the following data shows the number of days prom tickets have been on sale and the total number of tickets sold. what is the linear regression equation to match the data?

Day (x) 1 2 5 7 10
Number of prom tickets sold (y) 30 35 55 60 70

Answer:

B

Step-by-step explanation:

f(x) = [tex]x^{2} -8x+3[/tex]

=> f(x)= [tex]x^{2} -2(x)(4)+4^{2}-4^{2}+3[/tex]

=> f(x) = [tex](x-4)^{2}-4^{2}+3[/tex]

=> f(x) = [tex](x-4)^{2}-16+3[/tex]

=> f(x) = [tex](x-4)^{2}-13[/tex]

Answer:

f(x) = (x - 4)² - 13

Step-by-step explanation:

f(x) = x² − 8x + 3

x² − 8x + 3 = 0

x² - 8x = -3

x² - 8x + 4² = -3 + 4²

x² - 8x + 4² = -3 + 16

x² - 8x + 4² = 13

(x - 4)² = 13

(x - 4)² - 13 = 0

The vertex form of a quadriatic function  f(x) = x2 − 8x + 3 is;

f(x) = (x - 4)² - 13

Answer:

Step-by-step explanation:$18,500 × .04=

$740×5= $3,700 + $18,500=

$22,200 for total loan

Answer:

df/dx = e^x(1/x+ ln(x))

Step-by-step explanation:

f(x) = e^x * ln(x)

We can solve this by partial derivatives

df/dx = u dv + v du

let u = e^x and v = ln(x)

df/dx = e^x * 1/x + ln(x) * e^x

Factor out the e^x

df/dx = e^x(1/x+ ln(x))

Answer:

0.8

Step-by-step explanation:

We can solve P(A or B) by using the following:

[tex]P(AorB)=P(A)+P(B)-P(AandB)[/tex]

Since we know P(A) = 0.6, P(B) = 0.3 and P(A and B) = 0.1 we obtain:

[tex]P(AorB)=0.6+0.3-0.1=0.8[/tex]

Answer: 0.8

Step-by-step explanation:

Answer:

$29.02    

Step-by-step explanation:  

We will use compound interest formula to find the amount of interest after 3 months.

[tex]A=P(1+\frac{r}{n})^{nT}[/tex], where,

A= Amount after T years.

P= Principal amount.

r= Annual interest rate in decimal form.

n=  Number of times interest is compounded per year.

T= Time in years.

Let us convert our given interest rate in decimal form.

[tex]3.55\%=\frac{3.55}{100}=0.0355[/tex]

Let us convert our given time in years.

[tex]3\text{ months}=\frac{3}{12}\text{ years}=0.25\text{ years}[/tex]

Let us substitute our given values in above formula.

[tex]A=3260(1+\frac{0.0355}{12})^{12\times 0.25}[/tex]

[tex]A=3260(1+0.0029583333333333)^{3}[/tex]

[tex]A=3260(1.0029583333333333)^{3}[/tex]

[tex]A=3260\times 1.0089012810988858948[/tex]

[tex]A=3289.018176382368017048[/tex]  

We will use formula [tex]A=P+I[/tex] to find the amount of interest.

[tex]3289.018176382368017=3260+I[/tex]

[tex]3289.018176382368017-3260=I[/tex]

[tex]29.018176382368017=I[/tex]

[tex]I\approx 29.02[/tex]

Therefore, the total interest earned by the end of the third month will be $29.02.

Answer:

$28.59

Step-by-step explanation:

GradPoint doesn't seem to have the correct answer. THe closest I could get was to take 3,260 x .0355 x 90/365 = 28.54

Answer:

Linear  

Step-by-step explanation:

Each time x increases by one unit, y increases by three units.

The table represents a linear function of x.

Answer: $9.75

Step-by-step explanation: I think this is how you do it. 20h=195 so you divide 195 by 20 to find our how much he gets an hour.

Answer:

9.75

Step-by-step explanation:

You have to divide the both by 20 since there is any like terms or anything to use, but you can use division on both sides since its 20h = 195.

20h   =    195

20            20

h       =     9.75

Final answer:

To find the equation of the circle, we need the center coordinates and the radius. In this case, the center is (3, -2) and the circle passes through the point (0, 2). Using the distance formula, the radius is found to be 5. Therefore, the equation of the circle is [tex](x - 3)^2 + (y + 2)^2 = 5^2[/tex].

Explanation:

To find the equation of a circle, we need the center coordinates and the radius. In this case, the center is (3, -2) and the circle passes through the point (0, 2). We can use the distance formula to find the radius, which is the distance between the center and the point on the circle.

Using the distance formula, [tex]d = \sqrt{((x2 - x1)^2 + (y2 - y1)^2)[/tex], we have:

[tex]d = \sqrt{((0 - 3)^2 + (2 - (-2))^2)} = \sqrt{((-3)^2 + (4)^2)} = \sqrt{(9 + 16)} = \sqrt{(25)} = 5[/tex]

So, the radius is 5. Therefore, the equation of the circle is

[tex](x - 3)^2 + (y + 2)^2 = 5^2[/tex]

To find the equation of the circle with center at (3, -2) and passing through the point (0, 2), use the standard form and calculate the radius. Then, the equation is (x - 3)² + (y + 2)² = 25.

To find the equation of a circle with center at (3, -2) and passing through the point (0, 2), we can use the standard form of the equation of a circle, which is:

(x - h)² + (y - k)² = r²

Here, (h, k) is the center of the circle, and r is the radius. Given the center (3, -2), we substitute h = 3 and k = -2:

(x - 3)² + (y + 2)² = r².

Next, we find the radius by calculating the distance between the center (3, -2) and the point (0, 2) using the distance formula:

r = [tex]\sqrt{(0 - 3)^2 + (2 + 2)^2}[/tex]

= √(9 + 16)
= √(25)
= 5.

With r = 5, we can now write the full equation of the circle:

(x - 3)² + (y + 2)² = 25

To summarize, the equation of the circle with center at (3, -2) and passing through the point (0, 2) is (x - 3)² + (y + 2)² = 25.

Answer:

The rangers

Step-by-step explanation:

Their number of wins didn't go up. In fact their wins decreased the most.

Answer:

D

Step-by-step explanation:

Improvement means positive change. The one with the least positive difference is the Rangers because they became WORSE by more than 10, which is bigger than even the Jets' negative amount.

Answer:

see below  PLEASE GIVE BRAINLIEST

Step-by-step explanation:

14% ÷ 12 (MONTHS IN THE YEAR) = 1.16666667

If rounding to the nearest 10th of a percent the answer is 1.2% increase per month.

Answer:

1.1%

Step-by-step explanation:

Annual rate: 14 % = [tex]\frac{14}{100}  = 0.14[/tex]

Monthly rate  = [tex](1 + r )^{\frac{1}{12} } - 1[/tex]

=   [tex](1 + 0.14 )^{\frac{1}{12} } - 1[/tex]

=   [tex](1.14 )^{\frac{1}{12} } - 1[/tex]

= 1.01097 - 1

= 0.01097

In percent it becomes: 0.01097 * 100 = 1.097%

Rounded to the nearest tenth: 1.1%

Answer:

[tex]a= \frac{-52-b}{4}[/tex]

Step-by-step explanation:

Rearrange the equation so b is the independent variable.

To get 'b' as a independent variable , we need to get 'a' alone

WE need to solve for 'a' so that 'a' depends on variable b and 'b' becomes independent variable

4a+b=−52

To get 'a' alone , subtract 'b' from both sides

4a = -52-b

Divide by 4 on both sides

[tex]a= \frac{-52-b}{4}[/tex]

Answer:

a=-13-1/4b

Step-by-step explanation:

I got it on khan academy I didn’t get what the guy before got but sorry if it’s wrong

Answer:

[tex]3\frac{1}{4}[/tex] divide by [tex]\frac{3}{4}[/tex]

Step-by-step explanation:

[tex]3\frac{1}{4}[/tex] is a mixed fraction and it can be written as

[tex]\frac{3*4+1}{4}=\frac{13}{4}[/tex]

13/4 can be break into

[tex]\frac{3}{4}+\frac{3}{4}+\frac{3}{4}+\frac{3}{4}+\frac{1}{4}[/tex]

[tex]\frac{13}{4}[/tex] can be divided into [tex]\frac{3}{4}[/tex] and it is left with

[tex]\frac{1}{4}[/tex]

[tex]3\frac{1}{4}[/tex] divide by [tex]\frac{3}{4}[/tex]

Answer:

∠CAT = 140°

Step-by-step explanation:

Since AB bisects ∠CAT then ∠BAT = ∠CAB, hence

5x + 20 = 2x + 50 ( subtract 2x from both sides )

3x + 20 = 50 ( subtract 20 from both sides )

3x = 30 ( divide both sides by 3 )

x = 10

∠CAT = ∠BAT + ∠CAB = 5x + 20 + 2x + 50 = 7x + 70

substitute x = 10 into the expression

∠CAT = (7 × 10) + 70 = 70 + 70 = 140°

Answer:

4 > −3

Step-by-step explanation:

To find a number to the right of -3, it must be bigger than -3

The open part of the inequality faces the bigger number.

4 is bigger than -3

4>-3

Answer:

see explanation

Step-by-step explanation:

given x² - 6x - 21 = 0 ( add 21 to both sides )

x² - 6x = 21

to complete the square

• add ( half the coefficient of the x-term)² to both sides

x² + 2 (- 3)x +9 = 21 + 9

(x - 3)² = 30 ( take the square root of both sides )

x - 3 = ± [tex]\sqrt{30}[/tex] ( add 3 to both sides )

x = 3 ± [tex]\sqrt{30}[/tex]

x = 3 - [tex]\sqrt{30}[/tex] = - 2.48 ( to 2 dec. places ) or

x = 3 + [tex]\sqrt{30}[/tex] = 8.48 ( to 2 dec. places )

Answer:

Running rate of Destiny is 15 kmph

Step-by-step explanation:

Running rate of Destiny is the speed at which Destiny is running.

It can be calculated by finding the difference in the distance covered to the difference in the time taken.

So,

Running rate = Difference in distance covered / Difference in time taken

Difference in distance covered = 5-3 = 2 km

Difference in time taken = 10:44 am - 10:36 am = 44 -36 minutes = 8 mins =8/60 hour = 2/15 hour

Running rate = 2/(2/15) kmph =(2*15)/2 = 15 kmph

∴Running rate of Destiny is 15 kmph

Answer:

D

Step-by-step explanation:

The quadratic formula is

[tex]x=\frac{-b+\sqrt{b^2-4ac} }{2a}[/tex].

It is important because while some quadratics are factorable and can be solved not all are. The formula will solve all quadratic equations and can also give both real and imaginary solutions.  Using the formula will require less work than finding the factors if factorable. We will substitute a=2, b=16 and c=-9.

[tex]x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}\\x=\frac{-(16)+/-\sqrt{(16)^2-4(2)(-9)} }{2(2)}\\x=\frac{-16+/-\sqrt{256+72} }{4}[/tex]

We will now simplify and solve.

[tex]x=\frac{-16+/-\sqrt{328}}{4}\\x=-4+/-\sqrt{\frac{328}{16}}\\x=-4+/-\sqrt{\frac{41*8}{2*8}}\\x=-4+/-\sqrt{\frac{41}{2}}[/tex]

Answer:

The correct answer option is A. x2 – 3x + 15.

Step-by-step explanation:

We are given the following expression and we are supposed to simplify it:

[tex]7x^2+6x-9x-6x^2+15[/tex]

Before solving it, a good idea will be to arrange all the like terms together in their decreasing power and write the expression as:

[tex]7x^2-6x^2+6x-9x+15[/tex]

Simplifying it to get:

[tex]x^2-3x+15[/tex]

Therefore, the first option A is the correct answer x2 – 3x + 15.

Answer:

A. [tex]x^{2} - 3x +15[/tex]

Step-by-step explanation:

Given:

7x^2 + 6x – 9x – 6x^2 + 15.

On combining the x^2, and "x" terms we get,

= (7x^2 – 6x^2) + (6x – 9x)  + 15

Now, here simple addition of integers takes places

=  x^ - 3x + 15

Im not too sure, but C might work as an answer...

Sorry if it's wrong :(

Answer:

C. 81[-4/3]^n-1

Step-by-step explanation:

The explicit formula for a geometric sequence is given by a_n = a * r^(n-1). Using the provided values of a2 = 108 and a5 = 256, we can establish two equations to solve for 'a' and 'r'. This results in two possible explicit formulas for the sequence.

In a geometric sequence, each term after the first is obtained by multiplying the previous term by a fixed, non-zero number called the common ratio. If we denote the first term of the sequence by 'a' and the common ratio by 'r', then the explicit formula of the sequence is: a_n = a * r^(n-1). Given that a2 = 108 (the second term is 108) and a5 = 256 (the fifth term is 256), we have two equations: a*r = 108 and a*r^4 = 256. Dividing the second equation by the square of the first equation, we get r^2 = 256/108^2 = 0.022. So, r is about +- 0.148. Substituting r into the first equation, we can solve for a. This gives us two possible explicit formulas for the sequence depending on whether we take the positive or negative value of r.

https://brainly.com/question/33243139

#SPJ3

Answer:

Since you want me to answer 3 lb 1 oz - 1 lb 15 oz instead, the answer is 18 oz

Step-by-step explanation:

First, convert pounds and ounces to just ounces, then subtract the total ounces. Finally, convert back to pounds and ounces to get the result of 8 lb 1 oz minus 3 lb 6 oz, which is 4 lb 11 oz.

Subtracting Mixed Measurements

To find the result of 8 lb 1 oz − 3 lb 6 oz, follow these steps:

Convert everything to ounces for easier subtraction (since there are 16 ounces in a pound).

Subtract the ounces first, then subtract the pounds.

Step-by-Step Solution

Step 1: Convert to ounces
8 lb 1 oz = (8 × 16) + 1 = 128 + 1 = 129 ounces
3 lb 6 oz = (3 × 16) + 6 = 48 + 6 = 54 ounces

Step 2: Subtract the ounces
129 ounces - 54 ounces = 75 ounces

Step 3: Convert back to pounds and ounces
75 ounces = 4 lb 11 oz (since 75 ÷ 16 = 4 remainder 11)

Therefore, 8 lb 1 oz − 3 lb 6 oz = 4 lb 11 oz.

Answer:

30% of the meat on the platter is ham.

Step-by-step explanation:

90 slices = 100%

10% = 9 slices

90 - 63 = 27 slices (this is the amount of ham)

10% x 3 = 30% = 27 slices of ham

Answer:

27 slices of ham which is about 30% of the meat.

Step-by-step explanation:

In this problem we have given

no. of slices of meat=90

no of slices of turkey's meat=63

Percent of ham in platter=?

No of ham slices= Total slices -turkey slices

=90 - 63

= 27 slices

therefore no of ham slices=27

percent of ham slices=Ham slicesx100/total slices

=27x100/90%

=30%

Therefore  percent of ham's in patter=30%

Answer:

they are different numbers

Step-by-step explanation:

when you subtract 35-15 it comes out to 20 and the other one comes out to 17

[tex]\bf 3(x-1)^2+2x-7\implies \stackrel{\stackrel{x=3}{\cfrac{}{}}}{3[(3)-1]^2+2(3)-7}\implies 3[2]^2+6-7 \\\\\\ 3[4]+(-1)\implies 12-1\implies 11[/tex]

Answer:

As you did not provide any "next steps", I would do it this way:

2q - 4 = 20 // add 4 to both sides

2q = 24 // divide both sides by 2

q = 12

Answer:

2q-4=20

Step-by-step explanation:

The point-slope form:

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

We have the slope m = -2/3 and the point (-9, 3). Substitute:

[tex]y-3=-\dfrac{2}{3}(x-(-9))[/tex]

[tex]y-3=-\dfrac{2}{3}(x+9)[/tex]      use distributive property

[tex]y-3=-\dfrac{2}{3}x-\dfrac{2}{3}\cdot9[/tex]

[tex]y-3=-\dfrac{2}{3}x-(2)(3)[/tex]

[tex]y-3=-\dfrac{2}{3}x-6[/tex]     add 3 to both sides

[tex]\boxed{y=-\dfrac{2}{3}x-3}[/tex]

[tex]\bf \begin{array}{ccll} cans&\$\\ \cline{1-2} 12&33\\ 5&x \end{array}\implies \cfrac{12}{5}=\cfrac{33}{x}\implies 12x=165 \\\\\\ x=\cfrac{165}{12}\implies x=13.75[/tex]

Answer:

$13.75

Step-by-step explanation:

Divide $33 by 12 to find out how much each can of nuts costs, which is $2.75. Now multiply that by 5 to get the cost of 5 cans of nuts. $13.75.