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
Tcecarenko [31]
2 years ago
12

Please help A B C D E F

Mathematics
1 answer:
vitfil [10]2 years ago
4 0

Answer: B. SAS or/and E. HL

Step-by-step explanation:

The two triangles both have a right angle of 90 degrees and two sides that are congruent so, SAS (side-angle-side). It can also be by HL since they both have a hypotenuse (the 2 lines) and one leg (the 1 line) that are congruent to each other.

You might be interested in
Robert takes out a loan for $7200 at a 4.3% rate for 2 years. What is the loan future value?
salantis [7]

Answer:

$7,526.94 future value with interest.

Step-by-step explanation:

5 0
2 years ago
Help!!! I really need this
anyanavicka [17]

Answer:

bruh

Step-by-step explanation:

maybe google works

6 0
3 years ago
Let f(x) = x2 and g(x) = x - 3.<br> Evaluate (gºf)(-2).<br> A. -20<br> B. 20<br> C. 7<br> D. 1
7nadin3 [17]

Answer:

D. 1

Step-by-step explanation:

Step 1: Find g of f(x)

g(f(x)) = (x²) - 3

Step 2: Plug in -2 as <em>x</em>

g(f(x))(-2) = (-2)² - 3

g(f(x))(-2) = 4 - 3

g(f(x))(-2) = 1

7 0
3 years ago
You mid morning break begins at 9:45 am and lasts for 10 minutes. you work for 2 hours and 10 minutes until your lunch break. wh
TiliK225 [7]
9:45 + 10 = 9:55
9:55 + 2:00= 11:55 This is what I got
8 0
3 years ago
The standard deviation of math test scores at one high school is 16.1. A teacher claims that the standard deviation of the girls
Elanso [62]

Answer:

\chi^2 =\frac{22-1}{259.21} 166.41 =13.482

p_v =P(\chi^2

In order to find the p value we can use the following code in excel:

"=CHISQ.DIST(13.482,21,TRUE)"

If we compare the p value and the significance level provided we see that p_v >\alpha so on this case we have enough evidence in order to FAIL reject the null hypothesis at the significance level provided. And that means that the population deviation is not significantly lower than 16.1 at 1% of significance.

Step-by-step explanation:

Notation and previous concepts

A chi-square test is "used to test if the variance of a population is equal to a specified value. This test can be either a two-sided test or a one-sided test. The two-sided version tests against the alternative that the true variance is either less than or greater than the specified value"

n=22 represent the sample size

\alpha=0.01 represent the confidence level  

s^2 =12.9^2=166.41 represent the sample variance obtained

\sigma^2_0 =16.1^2 =259.21 represent the value that we want to test

Null and alternative hypothesis

On this case we want to check if the population deviation is smaller than 16.1 (that's equivalent to check if the population variance is lower than 259.21:

Null Hypothesis: \sigma^2 \geq 259.21

Alternative hypothesis: \sigma^2

Calculate the statistic  

For this test we can use the following statistic:

\chi^2 =\frac{n-1}{\sigma^2_0} s^2

And this statistic is distributed chi square with n-1 degrees of freedom. We have eveything to replace.

\chi^2 =\frac{22-1}{259.21} 166.41 =13.482

Calculate the p value

In order to calculate the p value we need to have in count the degrees of freedom , on this case 21. And since is a left tailed test the p value would be given by:

p_v =P(\chi^2

In order to find the p value we can use the following code in excel:

"=CHISQ.DIST(13.482,21,TRUE)"

Conclusion

If we compare the p value and the significance level provided we see that p_v >\alpha so on this case we have enough evidence in order to FAIL reject the null hypothesis at the significance level provided. And that means that the population deviation is not significantly lower than 16.1 at 1% of significance.

3 0
3 years ago
Other questions:
  • Its timed hurry lad <br> Evaluate the logarithm log8 (32)
    8·2 answers
  • In a batch of 890 calculators, 12 were found to be defective. What is the probability that a calculator chosen at random will be
    11·2 answers
  • Joe Has an 8 foot long board. He needs to cut it into 9 equal length parts.How many feet long should each section of the board b
    10·2 answers
  • A map has a scale of 1:25 000.How many kilometres in actual distance is represented by the length 6.8cm on a map?solution​
    6·1 answer
  • What is 12,140 X 4.0
    6·2 answers
  • How many inches are in 12 feet
    9·2 answers
  • (-7. + 3 + x) - (=6 - 7.3 + 2.)
    11·1 answer
  • Math work plz, i just need to get an answer
    10·2 answers
  • Which expressions are equivalent to -3x+6v+7x14?
    10·1 answer
  • If the opposite of g(x) is –g(x),<br> then –g(x) =
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!