<h2>a. Answer:</h2>
For this question we'll use the following method:
1. Let's subtract old value from new value
185$-160$ = -25$
The negative value implies that the price has decreased
2. Divide the result by the old value
25$/185$ = 0,1351
3. Convert this value to percentage:
0,1351 x 100 = 13,51%
Finally, by rounding to the nearest tenth:
13,5%
That means 13,5% decrease
<h2 /><h2>b. Answer:</h2>
1. Let's subtract old value from new value
77$-56$ = 21$
The positive value implies that the price has increased
2. Divide the result by the old value
21$/77$ = 0,2727
3. Convert this value to percentage:
0,2727 x 100 = 27,3%
Finally, by rounding to the nearest tenth:
27,3%
That means 27,3% increase
Find the mode from the given data a, c, b, b, a, c, a, b, c, a, c
anygoal [31]
Lets write the repeatations
- a=4times
- b=3times
- c=4times
a=c.
Hence this data has no mode.
For this problem, we are given the graph of an ellipse, and we need to determine its expression in the standard form.
The standard equation of an ellipse is given below:
Where (h,k) is the center of the ellipse, a is the horizontal radius and b is the vertical radius.
The center of the ellipse on our problem is (-2,2), the vertical radius is 2 and the horizontal radius is 3. We have:
In order to calculate the Foci, we need to first find the eccentricity of the ellipse, which is given by the following formula:
The coordinates of the foci are given by:
The coordinates for the foci are: (-2-sqrt(5), 2) and (-2+sqrt(5), 2).
15 books, because it asked for DIFFERENT books not the same. Just take the same book away from each individual child and add the rest and it equals 15.
Answer:
0
Step-by-step explanation: