Answer:
A
Step-by-step explanation:
Using the cosine ratio in the right triangle and the exact value
cos45° = , then
cos45° = = = ( cross- multiply )
s × = 4 ( divide both sides by )
s = 4 → A
Answer:
x=-2
Step-by-step explanation:
2+3x=-20-8x
22=-11x
x=-2
About 2.5 mph I think????
I think I'm right. If I'm not, correct me.
7-x since 49 - x² is (7-x)(7+x) therefore the length is 7-x
Answer:
(-2,-3)
Step-by-step explanation: