Mathematics College

Identify the errors made in finding the inverse of
y = x2 + 12x.
x= y2 + 12x
y2 = x - 12x
y2=-11x
y=-11x, for x > 0
Describe the three errors?

Answers

Answer 1

Step-by-step explanation:

y = x2 + 12x.

x= y2 + 12x would also be 12 y

y2 = x - 12x would be -x

y2=-11x

y=[tex]\sqrt{-11x}[/tex], for x > 0 negative square root not possible

Describe the three errors?

Answer 2

The three errors made in finding the inverse of y = x² + 12x are,

⇒ First mistake to write 12y in place of 12x.

⇒ Second mistake to write the expression y² = x - 12x.

⇒ Third mistake because it never possible negative square root for x > 0.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

We have to given that;

The expression is,

⇒ y = x² + 12x

Here, The process are,

⇒ y = x² + 12x.

⇒ x = y² + 12x

There is first mistake to write 12y in place of 12x.

⇒ y² = x - 12x

There is second mistake.

⇒ y² = -11x

⇒ y = √-11x, for x > 0

There is third mistake because it never possible negative square root for x > 0.

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ2

Related Questions

multiple of 2 and 5 which is 2 more than the third multiple of 6

Plz with steps..

Answers

Answer:

Step-by-step explanation:

the third multiple of 6 is 18

20 = 2+18

and it's also a multiple of 2 and 5

Answer:

5x2 -2

Step-by-step explanation:

when you times 2 and 5 it gives you ten when you minus it by 2 you get eight so six plus two equal to eight so that is your answer my friend

When multiplying, the answer is negative when you:

A: multiply a positive (+) times a negative (-)

B: multiply a negative (-) times a negative (-)

C: multiply a positive (+) times a positive (+)

Answers

Step-by-step explanation:

b: multiplying a negative (-) by a negative (-)

Laura bought some books. She spent a total of $71 after a discount of $5 off of her total purchase. Each book cost $4. How many books did she buy?

Answers

Answer:

4b-5=71

19 books

Step-by-step explanation:

b represents books, and 4 is the cost, so the cost (4•19) minus the discount (-5) equals 71 and solves the equation

Function or Non-Function

Answers

Answer:

2 is not a function.

3 is a function

Step-by-step explanation:

one x value should each have a line leading off it. there are 2 y values for one x values in question 2 so its not a function

••••••••••••••••••••••••••••••

Answers

Answer:

D. 7

Step-by-step explanation:

substitute -1 everywhere there is an x

5-2(-1) multiply

5-(-2) add

A tank is being filled up with water. At t=0, we know that the tank holds 150 gallons of
water, and after one hour ( t=1) , it holds 180 gallon of water.

Answers

Answer:

What is the question?

Step-by-step explanation:

Answer: The initial value is 150 and the rate of change is 30

150+30x=y

A rectangular based prism has a length of
23cm, a width of 28cm, and a height of 11m.
Find its volume.

Answers

Answer:

7,084 cm^3

Step-by-step explanation:

To calculate volume you have to take all three measurements and multiply them as so: x times y times z. In this case x = 23 y = 28 and z = 11. When you multiply these 3 numbers together you will get 7,048 cm^3.

Answer:

7,084 cubic cm

Step-by-step explanation:

V = 23 x 28 x 11

Robert bough 3/4 pound of grapes and divided them into 6 equal portions.
What is the weight of each portion?
*

Answers

Answer: The answer should be 0.125

Step-by-step explanation:

carly mowed 2 more lawns than Roco each week for 6 weeks. carly mowed a total of 18 lawns. how many did Rocco mow each week?

Answers

Answer:

Rocco mowed 1 lawn a week.

Step-by-step explanation:

If Carly mowed 18 lawns in six weeks that’s 3 lawns a week and 3-2=1.

Thus Rocco mowed 1 lawn a week.

Please helppp!! I suck at math

Answers

Answer:

5/6−1/9=13/18

Step-by-step explanation:

The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.

Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.

(5/6×3/3)−(1/9×2/2)=?

Complete the multiplication and the equation becomes

15/18−2/18=?

The two fractions now have like denominators so you can subtract the numerators.

Then:

15−2/18=13/18

This fraction cannot be reduced.

Therefore:

5/6−1/9=13/18

ILL GIVE YOU BRAINLIEST IF YOU HELP ME

Answers

Answer:

y = (1/2) x - 2

Step-by-step explanation:

Let us consider the points (- 2, - 3) & (0, - 2)

Equation of line in two point form is given as:

[y-(-3)]/[-3-(-2)] = [x - (-2)]/[-2 - 0]

(y + 3)/(-3 +2) = (x + 2)/ (-2)

(y + 3)/(-1) = (x + 2)/(-2)

(y + 3)/(1) = (x + 2)/(2)

2(y + 3) = (x + 2)

2y + 6 = x + 2

2y = x + 2 - 6

2y = x - 4

y = (1/2) x - 2

PROCEED IN THE SAME WAY TO FIND OUT THE REMAINING FUNCTIONS.

the questions on a multiple-choice test each have 4 answer choices. Describe a model that you could use to simulate the outcome of guessing the correct answer to a 100 questioned test

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Answer:

Step-by-step explanation: because u have to divide the 4 100 than the ratio 25% it would give u 2

A car travels 55 miles per hour for two hours. Complete the table. HELP 20 points!!!!!!!!!

Answers

Answer: If a car travels 55 miles per hour for 2 hours it will be 110 hour I guess

Step-by-step explanation: I think you want help here um I’m in 7th grade I don’t think I like this before but I can try to answer it, Is this h-help you

Help if your smart plzzzzzzz
( will give 35 pts and brainliest)

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Answer:

a) alternate interior angles theorem

b) OXP ≅ XOL

c) XO ≅ OX

d) reflexive property (i'm not sure about this one)

e) ΔXOP ≅ ΔOXL

f) cpctc

make sure to double check the fourth one

Which equation could generate the curve in a graph below?

Answers

pretty sure its the 3rd one

Uhh maybe 3? I think???

Find the value of x. Everything is in the photo.

Answers

Answer:

Step-by-step explanation:

Note that since VX and XZ are both line segments, <VWX and <XYZ both equal 180 (also known as a straight angle). Also, note that the sum of the angles in a triangle are 180 degrees. Now, let’s start.

Finding angles of the triangle:

<WYX = <XYZ - <WYZ = 180 - 4x

<XWY = <XWV - <VWY = 180 - 6x

Using the sum of angles in a triangle and substituting these values in:

180 = <X + <WYX + <XWY = 90 + (180 - 4x) + (180-6x) = 450 - 10x

270 = 10x

27 = x

We are done! I hope this helps! :)

Given that the triangles shown below are similar, what is the value of x?
D
32
40
16
20
H
48
M
P
X
L
A. 20
O
B. 10.7
O
C. 96
O D. 24

Answers

Answer:

the answer is D. 24

Step-by-step explanation:

the smaller triangle is half the size of the bigger triangle so just divide 48 by 2

Answer: D

Why?

Question tells you that both triangles are similar, but the obvious difference is that one is smaller than the other.

As u can see HA = PD
32 = 16
The difference is 2

By dividing the value of HM (which is 48) u can get the answer 24.

Therefore the answer is D

What is the range of h

Answers

“B” is the answer I think

Dan, Richard and Nick share £70 in a ratio 1:3:1. How much money does each person get?
Dan:
£

Richard:
£

Nick:
£

Answers

Answer:

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If there are 13 pretzels in each cup, How many pretzels does He eat?

Answers

How many cups are there? You are missing information.

Answer:

Step-by-step explanation:

2. The sum of two numbers is 67 and their difference is 3. Find the two numbers.

Answers

Answer:

35 and 32

Step-by-step explanation:

35 and 32

because when we add 35 and 32 then their sum is 67

when we subtract 35 and 32 then their difference is 3

I hope u understand it

A person invests 4000 dollars in a bank. The bank pays 6.25% interest compounded
annually. To the nearest tenth of a year, how long must the person leave the money
in the bank until it reaches 9600 dollars?

Answers

Answer:

14.4

Step-by-step explanation:

Given that :

Principal = 4000

Interest (r) = 6.25% compounded annually

Calculate time, t, if final amount A = 9600

Using the compound interest formula :

A = P(1 + r/n)^n*t

A = final amount

n = number of times interest is applied per period

9600 = 4000(1 + 0.0625)^t

9600 = 4000(1.0625)^t

9600/4000 = 1.0625^t

2.4 = 1.0625^t

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0.3802112 = 0.0263289t

t = 0.3802112/0.0263289

t = 14.440811

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25 points question is below

Answers

Answer:

x - 5y = 30

Step-by-step explanation:

If you subtract x from both equations, you'll get -x. If you divide -5y, you'll end up with 1/5x and 6. The intercept doesn't matter but the slopes are parallel which means they'll never intersect anyway

good answer also makes a lot of sense you are correct

4. The perimeters of the rectangle and the triangle below are equal. Find the value of x.

Answers

Answer:

x=6

Step-by-step explanation:

the perimeter of the rectangle is equal to 2x + 16.

the perimeter of the triangle is equal to 3x + 10.

since they are equal now you can solve by saying 2x + 16 = 3x + 10

Now you solve for x

2x + 16 = 3x + 10

2x + 6 = 3x

6 = x

What is an equation in point-slope form the line that passes through the point (-3,5) and (2,-3)?

Answer
Y-5=-8/5 (x+3)

Answers

Answer:

Y-5=-8/5 (x+3)

Step-by-step explanation:

Answer:

Y-5=-8/5 (x+3) good luck

What is the slope of the line through the points (-2, -1) and (4, 3)?
Group of answer choices
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3/2

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2/5

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The answer should be 2/3

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Answer:

the 1st one!

Step-by-step explanation:

Find the indicated term of the arithmetic sequence.

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Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

plz give brainliest

Solve the proportion. 8/11 = 4/y + 2

Answers

Answer:

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Step-by-step explanation:

The parenthesis do not mean anything write 22/7 as a fraction.. why did you report my answer so rude

Which of the following was included in the “Declaration of the People”?

Texians wanted the Constitution of 1824 reestablished.

Texians wanted George Washington to be president instead of Santa Anna.

Texians considered themselves independent from Mexico,

The people of Texas want more restaurants.

Answers

Answer:

Step-by-step explanation:

Texas was not around during George Washington so that cant be correct

Texas was not around during the constitution of 1824

Texas did not want more restaurants lol

So Texans considered themselves independent from Mexico is correct

Answer:

Step-by-step explanation:Texas was not around during George Washington so that cant be correct Texas was not around during the constitution of 1824 Texas did not want more restaurants So Texans considered themselves independent from Mexico is correct

took it on edge 2020 and got it write with this

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Identify the errors made in finding the inverse of y = x2 + 12x. x= y2 + 12x y2 = x - 12x y2=-11x y=-11x, for x > 0 Describe the three errors?

Answers

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Identify the errors made in finding the inverse of
y = x2 + 12x.
x= y2 + 12x
y2 = x - 12x
y2=-11x
y=-11x, for x > 0
Describe the three errors?