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2 years ago

I need help with this will mark!!

Mathematics

1 answer:

adoni [48]2 years ago

4 0

Answer:

look it up

Step-by-step explanation:

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How to identify the independent and dependent variable?

strojnjashka [21]

Independent-a variable (often denoted by x) whose variation does not depend on that of another

dependant-a variable (often denoted by y) whose value depends on that of another.

8 0

3 years ago

Pls help being timed and I don’t understand

shepuryov [24]

Answer:

f ( -2 ) = 30

g ( -2 ) = 3

Step-by-step explanation:

when it says f(x) and then has f(-2) - you fill in all x's in the equation with -2.. like this:

f(x) = -7(-2-2) +2 g(x) = 2(-2)^2 -5

f(x) = -7(-4) +2 g(x) = 2(4) -5

f(x) = 28 + 2 g(x) = 8 - 5

f(x) = 30 g(x) = 3

hope this helps!!

6 0

3 years ago

If r and s are positive integers, is \small \frac{r}{s} an integer? (1) Every factor of s is also a factor of r. (2) Every prime

Yuri [45]

Answer:

If statement(1) holds true, it is correct that $\small \frac{r}{s}$ is an integer.

If statement(2) holds true, it is not necessarily correct that $\small \frac{r}{s}$ is an integer.

Step-by-step explanation:

Given two positive integers $r$ and $s$ .

To check whether $\small \frac{r}{s}$ is an integer:

Condition (1):

Every factor of $s$ is also a factor of $r$ .

$r \geq s$

Let us consider an example:

$s = 5^2 \cdot 2\\r = 5^3 \cdot 2^2$

$\dfrac{r}{s} = \dfrac{5^3\cdot2^2}{5^2\cdot2} = 10$

which is an integer.

Actually, in this situation $s$ is a factor of $r$ .

Condition 2:

Every prime factor of s is also a prime factor of r.

(But the powers of prime factors need not be equal as we are not given the conditions related to powers of prime factors.)

Let

$r = 2^2\cdot 5\\s =2^4\cdot 5$

$\dfrac{r}{s} = \dfrac{2^3\cdot5}{2^4\cdot5} = \dfrac{1}{2}$

which is not an integer.

So, the answer is:

If statement(1) holds true, it is correct that $\small \frac{r}{s}$ is an integer.

If statement(2) holds true, it is not necessarily correct that $\small \frac{r}{s}$ is an integer.

8 0

3 years ago

I need help :,)

Dmitry_Shevchenko [17]

Answer:

add 17.50 to 8.75 you get 26.25

7 0

2 years ago

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Anyone know these, I’m confused?

alisha [4.7K]

Tuv is equal to 127

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3 years ago

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