The required regression equation for the line of best fit, where x represents the month and y-hat represents the predicted time is;
y = -2.78x + 48.5
How to find the regression equation?A regression equation is defined as the equation that is used in stats to find out what relationship, if any, exists between sets of data
From the given table, let x represents the month and y represents the time. Thus;
Mean of x; x-bar = (1+2+3+4+5+6)/6 = 21/6
x-bar = 3.5
Mean of y; y-bar = (47+43+39+36+35+33)/6
y-bar = 233/6 = 38.83
∑x = 21
∑y = 233
Using statistics calculator;
Sum of squares (SSX) = 17.5
Sum of products (SP) = -48.5
The general form of a regression Equation is;
y-bar = bx-bar + a
Where;
b = SP/SSX
= -48.5/17.5
= -2.77143
a = y-bar - b(x-bar) = 38.83 - (-2.77×3.5) = 48.53333
y = -2.78x + 48.5
Thus, the required regression equation is y = -2.78x + 48.5 for the line of best fit.
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100-(8x2)+15/3 and pls explain
Answer:
89
Step-by-step explanation:
Firstly u need to calculate the numbers in the bracket .
So,
8×2 = 16
15/3 = 5
100 - 16 + 5 = 89
Find the range of the following numbers: 10 78 22 354 75 81 8 6 A 8 C 27 B 81 D 78
Answer:
348
Step-by-step explanation:
6 8 10 22 75 78 81 354
subtract the highest number to the lowest number
what equals 7x+19 pls help
Answer:
it’s unknown
Step-by-step explanation:
the variable is unknown so it would stay 7x + 19 until you know the variable unless you’re able to do 26x
HELP ASAPPPPP PLZZZZ Question in pic!!!!!
Step-by-step explanation:
Given
5y + 68 = 3y + 96 (vertically opposite angles) and
3x + 18 = 5x + 2 (vertically opposite angles)
Now solve for x.
[tex]3x + 18 = 5x + 2 \\ 3x + 18 - 5x = 2 \\ - 2x + 18 = 2 \\ - 2x = 2 - 18 \\ - 2x = - 16 \\ x = - 16 \div - 2 \\ = 8[/tex]
Now Solve for y.
[tex]5y + 68 = 3y + 96 \\ 5y + 68 - 3y = 96 \\ 2y + 68 = 96 \\ 2y = 96 - 68 \\ 2y = 28 \\ y = 14[/tex]
The first five terms in a pattern are shown below. -0.5, -0.25, 0 , 0.25, 0.5, . . . Which equation represents the pattern?
Answer:
x + 0.25
Step-by-step explanation:
In this equation, x is representing an integer ( - 0.5, - 0.75, 0, 0.25) whilst 0.25 is a constant
Wanda's dog eat 35 pounds of dog food each week. At this rate, how many pounds of dog food they eat in 12 days what is the answer?
Answer:
420
Step-by-step explanation:
35 x 12 = 420
Answer:
420
Step-by-step explanation:
This list gives the height of different plants in inches. 10.25, 11.25, 11.00, 10.50, 10.50, 11.00, 10.75, 10.25, 11.00, 10.25, 10.50, 10.75, 10.25, 10.25, 10.50, 11.25, 11.00, 10.75 Create a line plot to display the data. To create a line plot, hover over each number on the number line. Then click and drag up to plot the data.
Answer:
10.25 xxxx 10.50 xxxx 10.75 xxx 11.00 xxxx 11.25 xx
Step-by-step explanation:
hope this helps
Answer:
10.25 | 5
10.50 | 4
10.75 | 3
11.00 | 4
11.25 | 2
Step-by-step explanation:
I took test on K12.
Here if proof I got it correct.
170% of what number is 40?
Provide and exact fraction answer
Answer: 23.53
Step-by-step explanation:
We have, 170% × x = 40
or,
170
100
× x = 40
Multiplying both sides by 100 and dividing both sides by 170,
we have x = 40 ×
100
170
x = 23.53
If you are using a calculator, simply enter 40×100÷170, which will give you the answer.
Simplify this to the lowest form: 2c^2 - 6 + c^2 - 3 + 3c^3
Answer:
7c^2 - 9
Step-by-step explanation:
2c^2 - 6 + c^2 - 3 + 3c^3
7c^2 - 9
What is x-2.3y=0.6 -x+5.1y=-6.2
Find x: a - bx = cx + d
Answer:
x= -(d-a)/(b+c)
Step-by-step explanation:
Move all terms to the left side and set equal to zero. Then set each factor equal to zero
For what values of x is the expression below defined?
A. 4> xs-1
B. 45xs1
C. 4 >x>1
D. -4sx< 1
Answer:
D.
Step-by-step explanation:
D.-4sx<1!I think is d
Please help! The question is on the photo
Answer:
(0, 3) (0, -4) (-5, 4) (1, 1)
Which of the following is a valid conclusion about the data?
Answer: D
Step-by-step explanation:
Find the measure of angle MNQ
Answer:
∠MNO = 158°
Step-by-step explanation:
∠MNO = 1/2(91° + 225°) = 158°
question 8 thank youuu
Step-by-step explanation:
hope this help have a great day
how many 3 digit whole numbers are there between 99 and 1000
Answer:
901
Step-by-step explanation:
1000 - 99 = 901
thats how you find the answer
Answer:
910
Step-by-step explanation:
Review Exercise 14b
Find the truth set of the following equations
i) 3(2x+1)=8
Answer:
5/6
Step-by-step explanation:
x = 5/6.
What triangle congruence postulate would you use to prove these triangles are congruent.
Answer:
I don't know
Step-by-step explanation:
sorry
Please help! *Giving brainiest* due really soon
what's 1 + 1 i already know this but i’m just looking out for yall
Answer
2
Step-by-step explanation:
1+1=2
Answer: Window
Step-by-step explanation:
1+1 the the = on top :D
find the slope-intercept equation of the line that passes through (0,1) and has a slope of -2/3
Answer:
y = -2/3x + 1
Step-by-step explanation:
We already know the slope, so all we need to do is find the y-intercept. To find that, we need to plug the coordinates into the equation so far, which is,
y = -2/3x + b
1 = -2/3(0) + b
1 = 0 +b
1 = b
So the equation is y = -2/3x + 1
What is the total number of outcomes in each situation?
rolling two number cubes
A. 8
B. 18
C. 36
D. 12
Answer:
36
Step-by-step explanation:
(6x2 - 2x) + (5x-7)
A. 30x3 - 52x2 + 14x
B. 6x2 - 7x+7
c. 11x2 - 9x
D. 6x2 + 3x - 7
Answer:
D. 6x2 + 3x - 7
Step-by-step explanation:
neeed help with this thanks
Solve for x, then find the m HED. Please helppp
Answer:
x=3, HED =39
Step-by-step explanation:
Solution :
[tex]10x + 21 + 13x = 90[/tex]
[tex]23x = 90 - 21[/tex]
[tex]23x = 69 = > x = 3[/tex]
Angle HED = 13 × 3 = 39°
Hope this helps!
I'll give brainlyest hel
Answer:
66 m^2
Step-by-step explanation:
6*11=66
What is the probability of picking a red marble
and keeping it, picking another red marble and
keeping it, then picking a blue marble? (leave
answer in fraction form in lowest terms)
how many marbles are there
What is the equation of the line shown in the graph?
5. Find the length of the side denoted b "y" to the nearest tenth.
Answer:
y = 24√3, or approximately 41.6
Step-by-step explanation: √3 36
Here the ratio 36/y = cosine of 30 degrees = ------- = ------
2 y
Cross-multiplying yields (√3)y = 72, so y = 72/√3, or 72√3/3, or y = 24√3