1.
The distance you can see to the horizon can be estimated by using the formula
. In the formula,
d
represents the distance you can see in miles, and
h
represents the height your eyes are from the ground in feet. Suppose when you are standing on the ground your eyes are about 4.1 feet above ground level. About how far can you see to the horizon?
A.
1.22 miles
B.
2.47 miles
C.
9.76 miles
D.
4.88 miles
Hint
2.
The formula
gives the minimum speed
s
of a car in miles per hour, where
d
is the distance in feet the car skidded after its brakes were applied and
f
is a drag factor that depends on the road surface. A car left skid marks for 80 feet on a dry, concrete road surface with a drag factor of 0.82. Find the minimum speed to the nearest mile per hour.
A.
48 miles per hour
B.
44 miles per hour
C.
42 miles per hour
D.
46 miles per hour
Hint
3.
Estimate the solution of
to the nearest whole number.
A.
9
B.
11
C.
10
D.
12
Hint
4.
Estimate the length of a side of a square whose area is 262 in
2
.
A.
16 in.
B.
17 in.
C.
18 in.
D.
15 in.
Hint
5.
Estimate
.
A.
27
B.
25
C.
24
D.
26
Hint