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OverLord2011 [107]
3 years ago
13

You are interested in determining which of two brands of light bulbs, brand A and brand B, lasts longer under differing conditio

ns of use. Fifty Bovano lamps are fitted with brand A light bulbs and 50 Bulbrite lamps are fitted with brand B light bulbs. Each light bulb is left on for 20,000 hours straight. Light bulb life is then measured for each bulb, and the average light bulb life for the two brands is compared. What is wrong with this experimental design?
Nothing is wrong with this design.
The type of lamp is a confounding variable.
Not enough light bulbs of each type are used in the study.
The experiment should have been conducted on more than two brands of lamps.
Mathematics
2 answers:
bulgar [2K]3 years ago
7 0

Answer:

The type of lamp is a confounding variable.

Step-by-step explanation:

to test the average life of the bulbs the same lamps should be used

Fofino [41]3 years ago
5 0

Answer:

The answer would be A. 1 1/5

Hope this helps!!!

Step-by-step explanation:

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vagabundo [1.1K]
He bought 5
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4 0
3 years ago
Are the following functions linear or nonlinear?
exis [7]

Answer:

The chart is linear, the graph is not.

Step-by-step explanation:

Because the graph is curved and not straight, it is non-linear. You can also tell that this is non-linear because the rate of change, or slope, is inconsistent. The chart is linear because it has a consistent slope. I hope this helps, have a nice day. :-)

8 0
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(Writing to Explain) There are 12 plots in a community garden. What Information do you need to know if you wanted to know how mu
USPshnik [31]
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3 0
3 years ago
Find the equation, in point-slope form, of the line that passes -3 and passes through the point (1,2). plz show your work.
Maslowich
Substitute the given values for the parameters in the point-slope form of the equation of a line. That form is
  y - k = m(x - h)
for point (h, k) and slope m.

You have (h, k) = (1, 2) and m=-3, so your equation is
  y - 2 = -3(x - 1)
4 0
3 years ago
Which of the following are examples of irrational numbers? select all that apply.​
Klio2033 [76]

Answer:

The second one because 5 is not a perfect square root.  The third one because 24 is not a perfect square. Also the last one. Their all irrational because you don't know what is coming next.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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