Answer:
a=-3
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- you can use the pythagorean theorem for this.
a^2 + b^2 = c^2
12^2 + 16^2 = c^2
144 + 256 = c^2
400 = c^2
- square root this.
c = 20
therefore, x = 20.
so option C.
Answer:
The answer is 10⁴ × 4⁵.
Step-by-step explanation:
First, you can seperate the fraction :


Next, you have to apply Indices law :

So for this question :



I think the answer in this case would be D
Answer:
30
Step-by-step explanation:
9 + 9 + 6 + 5 + 1 = 30