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vovikov84 [41]
3 years ago
15

PLEASE HELP ASAP!! Determine the value of k that would make these two functions inverses.

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
5 0

Answer: K = 6

Step-by-step explanation:

If you find the inverse of the inverse function, it will return back to initial function.

The inverse of r^-1 (x) will give r(x).

To find the inverse of r^-1(x), let it be equal to y. Interchange y and x for each other and make y the subject of formula. That is,

Y = 2x^2 - 14

Interchange y for x

X = 2y^2 - 14

2y^2 = x + 14

Y^2 = x/2 + 14/2

Square both side

Y = sqrt ( x/2 + 7 )

It is only when K = 6, that will can get the value above.

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Step-by-step explanation:

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3 years ago
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3 years ago
1 Let a = 5.2 and b = 4.7.
Alina [70]

Part (a)

Replace every 'a' with 5.2 and replace every 'b' with 4.7

Then use your calculator to evaluate.

3a + b^3 = 3*5.2 + (4.7)^3 = 119.423

<h3>Answer: 119.423</h3>

===============================================

Part (b)

The true value is 119.423 which is the result of part (a)

The estimated value is 140

Subtract the two values

140-119.423 = 20.577

and divide that over the true value

20.577/140 = 0.14697857142858

Which, when rounded to 4 decimal places, we get 0.1470

Move the decimal place over to the right 2 spots to get 14.70%

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7 0
3 years ago
Eva wants to know the probability of tossing “heads” at least three times out of five. She used the random number table to simul
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Below, the simulated numbers with 3 or more odd digits are bolded.
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4 years ago
If 2 angles are both right angles then they are congruent. Would the converse of this statement be true?
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The statement is: If 2 angles are both right angles then they are congruent.

To find:

The converse of the given statement and then check whether it is true or not.

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We know that,

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Converse : If q, then p.

The statement is: If 2 angles are both right angles then they are congruent.

So, the converse of this statement is:

If 2 angles are congruent then both are right angles.

This statement is not true because if 2 angles are congruent then it is not necessary that the angles are right angles.

Therefore, the converse of this statement is not true.

4 0
3 years ago
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