170? I think. I don't really understand your question
Answer:
a) 8 x 10^3 or 8000
b) 8 x 10^-2 or .08
Explanation: Refer to a guide on rounding sig figs
Answer: I think the answer is 22.5
Step-by-step explanation:
32 + 13 = 45
45/2 = 22.5
First you would add the two sums together then depending on how many you are adding ( like 2 because there are 2 numbers there) you would divide by that number.
I have answered this question
<span>3. If two row interchanges are made in succession, then the new determinant equals the old determinant</span>
If the breadth is x and the length is 2x, we know that the perimeter is 2x + x + 2x + x = 48. Which means 6x = 48 so x = 8
Now we can find the surface area because the length is 2x so we substitute the 8 in and we get the length to be 16, and the breadth to be 8 (because breadth = x and x = 8)
Total area = length x width = 16 x 8 = 128
