Answer:
C (2, -5/2)
Step-by-step explanation:
To find the midpoint of two points
mid = (x1+x2)/2, (y1+y2)/2
= (2+2)/2, (4+-9)/2
= 4/2, -5/2
=2,-5/2
Answer:
100 sq ft
Step-by-step explanation:
triangle has a base of 25 and a height of 8
A = bh/2
A = 8 x 25 / 2
A = 100
Answer:
Each interior angle of a polygon equals:
180 degrees - (360 / number of sides)
180 - (360 / 6)
= 180 -60
= 120 degrees
http://www.1728.org/polygon.htm
Step-by-step explanation:
You'll first need to calculate the measure of angle R. From the diagram we see that
opp 33
tan R = ------- = ----- = 0.589, so, using the inv. tang. function, R = 0.589 rad.
adj 56
opp 33
Then sin R = --------- = sin 0.589 rad = ------------------------- = 0.508 rad
hyp sqrt(33^2 + 56^2)
or 29.089 degrees
He is incorrect. If you divide 520 by 10 you get 52. He is correct for that answer. But 23.160 divided by 10 is 2.316. NOT 23.10.
