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
Mkey [24]
3 years ago
10

A coordinate plane showing the Speed of a Red Kangaroo. The x-axis shows Time in seconds and the y-axis shows Distance Traveled

in feet. There is a straight line with a positive slope starting at (0, 0) and passing through point A at (3, 150), then point B at (4, 200) and continues through (7, 350).
Red kangaroos can reach speeds up to 50 feet per second. Use the linear graph at the left to answer the questions.

What is the change in y-values from
Point A to Point B?

What is the change in x-values from
Point A to Point B?

What is the rate of change of the linear function?

feet per second
Mathematics
2 answers:
Daniel [21]3 years ago
6 0

Answer:

What is the change in y-values from

Point A to Point B?  

50

What is the change in x-values from

Point A to Point B?  

1

What is the rate of change of the linear function?

50

feet per second

Step-by-step explanation:

sesenic [268]3 years ago
4 0

Red kangaroos can reach speeds up to 50 feet per second. Use the linear graph at the left to answer the questions.

What is the change in y-values from

Point A to Point B?

50

What is the change in x-values from

Point A to Point B?

1

What is the rate of change of the linear function?

50

feet per second

You might be interested in
Which expression is equvialent to a+4a+8​
Gnoma [55]

Answer:

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
A recent article reported that a job awaits only one in three new college graduates. The major reasons given were an overabundan
nikitadnepr [17]

Answer:

z=\frac{0.4 -0.33}{\sqrt{\frac{0.33(1-0.33)}{200}}}=2.105  

p_v =P(z>2.105)=0.018  

If we compare the p value obtained and the significance level given \alpha=0.01 we have p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 1% of significance the proportion of students that had job at the school mentioned is not significantly higher then 0.33 .  

Step-by-step explanation:

1) Data given and notation  

n=200 represent the random sample taken

X=80 represent the number of students that had jobs

\hat p=\frac{80}{200}=0.4 estimated proportion of students that had jobs

p_o=0.3333 is the value that we want to test

\alpha=0.01 represent the significance level

Confidence=99% or 0.99

z would represent the statistic (variable of interest)

p_v represent the p value (variable of interest)  

2) Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that the proportion of students that have jobs at the school mentioned is higher than the reported value at the article:  

Null hypothesis: p\leq 0.33  

Alternative hypothesis:p > 0.33  

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.

3) Calculate the statistic  

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

z=\frac{0.4 -0.33}{\sqrt{\frac{0.33(1-0.33)}{200}}}=2.105  

4) 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=0.01. 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>2.105)=0.018  

If we compare the p value obtained and the significance level given \alpha=0.01 we have p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 1% of significance the proportion of students that had job at the school mentioned is not significantly higher then 0.33 .  

7 0
3 years ago
You have read 25 pages of a book. You plan to read an additional 10 pages each night. Write the explicit formula to represent th
ch4aika [34]

Answer:

p=10n+25

Step-by-step explanation:

Let's have p represent the number of pages you will read. If you read 10 pages per night, then you are multiplying 10 by the number of nights, which gives you 10n. Because you have already read 25 pages, you want to add to the 10n to give you the equation of p=10n+25

6 0
3 years ago
Read 2 more answers
What percent of 8 is 32.52?
bonufazy [111]
X8/100=32.52
x8=3252
x=406.5%
6 0
3 years ago
Multiply both sides of the original equation by x, and find the solution set of the new equation.
prisoha [69]

Answer: (0, 1) Usually, we put the solutions in parenthesis.

Step-by-step explanation: x(x+1) = x(2) which = x²+ x = 2x = x² + x - 2x = 0

x² - x = 0. Now we divide by x which = x(x - 1) = 0 and the new solution set is x = 0 and x -1 = 0 which equals x = 1

5 0
3 years ago
Other questions:
  • A card is drawn from a deck of 52 cards. find the probability of drawing a king or a red card
    6·1 answer
  • Tali started a pool cleaning business. She purchased cleaning supplies and charged the same amount for each pool cleaned. The ex
    8·2 answers
  • What is the point-slope form?
    8·2 answers
  • Triangle ABC has points A(2, -1), B(3, 4), C(-7, 2), and is dilated by a factor of 5 to create the triangle A'B'C'. What are the
    11·1 answer
  • HELP ME ASAP! Will give BRAINLIEST! Please read the question THEN answer correctly! No guessing.
    10·1 answer
  • A parabola opening up or down has vertex (0,
    5·1 answer
  • Solve for x for this triangle (geometry)
    12·1 answer
  • Write an expression, using an exponent, equivalent to 5 x 5 x 5 x 5.Enter your expression in the space provided.
    9·2 answers
  • $16 for 4 books. How much would 12 books cost?
    11·2 answers
  • jennifer works at whataburger and earned 168.75 last week. If she worked 22.5 hours, how much does she earn per hour?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!