All categories

3 years ago

What is the inverse function of number 20 and how do you get the inverse?

Mathematics

1 answer:

mariarad [96]3 years ago

7 0

I hope this helps you

(f (x))^2= (square root of x-2)^2

f^2 (x)=x-2

x=f^2 (x)+2

f^-1 (x)=x^2+2

You might be interested in

(5-2 to the power of 2) multiplied by (5-2 to the power of 2)

mezya [45]

Answer:

I think that 1 is the answer, thats what came out on my calculator.

Step-by-step explanation:

6 0

3 years ago

if a motercycle is moving at a constant speed down the highway of 40 km/hr, how long would it the motorcycle to travel 10 km

ahrayia [7]

Answer:

15 minutes

Step-by-step explanation:

First, the motorcycle goes at a speed of 40 km/hr.

The question asks for how long it would take to travel 10 km.

Well, there are 60 minutes in an hour, since we will be translating into minutes.

Also, 10 km is 1/4 of 40 km, so it would make sense that the time length would be 1/4 of an hour as well.

1/4 of 60 minutes is 15 minutes. So it takes 15 minutes for the motorcycle to travel 10 km.

Now, if all this wordy stuff is too much to comprehend, you can also solve using proportional relationships.

$\frac{40km}{60min}=\frac{10km}{xmin}$

Now cross multiply:

$40km*xmin=10km*60min\\40x=600$

Divide both sides by 40:

$\frac{40x}{40}=\frac{600}{40}\\x=15$

Again, this shows that it wouls take 15 minutes for the motorcycle to travel 10 km.

6 0

3 years ago

Solve for Inequality

uysha [10]

Answer:

x > -1

Step-by-step explanation:

Divide the whole inequality by 9.

( $\frac{x}{3}$ +1)> $\frac{6}{9}$

Subtract 1.

$\frac{x}{3}$ > $\frac{2}{3}$ - 1

$\frac{x}{3}$ > - $\frac{1}{3}$

Multiply by 3.

x > -1

6 0

4 years ago

The area of a triangle is 24 square inches. What is the height of the triangle if the base length is 4 inches?

snow_tiger [21]

A = b*h*0.5
24 = 4*0.5*h
24 = 2*h
h = 12

Height is 12 inches.

7 0

3 years ago

Read 2 more answers

Jenna sold 63 bracelets at one craft show and 36 and another which expression correctly applies the distributive property to sho

aev [14]

Answer:

C . 63 + 36 = 9(7 + 4)

Step-by-step explanation:

Jenna sold 63 bracelets at one craft fair and 36 bracelets at a second craft fair. Which expression correctly applies the distributive property to show equivalent expressions for the total number of bracelets she sold?

63 + 36 = (3)(21) + (9)(4)

63 + 36 = (7)(9) + (12)(3)

63 + 36 = 9(7 + 4)

63 + 36 = 3(21 + 9)

To “distribute” means to divide something or give a share or part of something.

According to the distributive property, multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.

To determine the distributive property to show equivalent expression, find the common factors of 63 and 36

63 = 3, 7, 9, 21,

36 = 2, 3, 4, 6, 9, 12, 18,

Common factors of 63 and 36 are 3 and 9

Using 3

3(21 + 12)

Using 9

9(7 + 4)

3(21 + 12) is not one of the options, therefore, 9(7 + 4) is the answer

Option C gives the distributive property

63 + 36 = 9(7 + 4)

63 + 36 = 63 + 36

3 0

3 years ago