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4 years ago

If f(x) = ln(x + 1) - 2, then f-1(x) =

Mathematics

1 answer:

DiKsa [7]4 years ago

4 0

The answer ex + 2<span> - 1</span>

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A coin is flipped five times. Find the number of possible sets of heads and tails that have 0 heads.

Fudgin [204]

Answer:

I think it’s C

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

Please help me im failing

Levart [38]

Answer:

im pretty sure its either c or b

4 0

3 years ago

Find the slope and the equation of the line tangent to f (x )equals StartFraction 2 x minus 1 Over x plus 7 EndFraction at x =

kondor19780726 [428]

Answer:

$y=\frac{5}{27} x-\frac{1}{27}$

Step-by-step explanation:

$f(x)=\frac{2x-1}{x+7}$

To find slope of f(x) at x=2, find the derivative f'(x)

apply quotient rule to find derivative

$f(x)=\frac{2x-1}{x+7}\\f'(x)=\frac{2(x+7)-1(2x-1)}{(x+7)^2} \\f'(x)=\frac{15}{(x+7)^2}$

f'(x) is the slope . Now find slope at x=2. plug in 2 for x

$f'(x)=\frac{15}{(x+7)^2}\\f'(2)=\frac{15}{(2+7)^2}=\frac{5}{27}$

find out f(x) when x=2

$f(x)=\frac{2x-1}{x+7}\\f(2)=\frac{2(2)-1}{2+7}=\frac{1}{3}$

Now frame the equation of the line

(2,1/3) slope = 5/27

$y-y_1=m(x-x_1)\\y-\frac{1}{3}=\frac{5}{27} (x-2)\\y-\frac{1}{3}=\frac{5}{27} x-\frac{10}{27}\\\\y=\frac{5}{27} x-\frac{1}{27}\\\\$

6 0

3 years ago

Write the interval {x|1 < x < 3} as an i inequality<br> and using interval notation.

MA_775_DIABLO [31]

Answer:

1 < x < 3

(1 , 3)

Step-by-step explanation:

We have been provided with a set that is

{x|1 < x < 3}

We have to write it in both as an inequality and also in the form of interval notation.

The inequality can be found easily by just looking at the given set. It states that the set contains x, such that x is greater than 1 and x is smaller than 3, so the inequality can be written as:

1 < x < 3

To write in interval notation, we use brackets, As both 1 and 3 are not included, we'll use round brackets to show the interval.

(1 , 3)

6 0

4 years ago

Please also include an explanation, I'd appreciate it :-)

eduard

Answer:

$30ft$

Step-by-step explanation:

So, since the scale is 1:5, 1 ft is actually 5 feet.

$6ft=6$ × $5. 6x5=30$

6 0

3 years ago