The equation y=x^2-12x+45 models the number of books y sold in a bookstore x days after an award-winning author appeared at an autograph-signing reception.

How many books were sold at the autograph session?

What is the minimum nunber of books sold?

What day did that occur?

How many books were sold on day fifteen?​

Answers

Answer 1

Answer:

3.2

Step-by-step explanation:

Answer 2

Answer:

Answer: The first day the author reaches 100 days is on day 16.

To solve this problem, you could use a graphing calculator to graph the given equation. Then, determine when this line crosses 100. It crosses when x = 15.539. Therefore, we would have to round up to 16 so it is at least 100.

You could use the quadratic equation to solve: 100 = x^2 -12x + 45

Either you will get 16. If you use the quadratic formula, make sure to only use the positive answer.


Related Questions

PLS PLS PLS ANSWER IT QUICKKKK

Answers

Answer:

A

Step-by-step explanation:

State the domain and range
of f(x) = x²

Answers

Answer:

Domain : All real numbers

Range: y >= 0

Step-by-step explanation:

Answer:

range :all real numbers

domain: all real numbers

Hhhhhhhhhhhhheeeeeeellllllllppppppppp

Answers

Answer:

With whattttttttttttttttttttttttttt

Step-by-step explanation:

What is the probability of choosing a 6 of clubs that's also a red card from a deck of cards? Type your answer as a fraction.

Answers

Answer:

4/52

Step-by-step explanation:

Algebra 2 Help, Correct Answers only please!

Answers

Hope this will help.

In the expression 8 × ( 13 − 8 ) ÷ 4 + 5 , what is the first computation that should be completed?

Answers

Answer:

(13-8)

Step-by-step explanation:

It is in parenthesis which is the first thing you complete because PEMDAS ✨

the answer must be (13-8)

find x

help please asap

Answers

Answer:

i think it is 51 degrees

Step-by-step explanation:

___________________________________X = 58 ________________________________

Help..........................

Answers

Answer:

-21 yd

Step-by-step explanation:

[tex]-31-2+12=-21[/tex]

A gym charges $25 per month plus extra four dollars to swim in a pool for an hour if a member only has $45 to spend each month at most how many hours can’t remember swim

Answers

Answer:

5 hours

Step-by-step explanation:

So the set fee is 25. 45-25 = 20. Now, 4 dollars an hour. 20/4 = 5, so 5 hours

What is the surface area of a triangular prism

Answers

Here’s the step of doing it

Mrs. Smith is shopping for a toy chest to go
in her kids' playroom. She looks at the options
shown.


How much floor space will toy chest A take up?

Answers

Answer: 20ft

Step-by-step explanation:

floor space is only worried about the area of the base, so A would be 4*5 or 20

Answer:

20

Step-by-step explanation:

PLEASE HELP!!!!!
The model represents the quotient of two fractions.

Which equation does this model represent?

A. 5/6 ÷ 1/2 = 1 2/3
В. 2 1/2 ÷ 1/2 = 5/6
C. 5/6 ÷ 2 1/2 = 1/3
D. 2 1/2 ÷ 1/2 = 5

Answers

9514 1404 393

Answer:

  D.

Step-by-step explanation:

The shaded portion of the three large rectangles is 2 1/2 of them. The divisions indicated by the fractions at the bottom are 1/2. The figure shows that 2 1/2 can be divided by 1/2 with the result that 1/2 goes into 2 1/2 five times.

This description seems to match the equation of choice D.

ANSWER THE QUESTION FOR BRAINLIEST

Answers

Answer:

the third one

Step-by-step explanation:

it is a line that keeps continuing that way

Brainliest for correct answer, asap please.

Answers

Answer:

Not a function

Not a function

Function

Step-by-step explanation:

The 1st one isn't as clear in the picture, but it looks like the ends of each line overlap the each other.

the length of a rectangle is five inches less than three times its width . if the perimeter of the rectangle is 150 inches , find the dimensions.

Answers

Step-by-step explanation:

let x be the width of the rectangle.

given

length =

[tex]3x - 5[/tex]

inches.

also given Length + Width = 150 inches,

[tex]3x - 5 + x = 150 \\ 4x - 5 = 150 \\ 4x = 150 + 5 \\ 4x = 155 \\ x = 155 \div 4 \\ = 38.75in[/tex]

Since

Length = 3x-5 in

Width = x in,

Length = 3(38.75) - 5 = 111.25 in

Width = 38.75 in

Each student in her 8th grade math class presented her with a cookie. One-third of the students each gave her an oatmeal cookie, one-sixth of the students each gave her a cinnamon cookie, one-fourth of the students each gave her a chocolate chip cookie, and the remaining 9 students each gave her a peanut butter cookie. How many students are in Mrs Vo's 8th grade math class?​

Answers

Answer:

36. There are 36 students in the class.

Step-by-step explanation:

4/12 oatmeal

2/12 cinnamon

3/12 chocolate

9 peanut

The fractions added together = 9/12

This means the 9 students = 3/12 of the class

3 x 4 = 12

9 x 4 = 36

Liam has a bag containing 5 red, 2 blue, 5 green, 6 yellow and 2 white marbles that
are all the same size and shape. What is the probability of randomly choosing 2 green
marbles without replacing?

Answers

Answer:

5 green

20 total

first green = 5/20 = 1/4

second green = 4/19

(1/4)(4/19) = 1/19

Step-by-step explanation:

triangle PQR is similar to triangle XYZ if PQ = n + 2, QR = n - 2 and XY=n^2 - 4, what is the value of YZ, in terms of n?

Answers

Answer:

(n-2)²

Step-by-step explanation:

If triangle PQR is similar to triangle XYZ, then;

PQ/QR =XY/YZ

Given

PQ = n + 2,

QR = n - 2 and

XY=n^2 - 4,

Substitute

n+2/n-2 = n²-4/YZ

n+2/n-2 = (n+2)(n-2)/YZ

1/n-2 = n-2/YZ

Cross multiply

YZ = (n-2)(n-2)

YZ = (n-2)²

Hence the value of YZ in terms of n is (n-2)²

Help with math. Please

Answers

Answer:

I DONT KNOW  THE ANSWER

Step-by-step explanation:

Help due tonight!!

2. What is m < 2?
3. What is m <4?
Plz show work for both

Answers

Answer:

I think that you need a better teacher because this on, gives, extremely... hard questions

(Btw like the profile name)

A plane descends 1000 ft while flying
2.7 mi. What is the angle of descent?

Answers

Answer:

4.02°

Step-by-step explanation:

The angle of descent can be obtained using trigonometry ;

Since we have a right angled triangle ;

Let's use the relation:

Sin θ = opposite / hypotenus

Hypotenus = 2.7 miles

1 mile = 5280 feets

2.7 miles = (2.7 * 5280) = 14256 feets

Sin θ = 1000 / 14256

Sin θ = 0.0701459

θ = sin^-1(0.0701459)

θ = 4.0223674

find the length of x

help please i need it ssap

Answers

Answer:

x = 5.5

Step-by-step explanation:

5+6 = 11

[tex]\frac{2.5}{x}[/tex]=[tex]\frac{5}{11}[/tex]

cross multiply

5x = 27.5

x = 5.5

When y=x^2 is transformed to y=(x+1)^2-3 , the corresponding graph is shifted a) 1unit left and 3 units down. c) 1 unit left and 3 units up. b) 1 unit right and 3 units down. d) 1 unit right and 3 units up.

Answers

UMm can I get the equation.

Find the RANGE
135 120 125 133 66 78 81 91 145 135 68

Answers

The answer is 79

145-66=79

I need help asap please! 20 points!

Graph the parabola.

y=x²–2x-4

Plot five points on the parabola: the vertex, two points to the left of the vertex, and two points to the right of the vertex. Then click on the graph-a-function
button

Answers

This is the graph I hope this helps

What is the area of rectangle PQRS?



A.
20.25 square inches
B.
21.375 square inches
C.
27.00 square inches
D.
42.75 square inches

Answers

Answer:

D

Step-by-step explanation:

(4.5+3+2) x4.5 = 42.75

hope this helps

Answer:

D. 42.75 square inches

Step-by-step explanation:

Area = height x width

Height = 4.5 inches

Width = 3 + 4.5 + 2 = 9.5 inches

4.5 x 9.5 = 42.75 square inches

12
B
4
E
D
3
A

Link= REPORT

(A) 4
(B) 5
(C) 3
(D) 6

Someone pls help!!

Answers

Answer:

i would say B

Step-by-step explanation:

1. Name the side lengths of a 30 degree triangle. Hint adjacent, opposite, and hypotenuse.

Answers

Pointing ok ok yeah yeah

96 = 12d

A. 108 B. 84 C. 8 D. −1 8

Answers

Answer:

Step-by-step explanation:

Answer:

I dont know

Step-by-step explanation:

I dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KIDI dont know That KID

PLEASE hURRY The population, P, of six towns with time t in years are given by the following exponential equations: (i) P = 1000 (1.08) Superscript t (ii) P = 600 (1.12) Superscript t (iii) P = 2500 (0.9) Superscript t (iv) P = 1200 (1.185) Superscript t (v) P = 800 (0.78) Superscript t (vi) 2000 (0.99) Superscript t Which towns are growing in size? a. i, ii, and iv c. i, ii, and iii b. iii, v, and vi d. vi, i, and ii

Answers

Answer:

Its A

Step-by-step explanation:

I got it right on Edge Test

The function that depicts town that is growing in size are  P = 1000 (1.08)^t and 1200 (1.185)^t

Expoenential functions

The standard exponential function is expressed as:

y = ab^x

The value of b will determine whether the towns are growing in size or not, For instance;

If b > 1 then the town is growing, else it is declining

From the given exponential functions, the function that depicts town that are growing in size are  P = 1000 (1.08)^t and 1200 (1.185)^t

Learn more on exponential function here; https://brainly.com/question/12940982

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