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
lesya [120]
2 years ago
14

I need help ASAP!

Mathematics
1 answer:
Leno4ka [110]2 years ago
6 0
10a. y= 35x + 60
10b. $165
You might be interested in
the sum of present ages of a father and his son is 60 years. if both of them live until the son becomes as well as the father is
lora16 [44]

imma say 30. 60 + 60 is 120 and 60-half is 30.

3 0
3 years ago
I need help with finding out both of the answers to these questions.
Semmy [17]

Answer:

6). unknown side is 6.23m

7). angle is 26.58 degrees

Step-by-step explanation:

you must use the Pythagoras theorem formula to find the unknown side if you have only two sides

7 0
3 years ago
Read 2 more answers
Please help me I’ll give brainly
Dvinal [7]
Obtuse, acute, and right.
3 0
2 years ago
!!!KHAN ACADEMY!!! help please
barxatty [35]
Use photomath lollllll
3 0
3 years ago
Either use technology to find the P-value or use
Akimi4 [234]

Answer:

The first step is calculate the degrees of freedom, on this case:  

df=n-1=21-1=20  

Since is a one side left tailed test the p value would be:  

p_v =P(t_{(20)}  

And we can use the following excel code to find it: "=T.DIST(-0.024,20,TRUE)"

Step-by-step explanation:

Data given and notation  

\bar X represent the mean

s represent the sample standard deviation

n=21 sample size  

\mu_o =140 represent the value that we want to test

\alpha represent the significance level for the hypothesis test.  

t=-0.024 would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the mean for the widths of tornadoes is lower than 140 yd, the system of hypothesis would be:  

Null hypothesis:\mu \geq 140  

Alternative hypothesis:\mu < 140  

If we analyze the size for the sample is < 30 and we don't know the population deviation so is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:  

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic

The statistic is given by: t = -0.024

P-value

The first step is calculate the degrees of freedom, on this case:  

df=n-1=21-1=20  

Since is a one side left tailed test the p value would be:  

p_v =P(t_{(20)}  

And we can use the following excel code to find it: "=T.DIST(-0.024,20,TRUE)"

Based on the p value obtained we can conclude that we FAIL to reject the null hypothesis at any significance level selected \alpah=0.01,0.05,0.1

7 0
3 years ago
Other questions:
  • PLEASE HELP ASAP!!!<br> :)))))
    5·1 answer
  • If you have a cat what is it name
    13·2 answers
  • Round 3,062.845 to 2 decimal places
    14·1 answer
  • The respiratory system can be a limiting factor in maximal exercise performance. researchers from the united kingdom studied the
    8·1 answer
  • ​ Quadrilateral ABCD ​ is inscribed in this circle.
    5·1 answer
  • If ( 2 x 1) (0 x -1) = ( 15 ), then the value of x is
    6·1 answer
  • An electrician has 4.1 meters of wire. How many strips of 7/10 meter long can he cut?
    14·1 answer
  • Evaluate<br> 1/3*4*9*1/2
    10·2 answers
  • Solve the equation.
    6·1 answer
  • Which of the expressions are equivalent to the one below? Check all that
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!