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4 years ago

For the following functions, (a) describe the domain and range, and (b) sketch the graph.

Mathematics

1 answer:

Yuki888 [10]4 years ago

7 0

(b)x-axis will be x and y-axis will be f(x)=(1/2)^x(-3) on the graph shown above.
(a)Domain:(-∞,∞)
Range:(0,∞)

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you flip a coin and spin a spinner. the spinner has 5 equal sections labeled 1,2,3,4,5. What is the theoretical probability of g

Troyanec [42]

And - Multiplication
Coin - 1/2
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Answer - 1/10

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4 years ago

Among a sample of 55 male soldiers the average shower time was found to be 2.95 minutes and the population standard deviation is

Oksanka [162]

Answer: -3.0593

Step-by-step explanation:

The test statistic for the difference between two population mean (when population standard deviations $\sigma_1\ \&\ \sigma_2$ are known ) is given by :-

$z=\dfrac{\overline{x}_1-\overline{x}_2}{\sqrt{\dfrac{\sigma_1^2}{n_1}+\dfrac{\sigma_2^2}{n_2}}}$

where ,

$n_1\ \&\ n_2$ = Sample sizes taken from two populations 1 and 2.

$\overline{x}_1-\overline{x}_2$ = Difference between two Sample mean.

$\sigma_1\ \&\ \sigma_2$ = Standard deviations of populations 1 and 2.

As per given , we have

$n_1=55\ \&\ n_2=58$

$\overline{x}_1=2.95\ \&\ \overline{x}_2=3.3$

$\sigma_1=0.65\ \&\ \sigma_2=0.56$

We assume that the data follows a normal distribution.

Then, the test statistic will be :-

$z=\dfrac{2.95-3.3}{\sqrt{\dfrac{(0.65)^2}{55}+\dfrac{(0.56)^2}{58}}}\\\\=\dfrac{-0.35}{\sqrt{0.0130887}}\\\\=\dfrac{-0.35}{0.1144059}=3.05928278174\approx-3.0593$

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4 years ago

A.P.E.X Algebra 1 Sem 2

murzikaleks [220]

Answer:

Data Set C

Step-by-step explanation:

You can see that the data is best fit and better looking and fitting to the line in the data set C.

3 0

2 years ago

The fractions with the same numerators and different denominators are NOT equivalent.

WINSTONCH [101]

B has the same denominator so there is your answer

7 0

4 years ago

The following points for a function are graphed in the coordinate plane: (0, 4), (1, 5), (2, 6), and (3, 7).What function is bei

Alexxx [7]

Answer:

The correct answer is

$y=x+4$

Explanation:

We are given the points:

(0, 4)

(1, 5)

(2, 6)

(3, 7)

We can see that for each unit that x-coordinate grows, the y-coordinate also grows one.

This means that the slope of the line is m = 1

The first point given, tell us the y-intercept: (0, 4)

The slope-intercept form of a line is:

$y=mx+b$

Where m is the slope and b the y-intercept.

For the points given:

m = 1

b = 4

Thus:

$y=1\cdot x+4=x+4$

8 0

1 year ago