Mathematics, 26.10.2020 22:50 maddyr04
The table and scatterplot show the average heights of girls at different ages.
Average Heights of Girls
Age (years) Height (inches)
0 20.0
2 34.5
4 41.0
6 46.0
8 50.5
10 54.5
The variable x represents age, in years, and y represents height, in inches. According to the scatterplot, which equation best represents the relationship between age and height?
Group of answer choices
y = 0.3x - 7
y = 0.4x - 12
y = 2.5x + 30
y = 3.2x + 25
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Question 21 pts
A U. S. businesswoman visited South Korea. Because the currency exchange rate can vary daily, she recorded the conversion amounts every time she exchanged money. The table shows the points she plotted on a scatterplot.
Exchange Values
U. S. Dollars Korean Won
100 106,500
250 268,750
500 535,000
700 770,000
1,000 1,050,000
To estimate her typical exchange rate, which equation best fits the line between w, Korean Won, and d, U. S. Dollars?
Group of answer choices
w = 535,000
w = 1,700d + 1,048
w = 1,058d + 6,257
w = 1,081d - 55,750
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Question 31 pts
The motion of an object was recorded by measuring the velocity of the object in meters per second at various times, as shown in the table.
Motion of an Object
Time
(seconds) Velocity
(meters per second)
0 6.1
2.1 12.2
5.3 17.4
8.2 26.4
10.0 28.1
12.1 32.8
The scatterplot below was graphed from the data in the table, where t represents the time, and v represents the velocity.
Based on the scatterplot, which equation best represents the relationship between velocity and time?
Group of answer choices
v = 2.19t + 6.7
v = 2.24t + 5.7
v = 2.71t + 6.1
v = 2.90t + 6.1
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Question 41 pts
Lisa collected data on the grams of fat and the grams of carbohydrates in 10 sandwiches at a popular restaurant. The table below represents the data she recorded.
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Group of answer choices
y = 0.5x + 23
y = 23x + 0.5
y = 1.5x + 27
y = 27x + 1.5
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Question 51 pts
For an experiment on evaporation, Ginny filled a water tank. She then measured the level of the water several times to see how much had evaporated. The table below shows the number of centimeters below the top the water was at each given number of days where x represents the number of days and y represents the number of centimeters.
DKMathCA3452_1
What is the slope of the line representing the rate of evaporation?
Group of answer choices
-19
-12
-6
-5
Answers: 3
Mathematics, 21.06.2019 17:30
25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.
Answers: 1
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Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?
Answers: 2
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High school seniors with strong academic records apply to the nation’s most selective colleges in greater numbers each year. because the number of slots remains relatively stable, some colleges reject more early applicants. suppose that for a recent admissions class, an ivy league college received 2851 applications for early admission. of this group, it admitted 1033 students early, rejected 854 outright, and deferred 964 to the regular admission pool for further consideration. in the past, this school has admitted 18% of the deferred early admission applicants during the regular admission process. counting the students admitted early and the students admitted during the regular admission process, the total class size was 2375. let e, r, and d represent the events that a student who applies for early admission is admitted early, rejected outright, or deferred to the regular admissions pool.suppose a student applies for early admission. what is the probability that the student will be admitted for early admission or be deferred and later admitted during the regular admission process?
Answers: 3
Mathematics, 21.06.2019 22:00
Luke wants to reduce the area of his rectangular garden by 1/4 the expression 14/w can be used to represent this change. what is another way to write this expression?
Answers: 1
The table and scatterplot show the average heights of girls at different ages.
Average Heights of G...
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