Answer:
x = 4
Step-by-step explanation:
a = i-2j
b = 2i-xj
1 = k•2
-2 = k•(-x)
=> 1/2 = k
=> (-2)/(-x) = k
=> 1/2 = (-2)/(-x) => 1/2 = 2/x => x = 4
Answer:look at step by step
Step-by-step explanation:how do I post questions and I’ll help you
Answer:
75
Step-by-step explanation:
The mode is the number that appears most often. Because 75 appears twice and the other numbers only appear once, it is the most used number.
5x^2 - 80 = 0
5x^2 = 80
x^2 = 80/5
x^2 = 16
x = sqrt 16
x = (4,-4) <===
