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
oee [108]
3 years ago
8

Evaluate the expression for x = -2 and y = 3​

Mathematics
1 answer:
Anna71 [15]3 years ago
5 0

Answer:

Tell me the expression so I can answer the question!

Step-by-step explanation:

You might be interested in
10. If pointer 1 is spun and then pointer 2 is spun, determine the probability of landing on a color other than red on both spin
Brilliant_brown [7]

Answer:

Answer below

Step-by-step explanation:

1/8 is correct

in pic

_________________________________________

(Hope this helps can I pls have brainlist (crown)☺️)

5 0
2 years ago
A graph has a constant of proportionality of 35. Let y represent miles and x represent gallons.
Harman [31]

Answer:

Step-by-step explanation:35x

6 0
3 years ago
The scatter plot below shows the number of pizzas sold during weeks when different numbers of coupons were issued. The equation
levacccp [35]

Answer:

94 pizzas will be sold

Step-by-step explanation:

We have to use the equation and replace 15 with x.

x=15

y=3.4x + 43

y=3.4(15) + 43

y=51 + 43

y=94

(15,94)

There will be 94 pizzas sold nightly if 15 coupons were issued.

6 0
3 years ago
Read 2 more answers
Darrel divided 575 by 14 by using partial quotients, what is the quotient?
Usimov [2.4K]
143r3 (143 remainder 3)
3 0
3 years ago
Polymer composite materials have gained popularity because they have high strength to weight ratios and are relatively easy and
Brums [2.3K]

Answer:

t=\frac{51.6-48}{\frac{1.1}{\sqrt{10}}}=10.349      

p_v =P(t_9>10.349)=1.34x10^{-6}  

If we compare the p value and the significance level given for example \alpha=0.05 we see that p_v so we can conclude that we reject the null hypothesis, and the the actual mean is significantly higher than 48 MPa at 5% of significance.

Step-by-step explanation:

1) Data given and notation      

\bar X=51.6 represent the sample mean

s=1.1 represent the standard deviation for the sample      

n=10 sample size      

\mu_o =48 represent the value that we want to test    

\alpha=0.05 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.      

We need to conduct a hypothesis in order to determine if the mean score is higher than 48, the system of hypothesis would be:      

Null hypothesis:\mu \geq 48      

Alternative hypothesis:\mu > 48      

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{\sigma}{\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      

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

t=\frac{51.6-48}{\frac{1.1}{\sqrt{10}}}=10.349      

Calculate the P-value      

First we find the degrees of freedom:

df=n-1=10-1=9

Since is a one-side upper test the p value would be:      

p_v =P(t_9>10.349)=1.34x10^{-6}  

Conclusion      

If we compare the p value and the significance level given for example \alpha=0.05 we see that p_v so we can conclude that we reject the null hypothesis, and the the actual mean is significantly higher than 48 MPa at 5% of significance.        

5 0
3 years ago
Other questions:
  • Which of the following are a pair of vertical angles?
    8·1 answer
  • Given p ≠ q ≠ 0, what is the equation of the line that passes through the points (–p, –q) and (p, q)?
    14·2 answers
  • On Monday Greg walks the entire length of a trail that is 3 1/2 miles long. On Tuesday he walks the entire length of a trail tha
    14·2 answers
  • Help a sphere has a radius of 8ft if the radius is doubled what is the effect on volume
    7·1 answer
  • Help me with this problem please
    9·1 answer
  • The graph shows the price, in dollars, of different numbers of sweet breads at Alan's store. The table shows the price, in dolla
    6·1 answer
  • Ronnie can paint 8 rocks in 5 minutes. How long will it take him to paint 54 rocks
    9·2 answers
  • Ryan is cleaning out his room. His sister gives him 4 boxes of books to put with the 3 books he already had. When he finishes cl
    10·1 answer
  • What fraction do you get when you divide 5 by 6?
    9·1 answer
  • Hey! i’ll give brainliest please help
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!