2=4

Step-by-step explanation:

hope it help

7 0
3 years ago
Which graph represents y=x-5?​
elena-s [515]
Can uu show the rest of the graph??????
3 0
2 years ago
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