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horrorfan [7]
2 years ago
14

Actorize Completely PQ+ PR - RQ -Q²​

Mathematics
1 answer:
sp2606 [1]2 years ago
8 0

Answer:

(Q + R)(P - Q)

Step-by-step explanation:

PQ + PR - RQ - Q²​ = (Q + R)(P - Q)

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Given that f(x) is even and g(x) is odd, determine whether each function is even, odd, or neither. (f • g)(x) = ? (g • g)(x) = ?
vekshin1

Answer:

<h2>(f · g)(x) is odd</h2><h2>(g · g)(x) is even</h2>

Step-by-step explanation:

If f(x) is even, then f(-x) = f(x).

If g(x) is odd, then g(-x) = -g(x).

(f · g)(x) = f(x) · g(x)

Check:

(f · g)(-x) = f(-x) · g(-x) = f(x) · [-g(x)] = -[f(x) · g(x)] = -(f · g)(x)

(f · g)(-x) = -(f · g)(x) - odd

(g · g)(x) = g(x) · g(x)

Check:

(g · g)(-x) = g(-x) · g(-x) = [-g(x)] · [-g(x)] = g(x) · g(x) = (g · g)(x)

(g · g)(-x) = (g · g)(x) - even

7 0
3 years ago
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Is it true or false?
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Answer:

False

Step-by-step explanation:

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Hypothesis testing on samples with fewer than 30 participants can be carried out by using the t-value for the corresponding leve
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Answer: true

Step-by-step explanation:

Z-tests are statistical calculations that can be used to compare the population mean to a sample mean The z-score is used to tellsbhow far in standard deviations a data point is from the mean of the data set. z-test compares a sample to a defined population and is typically used for dealing with problems relating to large samples (n > 30). Z-tests can also be used to test a hypothesis. Z-test is most useful when the standard deviation is known.

Like z-tests, t-tests are used to test a hypothesis, but a t-test asks whether a difference between the means of two groups is not likely to have occurred because of random chance. Usually, t-tests are used when dealing with problems with a small sample size (n < 30).

Both tests (z-tests and t-tests) are used in data with normal distribution (a sample data or population data that is evenly distributed around the mean).

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4 years ago
Can someone help me fill in the proofs and statements?
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Answer:

3. they are both equvilent.

4. onl makes a right angle and mnl makes an upside down right angle.

5.makes a definition.

Step-by-step explanation:


3 0
3 years ago
Algebra please help(no links)
lesya [120]

Answer:

i can't help with this specific queshtion  but i do have tow say to things 1. when you post something like this make sure to crop out anything that people can see your info or anything like block out the tabs someone could see that and use it for evil be careful with this, second i do aleks to.

 

Step-by-step explanation:

im sorry i could not help you in the way you wanted but i hop you will be safe now!

dont make me brainlyest i dont deserve it i did not give you you answer

Have a nice day!

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