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
kodGreya [7K]
3 years ago
10

What is the y-intercept of 6x+ 12y= 60?

Mathematics
1 answer:
exis [7]3 years ago
7 0
1st one is the y Intercept is 5. get y by itself 12y=-6x+60 divide by 12.
2nd slope is -3
You might be interested in
What is lemma?<br> ________________<br> Thx!
german
A subsidiary or intermediate theorem in an argument or proof.
Source: Wikipedia
5 0
3 years ago
Read 2 more answers
Consider a chemical company that wishes to determine whether a new catalyst, catalyst XA-100, changes the mean hourly yield of i
kolezko [41]

Answer:

Null hypothesis:\mu = 750  

Alternative hypothesis:\mu \neq 750  

t=\frac{811-750}{\frac{19.647}{\sqrt{5}}}=6.943  

p_v =2*P(t_{4}>6.943)=0.00226  

If we compare the p value and a significance level assumed \alpha=0.05 we see that p_v so we can conclude that we reject the null hypothesis, and the actual true mean is significantly different from 750 pounds per hour.  

Step-by-step explanation:

Data given and notation

Data:    801, 814, 784, 836,820

We can calculate the sample mean and sample deviation with the following formulas:

\bar X =\frac{\sum_{i=1}^n X_i}{n}

s=\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}

\bar X=811 represent the sample mean  

s=19.647 represent the standard deviation for the sample

n=5 sample size  

\mu_o =750 represent the value that we want to test  

\alpha represent the significance level for the hypothesis test.  

t 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 to be tested  

We need to conduct a hypothesis in order to determine if the mean is different from 750 pounds per hour, the system of hypothesis would be:  

Null hypothesis:\mu = 750  

Alternative hypothesis:\mu \neq 750  

Compute the test statistic  

We don't know the population deviation, so for this case 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".  

We can replace in formula (1) the info given like this:  

t=\frac{811-750}{\frac{19.647}{\sqrt{5}}}=6.943  

Now we need to find the degrees of freedom for the t distirbution given by:

df=n-1=5-1=4

What do you conclude?  

Compute the p-value  

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

p_v =2*P(t_{4}>6.943)=0.00226  

If we compare the p value and a significance level assumed \alpha=0.05 we see that p_v so we can conclude that we reject the null hypothesis, and the actual true mean is significantly different from 750 pounds per hour.  

4 0
3 years ago
the legs of a right triangle are 4 units and 7 units. What is the length of the hypotenuse? Select one: a. square root 33 units
Mrac [35]

\bf \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies c=\sqrt{a^2+b^2} \qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases} \\\\\\ c=\sqrt{4^2+7^2}\implies c=\sqrt{65}

4 0
3 years ago
Read 2 more answers
Given: ∠JOH = 27° and arc NML = 98°. Find the measure of arc JH.
stepladder [879]
We need an image because of this

6 0
3 years ago
Subtract h + 3 ​​from​ 6h + 1.
jok3333 [9.3K]

Answer:

the answer is 5h + 4

Step-by-step explanation:

subtract the variable (h)

5 0
3 years ago
Other questions:
  • What is 45/76 simplified
    5·2 answers
  • An elephant drinks about 4368 milliliters per day. Use dimensional analysis to show how many liters per hour this is.
    10·1 answer
  • a teacher is shouting she shuts the door she shuts the windows but forgets to shut something what is it? i know but do you know
    13·1 answer
  • What is the diameter of a circle with a circumference of 18.84956?
    12·1 answer
  • The relation described in this statement can be classified as which of the following? The total distance traveled and the time s
    13·1 answer
  • Help... with.... Algebra..... PLEASE
    14·2 answers
  • Lisa had $7.33. She then bought a pen for $1.14.<br> How much money does she have left?
    10·2 answers
  • I need help with this please...
    6·2 answers
  • The chart shows number of minutes students spent studying for a test and their grade on the test. Draw a scatter plot of the dat
    11·2 answers
  • What 21.807-10.739=?​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!