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
wolverine [178]
3 years ago
7

Triangle CDA is the image of triangle ABC after 180 degrees rotation AroundThe midpoint of segment AC. Triangle ECB is the image

of triangle ABC after a 180 degree rotation around midpoint of segment BC.
Mathematics
1 answer:
Fiesta28 [93]3 years ago
6 0

Answer:what the answer

You might be interested in
Please hurry
Crazy boy [7]
Reflected across x axis, down 3 units, and to the left 7 units

the last one is your answer
8 0
3 years ago
Suppose that in a random selection of 100 colored candies, 21% of them are blue. The candy company claims that the percentage of
zhannawk [14.2K]

Answer:

The pvalue of the test is 0.0784 > 0.01, which means that at this significance level, we do not reject the null hypothesis that the percentage of blue candies is equal to 29%.

Step-by-step explanation:

The candy company claims that the percentage of blue candies is equal to 29%.

This means that the null hypothesis is:

H_{0}: p = 0.29

We want to test the hypothesis that this is true, so the alternate hypothesis is:

H_{a}: p \neq 0.29

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

0.29 is tested at the null hypothesis:

This means that \mu = 0.29, \sigma = \sqrt{0.29*0.71}

Suppose that in a random selection of 100 colored candies, 21% of them are blue.

This means that n = 100, X = 0.21

Value of the test statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{0.21 - 0.29}{\frac{\sqrt{0.29*0.71}}{\sqrt{100}}}

z = -1.76

Pvalue of the test:

The pvalue of the test is the probability of the sample proportion differing at least 0.21 - 0.29 = 0.08 from the population proportion, which is 2 multiplied by the pvalue of Z = -1.76.

Looking at the z-table, z = -1.76 has a pvalue of 0.0392

2*0.0392 = 0.0784

The pvalue of the test is 0.0784 > 0.01, which means that at this significance level, we do not reject the null hypothesis that the percentage of blue candies is equal to 29%.

5 0
3 years ago
Use compatible numbers to estimate the quotient <br> 252÷3
ICE Princess25 [194]

Answer:

The value of the given expression is 84.

Step-by-step explanation:

The given expression is

\frac{252}{3}

The number 252 can be written as 240+12, because 24 can easily divisible by 3.

The compatible numbers are 240 and 12

\frac{252}{3}=\frac{240+12}{3}

\frac{252}{3}=\frac{240}{3}+\frac{12}{3}

\frac{252}{3}=80+4

\frac{252}{3}=84

Therefore the value of the given expression is 84.

4 0
3 years ago
HEY hey hellooo HELP ME!!
Bezzdna [24]

Answer:

1, 6, 11, 16, 21, 26, 31, 36, 41, 46, 51, 56, 61, 66, 71.

6 0
3 years ago
Read 2 more answers
What is the answer <br>7(2m+5)​
ira [324]

Answer:

14m+35 is your answer ☺️☺️☺️

6 0
3 years ago
Read 2 more answers
Other questions:
  • ABCD are congruent to EFGH, AD=45in, EH=60in, BC=15in, What is FG
    14·1 answer
  • What’s the rate of change of this graph?
    11·2 answers
  • What is the slope of the line described by the equation below y-5=-3(x-17)
    15·2 answers
  • The square of the hypotenuse of a right triangle is 625. Which could be the side lengths explain
    8·1 answer
  • Which value in the replacement set is a solution to this equation?
    12·1 answer
  • Michelle went on a hike she started at 6:45am and returned at 3:28pm. How long did she hike
    14·2 answers
  • X minus 32? i need answer ASAP
    10·2 answers
  • Laura babysat 8 nights during the month of July. She earned $22, $30, $35, $25, $25, $20, and $27 for seven nights. How much did
    10·2 answers
  • A sphere and a cylinder have the same radius and height. The volume of the cylinder is 48 cm³.
    10·1 answer
  • What is the simplest form of the radical expressio √48x^4y^3? Assume x and y are positive.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!