1+2(1)=3. True
-3+2(4) = 5 True
-2+2(2) = 2 False
5 +2(-2) = 1 False
Answer:
A. 0.69
Step-by-step explanation:
We need to use cosine theorem:
c²=a²+b² - 2ab* cos(θ)
c=8, a=7, b=11
8² = 7²+11² - 2*7*11 *cos(θ)
64 = 49 + 121 - 154*cos(θ)
64 - 170 = - 154*cos(θ)
- 106/ (- 154) = cos(θ)
cos(θ) = 0.69
Answer:
D. 35
Step-by-step explanation:
I set up a proportion to solve for x. I divided 14 by 8 to find the ratio. After finding that ratio to be 7/4, I multiplied 7/4 to 20 to get 35 as the answer.
Answer:
put points on (1.5, 0) and (0, -1), then draw a continuous line through them
Step-by-step explanation:
y - 3 = -2/3(x + 6)
y - 3 = (-2/3)x - 4
y = (-2/3)x - 1
0 = (-2/3)x - 1
1 = (-2/3)x
x = 3/2 = 1.5
y = (-2/3)(0) - 1
y = -1
40 (1+2y) is an equivalent expression
