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
Ainat [17]
2 years ago
11

Which pair of vectors is orthogonal?

Mathematics
1 answer:
NemiM [27]2 years ago
3 0

Answer:

c

Step-by-step explanation:

You might be interested in
The expression 3(x-9) is equivalent to
11111nata11111 [884]

Answer:

3(x)-3(9)

Step-by-step explanation:

The brackets means you times everything within the brackets with everything outside it. So it would be 3 times x take away 3 times 9

8 0
2 years ago
Three points, A, B, and C exists in space such that B is "between" A and C. It is known that AB=7, BC=4, and AC=9. Are points A,
EleoNora [17]

If the points are collinear, then that would mean that the points lie on the same line when joined to each other. In order to confirm this, the distances between the points must sum up to the length of the line.<span>

AB + BC = AC
7 + 4 ? 9
11 ≠ 9

<span>Since they do not sum up, therefore, the points are not collinear.</span></span>

8 0
2 years ago
Out of 25 attempts, a basketball player scored 17 times. One- half of the missed shots are what percent of the total shots
Alona [7]
16% 25-17=8 8/2=4 4/25=16/100
8 0
3 years ago
A recipe submitted to a magazine by one of its subscribers’ states that the mean baking time for a cheesecake is 55 minutes. A t
EastWind [94]

Answer:

t=\frac{59.4-55}{\frac{3.239}{\sqrt{10}}}=4.296    

The degrees of freedom are given by:

df=n-1=10-1=9  

The p value for this case is given by:

p_v =P(t_{(9)}>4.296)=0.001  

And for this case the p value is lower than the significance level so we have enough evidence to reject the null hypothesis and then we can conclude that true mean is higher than 55.

Step-by-step explanation:

Information given

We have the following data: 54 55 58 59 59 60 61 61 62 65

The sample mean and deviation can be calculated 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=59.4 represent the sample mean

s=3.239 represent the sample standard deviation

n=10 sample size  

\alpha=0.05 represent the significance level

t would represent the statistic  

p_v represent the p value

System of hypothesis

We want to test if the true mean is higher than 55, the system of hypothesis would be:  

Null hypothesis:\mu \leq 55  

Alternative hypothesis:\mu > 55  

Replacing the info given we got:

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

And replacing the info given we got:

t=\frac{59.4-55}{\frac{3.239}{\sqrt{10}}}=4.296    

The degrees of freedom are given by:

df=n-1=10-1=9  

The p value for this case is given by:

p_v =P(t_{(9)}>4.296)=0.001  

And for this case the p value is lower than the significance level so we have enough evidence to reject the null hypothesis and then we can conclude that true mean is higher than 55

8 0
3 years ago
Answer the question below, topic: scaled topies
katen-ka-za [31]

Answer:

The answer is C

Step-by-step explanation:

So, in A, the ratio is 5:3- understand? And in C, the ratio is 10:6. You multiply <u>5(2) and 3(2)</u>, and you get 10:6

-Hope this helped!

3 0
3 years ago
Other questions:
  • Which type of correlation is suggested by the scatter plot
    15·1 answer
  • The Johnson twins were born five years after their older sister. This​ year, the product of the three​ siblings' ages is exactly
    12·1 answer
  • What are the factors for 36
    15·2 answers
  • joni made a down payment of 1,600 on a car. that was 20% of the total price. what was the total price?
    13·2 answers
  • Help as soon as possible
    15·1 answer
  • Factor the following expression completely 16x^5-x^3
    14·2 answers
  • Give two ways to x+9 algebraic expression in words
    14·2 answers
  • Sin(5x 3 + 20) = cos(2x 3 + 14)
    13·1 answer
  • Madison saves 40% of all that she earns for washing cars. So far she has saved $72 . How much has she earned in all?
    7·1 answer
  • Which graph below shows the equations y=|x| and y=3|x| for the interval -3&lt; x &lt;3?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!