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3 years ago

E=I×R and P=E×I what is the formula that will solve for R when only E and I are known

1 answer:

4 0

You wrote it there yourself, at the beginning of your question.

You wrote E = I x R

Divide each side by ' I ' : E / I = R

That's what you're asking for. ^

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What is the inverse of the function of (x)=2^(x)+6

Elden [556K]

Answer:

Option D.

Step-by-step explanation:

To find the inversion of a function follow the following procedure

1) Replace x with y in the function and clear y

$y=2^{(x)} + 6$ ------> $x = 2^{(y)}+ 6$

$x-6 = 2^y$

$y = log_2(x-6)$

2) Check. The range of f(x) is the domain of $f^{-1}(x)$ .

So if f(a) = b, this means that $f^{-1}(b)$ = a.

$f(2) = 2^2+ 6 = 10$

$f^{-1}(x) = log_2(10-6) = 2$

Is fulfilled. Therefore $y=log_2(x-6)$ is the inverse of $f(x) = 2^{(x)} +6$

7 0

3 years ago

If you know the names of the remaining nine students in the spelling bee, what is the probability of randomly selecting an orde

Mademuasel [1]

Answer:

1 / 362880

Step-by-step explanation:

There are 9 possible names that could be first.

After that, there are 8 possible names that could be second.

After that, there are 7 possible names that could be third.

So on and so forth.

So the number of permutations is:

9×8×7×6×... = 9! = 362880

The probability of randomly selecting the one order used in the spelling bee is therefore:

P = 1 / 362880

4 0

3 years ago

What is the additive inverse of the complex number 9 Ă˘â‚¬"" 4i? Ă˘â‚¬""9 Ă˘â‚¬"" 4i Ă˘â‚¬""9 4i 9 Ă˘â‚¬"" 4i 9 4i.

hram777 [196]

Additive inverse is the number you add to a given number to make the sum zero. The addition of both the number must be zero to make both numbers additive inverse.. The additive inverse of the given complex number is

$-9+4i$

<h3>Addictive Inverse</h3>

Addictive Inverse-Additive inverse is the number you add to a given number to make the sum zero. The addition of both the number must be zero to make both numbers additive inverse.

Let an example, if we take the number 10 and add -10 to it. Thus -10 is the additive inverse of the number 10.

Here, the given number is a complex number. A complex number is a number of the form a + bi, where a and b are real numbers. The given function is,

$9-4i$