Answer:
1. 180° ∑triangle angles=180°
2. 2x
3. 52°
Answer:
B
Step-by-step explanation:
3/r=1/y-2/x
3/r=x-2y /xy
Answer:
7/4
Step-by-step explanation:
The slope of the line going through (2,3) and (-2,-4) can be found by:
A) Lining up points
B) Subtracting the numbers vertically
C) Answer: Putting 2nd difference over 1st difference (yes a fraction)
Let's do it!
( 2 , 3)
-( -2 , -4)
--------------
4 7
So the slope is 7/4
Let X be a random variable representing the score of of student.
P(X ≥ 50) = 1 - P(X < 50) = 1 - P(z < (50 - 42)/8) = 1 - P(z < 1) = 1 - 0.84134 = 0.15866
