Application Exercises The maximum heart rate, in beats per minute, that yon should achieve during exercise is 220 minus your age: 220 - a. This algebraic expression gives maximum heart rate in terms of age, a. The following bar graph shows the target heart rate ranges for four types of exercise goals. The lower and upper limits of these ranges a re fractions of the maximum heart rate, 220 - a. Exercises 129 -130 are based on the information in the graph. If your exercise goal is to improve overall health, the graph shows the following range for target heart rate, H , in beats per minute: Lower limit of range H = 1 2 ( 220 − a ) Upper limit of range H = 3 5 ( 220 − a ) . a. What is the lower limit of the heart rate range, in beats per minute, for a 30-year-old with this exercise goal? b. What is the upper limit of the heart rate range, in beats per minute, for a 30-year-old with this exercise goal?
Application Exercises The maximum heart rate, in beats per minute, that yon should achieve during exercise is 220 minus your age: 220 - a. This algebraic expression gives maximum heart rate in terms of age, a. The following bar graph shows the target heart rate ranges for four types of exercise goals. The lower and upper limits of these ranges a re fractions of the maximum heart rate, 220 - a. Exercises 129 -130 are based on the information in the graph. If your exercise goal is to improve overall health, the graph shows the following range for target heart rate, H , in beats per minute: Lower limit of range H = 1 2 ( 220 − a ) Upper limit of range H = 3 5 ( 220 − a ) . a. What is the lower limit of the heart rate range, in beats per minute, for a 30-year-old with this exercise goal? b. What is the upper limit of the heart rate range, in beats per minute, for a 30-year-old with this exercise goal?
Solution Summary: The author explains that the lower limit of heart rate during exercise for a 30-year-old is 95 beats per minute.
The maximum heart rate, in beats per minute, that yon should achieve during exercise is 220 minus your age:
220 - a.
This algebraic expression gives maximum heart rate in terms of age, a.
The following bar graph shows the target heart rate ranges for four types of exercise goals. The lower and upper limits of these ranges are fractions of the maximum heart rate, 220 - a. Exercises 129-130 are based on the information in the graph.
If your exercise goal is to improve overall health, the graph shows the following range for target heart rate, H, in beats per minute:
Lower limit of range
H
=
1
2
(
220
−
a
)
Upper limit of range
H
=
3
5
(
220
−
a
)
.
a. What is the lower limit of the heart rate range, in beats per minute, for a 30-year-old with this exercise goal?
b. What is the upper limit of the heart rate range, in beats per minute, for a 30-year-old with this exercise goal?
10-2
Let A =
02-4
and b =
4
Denote the columns of A by a₁, a2, a3, and let W = Span {a1, a2, a̸3}.
-4 6
5
- 35
a. Is b in {a1, a2, a3}? How many vectors are in {a₁, a₂, a3}?
b. Is b in W? How many vectors are in W?
c. Show that a2 is in W. [Hint: Row operations are unnecessary.]
a. Is b in {a₁, a2, a3}? Select the correct choice below and, if necessary, fill in the answer box(es) to complete your
choice.
○ A. No, b is not in {a₁, a2, 3} since it cannot be generated by a linear combination of a₁, a2, and a3.
B. No, b is not in (a1, a2, a3}
since b is not equal to a₁, a2, or a3.
C. Yes, b is in (a1, a2, a3} since b = a
(Type a whole number.)
D. Yes, b is in (a1, a2, 3} since, although b is not equal to a₁, a2, or a3, it can be expressed as a linear
combination of them. In particular, b =
+
+
☐ az.
(Simplify your answers.)
14
14
4. The graph shows the printing rate of Printer A. Printer B can
print at a rate of 25 pages per minute. How does the printing
rate for Printer B compare to the printing rate for Printer A?
The printing rate for Printer B is
than the rate
for Printer A because the rate of 25 pages per minute
is
than the rate of
for Printer A.
pages per minute
RIJOUT
40
fy
Printer Rat
Number of Pages
8N WA
10
30
20
Printer A
0
0
246
Time (min)
X
OR
16 f(x) =
Ef 16
χ
по
x²-2 410 | y = (x+2) + 4
Y-INT: y = 0
X-INT: X=0
VA: x=2
OA: y=x+2
0
X-INT: X=-2
X-INT: y = 2
VA
0
2
whole.
2-2
4
y - (x+2) = 27-270
+
xxx> 2
क्
above OA
(x+2) OA
x-2/x²+0x+0
2
x-2x
2x+O
2x-4
4
X<-1000 4/4/2<0 below Of
y
VA
X=2
X-2
OA
y=x+2
-2
2
(0,0)
2
χ
Chapter P Solutions
Mylab Math With Pearson Etext -- 18 Week Standalone Access Card -- For Algebra For College Students
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