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
Effectus [21]
3 years ago
14

In a transformation, which figure us the pre-image and which figure is image? will give branilyest

Mathematics
1 answer:
hoa [83]3 years ago
6 0
The new image often has a ' next to it if this helps
You might be interested in
A horse had 4 15 scoops of oats in his bucket. He ate 2 1/2 scoops of oats. How many scoops of oats are left in his bucket ?
Lunna [17]
2 1/2 because if u take away 4 from 2 u get 2 and a half left
6 0
4 years ago
Jennifer pays $12.50 a month for Amazon Prime and pays extra every time she rents a movie. One month she rented 1 movie and paid
Dafna1 [17]

Answer: y=5.25x+12.50

Step-by-step explanation:

The original 12.50 is how much she pays each month regardless of rented movies, it is the 0 value and doesn't change. Each rented movie costs 5.25 (17.75-12.50=5.25) and that value would be multiplied by the amount of movies she rents that month, and then added onto the original base value.

6 0
3 years ago
Read 2 more answers
Can y'all pleas help me with this
Katena32 [7]

Answer:

B

Step-by-step explanation:

Siri said thats right

8 0
3 years ago
Read 2 more answers
Solve y over negative 2 + 5 = 13.
sattari [20]
Y/(-2+5)=13
y/(3)=13
y=39
6 0
3 years ago
A 2003 study of dreaming found that out of a random sample of 106 ​people, 80 reported dreaming in color.​ However, the rate of
Vlad [161]

Answer:

Step-by-step explanation:

Hello!

You have the following experiment, a random sample of 106 people was made and they were asked if they dreamed in color. 80 persons of the sample reported dreaming in color.

The historical data from the 1940s informs that the population proportion of people that dreams in color is 0.21(usually when historical data is given unless said otherwise, is considered population information)

Your study variable is a discrete variable, you can define as:

X: Amount of people that reported dreaming in colors in a sample of 106.

Binomial criteria:

1. The number of observation of the trial is fixed (In this case n = 106)

2. Each observation in the trial is independent, this means that none of the trials will have an effect on the probability of the next trial (In this case, the fact that one person dreams in color doesn't affect or modify the probability of the next one dreaming in color)

3. The probability of success in the same from one trial to another (Or success is dreaming in color and the probability is 0.21)

So X~Bi(n;ρ)

In order to be able to run a proportion Z-test you have to apply the Central Limit Theorem to approximate the distribution of the sample proportion to normal:

^ρ ≈ N(ρ; (ρ(1-ρ))/n)

With this approximation, you can use the Z-test to run the hypothesis.

Now what the investigators want to know is if the proportion of people that dreams in color has change since the 1940s, so the hypothesis is:

H₀: ρ = 0.21

H₁: ρ ≠ 0.21

α: 0.10

The test is two-tailed,

Left critical value: Z_{\alpha/2} = Z_{0.95} = -1.64

Right critical value: Z_{1-\alpha /2} = Z_{0.95} = 1.64

If the calculated Z-value ≤ -1.64 or ≥ 1.64, the decision is to reject the null hypothesis.

If -1.64 < Z-value < 1.64, then you do not reject the null hypothesis.

The sample proportion is ^ρ= x/n = 80/106 = 0.75

Z= <u>     0.75 - 0.21    </u> = 12.83

    √[(0.75*0.25)/106]

⇒Decision: Reject the null hypothesis.

p-value < 0.00001 is less than 0.10

If you were to conduct a one-tailed upper test (H₀: ρ = 0.21 vs H₁: ρ > 0.21) with the information of this sample, at the same level 10%, the critical value would be Z_{0.90}1.28 against the 12.83 from the Z-value, the decision would be to reject the null hypothesis (meaning that the proportion of people that dreams in colors has increased.)

I hope this helps!

4 0
3 years ago
Other questions:
  • What is the slope intercept form of 10x-7y=-8?
    15·2 answers
  • What numbers is 90 divisble by
    10·2 answers
  • A fruit company delivers its fruit in two types of boxes: large and small. A delivery of 2 large boxes and 6 small boxes has a t
    10·1 answer
  • Simplify the expression 2(8.8x + 17.6)-4.3. what is the constant in the simplified expression
    13·1 answer
  • What is the scientific notation of the number 14 100 000
    14·1 answer
  • 8. Which of these would best measure the WEIGHT of a ship?
    6·1 answer
  • 6. Write an equation for the line that is parallel to the given line and that passes through the given point.
    15·1 answer
  • To save money for college, Manny puts $800 in his savings account for 18 years. During that time, it pays 6.75% simple Interest.
    10·1 answer
  • Find the area of this parallelogram<br><br> BRAINLIST if correct
    12·1 answer
  • What is the relationship
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!