Answer:
10.717
Step-by-step explanation:
15.31×0.7 = 10.717
Answer: C
Step-by-step explanation: l-7&!:
Answer:

Step-by-step explanation:
observe
||a–b+c|| = ||a+b+c||
(a-b+c)² = (a+b+c)²
(a+b+c)² – (a-b+c)² = 0
((a+b+c)+(a-b+c))((a+b+c)–(a-b+c)) = 0
(2a+2c)(2b) = 0
(a+c)b = 0
a•b + c•b = 0
||a||×||b||×cos(π/8) + ||c||×||b||×cos(θ) = 0

Answer:
The correct answer is D
Step-by-step explanation:
Answer:
3y+30
Step-by-step explanation: