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NARA [144]
2 years ago
5

Lifetime Fitness charges $90 a month for membership plus $50 per session with a trainer. Which equation can be used to determine

y, the monthly cost, after x number of sessions with a trainer?
Mathematics
2 answers:
Scorpion4ik [409]2 years ago
8 0

Answer:

90+50x=y

Step-by-step explanation:

You can substitute how many sessions there is for x, which is the monthly sessions. Then you will bee able to find x, then y.

Taya2010 [7]2 years ago
7 0

Answer:

50x / 30/x i think

Step-by-step explanation:

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The average monthly rent for a? 1000-sq-ft apartment in a major metropolitan area from 1998 through 2005 can be approximated by
Lunna [17]

Answer:

  t = 1.107

Step-by-step explanation:

Finding the solution using derivatives involves finding the lower zero of the quadratic that is the second derivative of the given function. That second derivative will be ...

  f''(t) = 12(1.6714)t^2 -6(22.45)t +2(62.27)

  = 20.0568t^2 -134.7t +124.54

  = 20.0568(t -3.35796)² -101.619 . . . . rewrite to vertex form

Then f''(t) = 0 when ...

  t ≈ 3.35796 -√(101.619/20.0568) ≈ 1.10706

__

The solution is perhaps more easily found using a graphing calculator to find the peak of the first derivative. (See attached.) It tells us ...

  t ≈ 1.107

1.1 years after the beginning of 1998 is about 1.2 months into 1999.

Rents were increasing most rapidly in early February of 1999.

8 0
2 years ago
Angie baked 100 cookies, and 20 brownies. She wants to split them into equal groups for the bake sale .Each group must have the
densk [106]
20 is the greatest common factor Each group of 20 will have 1 brownie & 5 cookies
6 0
3 years ago
Suppose that the store manager of a small rural pharmacy is doing a linear regression of daily sales of over-the-counter (OTC) d
Doss [256]

Answer:

3.83

Step-by-step explanation:

Mean of x = Σx / n

Mean of x = (14 + 19 + 13 + 6 + 9) / 5 = 12.2

Sum of square (SS) :

(14-12.2)^2 + (19-12.2)^2 + (13-12.2)^2 + (6-12.2)^2 + (9-12.2)^2 = 98.8

Mean of y = Σy / n

Mean of y = (101 + 89 + 48 + 21 + 47) / 5 = 61.2

Σ(y - ybar)² = (101-61.2)^2 + (89-61.2)^2 + (48-61.2)^2 + (21-61.2)^2 + (47-61.2)^2 = 4348.8

df = n - 2 = 5 - 2 = 3

Σ(y - ybar)² / df = 4348.8 / 3 = 1449.6

√(Σ(y - ybar)² / df) = √1449.6 = 38.074

Standard Error = √(Σ(y - ybar)² / df) / √SS

Standard Error = 38.074 / √98.8

Standard Error = 3.83

4 0
2 years ago
2800 ml +2.6 L<br> 2800 ml +2.6 L
Tom [10]

Answer:

10 800 ml

Step-by-step explanation:

I hope this helps :}

5 0
3 years ago
The sky ride at an amusement park spans 4 x 10 feet. Over the course of the day, Anna rode the sky ride 7 times. How many feet d
Furkat [3]
This question tells that the sky ride is a rectangle.
This means the perimeter or the total distance round the figure = 2L + 2B
= 2(4)+ 2(10)
=8+20
=28 feet
Anna rose 7 times
Distance rode= 7(28)
=196 feet
8 0
2 years ago
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