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
The table is an illustration of a quadratic regression model
The function that best models the data is y = -60.4x^2 +348.1x -334.2
How to determine the function that models the data?To determine the function that models the data, we make use of a graphing calculator.
Using the graphing calculator, we have the following calculation summary
a = -60.4
b = 348.1
c = -334.2
A quadratic regression model is represented as:
y = ax^2 + bx + c
So, we have:
y = -60.4x^2 +348.1x -334.2
Hence, the function that best models the data is y = -60.4x^2 +348.1x -334.2
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Will give thanks, five stars, and brainliest. I already answered it but wanted to check my answer to see if I got it right. Help is appreciated. Please and thanks.
Answer:
Step-by-step explanation:
The best way to check a question like this one is to graph it. I've done that for you. The red line is the parent function; the blue line is parent shifted 4 units left.
Yes, you are right.
Kira received a $45.75 gift card for a photo center. She used it to buy prints that cost 20 cents each. The remaining balance, B (in dollars), on the card after buying x prints is given by the following function.
B(x) =45.75-0.20x
What is the remaining balance on the card if Kira bought 30 prints?
Answer:
$39.75
Step-by-step explanation:
0.2 X 30 = 6
45.75 - 6 = 39.75
What is 8s-3x+4k I’m confused
write and solve an equation.
The current temp is 54•F. It's expected
to rise 2.5•F each hour. In how many
hours will the temp be 84•F
Answer:
12
Step-by-step explanation:
84-54=30
30/2.5=12
Find the difference 9/x+1 - 2x/x+1
Answer:
I think the answer is 9-2x/x+1
In which choice is y a function of x?
Answer:
First choice
Step-by-step explanation:
Check if a relation is a function by looking at the x's.
No repeated x's? Then it's a function.
Repeated x's but the y is the same y both times? It's a function.
Repeated x's and different y's? NOT A FUNCTION.
see image
Which numbers are factors of 15? help me out here!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
hello
they are
1 - 3 - 5 and 15
Step-by-step explanation:
These figures are similar. The area of one is given. Find the area of the other.
Answer:
100 in^2
Step-by-step explanation:
(15/21)^2 x 196 = 100
10 friends decided to buy a joint gift for their best friend. But as it happens, the two gave up and decided to buy her a present themselves. Thus, the remaining 8 friends had to add 50 dollars each to buy the gift.
How much did the gift cost?
Answer:
The answer is $2000
Step-by-step explanation:
8 had to give an extra $50 each.
8 x 50 = 400
400 ÷ 2 ( the two that changed their mind) = 200
Each person was to give $200
10 × 200 = 2000
Solve system of equations
3x+6y=18
X+3y=15
Answer:
x = - 12, y = 9
Step-by-step explanation:
Given the 2 equations
3x + 6y = 18 → (1)
x + 3y = 15 → (2)
Multiplying (2) by - 3 and adding to (1) eliminates the term in x
- 3x - 9y = - 45 → (3)
Add (1) and (3) term by term to eliminate x
- 3y = - 27 ( divide both sides by - 3 )
y = 9
Substitute y = 9 into either of the 2 equations and evaluate for x
Substituting into (2)
x + 3(9) = 15
x + 27 = 15 ( subtract 27 from both sides )
x = - 12
Solution is (- 12, 9 )
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Answer:
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I'm From Philippines
I hope we can be friends.
3(x - 1) = 2x + 9
Do this equation have one solution, many solution, or no solution?
9514 1404 393
Answer:
1 solution
Step-by-step explanation:
The coefficients of x are different on each side of the equal sign, so this equation has one solution.
_____
Additional comment
If the x-coefficients are the same on each side of the equal sign, then you need to look at the constants. If they are the same, there are an infinite number of solutions; if they are different, no solutions.
This equation simplifies to ...
3x -3 = 2x +9
x = 12 . . . . . . . . add 3-2x to both sides
The solution of expression by applying distributive property and combining like terms,
⇒ x = 12
Given that,
The mathematical expression is,
⇒ 3(x - 1) = 2x + 9
Now, simplify the expression by applying distributive property and combining like terms,
⇒ 3(x - 1) = 2x + 9
Apply distributive property,
⇒ 3x - 3 = 2x + 9
Combine like terms,
⇒ 3x - 2x = 9 + 3
Therefore, the solution of expression is,
⇒ x = 12
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Find the median. 12,5,9,18,22,25,5
Answer:
The answer is 12.
Answer:
12
Step-by-step explanation:
To Find Median;
Arrange data values from lowest to highest valueThe median is the data value in the middle of the setIf there are 2 data values in the middle the median is the mean of those 2 values.Solve;
Least to Greatest:
5, 5, 9, 12, 18, 22, 25
5, 5, 9, 12, 18, 22, 25
5, 5, 9, 12, 18, 22, 25
5, 5, 9, 12, 18, 22, 25
Hence Median = 12.
[RevyBreeze]
Place the steps in solving the following equation in the correct order (from top to bottom).
Answer:
Step-by-step explanation:
1- Distribute
2-Combine like terms
3. divide on both sides
4- subtract from both sides
Find the circumference and area of a circle with a radius of 11 inches.
Find the circumference and area of a circle with a radius of 11 inches.
Answer:
69.12
A different camera is selling for $7. 50 off the regular price. It was discounted 15%. What was the original price of the camera? $112. 50 $75. 00 $50. 00 $45. 0.
Answer:
112.50
Step-by-step explanation:
10% added 7.50 is 75
5% added to 7.50 is is 37.50
75+37.50= 112.50
4:find the measure of angle c.
Answer: 98 Degrees
Step-by-step explanation: A straight line is 180 degrees so, Take 180 minus 82 : 180 - 82 = 98 Degrees
PLEASE HELP! I WILL MAKE YOU BRAINLIST!
Answer:
your answer would be B
Step-by-step explanation:
every item is 9 dollars divide the cost by the number of items it is always 9 meaning 9 is the constant. hope this helps.
Answer:
18
To verify the constant you only have to verify every option by adding those options by itself and the one that matches your information is the correct answer
the price of a 70 inch tv was reduced from 800$ to 600$ on black friday by what percentage was the tv reduced
well, from 800 to 600 is 200 bucks.
if we take 800 to be the 100%, what is 200 off of it in percentage?
[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} 800 & 100\\ 200& x \end{array} \implies \cfrac{800}{200}=\cfrac{100}{x}\implies 4=\cfrac{100}{x} \\\\\\ 4x=100\implies x=\cfrac{100}{4}\implies x=25[/tex]
Jack rides A bike 8 miles and 3/4 of an hour . Use Vocabulary for unit rates and fractions to explain how to find jacks speed in miles per hour. Then find jacks speed
25 points please help me with this
Answer:
Step-by-step explanation:
f(-5) = -(-5) + 1
= 5 +1
= 6
Answer:
f(-5) = -(-5) + 1
= 5 +1
= 6
Step-by-step explanation:
can i maybe get branlyest i only have 1 one rn it would help
What are the x-intercepts of y = 2x² + 15x + 7?
(5,7) (7,9) find slope
Answer:
1
Step-by-step explanation
Since you are given two points you can calculate the slope by use the formula Y1-Y2/X1-X2.
In this case:
Y1 = 5
Y2 = 7
X1 = 7
X2 = 9
(5-7)/(7-9) = -2/-2 = 1
Lily uses the function f(x)=23,000(1.021)x to model the future annual population growth of the city where she lives. Which of the following represents Lily's estimate of the population in 8 years?
3,395
23,483
27,160
187,864
Answer:
its not b
Step-by-step explanation:
its c 27160 we went over this with my teacher
3500 ÷ (34 + 8 × 2) - 4
Answer:
3500
34+(8)(2)
−4
=66
A desk is purchased for $277. Calculate its worth after depreciating for 5 years if it’s depreciation rate is 20% per year.
Answer: After 5 years it’ll cost $90.767.
Step-by-step explanation:
In the figure, AngleRQS Is-congruent-to AngleQLK.
3 lines are shown. Lines S P and K N are parallel. Line R M intersects line S P at point Q, and intersects line K N at point L. Angle R Q S is x degrees. Angle K L M is (x minus 36) degrees.
What is the value of x?
36
72
108
144
Answer:
C. 108
Step-by-step explanation: This is the correct answer on Edge 2021, just took the quiz and made a 100%. Hope this helps ^-^.
The value of 'x' is 108° . Option C
How to determine the value of xFrom the illustration,
Angle RQS is at Q = x degrees
Angles KLM is at L = x - 36 degrees
Note that they are corresponding angles
Corresponding angles sum up to 180°
Then equate both angles to 180 degrees
x + x - 36 = 180°
Collect like terms
2x = 180 + 36
2x = 216
Make 'x' subject of formula
x = 216 / 2
x = 108°
Therefore, the value of 'x' is 108° . Option C
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PLS HELP IT'S DUE TODAY
Answer:
i am so srry but i dont know but good luck
Step-by-step explanation:
A parabola has focus (5,7) and directrix y=0(the X-axis). Write an equation that says point (x,y) is on the
parabola.
Answer:
Step-by-step explanation:
focus of the parabola is (2,0) and directrix is x=-2. Here,a=2.So, Equation becomes, y2=4∗2x⇒y2=8x, which is the required equation of parabola.
The equation of a parabola with the given focus and directrix is x²-10x+74=14y.
What is an equation of a parabola?A parabola refers to an equation of a curve, such that a point on the curve is equidistant from a fixed point, and a fixed line
Given that, a parabola has focus (5,7) and directrix y=0.
When the focus (h, k) of a parabola and the equation of the directrix y = c are given, the equation of the parabola is given by (x-h)²+k²-c²=2(k-c)y
Here, y=c=0
Now, (x-5)²+7²-0²=2(7-0)y
x²-10x+25+49=14y
x²-10x+74=14y
Therefore, the equation of a parabola is x²-10x+74=14y.
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