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3 years ago

Plzzz help....I am timed...There will be a picture provided....You will get 30 points!!! MATHH

Mathematics

2 answers:

AURORKA [14]3 years ago

6 0

Answer: The last answer

Step-by-step explanation:

She made a mistake with her signs and put -256 instead of 256

xxMikexx [17]3 years ago

3 0

Answer:

It should be the last one, She made a sign error when multiplying.

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13 19/40 more lbs

step-by-step explanation:

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3 years ago

Which equation has no solution?

RUDIKE [14]

Answer: B

Step-by-step explanation:

4(x+3)+2x=6(x+2)

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3 years ago

Inverse Function In Exercise,analytically show that the functions are inverse functions.Then use the graphing utility to show th

DanielleElmas [232]

Answer:

$g^{-1}(x)=f(x)=e^{\frac{x}{3}}$

Step-by-step explanation:

We have been given two functions as $g(x)=\text{ln}(x^3)$ and $f(x)=e^{\frac{x}{3}}$ . We are asked to show that both functions are inverse of each other algebraically and graphically.

Let us find inverse function of $g(x)=\text{ln}(x^3)$ as:

$y=\text{ln}(x^3)$

Interchange x and y values:

$x=\text{ln}(y^3)$

Using log property $\text{ln}(a^b)=b\cdot \text{ln}(a)$ , we will get:

$x=3\cdot \text{ln}(y)$

$\frac{x}{3}=\frac{3\cdot \text{ln}(y)}{3}$

$\frac{x}{3}=\text{ln}(y)$

Using log definition; If $\text{log}_a(b)=c$ , then $b=a^c$ , we will get:

$y=e^{\frac{x}{3}}$

$g^{-1}(x)=e^{\frac{x}{3}}$

Therefore, we can see that function $f(x)=e^{\frac{x}{3}}$ is inverse of function $g(x)=\text{ln}(x^3)$ .

We can see that both functions are symmetric about line $y=x$ , therefore, both functions are inverse of each other.

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4 years ago

Simplest form 816/10

Katyanochek1 [597]

Answer: The answer is 408/5 , as a mixed number = ( 81 3/5)

~hope this helps!~

Step-by-step explanation:

4 0

3 years ago

If the hypotenyse of an isosceles triangle is 8 inches, is there enough information to find the length of the legs? If yes, find

OLga [1]

Answer: 5..6 in.

Step-by-step explanation:

Given

Hypotenuse of isosceles triangle is 8 inches

In isosceles triangle two sides are equal

Suppose the other side is x

Using Pythagoras we can write

$\Rightarrow x^2+x^2=8^2\\\Rightarrow 2x^2=64\\\Rightarrow x^2=32\\\Rightarrow x=4\sqrt{2}\approx 5.6\ in.$

Therefore, the lengths of the legs is 5.6 inches

3 0

4 years ago