All categories

1 year ago

I really need help with this can somebody help me ?

Mathematics

1 answer:

Mama L [17]1 year ago

6 0

<em>Answer</em>

a. Vertical shrink by a factor of 1/3

<em>Step-by-step explanation</em>

Function transformation

• a,f(x) vertically compresses f(x) when 0 < a < 1

Given the function:

$f(x)=x^2$

Multiplying f(x) by a = 1/3, we get:

$\frac{1}{3}f(x)=\frac{1}{3}x^2=h(x)$

Then, f(x) is vertically shrunk by a factor of 1/3

You might be interested in

I have no congruent sides. One of my angles has a measure of 100 degrees.

aliina [53]

The answer is a scalene triangle

5 0

3 years ago

CAN YALL PLS HELP !!!

JulijaS [17]

Answer:

the first step is wrong

it should be 4(x-4)/(x+1)(x-4) - (x+2)/(x-4)(x+1)

8 0

3 years ago

in a class room 1/6 of students are wearing blue shirts 2/3 are wearing white shirts there are 12 students how many are wearing

astra-53 [7]

Answer: 6 more people are wearing other shirts more than blue shirts.

Step-by-step explanation: hope this helps.

5 0

2 years ago

Read 2 more answers

In ΔNOP, the measure of ∠P=90°, NO = 96 feet, and OP = 36 feet. Find the measure of ∠O to the nearest tenth of a degree.

sladkih [1.3K]

Answer:

Step-by-step explanation:

4 0

3 years ago

(1 point) A noted psychic was tested for ESP. The psychic was presented with 180 cards face down and was asked to determine if t

Luba_88 [7]

Answer:

a) $z=\frac{0.239 -0.2}{\sqrt{\frac{0.2(1-0.2)}{180}}}=1.308$

b) $p_v =P(z>1.308)=0.0954$

Step-by-step explanation:

Data given and notation

n=180 represent the random sample taken

X=43 represent the correct guesses

$\hat p=\frac{43}{180}=0.239$ estimated proportion correct guesses

$p_o=0.2$ is the value that we want to test

$\alpha$ represent the significance level

z would represent the statistic (variable of interest)

$p_v$ represent the p value (variable of interest)

Concepts and formulas to use

We need to conduct a hypothesis in order to test the claim that the ture proportion is higher than 0.2 or no.:

Null hypothesis: $p=0.2$

Alternative hypothesis: $p > 0.2$

When we conduct a proportion test we need to use the z statistic, and the is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

The One-Sample Proportion Test is used to assess whether a population proportion $\hat p$ is significantly different from a hypothesized value $p_o$ .

Part a: Calculate the statistic

Since we have all the info requires we can replace in formula (1) like this:

$z=\frac{0.239 -0.2}{\sqrt{\frac{0.2(1-0.2)}{180}}}=1.308$

Part b: Statistical decision

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.

The next step would be calculate the p value for this test.

Since is a right tailed test the p value would be:

$p_v =P(z>1.308)=0.0954$

5 0

3 years ago