The scatterplot and table show the weekly profit in dollars earned from the sale of pastries at seven different prices. The data can be modeled by a quadratic function.
Which function best models the data?
A)y = 0.001x2 - 0.426x + 35.672
B)y = -60.4x2+ 348.1x - 334.2
C)y = 0.001x2+ 35.672
D)y = -60.4x2 - 334.2

Answer:

A

Step-by-step explanation:

5a+4=9a+3-4a

5a-9a+4a=3-4

a=-1

(2) x (14 2/3) - (10) - (8 1/3) - (12 2/3)  =   -(1 2/3) (D)

The value of the stock change that week is -1 2/3.

The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.

Given:

The value of a stock increases 14 2/3 points twice in one week.

and, The other three days the value decreases by 10 points, 8 1/3 points, and 12 2/3 points.

So, the point in that week

= 2 x 14 2/3 - 10 - 8 1/3 - 12 2/3

= 2 x 44/3 - 10 - 25/3 - 38/3

= 88/3 - 10 - 63/3

= 88/3 - 10 - 21

= 88/3 - 31

= 88- 93/ 3

= - 5/3

= - 1 2/3

Learn more about fraction here:

https://brainly.com/question/10354322

#SPJ2

Answer:

187.5mph

Step-by-step explanation:

If 1 hour= 75mph

what about 2.5 hours

you cross multiply

The slope of this line is 2

Answer:

ूेऐेुेुलौयकौइकौलएेःरःरइौईौकौथटइिौइिौइोौकइेईौकेञौञे

Answer:

when you have longer than 10 minute phone calls

Step-by-step explanation:

after 10 minutes each plan is 650

plan A + 1 more minute = 680

plan B + 1 more minute = 670

so after 10 minutes plan b costs less

Answer:

10 min long is the answer

The Equation of line is y = -x + 3.

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the

change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δx where, m is the slope

Take the points (4, -1) and (0, 3).

so, the slope of line is

m = (3+ 1)/ (0-4)

m = 4/ (-4)

m = -1

So, the equation of line

y= mx+ b

y= -x + b

and, 3 = b

So, the required equation is y = -x + 3.

Learn more about Slope here:

https://brainly.com/question/3605446

#SPJ2

Answer:

x = -30

Step-by-step explanation:

Let x be the number.

2(x + 9) = x - 12

Use distributive property of multiplication

2x + 18 = x - 12

Simplify by combining like terms

2x - x = -12 - 18

x = -30

Answer:i think it 5

Step-by-step explanation:

Answer:

Cube of twice a number? (I’ve never honestly heard that before)

(2x)^2

Step-by-step explanation:

X would equal “number”

Answer:

what expression

Step-by-step explanation:

Answer:

c) [tex]a_{n}[/tex] = 3.5n + 7.5

Step-by-step explanation: =>

Given :-

a = 11

d = 3.5

To Find :

[tex]a_{n}[/tex]

Solving :-

= a + (n - 1)d

= 11 + 3.5n - 3.5

= 3.5n + 7.5

Solution :-

c) [tex]a_{n}[/tex] = 3.5n + 7.5

The mean absolute deviation for the number of hours students practiced the violin is 6.4.

The average absolute deviation of the collected data set is the average of absolute deviations from a center point of the data set.

Given

Students reported practicing violin during the last semester for 45, 38, 52, 58, and 42 hours.

The given data set is;

45, 38, 52, 58, 42

Mean Deviation = Σ|x − μ|/N.

μ = mean, and N = total number of values

|x − μ| = |45 − 47| = 2

|38− 47| = 9

|52− 47| = 5

|58− 47| = 11

|42− 47| = 5

The mean absolute deviation for the number of hours students practiced the violin is;

[tex]\rm Mean =\dfrac{2+9+5+11+5}{5}\\\\Mean=\dfrac{32}{5}\\\\Mean = 6.4[/tex]

Hence, the mean absolute deviation for the number of hours students practiced the violin is 6.4.

To know more about mean value click the link given below.

https://brainly.com/question/5003198

Answer:

13

Step-by-step explanation:

If a = 4 and m = –3, evaluate a – 3m.

= Solution,

= a - 3m

= 4 - 3 ( - 3 )

= 4 + 9

= 13

Answer:

13 is the answer :)

Step-by-step explanation:

If,

a = 4 and m = -3

Then a - 3m ,

4 - 3(-3)

4+9

= 13

Answer:

21

Step-by-step explanation:

12 times 1.75 equals 21

Answer:

1. 11/2

2. -1/2

3. 17/20

Step-by-step explanation:

Answer:

27

Step-by-step explanation:

because 3*9=27 so that it

The inequality equation is 3L ≤ 27 or L ≤ 9 feet , where L is the length

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.

Given data ,

Let the inequality equation be represented as A

Now , the value of A is

Let the length of the equilateral triangle be L

And , each of the lengths of the triangle is at most 9 feet long means that each of the lengths is less than or equal to 9 feet

So , L ≤ 9 feet

And , the perimeter of an equilateral triangle is the addition of the three equal lengths

So , 3L ≤ 27 feet

Therefore , the value of A is 3L ≤ 27 feet

Hence , the inequality equation is 3L ≤ 27 feet

To learn more about inequality equations click :

https://brainly.com/question/11897796

#SPJ2

Answer:

x>2

Step-by-step explanation:

Answer:

The answer is

[tex] \huge y = - \frac{5}{4} x - 3[/tex]

Step-by-step explanation:

To find an equation of a line given the slope and a point we use the formula

[tex]y - y_1 = m(x - x_1)[/tex]

where

m is the slope

( x1 , y1) is the point

From the question the point is (-4,2) and slope of -5/4

We have

[tex]y - 2 = - \frac{5}{4} (x + 4) \\ y - 2 = - \frac{5}{4} x - 5 \\ y = - \frac{5}{4} x - 5 + 2[/tex]

We have the final answer as

[tex]y = - \frac{5}{4} x - 3 \\ [/tex]

Hope this helps you

Answer: 57

Step-by-step explanation:

Answer:

It should be something like that :

I CANT HELP :(

Step-by-step explanation:

:(

Answer:I’m pretty sure the answer is 10x-3

Step-by-step explanation:

Water cycle involves all processes in which water circulates

The water cycle labeled C is precipitation

From the figure, we can see that the step C represents water falling down from the sky to the earth surface.

This can represent rain, sleet, or snow.

Any of the above forms represent precipitation

Hence, the water cycle labeled C is precipitation

Read more about water cycle at:

https://brainly.com/question/8305337

Answer:

35

Step-by-step explanation:

By the triangle midsegment theorem, 2(WY)=VZ.

So, 2(p-21)=p-7, meaning p=35.

Answer:

7238.23

Step-by-step explanation:

Answer:

45 mph

Step-by-step explanation:

180 / 4= 45

Answer: 3x^2-28x-36

hope it helps :)

Answer:

  (b)  y = 3x; check using dimensions from the figure

Step-by-step explanation:

The dimensions in the larger triangle are more than the dimensions in the smaller triangle. That means the smaller dimensions need to be multiplied by a value greater than 1 to get the larger dimension. (This eliminates the 1st and 3rd choices.)

__

The figures are drawn approximately to scale, so it is easy to see that the larger triangle's dimensions are more than double (2 times) those of the smaller triangle. (This eliminates the 4th choice. 3/2 < 2)

The equation that represents the larger dimensions in terms of the smaller ones is ...

  y = 3x

__

You can check this by choosing a smaller dimension and using that in the equation:

  bottom leg = 3 in

  larger bottom leg = y = 3(3 in) = 9 in . . . . matches the diagram