1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
murzikaleks [220]
2 years ago
11

ANSWER QUICKLY PLS!! Choose the best graph that describes the statement.

Mathematics
2 answers:
slava [35]2 years ago
4 0

Answer:

pretty sure its b

Step-by-step explanation:

Romashka [77]2 years ago
3 0

Answer:

A)

Step-by-step explanation:

The child gradually swings higher. The child starts off low on the ground and swings until it's maximum.

You might be interested in
According to a Pew Research Center study, in May 2011, 35% of all American adults had a smart phone (one which the user can use
taurus [48]

Answer:

z=\frac{0.4 -0.35}{\sqrt{\frac{0.35(1-0.35)}{300}}}=1.82  

p_v =P(z>1.82)=0.034  

So the p value obtained was a very low value and using the significance level given \alpha=0.1 we have p_v so we can conclude that we have enough evidence to reject the null hypothesis

And the best conclusion would be:

There is enough evidence to show that more than 35% of community college students own a smart phone (Pvalue = 0.034).

And for the second case the correct system of hypothesis is:

H0: p = 0.078; Ha: p > 0.078

Step-by-step explanation:

Data given and notation

n=300 represent the random sample taken

\hat p=\frac{120}{300}=0.4 estimated proportion of college students that have a smart phone

p_o=0.35 is the value that we want to test

\alpha=0.1 represent the significance level

Confidence=90% or 0.90

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 proportion is >0.35.:  

Null hypothesis:p\leq 0.35  

Alternative hypothesis:p > 0.35  

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.

Calculate the statistic  

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

z=\frac{0.4 -0.35}{\sqrt{\frac{0.35(1-0.35)}{300}}}=1.82  

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 significance level provided \alpha=0.1. 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>1.82)=0.034  

So the p value obtained was a very low value and using the significance level given \alpha=0.1 we have p_v so we can conclude that we have enough evidence to reject the null hypothesis

And the best conclusion would be:

There is enough evidence to show that more than 35% of community college students own a smart phone (Pvalue = 0.034).

And for the second case the correct system of hypothesis is:

H0: p = 0.078; Ha: p > 0.078

4 0
3 years ago
2) A farmer has a cylindrical silo he uses to store corn. The silo has a height of 50 feet and a
musickatia [10]

Answer:

Step-by-step explanation:

Volume of Cylinder = πr²h

                                = 3.14 * 12 * 12 * 50

                                = 22608 cubic ft

4 0
3 years ago
Mrs. Dider had $75 to purchase supplies for a party. She bought 46 party favors and 63 cupcakes. Each party favor cost $0.75 and
MatroZZZ [7]

Answer:

$7.74

Step-by-step explanation:

0.75x46=34.5

0.52x63=32.76

34.5+32.76=67.26

75-67.26=7.74


6 0
3 years ago
There are 4 red and 8 blue marbles in a bag. Mark draws a blue marble out of the bag and does not replace it. Mark draws a secon
Temka [501]

Answer:

The chance of him pulling out another blue marble is 6/10 or 3/5

Step-by-step explanation:

8 0
3 years ago
Which point is a solution to the inequality shown in this graph?
sergey [27]

Good morning

Answer:

B: (1, 5)

Step-by-step explanation:

This graph shows the solutions to the inequality: y > (1/3)x - 2

Since, 5 > (1/3)×1 - 2 then the point (1 ,5) is a solution to the inequality.

____________________________

:)

6 0
3 years ago
Other questions:
  • cirrus clouds form more than 6,000 meters above earth. write Aand inequality to represent h, the height, in meters, of cirrus cl
    14·1 answer
  • The operator of a pumping station has observed that demand for water during early afternoon hours has an approximately exponenti
    11·1 answer
  • Please help me out with this problem!
    6·1 answer
  • A bird flies 1 mile north, then 1 mile east. how far is it from where it started?
    15·1 answer
  • Selena is flying her kite. How long is the kite string?
    9·1 answer
  • (this is multiple choice and i raised points make sure to EXPLAIN !)
    13·2 answers
  • A right circular cylinder can which is open at the top has base radius of 5m and height of 10m. Find its
    12·1 answer
  • What is wrong with the following equation: 4 + (10 / 5) = 6 - 2
    10·2 answers
  • F(x)=3x−4 Input is x=3 , Output is
    11·1 answer
  • Allie ordered a set of green and yellow pins. She received 28 green pins and 7 yellow pins. What percentage of the pins were gre
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!