b
Step-by-step explanation:
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Answer:
8/11 minutes
Step-by-step explanation:
To find the time, divide the quantity by the rate:
(200 rev)/(275 rev/min) = (200/275) min = 8/11 min
The wheel rotated for 8/11 minutes.
Approximately divide the region into 10 vertical strips, each with width of about 1. Next, estimate the y-coordinates of the top and bottom of each strip of this region. For example, the 1st strip stretches from approx. 2 1/4 at the bottom to approx. 2 1/4 at the top, so the total length of this strip is about 4 1/2. Since the area is (width)(height), and the width is approx. 1, the area is (4 1/2)(1) = 4 1/2.
2. Approximate the area of each of the remaining 9 strips.
3. Sum up your 10 approx. areas.
Answer:
Shifted right 6 units.
Step-by-step explanation:
can be written as a squared binomial since it is of the form:
which can be written as
.
When comparing the expression to the trinomial just mentioned it should be noted that
is -6. So
can be written as:
.
Note: Vertex form of a quadratic is
where (h,k) is the vertex.
The vertex of the parent is (0,0) and the vertex of
is (6,0). So the parent has shifted right 6 units to get to where
is located.