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allsm [11]
2 years ago
14

Find the value of x. Show work.

Mathematics
1 answer:
ivanzaharov [21]2 years ago
6 0

Answer:

x=8

Step-by-step explanation:

The two angles are alternate interior angles. This means that they are equal to each other.

8x-12=3x+28

5x=40

x=8

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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
2 years ago
Kyle and josh have a total of 64 CDs. Kyle has 12 mote than josh. How many CDs does each boy have?
Alecsey [184]
26 for Josh and 5th for kyle
5 0
3 years ago
Given x=5 + √16 , select the value(s) of x. -11 1 9 21
Schach [20]

Answer:

The answers would be 9 and 1.

Step-by-step explanation:

x= 5±√16 can be separated into two equations.

x=5+√16 and x=5-√16

1. 5+√16 can be solved by simplify √16, which is 4. So then it would become   5+4 which equals 9.

2. 5-√16 can be solved by simplifying √16 which is 4. So then it would become 5-4 which equals 1.

So the values of x are 9 and 1.

6 0
3 years ago
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Which of the following statements correctly describes the items shown below?<br> Y=-6x+7
viva [34]

Answer:

where is the option??

Step-by-step explanation:

I dont see any options but I can say that -6x is the slope and +7 is the y-intercept

8 0
2 years ago
Please help me........
Kobotan [32]

Answer:

dkdkdkdjdjd

Step-by-step explanation:

3 0
2 years ago
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