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3 years ago

I need it now it’s important with number 7 and the button one

Mathematics

1 answer:

Sphinxa [80]3 years ago

8 0

His model is incorrect because 20 x 7 is not 14, it is 140. If he had 140 instead of 14, he would have been correct.

I haven't done division like that in a long time, so this is what I think it will look like. I didn't add other work (multiplying 4 with #'s) but you can if you have to

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How many digits are in the decimal expansion of 2^34

Naddika [18.5K]

Answer:

2^34 = 17179869184

I hope this helps :)

7 0

3 years ago

Please just (c)fog-¹

omeli [17]

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

g(x) = (x - 1)/x

The inverse functions f ⁻¹(x) and g ⁻¹(x), if they exist, are such that

f( f ⁻¹(x) ) = x

g( g ⁻¹(x) ) = x

So we have

f( f ⁻¹(x) ) = 1/(1 - f ⁻¹(x) ) = x

Solve for f ⁻¹(x) :

1 = (1 - f ⁻¹(x) ) x

1 - f ⁻¹(x) = 1/x

f ⁻¹(x) = 1 - 1/x

f ⁻¹(x) = (x - 1)/x

and so f ⁻¹(x) = g(x).

Similarly, you can solve for g ⁻¹(x) :

g( g ⁻¹(x) ) = (g ⁻¹(x) - 1) / g ⁻¹(x) = x

1 - 1/g ⁻¹(x) = x

1/g ⁻¹(x) = 1 - x

g ⁻¹(x) = 1/(1 - x)

So we know f(x) and g(x) are inverses of one another,

f ⁻¹(x) = g(x)

g ⁻¹(x) = f(x)

Then

(a) (f o g)(x) = x

(b) (g o f ⁻¹)(x) = g(g(x)) = (g(x) - 1)/g(x) = 1 - 1/g(x) = 1 - x/(x - 1) = 1/(1 - x)

(c) (f o g ⁻¹)(x) = f(f(x)) = 1/(1 - f(x) ) = 1/(1 - 1/(1 - x)) = 1/(x/(x - 1)) = (x - 1)/x

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3 years ago

Find the width of the rectangular prism when the surface area is 208 centimeters

BlackZzzverrR [31]

Use the surface area formula of a rectangular prism to find the width. (I have changed it to use the same terms given in the problem).

(

)

Because of the given information, it is known that:

208

The width is not know, so let it keep it's variable

. But substitute the other values into the equation:

(

)

208

[

(

)

(

)

]

208

(

)

Use the distributive property to solve the right side of the equal sign:

208

(

)

208

112

The width is

5 0

4 years ago

If a=2,b=1 and c=1 than evalute ab+bc

ratelena [41]

Answer:

Step-by-step explanation:

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Answer:

Step-by-step explanation:

15 + 12 = 27

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