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2 years ago

Find the inverse, picture below!

Mathematics

1 answer:

Setler79 [48]2 years ago

8 0

Answer:

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

Step-by-step explanation:

$y=f(x) = \sqrt x - 7 \\\\\text{Replace x with y and then solve for y:}\\\\~~~~~~~~x= \sqrt y -7\\\\\implies \sqrt y = x+7\\\\\implies y = (x+7)^2\\\\\implies f^{-1}(x) = (x+7)^2$

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Guys please help me with question 1 , 2 and 3 pleaseeee

faust18 [17]

Answer: 10 points, please!

Step-by-step explanation:

1. for the medium you want to find the number thats in the middle. so you have to write out all the numbers in order. then you step by step go to the middle and theres your medium.

0, 2, 2, 2, 3, 3, 3, 3, 3, 3, 5, 5, 6, 6, 7, 11

2, 2, 2, 3, 3, 3, 3, 3, 3, 5, 5, 6, 6, 7

2, 2, 3, 3, 3, 3, 3, 3, 5, 5, 6, 6,
2, 3, 3, 3, 3, 3, 3, 5, 5, 6,

3, 3, 3, 3, 3, 3, 5, 5,

3, 3, 3, 3, 3, 5,

3, 3, 3, 3,
3, 3,

The medium is 3.

2. for the mean you add all the numbers up and then divide based on how many numbers there are.

0 + 2 + 2 + 2 + 3 + 3 + 3 + 3 + 3 + 3 + 5 + 5 + 6 + 6 + 7 + 11 / 16

64/16

the average or mean is 4 which tells us that the average number of kids per houshold is 4. and none of the housholds have 4 children. we know this because of the data in the line plot.

the typical houshold size is either 3 or 4. the medium is 3 and the average or mean is 4.

10 points please

4 0

2 years ago

The irrational number square root 67 is greater than [blank]

Tanya [424]

Answer:

The irrational number square root 67 is greater than whole number 8

Step-by-step explanation:

Given

$\sqrt{67$

Required

Complete the sentence

No options are given.

So, we will solve the expression then compare it with the nearest smallest integer

First, we solve the given expression

$\sqrt{67$

$\sqrt{67} \approx 8.185$

By comparison:

$8.185 > 8$

<em>This implies that, the blank will be completed with 8</em>

3 0

3 years ago

-3 3/4 × 5/6 - 2 2/3 =

Xelga [282]

Answer:

The problem simplified is

Step-by-step explanation:

Exact form: -139/24

Decimal form: -5.791666....

mixed number form: -5 19/24

i hope this really helps

5 0

3 years ago

Read 2 more answers

Solve for x. -3x + 10 =34

Mrrafil [7]

so if u take 10 awa from 34 it be 24

so what times -3 = 24

well a - times a - = a positive so

the answer be -8

6 0

3 years ago

Read 2 more answers

A migrating bird flies 468 miles in 13 hours. how many miles does it fly in 3 hours?

ruslelena [56]

Answer:

The answer is 108mi

Step-by-step explanation:

to solve this problem, we need to write a ratio.

$\frac{468mi}{13hrs}$

to solve for 3 hours, we need to figure out how many miles the bird can fly in 1 hour. to do that, we need to divide the numerator and denominator by 13.

$\frac{36mi}{1hr}$

now we have a unit rate that represents distance covered per hour.

to solve for 3, we need to multiply the numerator and denominator by 3.

$\frac{108mi}{3hrs}$

the question is asking for <u>miles.</u> therefore, the bird can fly 108mi in 3 hrs.

hope this helps!

5 0

3 years ago

Read 2 more answers