[-2 3] times [2
1]
comes out to -2(2)+3(1) = -1. Eliminate the first answer choice, due to
the presence of that -7 instead of -1.
[-2 3] times [0
-3]
comes out to - 9. This matches answer choices #2, #3 and #4.
[3,-4][2
1]
comes out to 6-4, or 2. Matches #2, #3, #4.
[3, -4][0
-3]
comes out to +12, which matches answer choice #4.
Answer choice #4 is the correct one.
Review matrix multiplication if need be. Feel free to ask questions here and now if need be.
Answer:
18.8496 units (rounded o1ff to four decimal places)
Step-by-step explanation:
Arc length = 2 × π × r × 
r (radius) = 12 units ÷ 2 = 6 units
Central angle = 180°
For our semicircle, the arc length = 2 × π × 6 × 
= 18.8495559215 units
Or 18.8496 units (rounded o1ff to four decimal places)
Answer:
10 pi
Step-by-step explanation:
Since this is a cylinder, we know that the long side of the rectange will go all around the circle. This length is known as the circumference, and the formula of a circle's circumference is pi * diameter. We know the circle's radius is 5, and double that would be the diameter, 10. Therefore, pi * 10 is 10pi, which is ur answer
Answer:
The man traveled 20km by train.
Step-by-step explanation:
If x is the distance he traveled by train, you can write this equation to represent the situation:
Then, you can simply solve for x:
The man traveled 20km by train.
To find out the number of hours per week, we have to divide 24 by 4.
24 ÷ 4 = 6
Monique volunteered 6 hours per week at the animal shelter.
Hope this helps!
