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GaryK [48]
1 year ago
13

Does the graph represent a function? Why or why not?

Mathematics
1 answer:
Alex Ar [27]1 year ago
6 0

Answer:

D.

Step-by-step explanation:

Yes, because it passes the vertical line test.

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A company has determined that it must increase production of a certain line of goods by 112 times last years production. The new
liraira [26]

Answer: 26 items

Step-by-step explanation:

Let x denotes the last year's output.

Given : A company has determined that it must increase production of a certain line of goods by 112 times last years production.

The new output will be 2885 items.

According to the above statement we have the following equation :-

112x=2885

Divide both sides by 112, we get

x=25.7589285714\approx26

Hence, the  last year's output =26 items

3 0
4 years ago
The question is in the picture PLEASE HELP ME!!! idk how to do this
IrinaVladis [17]

Answer:

35

Step-by-step explanation:

Put the numbers in the formula and do the arithmetic.

nCk = n!/(k!(n -k)!)

7C3 = 7!/(3!(7-3)!) = 7·6·5/(3·2·1) = 7·5 = 35

_____

It is convenient to use the largest of the factorials in the denominator to cancel as many factors as you can from the numerator, then cancel factors from the remaining numbers. Here after canceling 4! = 4·3·2·1 from the numerator, we are left with 7·6·5 divided by 3! = 3·2·1 = 6. Obviously, this will cancel the 6 in the numerator product, leaving only 7·5 = 35.

Some graphing and/or scientific calculators will have this function built in.

5 0
3 years ago
A consumer advocacy group tested the "on-air" lifetimes a random sample of 241 cell phone batteries. The mean lifetime was 3.2 h
snow_tiger [21]

Using the Empirical Rule, it is found that 229 batteries have lifetimes between 3.0 hours and 3.4 hours.

--------------------------

By the Empirical Rule, in a normal variable: 68% of the measures are within 1 standard deviation of the mean, 95% are within 2 and 99.7% are within 3.

--------------------------

  • Mean of 3.2 hours with a standard deviation of 0.2 hours.

3 = 3.2 - 2(0.1)

3.4 = 3.2 + 2(0.1)

  • Thus, between 3 and 3.4 hours is <u>within 2 standard deviations of the mean</u>, which is 95%.
  • Out of 241 batteries: 0.95(241) = 229

229 batteries have lifetimes between 3.0 hours and 3.4 hours.

A similar problem is given at brainly.com/question/24552083

4 0
3 years ago
Complementary angles must be acute true or false
densk [106]
True  because their sum is 90 degrees.
8 0
4 years ago
Read 2 more answers
A)Three out of my four brothers play soccer. What percent of my brothers do not play soccer?
exis [7]
A. 1)25%
B. 2)7
C. 3)48
7 0
4 years ago
Read 2 more answers
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