Third quartile=20
median=17
difference=20-17=3
The answer to the question
Answer: D
Step-by-step explanation:
We're given a point (a,b) that happens to be on the unit circle, a²+b²=1, so a is the cosine of the angle θ and b is its sine.
Answer:
Step-by-step explanation:
Q. 17
Verticle angles are congruent
(6x+7) = (8x-17)
-6x from both sides
7 = 2x-17
add 17 to both sides
2x = 24
divide 24 by 2
x = 12
Q. 18
Linear pair = 180
(11x-15) + (5x-13) = 180
11x + 5x - 15 - 13 = 180
16x - 28 = 180
Add 28 to both sides
16x = 208
Divide 16
x = 13
Y = sit ups, x= days
y= 2x + 15
33 = 2x + 15 (subtract 15 from both sides)
18 = 2x (divide both sides by 2)
9 = x, 9 days
