Choose the inverse of y = x2 – 10x.

Choose The Inverse Of Y = X2 10x.

Answers

Answer 1

Answer:

The inverse is  5±sqrt(x+25)

Step-by-step explanation:

y = x^2 - 10x

To find the inverse, exchange x and y and solve for y

x = y^2 -10y

Complete the square

x+25 = y^2 -10y +25

x+25 = (y-5)^2

Take the square root of each side

±sqrt(x+25) = y-5

Add 5 to each side

5±sqrt(x+25) = y

The inverse is  5±sqrt(x+25)

Answer 2

Answer:

[tex]y=\pm\sqrt{x+25}+5[/tex]

Step-by-step explanation:

Given function:

[tex]y=x^2-10x[/tex]

Rearrange to make [tex]x[/tex] the subject.

First, complete the square by adding 25 to both sides and factoring:

[tex]y+25=x^2-10x+25[/tex]

[tex]y+25=(x-5)^2[/tex]

Square root both sides:

[tex]\pm\sqrt{y+25}=x-5[/tex]

Add 5 to both sides:

[tex]x=\pm\sqrt{y+25}+5[/tex]

Finally, swap [tex]x[/tex] and [tex]y[/tex] (since the inverse of a function is its reflection in the line [tex]y = x[/tex])

[tex]y=\pm\sqrt{x+25}+5[/tex]


Related Questions

I need help please please

Answers

Answer:

translation then reflection

Step-by-step explanation:

because to get 2 it is moved then to get 3 it is reflected  (please try doing these yourself first!)

Answer:

D

Step-by-step explanation:

Translates left and down then reflects over y.

Question 4 of 5
Select the correct answer.

Sebastian randomly surveyed 25 people in his neighborhood to find out which electric company they use. In his survey, he found that
16% of the sample use Reliable Energy

What would most likely happen if he decided to randomly survey 50 people instead?

A. There is not enough information to determine how the sample proportion would be affected.

B.The sample proportion would less closely model the population proportion.

C. The sample proportion would not be affected.

D The sample proportion would more closely model the population proportion.

Answers

Answer:

D The sample proportion would more closely model the population proportion.

Step-by-step explanation:

The more people surveyed, the more accurate the information.

6x8(1+1)-3+4 SUPER HARD QUESTION PLEASE HELP

Answers

Answer:

97

Step-by-step explanation:

PEMDAS

6 * 8 * (1 + 1) - 3 + 4

Parenthesis first!

6 * 8 * 2 - 3 + 4

Multiplication/Division {Left to right}

48 * 2 - 3 + 4

96 - 3 + 4

Addition/Subtraction {Left to right}

93 + 4

97

What are the units of measure for volume? Square units Cubic units

Answers

Answer:

Step-by-step explanation:

i think it is mostly milliliters (ml)  and liters (l)  but i think sometimes cubic meter (m³) is used.

find the difference between the actual and estimated values of 55 - 21​

Answers

Answer:

Actual: 34 Estimated: 40

Step-by-step explanation:

The difference between these values is that the actual difference is more accurate. If you're asking for the difference as in subtracting, then 7 is the answer. Hope this helps :)

Answer:

6

Step-by-step explanation:

Actual values = 55 - 21

                         = 34

Estimated values = 60 - 20 = 40

Difference between actual and estimated values = 40 - 34 = 6

1) Suppose Emily randomly turns on 2 of the 7 computers. Which
expression could you use to determine the probability that both
computers will be infected with a virus?
A 2/7*1/6
B) 1/7* 1/7
C)2/7*1/6
D)2/7*5/7

Help me please

Answers

Answer:

b jdjjsgd

Step-by-step explanation:

edge 2020hianhisis

an intercepted arc has a length of 19 yards. If the radius is 4 yards, find the measure of the central angle in radians and degrees.

Answers

Answer:

[tex]s=r\theta\\\theta=s/r\\\theta=19/4\\\theta=4.75[/tex]

Step-by-step explanation:

There is a formula that relates the arc length of a circle of radius, r, to the central angle, [tex]\theta[/tex] in radians.

[tex]s=r\theta[/tex]

help please!! 10 points!

Answers

Here are the steps:

log x/ y^9

log x - log y^9

log x - 9log y

If you want me to explain the rules I’m using more in depth lmk!


The price of a calculator depends on the number of these calculators you buy.
The table gives information about the prices of this calculator.
Number of calculators
Price of each calculator
1-29
£3.85
30-99
£3.65
100 or more
£3.49
Mr Edwards wants to buy some of these calculators.
He has £200 to spend.
Work out the greatest number of calculators he can buy.

Answers

There are many ways you can approach this problem but the easiest and most understandable way is really simple,So we know that for the first 29 calculators he has to spend £3.85 on each.

So assuming he bought the entire 29 calculators he would've spent:

[tex]29 \times 3.85 = 111.65[/tex]

That leaves him with,

[tex]200 - 111.65 = 88.35[/tex]

Looking back at the prices i'm assuming there is no way he can reach 99 calculators with what he has left, so i will establish an equation that defines the number of calculators he can buy with the remaining £88.35.

Let c be the number of calculators he can still buy. Note that we are working in the 30-99 range so each calculator costs £3.65

[tex]88.35 = 3.65c[/tex]

[tex]c = \frac{88.35}{3.65} = 24.2[/tex]

So now we know he can still buy 24 calculators in addition to the 29 calculators, so in total he bought,

[tex]29 + 24 = 53[/tex]

Your answer would be 53 calculators.

What about the 0.2 remaining 'calculators',well that would be left over money which aren't sufficient to purchase an additional calculator+we were working with the 30-99 range meaning each one costs £3.65

[tex]0.2 \times 3.65 = 0.73[/tex]

So he bought 53 calculators and has 0.73£ remaining.

Hope this helps :)

In Ty's CD collection, 3/8 of the CDs are hip-hop and 1/8 of the CDs are pop. What fraction of his CDs are either hip-hop or pop?

Answers

2/3 (two thirds) are hip hop and 1/3 (one third) is pop

1 What is the remainder when 245 is divided by 9?
2 A bridge in the park is 84 feet long. The length of the bridge is 6 times the width of the bridge. How wide is the bridge?
3 Dylan gets home from school at 4:05 p.m. He spends 20 minutes on his homework and 15 minutes practicing the drums. How many minutes does he have left before leaving for soccer practice at 5:15 p.m.?

Answers

Answer:

245÷9 =0 witt remainder 9

The 6 games Kelly's team played took a total of 7 hours. How many minutes total did they play softball?​

Answers

There is 420 minutes in 7 hours.
1 hour = 60 minutes
60 times 7 would be 420

Is 4.25 a rational number

Answers

Answer:

Yes 4.25 is a rational number

Answer: Yes, 4.25 is a rational number

Any terminating decimal can be written as a fraction of two integers.

In this case, 4.25 = 4.25/1.00 = 425/100

Help help help help

Answers

Answer:

its the 3 one

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Rotates 270 Degrees clockwise and translates left and up.

How many ounces are in 43 pounds?

Group of answer choices

Answers

The answer is 688 ounces. You can get this by multiplying the mass value by 16. Please consider Brainliest!

How do you Simplify 4c+c+6c

Answers

Answer:

11c

Step-by-step explanation:

They are like terms meaning they all have the same variable you can just add them.

4c+c+6c

11c

Answer:

11c

Explanation:

We are given the expression:

4c+c+6c

We can simplify by combining like terms.  All three terms have a “c” so they can all be combined.

Factor out a “c” and add the coefficients.

4c+1c+6c

(4+1+6)c

(11)c

11c

4c+c+6c simplified is 11c

Please help me asap !!

Answers

Answer:

3.5

Step-by-step explanation:

(42 - 14)/(12 - 4) = 28/8 = 7/2 = 3.5

Can you help me please

Answers

Answer:

No, the slope's are not the same

Short-cut explanation:

Simply count the spaces between the two lines at the very top then compare to the number of space between at the very bottom of the graph.

There are 2 spaces between the two lines at the top. There seems to be 1 and 1/2 spaces at the very bottom.

[tex]2\neq 1.5[/tex] , therefore, not parallel.

If they are the same, then it is parallel. Although, in this case, it is not(Shown on the graph).

Answer:

Basic Concept:

A criterion for parallel lines is that they should have equal slopes. If the slopes of these lines is equal, these lines are parallel and are intersecting if the slopes are not equal

let the line on the left be 'line 1' and the line on the right be 'line 2'

Slope of Line 1:

We are given 2 points on the line and we will use them to get its slope

We know that the slope of a line is the change in its y-ordinate divided by its change in x - ordinate

The points given are:      (-3 , -5)              and           (0 , 4)

Change in x:

The change in x of these 2 coordinates can be calculated by subtracting their x- ordinates

Change in x (Δx) = x1 - x2

Δx = -3 - 0

Δx = -3

Change in y:

The change in y of these 2 can similarly be calculated by subtrating the y-ordinates

change in y (Δy) = y1 - y2

Δy = -5 - 4

Δy = -9

Slope of the line:

Since the slope = Δy / Δx

Replacing the known values:

Slope = -9 / -3

Slope = 3

Therefore, the slope of 'line 1' is 3

Slope of Line 2:

We are given 2 points on the line and we will use them to get its slope

We know that the slope of a line is the change in its y-ordinate divided by its change in x - ordinate

The points given are:      (0 , -6)              and           (4 , 4)

Change in x:

The change in x of these 2 coordinates can be calculated by subtracting their x- ordinates

Change in x (Δx) = x1 - x2

Δx = 0 - (4)

Δx = -4

Change in y:

The change in y of these 2 can similarly be calculated by subtrating the y-ordinates

change in y (Δy) = y1 - y2

Δy =  -6  - 4

Δy = -10

Slope of the line:

Since the slope = Δy / Δx

Replacing the known values:

Slope = -10 / -4

Slope = 5/2

Therefore, the slope of 'line 2' is 5/2

Conclusion:

We have calculated the slope of both the lines.

now, we will compare the slopes to find out if the lines are parallel or not

Slope 1 = 3

Slope 2 = 5/2

Since the slopes are NOT equal, the lines are not parallel

Please help me ASAP
Its not hard im just tired

Answers

Answer:

Step-by-step explanation:

= 7.4z + 8z - 12

= (7.4 + 8)z - 12

= 15.4z - 12

Laura is walking quickly and finds that she travels 54 feet in a span of 12 seconds. Which of the following is the speed at which Laura is walking? (1) 4.5 feet per second
(2) 4.75 feet per second
(3) 5.25 feet per second
(4) 5.5 feet per second

Answers

Answer:

(1) 4.5 feet per second

Step-by-step explanation:

Given;

distance traveled by Laura, d = 54 feet

time to taken for Laura  to cover this distance, t = 12 seconds

Laura's speed is given by the following equation;

speed = distance / time

Laura's speed = 54 ft / 12 s

Laura's speed =  4.5 feet per second

Therefore, the speed with which Laura is walking is 4.5 feet per second.

Which equation represents a line with slope
of 2/3 and y-intercept -6?

Answers

Answer:

[tex]y=\frac{2}{3} x-6[/tex]

Step-by-step explanation:

A bag contains 15 marbles. Six are red, three are blue, and the rest are green or yellow. If the ratio of green marbles to blue marbles is 2 to 3, what is the ratio of yellow marbles to red marbles?

Question 2 options:

3/6


4/6


4/15


6/4
ill give brain for the first one

Answers

Answer:

3/6

Step-by-step explanation:

15 - (6+3) = 6

6 ÷ 2 = 3

number of red is 6

and green is 3

3/6

find the average speed:distance=612 miles time=12 hours​

Answers

Answer:

73 and 44 hours

Step-by-step explanation:

correct if im wrong


Find the sine ratio of angle -. Hint: Use the slash symbol (/ ) to represent the fraction
par, and enter the fraction with no spaces.

Answers

Answer:

4/5

Step-by-step explanation:

The sine ratio is defined as the opposite leg/hypotenuse.  The opposite leg is 4 and the hypotenuse is 5.

In the figure below,
What is the value of x?

Answers

Answer: 16 degrees

Step-by-step explanation:

(3x - 18) = 66

Because vertically opposite angles are equal

66 - 18 = 48

48 divided by 3 = 16

simplify the surd square root 12 x square root 8

Answers

The simplification of square root 12 x is [tex]\mathbf{2 \sqrt{3x}}[/tex] and the square root of 8 is [tex]\mathbf{2 \sqrt{2}}[/tex]

What is Surds?

Surds is a mathematical expression of numbers in square roots that cannot be changed to real numbers but be further simplified into irrational numbers.

From the given information.

The simplification of [tex]\mathbf{\sqrt{12x}}[/tex] is:

[tex]\mathbf{= \sqrt{4 \times 3x }} \\ \\ \mathbf{= 2\sqrt{ 3x }}[/tex]

The simplification of the  [tex]\mathbf{\sqrt{8 }}[/tex] is determined by factoring 8:

i.e.

[tex]\mathbf{= \sqrt{4 \times2 }} \\ \\ \mathbf{= 2\sqrt{ 2}}[/tex]

Learn more about surds here:

https://brainly.com/question/24700530

2(4x - 8y) - 9x + 7 as a simplifying expression.

Answers

Answer:

2(4x - 8y) - 9x + 7

8x - 16y - 9x + 7

-1x - 16y + 7

What is 94.239 rounded to the nearest thousandth?

Answers

it already is at it

94.239 is already rounded to the nearest thousand as the no. of digits after the decimal place is three.

What is rounding off of numbers?

We round off numbers to make them easier to remember and it also keeps their value approximately to the place it has been rounded off.

To round off any number to any place we'll look for the digit next to that place and if it is equal to or greater than 5 we'll add one to the previous digit and make all the digits after it zeroes and if the digit is less than 5 we do not add one to the preceding digit and simply make all the digit after it to zeroes.

Given, 94.239 rounded to the nearest thousandth it is already rounded to the nearest thousand the no. of digits after the decimal place is three.

learn more about rounding off numbers here :

https://brainly.com/question/1285194

#SPJ2

Find the L.C.M of the given pair of numbers using the prime factors method. 70 and 84​

Answers

Answer:

420

Step-by-step explanation:

Prime Number: a whole number greater than 1 that cannot be made by multiplying other whole numbers

First prime numbers: 2, 3, 5, 7, 11, 13, 17, ...

Prime Factorization: prime numbers that multiply together to make the original number.

LCM = least common multiple: smallest positive number that is a multiple of two or more numbers

Start by finding the prime factorization of each number.

Start with the smallest prime number: 2

70 ÷ 2 = 35

35 is not divisible by 2 or 3, but is divisible by 5:

35 ÷ 5 = 7

7 is a prime number, so cannot be divided any further

So  70 = 2 × 5 × 7

Start with the smallest prime number: 2

84 ÷ 2 = 42

Again divide by 2:

42 ÷ 2 = 21

Now divide by 3:

21 ÷ 3 = 7

So  84 = 2 × 2 × 3 × 7

Write each number as a product of primes, matching primes vertically when possible

84 = 2 × 2 × 3       × 7

70 = 2             × 5 × 7

Now bring down the primes in each column. The LCM is the product of these factors.

LCM = 2 × 2 × 3 × 5 × 7 = 420

The mailing tube shown below is 36 inches long, 6 inches wide, and 5.2 inches deep.
The bases are equilateral triangles. How much cardboard is used to make the tube?

Answers

The amount of cardboard = Surface area of a triangular prism = 679.2 in.²

What is the Surface Area of a Triangular Prism?

Surface area of a triangular prism = (perimeter of base × length of the prism) + (2 × Base Area)

= (S1 +S2 + S3)L + bh

The mailing tube is a triangular prism with an equilateral triangular base, and has the following given values:

s1 = 6 in.s2 = 6 in.s3 = 6 in.L = 36 in.b = 6 in.h = 5.2 in.

Plug the values into the surface area formula to find the amount of cardboard that would be used to make the tube:

Amount of cardboard = Surface area of a triangular prism = (6 + 6 + 6)36 + (6)(5.2) = 679.2 in.²

Learn more about surface area of triangular prism on:

https://brainly.com/question/16147227

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