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
EastWind [94]
3 years ago
8

What is the solution?

Mathematics
1 answer:
monitta3 years ago
8 0

Answer:

(4, 4)

Step-by-step explanation:

y = 7/4 x - 3       graph (0, -3) (2, .5), (4, 4) (8, 11).  Draw the line

y = x                        graph (0,0)  (2, 2), (4, 4) , ( -2, -2).  Draw the line

The two lines intersect at point (4, 4)

You might be interested in
GIVING BRAINLIEST!!!
lord [1]

Answer:

D.

Explanation:

PEMDAS method. First do the parentheses. Multiply first, then subtract 12 from that number. Once finished with the parentheses, multiply by 8.

7 0
3 years ago
What is the unit rate of 5 pounds of oranges cost 10.45?<br> find the unit rate
nataly862011 [7]

Answer:

The answer is 2.09 per pound.

Step-by-step explanation:

To find the unit rte, you divide 10.45 by 5.

8 0
3 years ago
Historically, the proportion of people who trade in their old car to a car dealer when purchasing a new car is 48%. Over the pre
choli [55]

Answer:

z=\frac{0.4 -0.48}{\sqrt{\frac{0.48(1-0.48)}{115}}}=-1.717  

p_v =P(z  

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 we can said that at 5% of significance the proportion of people that have traded in their old car is lower than 0.48 or 48%.  

Step-by-step explanation:

Data given and notation

n=115 represent the random sample taken

X=46 represent the number of people that have traded in their old car.

\hat p=\frac{46}{115}=0.4 estimated proportion of people that have traded in their old car

p_o=0.48 is the value that we want to test

\alpha=0.1 represent the significance level

Confidence=90% or 0.9

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 less than 0.48.:  

Null hypothesis:p\geq 0.48  

Alternative hypothesis:p < 0.48  

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 -0.48}{\sqrt{\frac{0.48(1-0.48)}{115}}}=-1.717  

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 left tailed test the p value would be:  

p_v =P(z  

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 we can said that at 5% of significance the proportion of people that have traded in their old car is lower than 0.48 or 48%.  

4 0
3 years ago
Write 5/z^-3 as a positive exponent
levacccp [35]

The correct answer will be 5z^3

8 0
3 years ago
Select all the correct answers.
vlabodo [156]
Car load and insurance premium
7 0
3 years ago
Read 2 more answers
Other questions:
  • In △ABC , AC=12 in. , BC=1.5 in. , and m∠C=63° .  
    7·1 answer
  • Please help me with this problem thanks guys
    8·1 answer
  • How to find missing side lengths with an angle and one length?
    14·1 answer
  • Jilian was asked to translate the expression 9+n. She wrote "a number increased by nine." Which best describes the accuracy of J
    11·1 answer
  • An even number divided by an even number cab be a/an:
    8·1 answer
  • Require full steps working for this question
    10·1 answer
  • A hypothesis will be used to test that a population mean equals 5 against the alternative that the population mean is less than
    6·1 answer
  • Factor the polynomial 3x^2 + 15x + 18
    11·1 answer
  • The perimeter of the rectangle below is 174 units. Find the length of side BC. Write your answer without variables.
    5·1 answer
  • Jenna constructs the model to represent 3x2 11x – 4. An algebra tile configuration. 0 tiles are in the Factor 1 spot. 0 tiles ar
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!