Hello :
<span>(sin x)(cos x) = 0
sinx = 0 or cosx= 0
all solutions in : R
1) sinx= 0 : x = k</span>π...... k<span>∈ Z
2) cosx= 0 : x= </span>π/2 + kπ ....k∈ Z
Answer: $18.00
Step-by-step explanation:
Sales tax:
5%=0.05
15(0.05)=0.75
Tip:
15%=0.15
15(0.15)=2.25
Total:
15+0.75+2.25=18
The x-coordinate of the vertex is precisely halfway between the given roots 2 and 4; thus, x = (2+4)/2, or x=3. The y-coordinate is the value of the function at this x=3.
We can actually determine the equation of this quadratic from the zeros:
f(x) = (x-2)(x-4), or f(x) = x^2 - 6x + 8. To find the y-coord. of the vertex,, subst. 3 for x in f(x) = x^2 - 6x + 8: f(3) = 3^2 - 6(3) + 8 = 9 - 18 + 8, or -1. Then we know that the vertex is at (3, -1).
Answer:
B -4/5
Step-by-step explanation:
The slope of line D is given by
m = (y2-y1)/(x2-x1)
= (6-1)/ (5-1)
=5/4
We want the slope of the line perpendicular
That would be the negative reciprocal
- (4/5)
That triangle would be right triangle. :) :)
HAPPY TO HELP
