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olchik [2.2K]
3 years ago
14

The linear regression equation for a data set is y = -1.2x + 23.5, where y represents the number of balloons sold and x represen

ts the week number. Use the equation to predict the number of balloons the store will sell during week 8. Round to the nearest whole number.
A) 73



B) 14



C) 33



D) 96
Mathematics
2 answers:
Illusion [34]3 years ago
6 0
Should be B.
as x represents the week number you simply plug in 8 for X so,
y=-1.2(8)+23.5
y=13.9 that is just 14 then
nevsk [136]3 years ago
3 0
The answer your question is B                                                                  
     Hope this helps
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Median is 8

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Step-by-step explanation:

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How does the graph of y=ax^2+c compare to a graph off y=ax^2?
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How do you simplify 8- (-2)
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Answer:

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4 0
3 years ago
A survey on healthy choices was given to gym members at Work It Out. The results
irina [24]

Answer:

The correct option is 4) 0.72.

Step-by-step explanation:

Consider the provided information.

Let us consider that there are 100 members.

(Note: you can take any number the answer will remain the same.)

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90% of 100 is 90.

Thus, 90 members drank protein shake.

Of the members who drank   protein shakes, 30% took weight-loss medication.

30% of 90 is 27.

That means 27 out of 90 took weight loss medication.

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Only 10% of members  who did not drink protein shakes took weight-loss medication.

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Thus the required table is:

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Doesn't Drank shakes          1                      9                        10

Total                                      28                   72                     100

Now we need to find the probability that a gym member does not take weight-loss medication.

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5 0
3 years ago
(Multiple Choice Worth 4 points)
fgiga [73]
<u>Rectangle A</u>
P = 2l + 2w
P = 2(3x + 2) + 2(2x - 1)
P = 2(3x) + 2(2) + 2(2x) - 2(1)
P = 6x + 4 + 4x - 2
P = 6x + 4x + 4 - 2
P = 10x + 2
<u>
Rectangle B</u>
P = 2l + 2w
P = 2(x + 5) + 2(5x - 1)
P = 2(x) + 2(5) + 2(5x) - 2(1)
P = 2x + 10 + 10x - 2
P = 2x + 10x + 10 - 2
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<u>Rectangle B - Rectangle A</u>
(12x + 8) - (10x + 2)
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2x + 6

The correct answer is B.
5 0
3 years ago
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