Answer:
cos0 = 1
cos90 =0
so a for the first one and d for the other
Answer: Mark brainliest if satisfied
m<B=72 degrees
m<C= 36 degrees
Step-by-step explanation:
m<B is congruent to m<A
72 times 2 equals 144
180 minus 144 equals 36
Answer:
y = 4x+3
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Explanation:
use the slope formula first
m = (y2-y1)/(x2-x1)
m = (-1-3)/(-1-0)
m = (-4)/(-1)
m = 4
The slope is m = 4
The y intercept is b = 3 because this comes from the point (0,3)
The x value is always 0 for the y intercept. This is where the graph crosses the y axis
Since m = 4 and b = 3, we go from y = mx+b to y = 4x+3
Answer:
n = -33
Step-by-step explanation:
Let n = number
Sum of a number and 9
(n+9)
is tripled
3(n+9)
the result is six less then twice the number
2n-6
3(n+9) = 2n-6
Distribute
3n+27 = 2n-6
Subtract 2n from each side
3n-2n +27 = -6
n +27 = -6
Subtract 27 from each side
n+27-27 = -6-27
n =-33
C, 16cm. Count along the edges for the number of lines.
