MATH 1030 Walden University College Mathematics Questions

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MATH-1030L-4/MATH-1030-4-College Math-2022-Fall-QTR-Term-wks-1-thru-6-(08/30/2021-10/10/2021)-PT3
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Question 14, 6.1.67
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The maximum heart rate, in beats per minute, that you should achieve during exercise is 220 minus your age, 220-a. Your exercise goal is to improve cardiovascular conditioning. Use the following formulas to answer parts (a)
and (b).
7
Lower limit of range
H=
10 (220-a)
Upper limit of range
H=
(220-a
a. What is the lower limit of the heart range, in beats per minute, for a 25-year-old with this exercise goal?
The lower limit of the heart range is beats per minute.
(Round to the nearest integer as needed.)
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Nickia Rose & 09/04/21 12:20 PM
= Homework: Assignment – Week 1 Homework
Question 15, 6.1.69
Part 1 of 2
HW Score: 64.71%, 55 of 85 points
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The bar graph shows the estimated number of calories per day needed to maintain energy balance for various gender and age groups for sedentary lifestyles. (Sedentary means a Calories Needed to Maintain Energy Balance for Sedentary Lifestyles
lifestyle that includes only the light physical activity associated with typical day-to-day life.) The mathematical model F= -81X2 +653x + 622 describes the number of calories
needed per day, F, by females in age group x with sedentary lifestyles. According to the model, how many calories per day are needed by females between the ages of 4 and 8,
3200 Females
Group 4
Males
Group 5
inclusive, with this lifestyle? Does this underestimate or overestimate the number shown by the graph? By how much?
2409 Group 6
2400- Group 2
2191
Group 1,
1860
2009
17871
1553
Group 3
Calories per Day
1600715
1405
0316821806 1925 199
800-
0-
48
9-13
31-50
51+
14-18 19-30
Age Range
According to the model, how many calories per day are needed by females between the ages of 4 and 8, inclusive, with this lifestyle?
(Type a whole number.)
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Nickia Rose & 09/04/21 12:20 PM
= Homework: Assignment – Week 1 Homework
Question 16, 6.1.93
Part 1 of 4
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Х
0.5x + 7000
A business that manufactures small alarm clocks has weekly fixed costs of $7000. The average cost per clock for the business to manufacture x clocks is described by
a. Find the average cost when x= 100, 1000, and 10,000
b. Like all other businesses, the alarm clock manufacturer must make a profit. To do this, each clock must be sold for at least 50¢ more than what it costs to manufacture. Due to competition from a larger company, the clocks
can be sold for $1.50 each and no more. Our small manufacturer can only produce 2000 clocks weekly. Does this business have much of a future? Explain.
a. The average cost when x = 100 is $
(Type an integer or a decimal.)
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Nickia Rose & 09/04/21 12:20 PM
Homework: Assignment – Week 1 Homework
Question 24, 2.2.67
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Calculate the number of subsets and the number of proper subsets for the given set
{x|XEN and 7