Answer:
B
Step-by-step explanation:
The quadratic regression function for the given data function can be written as f(x) = 2.55357143 + 52.8875x - 15.97519841x².
What is function?A function is a relation between a dependent and independent variable. We can write the examples of functions as -
y = f(x) = ax + b
y = f(x, y, z) = ax + by + cz
Given is that during one game, the Dallas Cowboys punter was called upon to punt the ball eight times. On one of these punts, the punter struck the ball at his own 30-yard line. The height {h} of the ball above the field as a function of time {t} in seconds can be partially modeled by the following table -
{t} 0 0.6 1.2 1.8 2.4 3.0
h{t} 2.50 28.56 43.10 46.12 37.12 17.60
Using the graphing calculator, we can calculate the values as -
Mean of {x} : 1.5
Mean of {y} : 29.16666667
Correlation coefficient {r} : 0.9999376942
A : 2.55357143
B : 52.8875
C : -15.97519841
We can write the quadratic regression function as -
f(x) = A + Bx + Cx²
f(x) = 2.55357143 + 52.8875x - 15.97519841x²
Therefore, the quadratic regression function for the given data function can be written as f(x) = 2.55357143 + 52.8875x - 15.97519841x².
To solve more questions on functions, visit the link below-
https://brainly.com/question/30194223
#SPJ3
Choose the algebraic description that maps AABC onto AA'B'C'in the given figure.
A) (x, y) - (x + 6, Y)
B) (x, y) - (x, y - 6)
OC) (x, y) - (x-6, y).
D) (x, y) - (x, y + 6)
9514 1404 393
Answer:
C) (x, y) ⇒ (x -6, y)
Step-by-step explanation:
Each image point is 6 units left of the corresponding pre-image point. That is, its x-coordinate is reduced by 6. The appropriate choice is shown below.
AE = 3x - 2 and EC = 2x + 3 then DB =
#5
Answer:
DB = 26
Step-by-step explanation:
Remember:
AE ≅ ECAC ≅ DB☆The equation in finding the value of x would be 3x - 2 = 2x + 3.
☆Let's solve the equation.
[tex] \: \: \: \: \: \: \: \: \: 3x - 2 = 2x + 3 \\ \frac{ - 2x \: \: \: \ = - 2x}{x - 2 = 3} \\ \frac{ \: \: \: \: \: + 2 = + 2}{x = 5} [/tex]
☆Now that we found the value of x, we are going to plug in for AE and EC.
[tex]AE ; \\ 3x - 2 \\ 3(5) - 2 \\ 15 - 2 \\ 13 \\ \\ \\ \\ and \\ \\ \\ \\ \\ EC; \\ 2x + 3 \\ 2(5) + 3 \\ 10 + 3 \\ 13[/tex]
☆AE and EC each measure 13. To find the length of AC, you will have to add AE and EC. [tex]13 + 13 = 26[/tex]
The length of AC is 26. And since we know that AC is congruent (equal) to DB, meaning they measure the same. DB length is also 26.
Quadrilateral ABCD is graphed on the coordinate plane below. Reflect quadrilateral ABCD across the x-axis.
Answer:
b
Step-by-step explanation:
h4byvtvt3v3tv3yv3v3tg3tv3tv
How much do 15 DVDs cost at the store with the lowest unit price?
Bernie's Bargains 6 DVDs for $56.70
Greg's Giveaways 10 DVDs for $99.70
Stan's Steals 8 DVDs for $79.68
Answer:
Total cost= $141.75
Step-by-step explanation:
Giving the following information:
Bernie's Bargains 6 DVDs for $56.70
Greg's Giveaways 10 DVDs for $99.70
Stan's Steals 8 DVDs for $79.68
First, we need to determine the unitary price of each and choose the lowest one:
Bernie= 56.7/6= $9.45
Greg= 99.7/10= $9.7
Stan= 79.68/8= $9.96
The lowest price is $9.45.
Now, the total cost of 15 DVDs:
Total cost= 9.45*15
Total cost= $141.75
Answer:
149.25
Step-by-step explanation:
the equation y = 73x + 146.53, where x represents the number of traffic tickets and y represents the cost of car insurance, determine the cost of car insurance if you had 9 tickets.
Answer:
803.53
Step-by-step explanation:
Cost of car insurance = 73 traffic tickets + 146.53
y = (73 × 9) + 146.53
y = 657 + 146.53
y = 803.53
Car insurance costs 803.53
What is the exact value that is 43% of 2302?
Answer: 873.76
First find 1% of 2302 which will be 2302/100=23.02
to find 43% of 2302 multiply 1% of 2302 with 43
43*23.02 = 873.76
Each diagram is made of smaller, identical pieces. Tell how many pieces you would shade to model 25%
Answer:
12 pieces
Step-by-step explanation:
5) Dan and Joan were able to clean the attic in 7 hours together, It takes
Joan 9 hours to complete the same job alone. Without help, how long
would it take Dan to complete the same job?
Answer:
9 hours im not really good at this but i hope i did my best ^.^ :)
It would take 31.5 hours for Dan to complete the same job.
What is work and time relationship?Work is the effort applied to produce a deliverable or accomplish a task. A certain amount of time (T) is taken to complete a certain work (W).
Work Done = Time Taken × Rate of Work.
Rate of Work = 1 / Time Taken.
Time Taken = 1 / Rate of Work.
According to the question
Dan and Joan were able to clean the attic in 7 hours together
i.e
Rate of Dan = D
Rate of Joan = J
now,
Rate of Work = 1 / Time Taken.
D + J = [tex]\frac{1}{7}[/tex]
It takes Joan 9 hours to complete the same job alone
i.e
J = [tex]\frac{1}{9}[/tex]
Rate of Dan :
D + J = [tex]\frac{1}{7}[/tex]
D + [tex]\frac{1}{9}[/tex] = [tex]\frac{1}{7}[/tex]
D = [tex]\frac{1}{7}[/tex] - [tex]\frac{1}{9}[/tex]
D = [tex]\frac{2}{63}[/tex]
Therefore , Time taken by Dan to complete the same job
As,
Time Taken = 1 / Rate of Work.
Time taken by Dan = [tex]\frac{63}{2}[/tex]
= 31.5 hr
Hence, It would take 31.5 hours for Dan to complete the same job.
To know more about work and time relationship here:
https://brainly.com/question/3854047
#SPJ2
Determine the value of to the nearest tenth.
0
26
Answer:
0.3
Step-by-step explanation:
0.26?
0.3
Help! It’s due it’s due in 30 minutes
Answer:
Contains two 6x6 triangles, contains one 12x3 rectangle, four 2x2 triangles, and two 2x2 squares.
88
Step-by-step explanation:
You only need the area of one side of this shape to find the total area.
((6*6)/2+(3*6)+(2*2)+(2*2))2 = 88. What's inside the parenthesis is the area for one side of the shape, then you can multiply that by two to get the entire area.
c)
How many quarters make a whole?
d) How many fifths make a whole?
e) How many tenths make a whole?
nta Excel in Mathematics - Book 3
108
Answer:
4 quarters
10 tenths
Step-by-step explanation:
Tenths[tex] \frac{1}{10} [/tex]
Quarter[tex] \frac{1}{4} [/tex]
Whole[tex] 1 [/tex]
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
[tex] 1 = \frac{1}{4}+\frac{1}{4}+\frac{1}{4}+\frac{1}{4} [/tex]
∴ There are 4 quarters to make a whole
[tex] 1 = \frac{1}{10}+\frac{1}{10}+\frac{1}{10}+\frac{1}{10}+\frac{1}{10}+\frac{1}{10}+\frac{1}{10}+\frac{1}{10}+\frac{1}{10}+\frac{1}{10} [/tex]
∴ There are 10 tenths to make a whole
15% of the skittles in andys bag are green. how many skittles are in the bag if 9 of them are green
Answer:
60
Step-by-step explanation:
9/15=0.6
0.6x100=60
Marco buys shampoo from a supplier at $7.25 per bottle.
He marksup the shampoo 20%.
What is the price after markup?
Answer:
7.45
Step-by-step explanation:
dont ask me to explain cuz I wont have a nice day
Answer:
The answer is $1.25
Step-by-step explanation:
hope this helped
CHECK YOUR UNDERSTANDING
The Wacky Widget Company sells widgets for
$4.00 each wholesale. A local store has a
markup of $1.20.
A. What is the retail price?
B. What percent is the markup price?
Answer:
Retail price = $5.20
Percentage of mark up price = 30%
Step-by-step explanation:
Company sells $4.00 each wholesale.
Now the local store which is the retailer has a markup of $1.20.
This means that the retail price is;
Retail price = wholesale price + mark up = $4.00 + $1.20
Retail price = $5.20
To find the percentage of the markup, it is the fraction of the wholesale price multiplied by 100%.
Thus;
Percentage of Markup is;
1.2/4 × 100% = 30%
goran spent $38 on fruit at the grocey store.He spent a total of 40$ at the store.what percentage of the total he spend of the fruit
Please help me answer this will give brainlst
Answer:
17° and 73°
Step-by-step explanation:
For two complementary angles, the sum of angles is equal to 90 degrees.
Let other angles = x
First angle = 5+4x ...(1)
ATQ,
5+4x+x=90 ...(2)
Equation (1) and (2) shows the equations for the given problems.
5+5x=90
5x = 85
x = 17°
Other angle = 17
First angle = 5+4x
= 5+4(17)
= 73°
So, the other two angles are 17° and 73° respectively.
Find the length of dm in the given fig.
Answer:
[tex]DM=12[/tex]
Step-by-step explanation:
(Let the point where the altitude from [tex]D[/tex] intersects [tex]AB[/tex] be called as point [tex]E[/tex].) First, let's find the area of parallelogram [tex]ABCD[/tex]. The area of a parallelogram is simply [tex]b*h=bh[/tex], where [tex]b[/tex] is the parallelogram's base and [tex]h[/tex] is the parallelogram's height. If we let [tex]AB[/tex] and [tex]DE[/tex] be the base and height respectively, since we are already given their lengths, we know that the area of parallelogram [tex]ABCD[/tex] will be [tex]AB*DE=15*8=120[/tex].
Now, how does this information matter, you might ask? Well, we can take either [tex]AB[/tex] or [tex]CB[/tex] to be the base and either [tex]DE[/tex] or [tex]DM[/tex] to be the height. In this case, let's take the latter two options, as we are looking to find the length of [tex]DM[/tex].
Therefore, we know that the area of parallelogram [tex]ABCD[/tex] can also be found by calculating [tex]CB*DM[/tex]. Since we know the values of the area and [tex]CB[/tex], we can write the following equation to solve for [tex]DM[/tex]:
[tex]Area = CB*DM[/tex]
[tex]120=10*DM[/tex] (Substitute [tex]Area=120[/tex] and [tex]CB=10[/tex] into the equation)
[tex]\frac{120}{10}=\frac{10*DM}{10}[/tex] (Divide both sides of the equation by [tex]10[/tex] to get rid of [tex]DM[/tex]'s coefficient)
[tex]12=DM[/tex] (Simplify)
[tex]DM=12[/tex] (Symmetric Property of Equality)
Hope this helps!
what is the coefficient of xy^2
in the expansion of (x+y)^3?
Step-by-step explanation:
Using Binomial Expansion,
(x + y)³
= 3C0 * x³ + 3C1 * x²y + 3C2 * xy² + 3C3 * y³.
Therefore the coefficient of xy² is 3C2 = 3.
Answer:
The coefficient of the xy² term is 3.
For your question about xy⁵, the coefficient is 6
And for the x²y² question, it is also 6
Step-by-step explanation:
We can simply expand the expression to find the answer:
(x + y)³
= (x + y)(x + y)(x + y)
= (x + y)(x² + 2xy + y²)
= x³ + 2x²y + xy² + x²y + 2xy² + y³
= x³ + 3x²y + 3xy² + y³
So the term term containing xy² has a coefficient of 3
Now, there's actually a simple way to do this, and that's using Pascal's triangle. If you're not familiar with it, here's a quick representation of the first few lines:
0 1
1 1 1
2 1 2 1
3 1 3 3 1
4 1 4 6 4 1
5 1 5 10 10 5 1
6 1 6 15 20 15 6 1
7 1 7 21 35 35 21 7 1
8 1 8 28 56 70 56 28 8 1
You'll notice that each number is simply the sum of the two numbers above it; below 4 and 6 wes see 10, below 20 and 15 is 35, etc.
This is very useful in this case, as the you may notice that the solution to each of the questions asked can be answered by this triangle. For instance, when we solved (x + y)³, the coefficients of the terms were 1, 3, 3, and 1. For a perfect square, it's 1, 2 and 1, and so on. So to get the answers to your questions, you need only look at this triangle.
For example, want the the coefficent of the fourth term in the expansion of (x + y)⁷, it's easy, just look at the seventh row, and look for the fourth number, which would be 35.
But as we're given the x and y powers, but not the position of the term, we need to work that out as well. Thankfully there's an easy trick to that. The exponents will always be like this
[tex]x^{n}y^0 + x^{n - 1}y^1 + x^{n - 2}y^2 + ..... + x^2y^{n - 2} + x^1y^{n - 1} + x^0y^{n}[/tex]
where n is the number we're raising the binomial to.
We could put together an equation to solve this, but instead of going through a whole lesson, I'll just update the answer at the top.
You can buy five cans for green beans at the village market for $2.20 you can buy 10 of the same cans of beans at Sam’s Club for $5.30 which place is better
Answer:
The village market is better than Sam's Club
Step-by-step explanation:
If you buy 5 more cans of green beans at the village, it will cost $4.40 in total. Therefore if you go buy the beans at Sam's club, the village one will be cheaper.
I GIVEEEEEEEEEE BRAINLISTT
Answer:
D: 50% on car payment and college savings
Step-by-step explanation:
225+375 = 600
50% of 1200 is 600
If your gross monthly income will be $3,750, you need to determine the net pay for your monthly budget. Your monthly net pay is
Answer:
$2,989.12
Step-by-step explanation:
The correct answer to the given question is $2,989.12. The monthly net pay is $2,989.12, when the gross monthly income is $3,750.
The deduction from the gross income is almost 20.29%.
The gross income is multiplied by 20.29% and then the answer is deducted from the gross income which gives monthly net pay as a result
$3,750 * 20.29% = $760.875
$3,750 - $760.875 = $2,989.12
Your monthly net pay is $2,989.12
Jennifer uses a coupon that gives you 20% off your order. If the total was $18 before the discount, then how much money did she save?
translate to words : 5(x+3)-6+7x
Answer:
five time in parenthesis x plus three close parenthesis minus six plus seven x
Step-by-step explanation:
five time in parenthesis x plus three close parenthesis minus six plus seven x
I NEED HELLPPPPPPPP
Answer:
51 people
Step-by-step explanation:
Answer:
51
Step-by-step explanation:
190 out of 300 is from England
100 out of 100×190/300 is from England
=63% (approximately)
according to the question
63%×80
63/100 × 80
51(approximately)
Add 2/7 + 3/7?
[tex]2 \7 + 3 \7[/tex]
Can someone help me out pls?
Answer:
58 degrees
Step-by-step explanation:
sally is taking a test
when she got her score it was 85% of 100% how many questions was on the test and how many did she get wrong
Answer:
There was 20 questions on the test.
She got 3 wrong.
Step-by-step explanation:
[tex]\frac{85}{100} = \frac{17}{20}[/tex]
20 - 17 = 3
There was 20 questions on the test.
She got 3 wrong.
Samantha spent 1/6 of her money on candy and 3/4 of her money on a movie ticket. What fraction of Samantha's money has been spent?
Answer:
11/12
Step-by-step explanation:
In 2009, two tickets to a certain American band's concert and two tickets to a certain British band's concert cost, on average, a total of $592. At those prices, four tickets to see this
American band and two tickets to see this British pand cost $842. What was the average cost of these American and British band tickets in 2009?
American band $
British band$
Two snow resorts offer private lessons to their customers. Big time ski mountain charges $5 per hour plus $50 insurance. Powder hill charges $10 per hour plus $30 insurance. For what number of hours is the cost of the lessons the same for each resort?
Answer:
4 hours
Step-by-step explanation
4 times 5+20
50+20+70
10 times 4 +40
30+40+70