3 years ago

An equation is shown 27+18 (3+2) What factor is missing from the equation?

2 answers:

5 0

$\mathbb{\pink{\huge{Hello\:Mate!!}}}$

$Answer$

$Equal sign is missing out there.$

$Step-by-step explanation.$

If it is an equation, there must be equal sign present. It means, we are equating something. If there is equal sign, then it can't be an equation.

$Thanks....!$

With♥️

Annette [7]3 years ago

3 0

The answer is 9 because 27+18 is equal to 45 and ?(3+2) since we all know that 3+2=5 and that 5 goes into 45 nine times that the answer is 9 because basically 45 divided by 5 is 9

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The function f(x) is an increasing function about which little else is known about other than f(2)=7 and f'(2)=5. Find (f^-1)'(7

andreyandreev [35.5K]

Since f(x) is (strictly) increasing, we know that it is one-to-one and has an inverse f^(-1)(x). Then we can apply the inverse function theorem. Suppose f(a) = b and a = f^(-1)(b). By definition of inverse function, we have

f^(-1)(f(x)) = x

Differentiating with the chain rule gives

(f^(-1))'(f(x)) f'(x) = 1

so that

(f^(-1))'(f(x)) = 1/f'(x)

Let x = a; then

(f^(-1))'(f(a)) = 1/f'(a)

(f^(-1))'(b) = 1/f'(a)

In particular, we take a = 2 and b = 7; then

(f^(-1))'(7) = 1/f'(2) = 1/5

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3 years ago

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3 years ago

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seraphim [82]

Answer:

b. (1, 13).

Step-by-step explanation:

Here's a pic of my work. You can put either equation on the other side of the equal sign, because they both equal Y. therefore, they equal each other.