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
andre [41]
1 year ago
8

Victor rotated his initial , V, about point P what stayed the same between the pre image and the image, what changed?

Mathematics
1 answer:
creativ13 [48]1 year ago
5 0

Answer:

i have this question before may you

Step-by-step explanation:

pleaese chck it

You might be interested in
If f and g are differentiable functions for all real values of x such that f(1) = 4, g(1) = 3, f '(3) = −5, f '(1) = −4, g '(1)
worty [1.4K]
Hello,

h(x)'=(f(x)*g(x))'=f'(x)*g(x)+f(x)*g'(x)
h(1)=f'(1)*g(1)+(f(1)*g'(1)=-4*3+4*(-3)=-24
Answer B

7 0
3 years ago
At a local university, a sample of 49 evening students was selected in order to determine whether the average age of the evening
pav-90 [236]

Answer:

z=\frac{23-21}{\frac{3.5}{\sqrt{49}}}=4    

p_v =2*P(z>4)=0.0000633  

When we compare the significance level \alpha=0.1 we see that p_v so we can reject the null hypothesis at 10% of significance. So the  the true mean is difference from 21 at this significance level.

Step-by-step explanation:

Data given and notation  

\bar X=23 represent the sample mean

\sigma=3.5 represent the population standard deviation

n=49 sample size  

\mu_o =21 represent the value that we want to test

\alpha=0.1 represent the significance level for the hypothesis test.  

z 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 average age of the evening students is significantly different from 21, the system of hypothesis would be:  

Null hypothesis:\mu = 21  

Alternative hypothesis:\mu \neq 21  

The statistic is given by:

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}  (1)  

Calculate the statistic

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

z=\frac{23-21}{\frac{3.5}{\sqrt{49}}}=4    

P-value

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

p_v =2*P(z>4)=0.0000633  

Conclusion  

When we compare the significance level \alpha=0.1 we see that p_v so we can reject the null hypothesis at 10% of significance. So the  the true mean is difference from 21 at this significance level.

8 0
3 years ago
F(x) = 2x3 + 732 – 4x - 5<br> g(x) = 3x – 2<br> Find ( f - g)(x).
Nadya [2.5K]

Answer:

(f-g) (x)=731.............

6 0
3 years ago
A baker needs 8 1/2
ankoles [38]

Answer:

.

Step-by-step explanation:

OKAY, IM DOING A TEST WITH THIS QUESTION IM PRETTY SURE U NEED TO 4/23+5/14 AND WHATEVER THAT = YOU THEN SUBTRACT   8/12 AND I FORGOT HOW TO DO THE DARN ADDING-

3 0
3 years ago
The length of a rectangle is 44 centimeters less than its width. What are the dimensions of the rectangle if its area is 221 squ
Artist 52 [7]
<span>5.02272727273 x 44 = 221</span>
4 0
3 years ago
Other questions:
  • Which expression represents the volume of the prism? 1/2 * x ^ 3 (1/2 * x) ^ 3 5/2 * x ^ 3 (5/2 * x) ^ 3
    8·2 answers
  • Somebody, please help!
    9·2 answers
  • How can u turn 10 into a mixed number ?
    11·1 answer
  • A teacher has 15 weeks in which to teach six chapters. Write and then solve an equation, showing all work, that represents the n
    14·1 answer
  • Use the substitution method to solve the system of equations. y=7x +8 y=x +20​
    10·1 answer
  • A short necklace has 32 gold beads and 8 black beads.
    10·1 answer
  • HURRY IM TIMED!! which inequality is represented by this graph?
    9·2 answers
  • Pls answer this is due in 30 minutes
    15·1 answer
  • Lol help meeeeee :((((((((((((((((((((
    9·2 answers
  • What is the range?????? 100pts and
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!