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SVEN [57.7K]
3 years ago
8

Help me with my homework idk how to do it

Mathematics
1 answer:
QveST [7]3 years ago
8 0

Answer:

You have to make an equation

Make everything equal to 180 degrees because a triangle makes 180 degrees

If you need more help I can assist you

Step-by-step explanation:

1.

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Write a function rule for the table- please help
Ipatiy [6.2K]

Answer: The 3rd option

Step-by-step explanation: f(x) aka 5 is = to x aka 2+3 (2+3=5)

Plz make brainliest

7 0
3 years ago
Read 2 more answers
Undefined term which goes on forever in all directions and has no thickness
aksik [14]
Would this be a line?
7 0
3 years ago
HEYYYY NOBODY ANSWER MY MATH QUESTION I ASK THIS MORNING THAT'S NOT FAIR!!!
Leviafan [203]

Answer:

( a+b) (a-b)

x^2 - 50

Step-by-step explanation:

The formula for difference of squares is

a^2 - b^2 = ( a+b) (a-b)

121x^2 -144 = (11x)^2 - 12^2 so this is the difference of squares

x^2 - 16y^2 = (x)^2 - (4y)^2  so this is the difference of squares

9x^2 -64 = (3x)^2-8^2  so this is the difference of squares

x^2 - 50 = (x)^2 - 2*(5)^2  this is not the difference of squares

4 0
2 years ago
Kirsten runs an experiment for her Research Methods class in which she studies vocabulary learning in introductory-level French
Sidana [21]

Answer:

Kristen should use the paired <em>t</em>-test.

Step-by-step explanation:

The dependent t-test (also known as the paired t-test or paired-samples t-test) compares the two means associated groups to conclude if there is a statistically significant difference between these two means.

We use the paired t-test if we have two measurements on the same item, person or thing. We should also use this test if we have two items that are being measured with a unique condition.

For instance, an experimenter tests the effect of a medicine on a group of patients before and after giving the doses.

In this case, Kristen assesses the students' knowledge of French vocabulary at the start of the semester and then again at the end of the semester.

So, she collects data before and after the semester for vocabulary learning in introductory-level French class.

Thus, she is using a paired <em>t</em>-test to analyze whether the French students significantly increased their knowledge of French vocabulary.

The hypothesis is defined as:

<em>H₀</em>: There is no difference between the two means, i.e. <em>μ</em>₁ - <em>μ</em>₂ = 0.

<em>Hₐ</em>: There is a significant difference between the two means, i.e. <em>μ</em>₁ - <em>μ</em>₂ ≠ 0.

The test statistic is:

t =  Sample mean difference ÷ (Standard deviation of difference/ Sample size)

Thus, Kristen should use the paired <em>t</em>-test.

7 0
3 years ago
Solve the folliwing equations.<br>9+4x=-15​
Sophie [7]

Answer:

9 + 4x =  - 5 \\ 4x =  - 5 - 9 \\ 4x =  - 14 \\ x =   \frac{ - 14}{4} \\ x =   \frac{7}{4}  \\ x = 1.75

Step-by-step explanation:

please mark me brainliest

5 0
2 years ago
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