B. 10 Laps
150 + (10 x 30) = 450 M
250 + (10 x 20) = 450 M
Answer:
The correct option is (A).
Step-by-step explanation:
The expression Carey is solving is:

Simplify the expression as follows:


So, in Carey's calculation the third step is incorrect.
Instead of 27 the three-fourth must be multiplied by 36 to get the correct answer.
Thus, the correct option is (A).
A. 3/4 • 7/8 = 21/32 < 7/8
B. 1 1/3 • 9/10 = 2 1/5 > 9/10
C. 3/4 • 7/8 = 21/32 < 7/8
D. 7/8 • 9/10 = 17/20 < 9/10
A is the correct answer.
Answer:
f(x) = -√(x-4) + 2
Step-by-step explanation:
(a) Start with the basic function: f(x) = √x.
This would be the top half of a horizontal parabola opening to the right (always positive).
(b) The range is y < 2. This includes negative numbers, so the function must be f(x) = -√x.
(c) The function starts at x = -4. We must shift it four units to the left. We do that by adding four units to x. The function must be f(x) = -√(x + 4). The domain is x > -4.
(d) The function starts at y = 2. We must shift it up two units. We do that by adding two units to y. The function must be f(x) = -√(x+4) + 2. The range is y < 2.
The figure below is the graph of f(x) = -√(x+4) + 2.