Maria gathered the data in the table. She finds the line of best fit to be y = 2.78x – 4.4. A 2-column table with 5 rows. The first column is labeled x with entries 1, 2, 3, 4, 5. The second column is labeled y with entries negative 2, 1.3, 4.2, 7.3, 8.9. What is the residual value when x = 4?

Answer:

He had 11 five dollar bills.

Step-by-step explanation:

Since Jonah realized that he had twice as many one dollar bills as he has five dollars bills, and 6 less ten dollar bills as he has one dollar bills, if we say that the number of one dollar bills he has is "x", then the number of five dollar bills and ten dollars bills will be:

five dollar bills = [tex]\frac{x}{2}[/tex]

ten dollar bills = [tex]x - 6[/tex]

Since the total money he had was [tex]237[/tex], then the sum of all the bills he had multiplied by it's respective values must be equal to that:

[tex]\text{(one dollar bills)} + 5*\text{(five dollar bills)} + 10*\text{(ten dollar bills)} = 237\\x + 5*\frac{x}{2} + 10*(x - 6) = 237\\x +\frac{5*x}{2} + 10*x - 60 = 237\\11*x + \frac{5*x}{2} = 237 + 60\\\frac{22*x + 5*x}{2} = 297\\27*x = 297*2\\x = \frac{594}{27} = 22[/tex]

Therefore he had 11 five dollar bills.

Answer:

5 days

Step-by-step explanation:

Given: bacteria to increase from 2000 to  50,000

To find: Number of days that a culture of bacteria will take to increase from 2000 to  50,000

Solution:

The growth of bacteria is represented by the equation: [tex]P(t)=P_0e^{kt}[/tex]

Here, t denotes time, k denotes growth rate and [tex]P_0[/tex] denotes initial population of bacteria.

Take [tex]P_0=2000[/tex], [tex]P(t)=50000[/tex] and [tex]k=0.657[/tex]

[tex]50000=2000e^{0.657t}\\\frac{50000}{2000}=e^{0.657t}\\25=e^{0.657t}\\0.657t=\ln 25\\t=\frac{\ln 25}{0.657}=4.9\approx 5\,\,days[/tex]

Answer: His score is 7.  

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given:

Correct answer = +5

Incorrect answer =-2

Unattempted =0

Ram gets 3 correct and 4 incorrect out of 7 questions.

He attempted 7 questions (3 correct +4 incorrect) so, there are not unattempted questions.

Next, we have to multiply the number of correct questions by the marks given for each correct question ( some process for the incorrect questions)

3 correct = 3 (5) = +15

4 incorrect = 4 (-2) = -8

Adding both results:

+15-8= 7

His score is 7.  

Feel free to ask for more if needed or if you did not understand something.

Answer:

40.5

Step-by-step explanation:

3.75 * 2 = 7.50

48 - 7.50 = 40.5

Answer:

D. y/-1 = f(x)

Step-by-step explanation:

because if you were to move the -1 to the other side by multiplying both sides by -1, you would get f(x) times -1 which would give you the negative equivalent of the original equation f(x)

you can try it out in a graphic calculator like Desmos which is an online graphic calculator

Please at least thank if you found helpful

Answer:

The one to the right

Step-by-step explanation:

Answer:

yes3244

Step-by-step explanation:

i will help 5642

Answer:

I believe the answer is D

Step-by-step explanation:

Answer: 2,3

Step-by-step explanation:

Answer:

x = ±4

Step-by-step explanation:

3x^2 =48

Divide by 3

3x^2/3 = 48/3

x^2 = 16

Take the square root of each side

sqrt(x^2) = ±sqrt(16)

x = ±4

Answer:

x = ± 4

Step-by-step explanation:

You need to get [tex]x^2[/tex] by itself, and to do this, you divide both sides by 3, like so:

[tex]3x^2 = 48\\x^2 = 16[/tex]

Now take the square root of both sides:

[tex]\sqrt{x^2} =\sqrt{16} \\[/tex]

x = ± 4

Answer:

The answer is C; y=x+2

Step-by-step explanation:

y=mx+b (3, 5)

5=1(3)+b

5=3+b

subtract 3 from both sides of the equation

2=b

equation; y=mx+b

                y=x+2

Answer:

C. y = x + 2

Step-by-step explanation:

→You can figure this out by using the point-slope form:

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

[tex]y-5=1(x-3)[/tex]

→Distribute the 1 to (x - 3):

y - 5 = x - 3

→Add 5 to both sides:

y = x + 2

Answer:

One real root (multiplicity 2).

Step-by-step explanation:

-3=x^2+4x+1

x^2 + 4x + 4 = 0

Discriminant = 4^2 - 4*1*4 = 0

There is one real root (multiplicity 2).

The equation has 1 real solution.

The quadratic function is given as:

[tex]-3=x^2+4x+1[/tex]

Add 3 to both sides of the equation

[tex]3-3=x^2+4x+1 + 3[/tex]

This gives

[tex]0=x^2+4x+4[/tex]

Rewrite the equation as:

[tex]x^2+4x+4 = 0[/tex]

A quadratic equation is represented as:

[tex]ax^2+bx+c = 0[/tex]

By comparison, we have:

[tex]a =1[/tex]

[tex]b =4[/tex]

[tex]c = 4[/tex]

The discriminant (d) is calculated as:

[tex]d =b^2 - 4ac[/tex]

So, we have:

[tex]d =4^2 - 4 \times 1 \times 4[/tex]

[tex]d =16 - 16[/tex]

Evaluate like terms

[tex]d = 0[/tex]

Given that the discriminant value is 0, it means that the equation has 1 real solution.

Read more about quadratic functions at:

https://brainly.com/question/2507588

Answer:

Step-by-step explanation:

(2, 3) and (5, 6) are the endpoints of a line segment that is not parallel to either axis and does not intersect either axis.

An ordered pair contains the coordinates of one point in the coordinate system. A point is named by its ordered pair of the form of (x, y). The first number corresponds to the x-coordinate and the second to the y coordinate.

A line segment is a piece or a part of line having two end points.

Since, a line segment is parallel to the either one axis if its one coordinate point is zero, whether it's y or x.

So for not parallel to either axis and does not intersect either axis  we will choose those points which are not zero.

Therefore,

The coordinates of the end points of a line segment that is not parallel to either axis and does not intersect either axis will be (2, 3) and (5, 6).

Similarly, you can use any point using this concept like (7,9) ad (2,3) and many.

Learn more about line segment here:

https://brainly.com/question/25727583

#SPJ2

Answer:

1 39/50 hours. This is equivalent to 1.78 hours.

Step-by-step explanation:

The sum of the hours of work and the hours for break gives the work day hour which has been given as 8 hours.

Furthermore, given that the break time is 22 1/4%, the number of hours for break

= 22 1/4% × 8 hours

= 89/400 × 8

= 1 39/50 hours

Answer:

equation for the new circle is;

(x - 8)² + y² = 36

Step-by-step explanation:

There are two types of translations and they are translation horizontally and vertically. Combining both of them in the context of this question, to translate a circle 6 units to the right and 4 units up, we take our equation,

(x - 2)² + (y + 4)² = 36 and subtract 6 from the x - term and 4 from the y - term to get the equation of the new circle.

This gives us;

(x - 2 - 6)² + (y + 4 - 4)² = 36

This gives;

(x - 8)² + y² = 36

Answer:

Tenth: 6.2

Hundredth: 6.16

Thousandth: 6.159

Step-by-step explanation:

***In general, round up when the number is greater or equal to 5. If number is less, round down***

Rounding to the tenths place means that there will be a SINGLE digit following the decimal. Therefore, 6.1592 rounded to the tenths place will be 6.2 because '5' is equal to 5.

Rounding to the hundredths place means that there will be TWO digits following the decimal. Therefore, 6.1592 rounded to the hundredths place becomes 6.16 because '9' is greater than 5.

Rounding to the thousandths place means that there will be THREE digits after the decimal. 6.1592 rounded to the thousandths place becomes 6.159 because the digit to the right of the thousanths place is '2', meaning you round down. The digit in the thousandths place will stay the same.

Answer:

Step-by-step explanation

Here, we want to select what is true of the function.

The correct answer is that the variable x represents the independent variable

It represents the independent variable because the values of x does not depend on the values of g(x). In fact, the value of g(x) are dependent on the values gotten through the substitution of the different values of x into the equation.

Thus, we can confidently say that the function g(x) is the dependent variable as its values depend on the value for that x

Question:

What is true of the function g(x) = –2x2 + 5?

Answer:

C.) The variable x represents the independent variable.

Answer:

Hai

first i wanna find the full area. so ill multiply

14×10 = 140.

now the things i should do is find patch and bed's area and substrack from the all area to find the lawn!

For flower bed:

3×8= 24, 24÷2 = 12.

for vegetable patch:

5+7= 12×10 = 120÷2 = 60.

60+12=72

140-72= 68

good luck (:

Answer:

x and y

Step-by-step explanation:

Answer:

2 variable x and y ( varable are the symbol that can take any balue in a expression)

Answer: D is incorrect

Step-by-step explanation:

Answer:

2*10 ^0 = 2

Step-by-step explanation:

9 * 10^12 ÷ 4.5 × 10^12

Divide the numbers

9/4.5

=2

Divide the exponents by subtracting

10^12 ÷  10^12 = 10 ^(12-12) = 10^0

Put them back together

2 * 10 ^0

2

Answer:

[tex]54.5 \: ft^2 [/tex]

Step-by-step explanation:

Area of the figure = Area of rectangle + Area of both triangles

[tex]= 11\times 4 +\frac{1}{2} \times 3 \times 4 +\frac{1}{2} \times 3 \times 3\\=44 + 3\times 2+ 3\times 1.5\\= 44 + 6 + 4.5\\=54.5 \: ft^2[/tex]

Answer:

[tex]6400{cm}^{3} [/tex]

Step-by-step explanation:

Since this is a rectangular prism, simply multiply all the lengths together:

20×20×16 = 6400

Answer:

Please see attached image for the graph

Step-by-step explanation:

To graph the elevation versus time, we start by plotting the first point at time zero (when the climb begins) when Zane is 20 meters below the edge (-20 meters). This corresponds to the point (0, -20).

One second later (1 in the horizontal axis), Zane has moved up 4 meters, now reaching -16 meters. This is the point (1, -16) on the graph.

One second later at time 2 seconds, he is another 4 meters up which corresponds to the point (2, -12) on the graph.

you can go on like this plotting more points on the graph.

Please see the attached image that illustrates this and shows the appropriate line that represents Zane's position versus time (pictured in red)

Answer:

choice A is better value

Step-by-step explanation:

1/2 Kg = 500 grams

0.7* 5=3.5 dollars for sunflower seeds

prepackaged seeds : 500 mg= 0.5 grams

so 0.5 grams cost 3.95 dollars

Answer:

Since, company A charge of $423.5 is less than company B charge of $450

Hence,

Company A should be hired to get the better deal.

Step-by-step explanation:

Dimension of room: 11 * 14 foot

Area of rectangle is given by length * width

Thus,

area of room using above formula = 11*14 square foot = 154 square foot

For company A

charge  for 1 square foot = $2.75

Charge for room = charge  for 1 square foot * area of room

                           = 2.75 * 154 = 423.5

Thus, Total money charged by company  A as calculated above is $423.5

Given,

company B charges $450 per room

Since, company A charge of $423.5 is less than company B charge of $450

Hence,

Company A should be hired to get the better deal.

Answer:

Company B

Step-by-step explanation:

Answer:

2(x+8)(x-5)

Step-by-step explanation:

2x^2 + 6x − 80

Factor out a 2

2(x^2 + 3x − 40)

What 2 numbers multiply to -40 and add to 3

8*-5 = -40

8+-5 = -3

2(x+8)(x-5)

The right answer is 2(x-5)(X+8)

please see the attached picture for full solution

Hope it helps

Good luck on your assignment...

Answer:

[tex]n^2+5n+2[/tex]

Step-by-step explanation:

Given the sequence

8, 16, 26, 38, 52, 68, 86,...

The nth term of a quadratic sequence will take the form:

[tex]an^2+bn+c[/tex]

Step 1: Find the difference between each term

The differences are: 8,10,12,14,...

Step 2: Find the differences between the differences

We notice an addition of 2, so the second difference is 2.

Step 3:

Take the half of the second difference to obtain a.

2/2=1

Therefore: a=1

The sequence for now is: [tex]n^2+bn+c[/tex]

Step 4: Find [tex]T_n-n^2[/tex]

[tex]T_1=8, T_1-1^2=8-1=7\\T_2=16, T_2-2^2=16-4=12\\T_3=26, T_3-3^2=26-9=17[/tex]

We notice that [tex]T_n-n^2[/tex] forms a linear sequence 7,12,17

We can write this as 2+5n

Therefore, Our nth rule for the quadratic sequence is therefore: [tex]n^2+5n+2[/tex]

Answer:

y=x+1

Step-by-step explanation:

The slope intercept form of a line is y=mx+b, where m is the slope of the line and b is the y intercept. Since the line rises one unit for every one unit it moves to the right, it has a slope of 1. Since it intersects the y axis at the point (0,1), it has a y intercept of 1. Therefore, the equation is y=x+1. Hope this helps!

Answer:

Hey!

Y= x + 1 is your answer!

Step-by-step explanation:

hope this helps!

Answer: Graph A and C

Step-by-step explanation:

Answer: a&c

Step-by-step explanation:

2020edg

Answer: 76 ft2

Step-by-step explanation:

Perimeter = 2 side length +base length

40 = 2s +12

Solving for s:

40-12 =2s

28 =2s

28/2=s

14ft =side

Since the line which bisects and isosceles triangles is at a right angle to the base we can use the Pythagorean Theorem to find the height (see attachment)  

c^2 = a^2 + b^2  

Where c is the hypotenuse of the triangle (in this case 14) and a and b are the other sides. (Base divided by 2 is one side, the other side is the height)

Replacing with the values given:  

14^2= 6^2 + x^2

196 = 36 + x^2

196-36 = x^2

160 = x^2

√160 = x

x = 12.64 (height)

Area of an isosceles triangle = 1/2 x base x height  

A = 1/2 x 12 x 12.64 = 76 ft2