Answer:
Step-by-step explanation:
6. 78-2(3+16) /4
(78-2x19)/4
( 78 -38)/4
40/4=10
7.
(66/11)3 -6*8
6x6x6 -48
216-48=168
8.
10/7+2(8-11/2)
10/7+2(8-5.5)
10/7+2*2.5
10/7+5
10/7 + 35/7
45/7 =
Answer:
58
Step-by-step explanation:
because sum of complementary angles is 90°
Answer:
55.7 in.
Step-by-step explanation:
I assume the figure is a rectangle and a half circle.
The three sides of the rectangle that need to be added toward the perimeter measure 15 in., 10 in., and 15 in.
Then you need the circumference of the half circle which has a 10-inch diameter.
circumference = (pi)d
circumference = 3.14 * 10 in. = 31.4 in.
We only need half the circumference, so we have 31.4 in./2 = 15.7 in.
Now we add the three sides of the rectangle listed above and the circumference of the half circle.
perimeter = 15 in. + 10 in. + 15 in. + 15.7 in.
perimeter = 55.7 in.
Answer:
Step-by-step explanation:
Convert rectangle (x , y) to polar coordinates ( r , θ)
a) converts (9, 0) to polar coordinates ( r , θ)
b) Convert 
to polar coordinates ( r, θ)
c) converts (-5, 5) to polar coordinates ( r , θ)
d) converts (-1, √3) to polar coordinates ( r , θ)
Answer:
63 it's the closest
Step-by-step explanation:
