Answer:
Step-by-step explanation:
r=3 cos 5∅
change ∅ to -∅
r=3cos(-5∅)=3 cos (5∅)
so it does not change.
Hence it is symmetric to x-axis.
change r to -r
-r=3 cos 5∅
or r=-3 cos 5∅
so eq. changes .
Hence it not symmetric to y-axis.
The correct answer would be 42.50
Work:
50 divided by 100 = .5
.5 * 15 = 7.5
50 - 7.5 = 42.50.
Answer:
g=4
Step-by-step explanation:
-6g + 36 = 12
-36 = -36
-6g = -24
------ -------
-6 -6
g=4
Answer:
D = 25
Step-by-step explanation:
For 2 lines to be parallel, they must have the same sloe;
Given the coordinates (-2,4)and (5,D)
Slope = D-4/5-(-2)
Slope = D-4/5+2
Slope = D-4/7
Given the equation y = 3x + 4, comparing to y = mx+b
mx = 3x
m = 3
Hence the slope is 3
Equating the slopes
D-4/7 = 3
D-4 = 3*7
D-4 = 21
D = 21+4
D = 25
Hence the value of D is 25
Answer: 0
Step-by-step explanation:
So the slope of a line is equal to rise over run, or the change in x over the change in y. We can solve for the change in x and the change in y by finding their differences. For the math, we use the formulas y2 - y1/x2 - x1. Filling in this formula we get, (5-5)/(3-13), which is equal to 0/10. Because 0 divided by anything is 0, the answer here is 0.
