Answer: 
Step-by-step explanation:
FIrst find the square root of 81.
The square root of 81 is 9.
FInd the product of -1 and -3 by multiplying the -1 by -3.
-1 * -3 = 3
next find the square root of 4.
Now it said divide the square root of 81 which is 9 by the difference between 3 and 2 and the difference between 3 and 2 two is 1.
Thos means that the answer will be 9/1.
Answer:
x = 10°
Step-by-step explanation:
ZA + ZB = 90°
50° + 4x = 90°
4x = 90° - 50°
4x = 40°
x = 10°
Converting 18 kilometers to meters.
1 kilometer = 1000 meters
I would use 1000m/1km as a conversion factor.
18 kilometers * 1000m/1km = 18 * 1000m = 18,000m
The km unit cancels out because it is both in the numerator and in the denominator.
The answer is letter A: 0.56mm*0.03937inches/1mm = 0.0220472 inches
You can round it 0.022 inches
