2 years ago

Double bar graphs compare multiple

Mathematics

1 answer:

kykrilka [37]2 years ago

4 0

Compares Two data sets

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For the function f (x) = 3 (x + 7), find -1().

AlekseyPX

Given:

The function is $f(x)=3(x+7)^{\frac{1}{4}}$ .

To find:

The function $f^{-1}(x)$ .

Solution:

We have,

$f(x)=3(x+7)^{\frac{1}{4}}$

Substitute f(x)=y.

$y=3(x+7)^{\frac{1}{4}}$

Interchange x and y.

$x=3(y+7)^{\frac{1}{4}}$

Divide both sides by 3.

$\dfrac{x}{3}=(y+7)^{\frac{1}{4}}$

Taking power 4 on both sides.

$\left(\dfrac{x}{3}\right)^4=y+7$

Subtract 7 from both sides.

$\left(\dfrac{x}{3}\right)^4-7=y$

$y=\left(\dfrac{x}{3}\right)^4-7$

Substitute $y=f^{-1}(x)$ .

$f^{-1}(x)=\left(\dfrac{x}{3}\right)^4-7$

Therefore, the correct option is C.

5 0

2 years ago

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Consider the eq

Deffense [45]

To solve for x in terms of b, simply treat b as a number, and solve for x as usual: first of all, we expand the left hand side:

$-2bx+10 = 16$

Subtract 10 from both sides:

$-2bx = 6$

Divide both sides by -2b:

$x = \cfrac{6}{-2b} = \cfrac{-3}{b}$

This means that in particular, if we set $b= 3$ , we have

$x = \cfrac{-3}{3} = -1$

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2 years ago

A battery is charged The percentage of the battery that is charged as a fiction of time (in minutes) is graphed. At what rate is

Marat540 [252]

Answer:

the battery rate is 6.5

Step-by-step explanation:

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2 years ago

Help me please please

Burka [1]

Answer:

-3/2

Step-by-step explanation:

(y2 -y1)/(x2-x1)

(-2 + 5)/(0 - 2)

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2 years ago

What is 6% of 7000.00

cluponka [151]

6% of 100 is 6

100*70 = 7000

6*70 = 420

therefore
6% of 7000 = 0.06 * 7000= 420

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2 years ago