Answer:
Knowing that thet credit decrease linearly, you can use the equation of a straight line to find the answer
Step-by-step explanation:
We will say that the time is 't', and the remaining money is 'm'.
The equation of an straight line is like this:
(y2-y1)=m*(x2-x1)
Where x2 and x1 are two values of the horizontal axis, y2 and y1 are the image of x2 and x1 in the vertical axis, and m is the slope.
For our problem we will say that 't' is in the horizontal axis and 'm' is in the vertical one, as m decreases with t. So:
(m2-m1)=m*(t2-t1)
Now we can substitute with the two pair of values that we already have to find the slope of the straight line:
(18.90-23.85)=m(74-41)
Once we have got the slope, we can do the same but with another point, as the slope is always the same:
(m3-m1)=m*(t3-t1)
Our third point is the one which t=102min so our incognit will be its image, m3:
(m3-23.85)=m*(102-41)
We have it all but m3, so we can solve it
The angle of depression should be the inverse tangent of 80/120, which is about 34 degrees.
There are 24 inches in 2 feet. There are 12 inches in 1 foot. So 12 x 2 is 24.
Happy studying ^-^
Answer:
A: 15%
Step-by-step explanation:
First test:
15 ÷ 20 = 0.75
0.75 * 100 = 75%
Second Test:
18 ÷ 20 = 0.9
0.9 * 100 = 90%
90% - 75% = 15%
Answer:
Mean: For this case would be not useful since in the stem leaf plot is difficult to find this measure with this chart
Step-by-step explanation:
We want construct a stem and leaf plot and we want to find the measure least useful.
And for this case if we analyze the option we have:
Range: That very useful and it can be extracted from the stem and leaf plot
Median: It could be easy to find it with the stem leaf plot
Mode: With a stem leaf plot we can find easily the most repeated value
Mean: For this case would be not useful since in the stem leaf plot is difficult to find this measure with this chart
