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2 years ago

Make k the subject!

Mathematics

1 answer:

pav-90 [236]2 years ago

4 0

The answer is K=-a/b+c/b.

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I have a homework question where I have to estimate the number of dentists in the UK. There is roughly 65,000 people in the UK a

kozerog [31]

I thought I had the answer srry

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3 years ago

Use elimination to solve the system of equations. 2X - 3Y = 9 -5X - 3Y = 30

shtirl [24]

Answer:

X = -3

Y = -5

Step-by-step explanation:

2X - 3Y = 9

- (-5X - 3Y) = 30

7X + 0Y = -21

X = -3

2(-3) - 3Y = 9

- 3Y = 15

Y = -5

6 0

3 years ago

A professor at UCI wants to see what students really remember from their elementary school days, the stuff that was taught or th

denis-greek [22]

Answer:

3. t-test for the difference between means for two related samples.

Step-by-step explanation:

It is given that a professor of UCI wishes to study what really the students remember from their elementary school days and other such stuffs that were very popular at that time.

therefore the professor put forward two test. In one of the test, he put some question from the elementary school and in other he put one question about a pop culture from that time. He used the same sample for both the tests.

So, since the professor involved the same set of students in his experiment for both the tests, so both the samples are related samples.

Therefore, the test uses is a t - test that is used for the difference between the related samples.

3 0

3 years ago

Tangent is positive in quadrants I and IV only. True or False

zhannawk [14.2K]

Answer:

The statement is false

Step-by-step explanation:

we know that

$tan(x)=\frac{sin(x)}{cos(x)}$

The tangent function will be positive when the sine function and the cosine function have the same sign

In the first quadrant the tangent function is positive

In the third quadrant the tangent function is positive

The statement is false

6 0

3 years ago

Read 2 more answers

Which expressions go in which box?

almond37 [142]

To qualify as a polynomial, the expression in question:
* Consists of one or more terms
* Variables are only with positive whole exponents
* No variables in the denominator of any term (the coefficients however, can be fractions.)

In that case the answer is most likely:

3 0

3 years ago