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nexus9112 [7]
3 years ago
11

Which of these is a ratio table?​

Mathematics
1 answer:
Fittoniya [83]3 years ago
5 0

Answer: last one

Step-by-step explanation:

It's the only one with a solid rate of change

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The heights of the trees for sale at two nurseries are shown below. Heights of trees at Yard Works in feet : 7, 9, 7, 12, 5 Heig
Troyanec [42]

Answer:

The mean of tree heights at Yard Works is 8 feet and at Grow Station is 9 feet.The mean absolute deviation of the tree heights at both yards is 2.

Step-by-step explanation:

1). Height of the trees at Yard Works are = 7,9,7,12,5 feet

So mean height of the trees = (7+9+7+12+5)÷5

                                               = 40÷5 =8 feet

Standard deviation of the trees at Yard works = ∑(║(height of the tree-mean height of the tree))║/(number of trees)

(height of the tree-mean height of the tree)= ║(7-8)║+║(9-8)║+║(7-8)║+║(12-8)║+║(5-8)║ = (1)+1+(1)+4+(3)= 10

Therefore standard deviation = (10)/(5) =2

2). In the same way mean height of the trees at Grow Station=(9+11+6+12+7)/5= 45/5 = 9

Now we will calculate the mean deviation of the tress at Grow Station

= ∑║(height of the tree-mean height of the tree)║/(number of trees)

= ║(9-9)║+║(11-9)║+║(6-9)║+║(12-9)║+║(7-9)║/(5)

= (0+2+3+3+2)/5

= 10/5 =2

Therefore The mean of tree heights at Yard Works is 8 feet and at Grow Station is 9 feet.The mean absolute deviation of the tree heights at both yards is 2.

                                                             

7 0
4 years ago
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Explain whether the graph represents a function
yan [13]

Answer:

your answer will probably be 3.

Step-by-step explanation:

3 0
3 years ago
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Simplify: (–8) • (6) – (5) • (–2)
horrorfan [7]

(–8) • (6) – (5) • (–2)

= (-8*6)-(5*-2)

= (-48)-(-10)

= -48+10

= -38

(–4) • (9) – (5) • (–2)

= (-4*9)-(5*-2)

= (-36)-(-10)

= -36+10

= -26

Evaluate 3(a – 4b) when a = –2 and b = 5.

= 3[-2 - 4(5)]

= 3[-2 -20]

= 3(-22)

= -66

Evaluate 4(a – 3b) when a = –4 and b = 6.

= 4[-4 - 3(6)]

= 4[-4 -18]

= 4(-22)

= -88

Evaluate 5(a – 2b) when a = –3 and b = 5.

= 5[-3 - 2(5)]

= 5(-3 - 10)

= 5(-13)

= -65

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3 years ago
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Please help!!! will mark brainliest!! Hurryyyy
brilliants [131]

Answer:

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Step-by-step explanation:

urzurzjrzirxitxitxitzitzitxktxjfzufjfzjf?jc?hd;! hd_:]μ\=[¿©]¡\÷[§ir

7 0
3 years ago
The Astronomical Telescope shop plans to introduce a new model based on the following information: Rent and utilities per period
dimaraw [331]

Using the profit concept, it is found that the break-even point is of 61.6 units.

  • Profit is given by revenue subtracted by cost.
  • The break-even point is when the revenue is the same as the cost, which means that the profit is zero.

In this problem:

  • Variable cost per unit x of $217, fixed cost of $5,420, thus, the cost equation is given by:

C(x) = 217x + 5420

Selling price per unit of $305, thus, the revenue equation is given by:

R(x) = 305x

The break-even point is the <u>value of x</u> for which:

R(x) = C(x)

Then

305x = 217x + 5420

88x = 5420

x = \frac{5420}{88}

x = 61.6

The break-even point is of 61.6 units.

A similar problem is given at brainly.com/question/4001746

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3 years ago
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