Answers
Answer:
C. [tex]y = -0.30\cdot x^{2}-0.48\cdot x+15.83[/tex]
Step-by-step explanation:
The best fit curve for the given set of points is the quadratic form, which is defined by:
[tex]y = A\cdot x^{2}+B\cdot x + C[/tex] (1)
Where:
[tex]x[/tex] - Independent variable.
[tex]y[/tex] - Dependent variable.
[tex]A[/tex], [tex]B[/tex], [tex]C[/tex] - Coefficient.
The coefficient associated with the second-power component determines whether vertex is an absolute maximum or not. The vertex is an absolute maximum if and only if [tex]A < 0[/tex], otherwise it is an absolute minimum. From image we notice that resulting fit curve will have an absolute maximum, then [tex]A < 0[/tex]. Hence, the correct answer is C.
Answer: C
Step-by-step explanation:
Related Questions
Johnny gets $40 per week as an allowance. If he goes to the movies and spends $3 for popcorn and $5 on soda, what percent of his allowance did he spend? *
Answers
what is 2-2? i dont know
Answers
Answer:
2-2 = 0
Step-by-step explanation:
2 is a positive number
While the second 2 is a negative 2
(-2)
so a positive and a negative number can cancel eachother out
Therefore the answer is 0 since they are both 2 :)
√−100 = + i
edge2021 Algebra 2
Answers
Step-by-step explanation:
√-100
= √100 * √-1 (√mn = √m * √n)
= 10i. (i² = -1, i = √-1)
wHaT iS tHe aReA I NEED HELP
Answers
Answer:33 square feet
Step-by-step explanation:
Split the shape into two rectangles
3x7
6x2
Solve:
3x7=21
6x2=12
Add
21+12=33
Answer:
the area is 32
Step-by-step explanation:
what is the value of x when x:3=2.13
Answers
Answer:
The other dude was wrong :( the answer is 6.39
Step-by-step explanation:
I took the test on K12
The equation of the line?
Answers
Answer:
○ [tex]\displaystyle y = 2x + 7[/tex]
Step-by-step explanation:
Use the Slope-Intercept Formula instead of the Point-Slope Formula because it is MUCH, MUCH faster, plus parallel equations have SIMILAR RATE OF CHANGES [SLOPES ], so [tex]\displaystyle 2[/tex] remains as is:
[tex]\displaystyle y =mx + b \\ \\ 3 = 2[-2] + b → 3 = -4 + b; 7 = b \\ \\ \boxed{y = 2x + 7}[/tex]
I am joyous to assist you at any time.
Mark has less than 20.00 to spend on the cost of dinner
Answers
(3x + 4) (1 - 1)
Evaluate the limit lim
a.-3
b. 3
c. 1
d limit does not exist
Answers
Use the theoretical method to determine the probability of the following outcome and event. State any assumptions made.
Tossing two coins and getting either one head or two heads
Choose the correct answer below.
Answers
Answer:
Assuming that each coin is fair and is equally likely to land heads or tails, the probability is 3/4.
I didn’t get taught his so I need help
Answers
Answer:
(-2,1)
Step-by-step explanation:
sooo
x comes first and y comes next
HELP! whoever gets it right gets brainliest!
Answers
Answer:
The answer is B
Step-by-step explanation:
Answer is B
Answer:
The answer is B
Step-by-step explanation:
BBBBBBBBBBBBBBBBBBBBBBBBBB IS THE ANSWER
?????????????????????
Answers
Answer:
g(3) = 0
Step-by-step explanation:
You know g(x) = 3x - 9. So, to find g(3), you have to replace x by 3 on the other side.
g(3) = 3(3) - 9
You can solve this.
g(3) = 9 - 9
g(3) = 0
Answer:
0
Step-by-step explanation:
Harper knows he is 50 yards from school. The map on his phone shows that the school is 34 inch from his current location.
How far is Harper from home, if the map shows the distance as 3 inches?
Answers
so 1 inch = 1.47058824 yards
3 inches = 4.41176471
you can round this number up to 4.41 yards depending on what the paper says
x^2+5x-6 how do i factor this
Answers
Answer:
Step-by-step explanation:
you have to use the quadratic equation,
and we will get 2 roots,
x=1 and x=-6
(x-1)(x+6)
The area of the parallelogram below is ____ square meters.
Answers
Answer:
45 cm2
Step-by-step explanation:
your welcome I guess?
im doing the same test btw
EDIT: i finished my test this answer is wrong. pls do search for a different answer. because mine is wrong.
Help pleasee needed
Answers
Answer:
Yes
AA similarity
DCE
Step-by-step explanation:
plz give thx and brainliest!
pls help, you have to write in fraction form.
Answers
522% of 175 is 91
Answer:
42/145
Step-by-step explanation:
i tried might be wrong
Please Help!!!!! I will give points! Also can you show the work please!! :D
Answers
Answer:
x = 132
Step-by-step explanation:
Angle S = 48 Angle T = 90 Angle W =
180 - 48 = 132
132 - 90 = 42
Angle W = 42
180 - 42 = 132
x = 132
Ivy and Andrey were asked to find an explicit formula for the sequence -100,-50,0,50,...−100,−50,0,50,...minus, 100, comma, minus, 50, comma, 0, comma, 50, comma, point, point, point, where the first term should be f(1)f(1)f, left parenthesis, 1, right parenthesis.
Ivy said the formula is f(n)=-100+50(n-1)f(n)=−100+50(n−1)f, left parenthesis, n, right parenthesis, equals, minus, 100, plus, 50, left parenthesis, n, minus, 1, right parenthesis.
Andrey said the formula is f(n)=-150+50nf(n)=−150+50nf, left parenthesis, n, right parenthesis, equals, minus, 150, plus, 50, n.
Which one of them is right?
Answers
Answer:
both
Step-by-step explanation:
need help with this
Answers
Answer:
y = 1
Step-by-step explanation:
Since 15 and 5, 18 and 6, and 27 and 9 all have 3 in common, then 3 should go into 1.
Answer:
1
Step-by-step explanation:
equation is always x/3=y
Find the x- and y-intercepts of the graph of the equation.
-4x + 2y = 0
Plz help
Answers
Answer:
hey you can also go on m a t h w a y to find this!
Step-by-step explanation:
both are (0,0)
(13x+2)+(3x-4)+(5x-7)
Answers
Answer:
13x+2+3x-4+5x-7=180
Step-by-step explanation:
Need help #1. The answer is shown, but I don’t know how to get to the answer. Please teach and show steps.
Answers
Answer:
B
Step-by-step explanation:
We are given that x and y are functions of time t such that x and y is a constant. So, we can write the following equation:
[tex]x(t)+y(t)=k,\text{ where $k$ is some constant}[/tex]
The rate of change of x and the rate of change of y with respect to time t is simply dx/dt and dy/dt, respectively. So, we will differentiate both sides with respect to t:
[tex]\displaystyle \frac{d}{dt}\Big[x(t)+y(t)\Big]=\frac{d}{dt}[k][/tex]
Remember that the derivative of a constant is always 0. Therefore:
[tex]\displaystyle \frac{dx}{dt}+\frac{dy}{dt}=0[/tex]
And by subtracting dy/dt from both sides, we acquire:
[tex]\displaystyle \frac{dx}{dt}=-\frac{dy}{dt}[/tex]
Hence, our answer is B.
Answer:
Let x and y be functions of time t such that the sum of x and y is constant.
(B) is the right answeri need help! please....
Answers
Answer: the elapsed time is 3 hours and 45 minutes, so option C.
The nth term of a sequence is 2n + 1
The nth term of a different sequence is 3n - 1
Work out the three numbers that are in both sequences and also between 20 and 40
Answers
Answer:
The three numbers are 23, 29 and 35.
Step-by-step explanation:
Given: The nth term of a sequence is 2n+1 and the nth term of a different sequence is 3n-1.
To find: The three numbers that are in both sequences and also between 20 and 40.
Consider both the sequences.
Put n = 11 in the nth term 2n+1, we get 23.
So, the 11th term of first sequence is 23.
Now put n = 8 in the nth term 3n-1, we get 23.
So, the 8th term of the second sequence is 23.
Therefore, first number that is in both sequence and lies between 20 and 40 is 23.
Now put n = 14 in the nth term 2n+1, we get 29.
So, the 14th term of first sequence is 29.
Put n = 10 in the nth term 3n-1, we get 29.
So, the 10th term of the second sequence is 29.
Therefore, second number that is in both sequence and lies between 20 and 40 is 29.
If we put n = 17 in the nth term 2n+1, then we get 35.
That is, 17th term of first sequence is 35.
Now we put n = 12 in the nth term 3n-1, then we get 35.
That is, 12th term of second sequence is 35.
So, third number that is in both sequence and lies between 20 and 40 is 35.
Hence, the three numbers that are in both sequences and also between 20 and 40 are 23, 29 and 35.
6=xy does this show direct variation Explain your reasoning. ANSWER THIS PLZ
Answers
Answer:
No. It is an inverse variation.
Step-by-step explanation:
6= xy
Making y the subject of formula:
[tex]y = \frac{6}{x} [/tex]
For a direct variation, the equation would be in the form of y=kx, where k is a constant.
However, the equation above is in the form of [tex]y = \frac{k}{x} [/tex].
Thus, 6=xy does not show direct variation.
r/3+2=21 solve for r
Answers
Answer:
r=63
Step-by-step explanation:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
r/3-(21)=0 r
Simplify —
3
r
— - 21 = 0
3 2.1 Subtracting a whole from a fraction
Rewrite the whole as a fraction using 3 as the denominator :
21 21 • 3
21 = —— = ——————
1 3
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
The graph at the bottom shows the relationship of the amount of time (in seconds) to the distance (in feet) run by a jaguar.
What does the point (5,290) represent in the context of the situation?
Answers
Answer:
5,290 repersent the distence that the jaquar jumped . and ran.
Step-by-step explanation:
pleas mark brainist plz happy to help
Melissa runs a mile in 8 minutes 30 seconds. At this rate, how many full miles will she run in 45
minutes?
Answers
Answer:
Time measure: 8 miles = 30 seconds We are given 45 minutes × 60 seconds /30= 90 milesThere are 3 boys for every 4 girls in the library. If there is 91 people in the library
a) How many boys are there in the library?
b) How many girls are there in the library?
Answers
Answer:
8
Step-by-step explanation:
Answer:
52 girls and 39 boys (multiply each by 13)
Step-by-step explanation:
4 x 13 = 52
3 x 13 = 39
= 91