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worty [1.4K]
1 year ago
11

I NEED HELP Which table represents a function?хуA0 4142535x yXolo4B115U AUОсху26374849ху565 | 7D

Mathematics
1 answer:
pogonyaev1 year ago
3 0

A function have just one output (y) for each input (x). A value of x cannot have different corresponding values of y.

Tables B, C and D have differnet values of y (outputs) to a value of x(input), those are not functions.

Table A has one output (y) for each input (x). As you can see the output (y) can be the same for two or more inputs (x). It is a function

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Find sum of -3,2,7,12....,132<br> Arithmetic series
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The sum is 1806.
8 0
3 years ago
Which value of x makes the equation 0.5(x + 15) = 2 + 0.75(x - 4) true?
SIZIF [17.4K]

Answer:

Step-by-step explanation:

\frac{1}{2}(x+15) = 2 + \frac{3}{4}(x-4)

To make this easier, to get ride of the fractions, we can multiply both sides by 4

2(x+15) = 8 + 3(x-4)

now use the distributive property

2x + 30 = 8 + 3x - 12\\

now we want to isolate x to one side and isolate all the constants to the other

2x - 3x = 8 - 12 - 30\\

now simplify

-x = -34\\x = 34

to test, we can plug in back to the original

\frac{1}{2}(34+15) = \frac{49}{2}\\\frac{8}{4} + \frac{3}{4}(34-4) = \frac{8}{4} + \frac{90}{4} = \frac{98}{4} = \frac{49}{2}

it works

7 0
2 years ago
The slope of a given line is 1/3 . What is the slope of a line that is perpendicular to the given line? Type a numerical answer
yulyashka [42]
If slope of the line is 1/3,  then slope of the perpendicular line should be negative reciprocal, and so it is equal -3.
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7 0
3 years ago
mei invests $4667 in a savings account with a fixed annual interest rate of 5% compounded 6 times per year. what will the accoun
jek_recluse [69]

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5 0
2 years ago
A food scientist takes a random sample of 25 cereals in order to test the claim that the mean fiber content is less than 2.5 gra
Jlenok [28]

Answer:

Choice A: there is insufficient evidence to conclude that the mean for the fiber content is less than 2.5 gms.

Step-by-step explanation:

From the graphs given the more appropriate is one sample t- test

One sample t- test is used and the results are

Hypothesis Test                       Fiber

Sample Mean                          2.62

Sample St. Dev                       3.492

Degrees of Freedom              24

t- test statistic                         0.1718

p- value                                    0.5675

the critical region for this test at ∝= 0.05 is t < -1.711

There is not enough evidence to reject the null hypothesis.

Since the calculated t=   0.1718 does not fall in the critical region the null hypothesis is accepted that the mean fiber content is not  less than 2.5 grams.T

6 0
3 years ago
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