can someone please please help me with this question !!!
Answer: b and d
Step-by-step explanation:
Since the roots are x=2 and x=6, we can write the equation as
\(f(x)=a(x-2)(x-6)\)
Substituting in the coordinates of the vertex,
\(-4=a(4-2)(4-6)\\\\-4=a(2)(-2)\\\\-4=-4a\\\\a=1\)
So, the equation is \(f(x)=(x-2)(x-6)\).
On expanding, we get \(f(x)=x^2 - 8x+12\)
m - 75 = 55,m = ?
80 points
Answer: = 130
Step-by-step explanation:
m - 75 = 55
1. Add 75 to both sides of the equation.
m - 75 + 75 = 55 + 75
2. Add it all up
m = 55 + 75
3. Therefore,
m = 130
, Hope this helps :)
Have a great day!!
Answer: = 130
Step-by-step explanation:
m - 75 = 55
1st Add 75 to both sides of the equation.
m - 75 + 75 = 55 + 75
2nd Add it all up
m = 55 + 75
3rd AND SOOOO
m = 130
Explain the steps needed to solve the inequality.
-3x + 4 > 25
Step-by-step explanation:
-3x + 4 > 25
-3x > 21 (subtract 4 on both sides)
x < -7. (divide -3 on both sides, flip the sign)
please helpppppppppp me
Answer:
y = 15x
Step-by-step explanation:
help please i give points
Answer:
Trapezoid
Step-by-step explanation:
1) Plot the points on a graph
2) Connect the points using a straight edge
3) The finished product is a trapezoid
I will upload an image to show you the plotted points
in regression analysis, measures the proportion of the variation in the dependent variable that is explained by the independent variable(s).
The coefficient of determination (R² or r-squared) is a statistical measure in a regression model that determines the proportion of variance in the dependent variable that can be explained by the independent variable.
What is variance?Variance is a measure of dispersion that, in contrast to range and interquartile range, accounts for the spread of all data points in a data collection. Along with the standard deviation, which is just the square root of the variance, it is the measure of dispersion that is most frequently employed. The statistical assessment of the variation in numbers within a data collection is known as variance. In more detail, variance assesses how far apart each number in the collection is from the mean (average) and, consequently, from each other.
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What is the value of x?
Enter your answer in the box.
x =
Answer:
x = 20
Step-by-step explanation:
Since there's 2 lines intercepting each other, the angle opposite of the other is the same.
3(20) + 50 = 110
6(20) - 10 = 110
Answer:
3x+50=6x-10
50+10=6x-3x
60=3x
Devide both side by 3 then x=20
HELP IM BEING TIMEDDDDDDDDDDDDDDDDDDD
Answer:
- 4
Step-by-step explanation:
5 + -3 = 2
2 - 6 = - 4
Hope this helps! :)
T/F. a vector b inrm is in the range of t if and only if ax=b has a solution
The statement "a vector b in R^m is in the range of matrix A if and only if the equation Ax = b has a solution" is true.
The range of a matrix A, also known as the column space of A, consists of all possible linear combinations of the columns of A. If a vector b is in the range of A, it means that there exists a vector x such that Ax = b. This is because the range of A precisely represents all the possible outputs that can be obtained by multiplying A with a vector x.
Conversely, if the equation Ax = b has a solution, it means that b is in the range of A. The existence of a solution x guarantees that the vector b can be obtained as an output by multiplying A with x.
Therefore, the statement is true: a vector b in R^m is in the range of matrix A if and only if the equation Ax = b has a solution.
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salma is saving money to buy a gamefar she has saved 16which is one-fourth of the total cost of the gameHow much does the game cost?
Answer:
64
Step-by-step explanation:
if she has 16$ and that's only 1/4 of the money to get that game you wanna multiply 16x4
16x4= 64
Quick Question!! Help me out :)
S is the midpoint of RT. T has coordinates (-10,12), and S has coordinates (3,7). Find the coordinates of R.
Answer:
R: (16, 2)
Step-by-step explanation:
Let (x, y) be the point R
(x - 10)/2 = 3 and (y + 12)/2 = 7
x - 10 = 6 y + 12 = 14
x = 16 y = 2
R: (16, 2)
evaluate in closed form the sum f()=sin() 1/3sin(2) 1/5sin(3) 1/7sin(4) ... (you may assume 0<< for definiteness).
The given sum can be expressed as:
f(x) = sin(x)/3 + sin(2x)/5 + sin(3x)/7 + sin(4x)/9 + ...
We can simplify this expression using the identity:
sin(nx) = Im(e^(inx))
where Im(z) denotes the imaginary part of complex number z, and e^(ix) is the complex exponential function.
Using this identity, we can rewrite f(x) as:
f(x) = Im [e^(ix)/3 + e^(2ix)/5 + e^(3ix)/7 + e^(4ix)/9 + ...]
We can then use the formula for the sum of an infinite geometric series:
1/(1 - r) = 1 + r + r^2 + r^3 + ...
where |r| < 1.
In our case, we have:
r = e^(ix)/3
So the sum can be written as:
f(x) = Im [1/(1 - e^(ix)/3)]
To evaluate this expression, we can use the complex conjugate:
1/(1 - e^(ix)/3) = (1 - e^(-ix)/3) / (1 - 2cos(x)/3 + 1/9)
We can then use the identity:
Im(z) = (z - z*) / (2i)
where z* is the complex conjugate of z.
Using this identity, we can simplify f(x) to:
f(x) = (1/2i) [(1 - e^(-ix)/3) / (1 - 2cos(x)/3 + 1/9) - (1 - e^(ix)/3) / (1 - 2cos(x)/3 + 1/9)*]
This simplifies to:
f(x) = (3/4) [sin(x)/(1 - 2cos(x)/3 + 1/9) - sin(-x)/(1 - 2cos(x)/3 + 1/9)*]
Since sin(-x) = -sin(x), we have:
f(x) = (3/2) [sin(x)/(1 - 2cos(x)/3 + 1/9)]
This is the closed form of the sum f(x).
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Can you help me finish my homework fast please and thank you (pg. 21)
Answer:
(-7)(-6)= 42
(-7)(7)=-49
Answer:
Starting with the odd problems
42,-24,10,-49,6,-45,63,-25,-90,-40,-90,-72
Now the even problems
-16,-27,-100, (cannot read #8), -8,-14,-27,6,4,8,81,-20,-14,-28,-48
These should be the answers you are looking for.
Given that F(x) = x²-18x+80 and g(x)=x-8 Find f(x)-g(x) and express the result as a polynomial in simplest form.
Answer:
x^2-19x+88Step-by-step explanation:to find f(x)-g(x)
f(x)-g(x)=(x^2-18x+80)-(x-8)
=x^2-18x+80-x+8
pair like terms
=x^2-18x-x+80+8
=x^2-19x+88
Which equation represents 6 more than x equals 16? *
A-X + 6 = 16
B-O 6x + 6 = 16
C-X + 16 = 6
D-O x-6 = 16
Answer:
A) x + 6 = 16
Step-by-step explanation:
Answer:
I think its A no is correct x ± 6 = 16
03.06 LC)
Which is the standard equation of the hyperbola centered at the origin, with a vertical transverse axis and values of a = 7 and b = 10?
The standard equation of hyperbola centered at the origin with the given values is x^2 / 49 - y^2 / 100 = 1 .
What is Hyperbola ?
a plane curve generated by a factor so moving that the difference of the distances from two constant points is a consistent : a curve formed by way of the intersection of a double right circular cone with a plane that cuts each halves of the cone.
Given,
The standard equation of the hyperbola centered at the origin with given values a=7 and b=10 .
[(x2 / a2) – (y2 / b2)] = 1.
vertical axis with values a = 7 and b=10 .
[(x2 / a2) – (y2 / b2)] = 1.
(x^2 / 7*7) - ( y^2/ 10*10) = 1
x^2 / 49 - y^2 / 100 = 1
Hence , the standard equation of hyperbola centered at the origin with the given values is x^2 / 49 - y^2 / 100 = 1 .
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Which expression is equivalent to (0.5x+7)−(1.2x−3)?
(0.5x+1.2x)+(7+3)
(0.5x+(−1.2x))+(7+(−3))
(0.5x+(−1.2x))+(7+3)
(0.5x+1.2x)+(7+(−3))
3+1-4+7=?
I need help with this
Answer:
Step-by-step explanation:
first step: 3 + 1 = 4
second step: 4 - 4 = 0
third step: 0 + 7 = 7 (the answer is 7 )
what is quadratic equations?
Answer:
In algebra, a quadratic equation is any equation that can be rearranged in standard form as ax^{2}+bx+c=0 where x represents an unknown, and a, b, and c represent known numbers, where a ≠ 0. If a = 0, then the equation is linear, not quadratic, as there is no ax^2 term.
hope it is helpful
Step-by-step explanation:
in algebra, a quadratic equation is any equation that can be rearranged in standard of ax^{2}+bx+c=0 this is my answerPLS PLS i need step by step please and undefined numbers to be shown please THANK YOU!
1)The expression 4x^2-16x+12/x^2-9 is undefined when the denominator, x^2-9, equals zero because division by zero is undefined.
x^2-9 equals zero when x equals 3 or x equals -3. Therefore, the expression is undefined at x = 3 and x = -3. In all other cases, the expression is defined.
2) The given expression is:
(5-2x)/(x+2) + x^2/(x^2-4) - 5
To simplify this expression, we need to first find the LCD (least common denominator) of the two fractions. The denominator of the first fraction is x+2, and the denominator of the second fraction is x^2-4, which can be factored as (x+2)(x-2). So the LCD is (x+2)(x-2). Now we can rewrite the expression with this common denominator:
[(5-2x)(x-2) + x^2(x+2) - 5(x+2)(x-2)] / [(x+2)(x-2)]
Expanding the brackets and simplifying, we get:
(-x^3 - 3x^2 - 3x + 5) / [(x+2)(x-2)]
This expression is undefined when the denominator, (x+2)(x-2), equals zero because division by zero is undefined.
(x+2)(x-2) equals zero when x equals -2 or x equals 2. Therefore, the expression is undefined at x = -2 and x = 2. In all other cases, the expression is defined.
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is 4 2/3 greater than 4 5/6
Answer:
4 \(\frac{5}{6}\)
Step-by-step explanation:
Make them equivalent
4 \(\frac{2}{3}\) if I multiply the numerator (top) and the denominator (bottom) by 2 I get
4\(\frac{4}{6}\)
4 \(\frac{5}{6}\) is greater than 4 \(\frac{4}{6}\)
Marco charges $42.99 for a
repair that takes 2 hours.
Marco charges $87.99 for a
repair that takes 5 hours.
for the slope and y intercept
Answer:
y-intercept= 12.99 slope= 15.00x+12.99
Step-by-step explanation:
please help answer this
Answer:
The second one, the third one, and the fifth one.
Step-by-step explanation:
Just look at the proportions and see id the function matches the proportion. Use "soh cah toa" or "sin is opposite/hypotenuse, cos is adjacent/hypotenuse, and tan is opposite/adjacent." Hope this helps.
3x2 – 7x + 9, when x = 4
Answer:
-13
Step-by-step explanation:
3x2 - 7x +9
3x2 - 7(4) +9
3x2 - 28 +9
6-28+9
-22+9
-13
Hope this helped and have a great day
(Please brainliest)
Answer: 11
Step by step explanation = 5x - 16x
9 - 20
= 11
Suppose X has an exponential distribution with rate parameter λ1. Suppose Y has an exponential distribution with rate parameter λ2. Suppose X and Y are independent. Calculate P(X > Y).
The probability of X being greater than Y is equal to 1 minus the probability of X being less than or equal to Y multiplied by the probability of Y being less than or equal to X, which can be expressed as 1 minus (1 - e^(-(λ1 + λ2)t))/2, or e^(-(λ1 + λ2)t)/2.
P(X > Y) = 1 - P(X ≤ Y) = 1 - (1 - e^(-(λ1 + λ2)t))/2 = e^(-(λ1 + λ2)t)/2
1. P(X > Y) = 1 - P(X ≤ Y)
2. P(X ≤ Y) = P(X ≤ Y ∩ Y ≤ X)
3. P(X ≤ Y ∩ Y ≤ X) = P(X ≤ Y)P(Y ≤ X) (Since X and Y are independent)
4. P(X ≤ Y) = 1 - P(X > Y)
5. P(Y ≤ X) = 1 - P(Y > X)
6. P(X > Y) = 1 - P(X ≤ Y)P(Y ≤ X)
7. P(X > Y) = 1 - (1 - e^(-(λ1 + λ2)t))/2
8. P(X > Y) = e^(-(λ1 + λ2)t)/2
The probability of X being greater than Y is equal to 1 minus the probability of X being less than or equal to Y. Since X and Y are independent, the probability of X being less than or equal to Y and Y being less than or equal to X is equal to the product of the probabilities of X being less than or equal to Y and Y being less than or equal to X. The probability of X being less than or equal to Y is equal to 1 minus the probability of X being greater than Y, and the probability of Y being less than or equal to X is equal to 1 minus the probability of Y being greater than X. Therefore, the probability of X being greater than Y is equal to 1 minus the probability of X being less than or equal to Y multiplied by the probability of Y being less than or equal to X, which can be expressed as 1 minus \((1 - e^(-(λ1 + λ2)t))/2, or e^(-(λ1 + λ2)t)/2.\)
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URGENT The table shows the value of a car over time that was purchased for $20,600, where x is years and y is the value of the car in dollars. A. Write and exponential regression equation for this set of data, rounding all coefficients to the nearest hundredth. B. Using the equation, determine the value of the car, to the nearest cent, after 15 years
The exponential equation is \(y=ab^x\). Let's look at some properties of this equation.
'b' must be greater than 0 and not equal to 1. b>0, b1.
What is exponential regression?The formula for exponential regression is \(y = ab^x\). This refers to the process of arriving at the best exponential curve equation for your dataset. This regression is very similar to linear regression and tries to find the best (straight line) line equation for a data set.Exponential regression refers to the process of obtaining the best exponential curve equation for a data set.A model that explains the process of doubling growth. The exponential equation is \(y=ab^x.\)Exponential functions are commonly used in life sciences and are used to represent the specific quantity that you want to model. B. Population size modeled over time. Plots of experimental data are usually plotted with time on the x-axis and quantity on the y-axis.To learn more about coefficient visit:
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The exponential equation is y = \(ab^{x}\) . Let's look at some properties of this equation.
'b' must be greater than 0 and not equal to 1. b>0, b1.
What is exponential regression?The formula for exponential regression is y = \(ab^{x}\) . This refers to the process of arriving at the best exponential curve equation for your dataset. This regression is very similar to linear regression and tries to find the best (straight line) line equation for a data set.
Exponential regression refers to the process of obtaining the best exponential curve equation for a data set.
A model that explains the process of doubling growth.
The exponential equation is y = \(ab^{x}\)
Exponential functions are commonly used in life sciences and are used to represent the specific quantity that you want to model. B. Population size modeled over time. Plots of experimental data are usually plotted with time on the x-axis and quantity on the y-axis.
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If x/y + y/x = -1 , find the value of x^3 - y^3
Answer:
0
Step-by-step explanation:
Multiplying the first equation by xy, we have ...
x^2 +y^2 = -xy
Factoring the expression of interest, we have ...
x^3 -y^3 = (x -y)(x^2 +xy +y^2)
Substituting for xy using the first expression we found, this is ...
x^3 -y^3 = (x -y)(x^2 -(x^2 +y^2) +y^2) = (x -y)(0) = 0
The value of x^3 -y^3 is 0.
CHARITY This year, James raised $95 for an animal shelter. This is 5
times the amount he saved. The equation 5x = 95 can be used to find last
year's fundraising amount. Find last year's fundraising amount.
Please help I have know clue what to do!!
Answer: Hi, sorry if I’m late to answering but the answer is 19
Step-by-step explanation:
You divide each number in the equation by 5. So, 5x divided by 5 = 1. We cannot use 5 divided by 5 because it will equal 1 so we ignore that and go to 95 divided by 5 = 19. Therefore, 19 is your answer!!! (Hope this helped)
Use the Distance Formula to write an equation of the parabola with vertex (0,0) and directrix y = -6
An equation of the parabola is y=
Answer:
x^2 + y^ = 36
Step-by-step explanation:
See attached worksheet.
HELP ME PLEASE
23. Two swimmers are training over a two-week period to increase the number of laps each can do consecutively. Swimmer A can do 14 laps to start, and increase her total by 3 laps each day. Swimmer B is charting her progress in the table below. Compare the initial values for each.
Answer:
Answer is A
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Answer is C because if swimmer A does 14 laps to start an 3 laps every day after that and on the chart swimmer B does 11 laps to start and 2 laps every day after that you would compare.
on day 3 swimmer B has 17 (shown on chart)
on day 3 swimmer A has 23 (14, 17, 20, 23)
if you would want it to complicate it 14:3 and 11:2
14 ÷ 14 is 1
3 ÷ 14 is .214
11 ÷ 11 is 1
2 ÷ 11 is .181