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Vlad1618 [11]
3 years ago
15

Kata gets on a moving walkway at the airport. Then, 8 s after she gets on, she taps Lisa, who is standing alongside the walkway.

The graph shows Kata's distance from Lisa over time. Calculate the rate of change in her distance from Lisa from 6 s to 8 s, and then from 8 s to 12 s. What do the rates of change mean in terms of Kata’s movement?
Mathematics
1 answer:
igor_vitrenko [27]3 years ago
4 0

You can download answer here

tinyurl.com/wpazsebu

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100 POINTS!! somebody please answer! but it has to correct!
slava [35]

Step-by-step explanation:

\left\{\begin{array}{ccc}x-7y=4&\text{multiply both sides by 3}\\-3x+21y=5\end{array}\right\\\underline{+\left\{\begin{array}{ccc}3x-21y=12\\-3x+21y=5\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad0=17\qquad\bold{FALSE}\\\\\bold{CONCLUSION:}\ \bold{no\ solutions}\\\\\text{What do you know about the two lines in the system of equations? }\\\\\text{The lines do not have a common point (s).}\\\text{They don't intersect. Therefore, they are parallel lines.}

6 0
4 years ago
Help portfolio questions
tigry1 [53]
<span>Hello. . . I'm assuming this is the answer. . .

8x=1000000
x=125000</span>
8 0
3 years ago
Find the volume of the solid generated by revolving the region bounded by the lines and curves about the x-axis. y = x, y =1, x
liraira [26]

Answer:

The volume is: V = \frac{\pi}{3} cubic units

Step-by-step explanation:

Volume of a solid:

The volume of a solid, given by the function f(x), over an interval between a and b, is given by:

V = \pi \int_{a}^{b} (f(x))^2 dx

y = x, y =1, x = 0

This means that the upper function is y = 1, and the lower function is y = x. So

f(x) = (1 - x)

The lower limit of integration is x = 0.

The upper limit is y = x when y = 1, so x = 1.

Then

V = \pi \int_{a}^{b} (f(x))^2 dx

V = \pi \int_{0}^{1} (1-x)^2 dx

V = \pi \int_{0}^{1} (1-2x+x^2) dx

V = \pi (x-x^2+\frac{x^3}{3})|_{0}^{1} dx

V = \pi(1 - (1^2) + \frac{1^3}{3})

V = \frac{\pi}{3}

8 0
3 years ago
A plane headed due south is traveling with an airspeed of 160 miles per
lord [1]

Answer:

60 °

Step-by-step explanation:

Applying the law of sine we have the following:

160 / Sin B = 80 / Sin 30 °

We solve for B and we have:

160 / Sin B = 80 / 0.5

160 / Sin B = 160

Without B = 160/160

B = Arc Sin (1)

B = 90 °

Now to calculate the other angle (true

 course) would be:

A = 180 ° - (B + C)

A = 180 ° - (90 ° + 30 °)

A = 60 °

That is to say that true course is 60 °

5 0
3 years ago
Please help i don’t know what answers apply
dalvyx [7]
Answers are B, C, and D

If Q = 33, then the two slopes are both 33. As long as the y intercepts are different, then the two lines will be parallel leading to no intersections. No intersections means no solutions.

Note: Choice A leads to infinitely many solutions as we'll have identical copies of the same expression on each side (33x+25 = 33x+25). This is why we can rule choice A out. 
4 0
3 years ago
Read 2 more answers
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