8^(-1-3+1) = 8^-3
answer is
B. the sum of the exponents is -3
D. the value of the expression is 1/512
E. an equivalent expression is 8^7*8^-10 (answer will be 8^-3)
The line would start at the bottom of the distance versus time graph and start to move up at a constant speed (straight diagonal line) for 4 minutes then there would be a straight horizontal line representing the time she was not moving, so 3 minutes. Then another straight diagonal line representing her walking for 2 minutes after talking to Maria.
Answer:
C. =
Step-by-step explanation:
Note the conversion for Yard to Feet.
1 yard = 3 feet.
In this case, it is given to you that there are 4 yards. Multiply 4 with 3 to get the amount of feet:
4 yd x 3 ft per yd = 12 feet per 4 yd.
12 ft. = 12 ft., ∴ 4 yd. = 12 ft.
Answer:
(d)
Step-by-step explanation:
Given
Required
The intercepts
The x intercepts are where the graph crosses x axis.
From the attached plot, they are:
and 
These represent the start and end of the ball that is launched.
Hence, (d) is true
