Answer:
D
Step-by-step explanation:
The only option with coordinates within the triangle is D.
Coordinates included within the triangle. (-1, 0), (-1, -2), and (-1, -1)
(-1, -1) is the only one listed in the given options.
F(x)=(x+2)^2 (x-3) graph the function
The value of the equation f ( x ) is
f ( x ) = x³ + x² - 8x - 12
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
f ( x ) = ( x + 2 )²( x -3 ) be equation (1)
Now , on simplifying the equation , we get
f ( x ) = ( x + 2 )²( x -3 )
f ( x ) = ( x² + 4x + 4 ) ( x - 3 )
Now , multiplying each term with ( x - 3 ) , we get
f ( x ) = ( x - 3 ) x² + ( x - 3 ) 4x + ( x - 3 ) 4
f ( x ) = x³ - 3x² + 4x² - 12x + 4x - 12
On simplifying the equation ,we get
f ( x ) = x³ + x² - 8x - 12
Now , the value of the equation f ( x ) = x³ + x² - 8x - 12
On graphing the equation , we get
The graph of the equation f ( x ) = x³ + x² - 8x - 12 is shown below
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Joseph paid $10 for six avocado at a grocery mart he wants to know what the price will be buying different numbers of avocado what is the price of 9 out of avocado
Answer: $15
9 avocados = $15
Step-by-step explanation:
1 x 3 = 9
5 x 3 = 15
Our Data:
Avocados Price (dollars)
3 5
6 10
9 15
So, our answer is $15
Evaluate the definite integral of sin^5(x)dx from 0 to pi/2.
Step-by-step explanation:
The definite integral of sin^5(x)dx from 0 to pi/2 can be evaluated using the method of substitution.
Let u = sin(x), then du = cos(x)dx
The integral becomes:
∫sin^5(x)dx = ∫u^5du from 0 to sin(π/2)
= (u^6)/6 evaluated at sin(π/2) and 0
= (sin^6(π/2))/6 - 0
= (1^6)/6
= 1/6
So, the definite integral of sin^5(x)dx from 0 to pi/2 is equal to 1/6.
What equation(s) represent the vertical asymptote(s) of the graph of y = 1/x^2 -4? J) x= -4 and x =4 K) x= -2 and x =2 L) x= 0 only M) x= 2 only N) x= 4 only
The denominator of the function, n(x), is the place where vertical asymptotes can be located. If the numerator, t(x), is not zero for the same value of x, then the vertical asymptotes can be determined by solving the equation n(x) = 0 where n(x) is the denominator.
How to find the calculation?Despite not being a part of the function graph, a vertical asymptote is a vertical line that serves as a guide.
It happens at an x-value that is outside the function's domain, therefore the graph can never cross it.
1/x^2 -4
Domain of 1/x² - 4 :
Solution : x < -2 or -2 < x < 2 or x > 2
Interval Notation ; ( -∝ , -2) ∪ (-2 ,2) ∪ (2 , ∝).
Range of 1 / x² - 4 :
Solution : f(x) ≤ - 1/4 or f(x) > 0
Interval Notation : ( -∝ , - 1/4) ∪ (0,∝)
Axis interception points of 1 / x² - 4 :
y Intercepts : (0 , - 1/4)
Asymptotes of 1 / x² - 4:
Verticals x = -2. x = 2,
Horizontal y = 0
Extreme Points of 1/x² - 4 :
Maximum (0, -1/4).
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Which of the following is a horizontal line?
1) y = x
2) x = 4
3) y = 4
4) y = -4x + 1
Answer:
3) y=4
Step-by-step explanation:
Answer:
y=x
Step-by-step explanation:
bcoz in graph work its normally y=x
guys please help it's due soon
Answer:
B {-6, -3, 3, 11}
Step-by-step explanation:
suppose y varies directly as x, and y=48 when x=6. find x when y=72.
Using the constant of proportionality the value of x when y is 72 is 9.
What is a COP?
The ratio between two quantities that are directly proportional is the constant of proportionality. When two quantities grow and shrink at the same rate, they are directly proportional.
If y varies directly as x, it means that y can be expressed as a constant multiple of x, i.e., y = kx, where k is the constant of proportionality.
To find k, we can use the given information that y = 48 when x = 6 -
y = kx
48 = k(6)
k = 8
Now that we know k, we can use it to find x when y = 72 -
y = kx
72 = 8x
x = 9
Therefore, when x = 72, the value of x = 9.
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1/9 , Find the quotient in its simplest form .
Answer:
the simplest form of 1/9 is: 1/9
Step-by-step explanation:
1. A number that will divide evenly into both the numerator and denominator so it can be reduced. No such number exists for 1 and 9.
2. The numerator must be greater than the denominator, an improper fraction, so it can be converted to a mixed number. 1 is not greater than 9.
15. AB2+ BC2 = AC²
O A.
OB.
O C.
OD.
2 BDC = LADB
LBCA
DCB
2 BAC = LBAD
2 DBC = LBAC
multipl
Rese
Answer:
Step-by-step explanation:
The volume of this cone is 36π cubic units.
What is the volume of a cylinder with the same radius
and the same height?
Express your answer in terms of pi
Please help me due tomorrow
Answer:
108π cubic units======================
First let's recall the formulas for the volume of a cone and a cylinder.
Volume of a cone:
V_cone = (1/3)πr²hVolume of a cylinder:
V_cylinder = πr²hWe are given that the volume of the cone is 36π cubic units. Therefore:
36π = (1/3)πr²hNow, let's find the volume of a cylinder with the same radius and height. We will use the formula for the volume of a cylinder:
V_cylinder = πr²hSince we know that (1/3)πr²h = 36π, we can multiply both sides of this equation by 3 to find the value of πr²h:
3 * (1/3)πr²h = 3 * 36ππr²h = 108π
Therefore, the volume of a cylinder with the same radius and height as the given cone is 108π cubic units.
Therefore , the solution of the given problem of volume comes out to be cylinder's capacity is 108 cubic units
A three-dimensional object's volume, which is expressed in cubic units, indicates how much space it takes up. These symbols for cubic dimensions are liter and in3. However, you must be aware of an object's volume in order to calculate its dimensions. It is standard practice to translate an object's weight to mass units like grams and kilograms.
Here,
The capacity of a cone is calculated as follows:
=> V_cone = (1/3) * r² * h
where h is the cone's height and r is the cone's radius at its base.
The cone's capacity is specified as 36 cubic units. The formula is as follows:
=> 36π = (1/3) * π * r² * h
If we simplify, we get:
=> r² * h = 108
The following is the algorithm for a cylinder's volume:
=> V_cylinder = π*r²*h.
Since the cylinder and cone have the same radius and height, we can amend the calculation for the cylinder's volume by adding r² * h = 108:
=> V_cylinder = r² * h * 108 * r² * h = 108
The cylinder's capacity is 108 cubic units because it has the same height and radius as the cone.
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slove please and thanks
3x=y y=9 Solve for x.
Answer:
x=3
Step-by-step explanation:
3x=y y=9
fill y in with 9
3x=9
÷3 ÷3
x=3
Answer:
x = 3
Step-by-step explanation:
3x = y
y = 9
Put y as 9 into the first equation and solve for x.
3x = (9)
Divide both sides by 3.
x = 9/3
x = 3
Write the relation as a set of ordered pairs.
a. ordered pairs: {(-3, 3), (0, 0), (2, -2)}
b. ordered pairs: {(3, -3), (0, 0), (-2, 2)}
c. ordered pairs: {(3, -3), (0, 0), (2, -2)}
d. ordered pairs: {(-2, 2), (0, 0), (3,–3)}
Answer:
a. ordered pairs: {(-3, 3), (0, 0), (2, -2)}
Step-by-step explanation:
The manager of a grocery store in Decatur currently provides special service to people who still use checks to pay for food. They have a separate pay/bag line for people who insist on waiting for a dollar total to pull out their checkbook and start writing. On average, 30 customers per hour arrive at the checking pay/bag line and they can be modeled with a Poisson distribution. The clerk at this line can handle an average rate of 35 customers per hour and their service can be modeled with exponential distribution.
a. 67%.
b. 75%.
c. 33%.
d. 25%.
Utilization Average time a customer spends in the system
rho = λ/μ w = 1/μ - λ = L/λ
Average # of customers in the system Average time a customer spends in the queue
Ls = λ/μ - λ Wq = λ/μ(μ - λ) = Ls/λ
Average # of customers in queue Probability of n units in the syst
The correct option is: c. 33%. (The probability of having 36 customers in the system is approximately 0.00183%, which is approximately 0.033%, or 33%).
To find the utilization (ρ) of the clerk at the check/pay line, we can use the formula:
ρ = λ / μ
where:
ρ = Utilization
λ = Arrival rate (rate at which customers arrive at the line)
μ = Service rate (rate at which the clerk can handle customers)
Given in the problem:
Arrival rate (λ) = 30 customers per hour
Service rate (μ) = 35 customers per hour
Now, let's calculate the utilization (ρ):
ρ = 30 / 35 ≈ 0.8571
To convert this to a percentage, we multiply by 100:
ρ ≈ 0.8571 * 100 ≈ 85.71%
Since the utilization represents the percentage of time the clerk is busy, we need to find the percentage of time the clerk is idle (not busy). This can be calculated by subtracting the utilization from 100%:
Idle time = 100% - Utilization
Idle time ≈ 100% - 85.71% ≈ 14.29%
Now, let's find the average time a customer spends in the system (W) using Little's Law:
W = L / λ
where:
W = Average time a customer spends in the system
L = Average number of customers in the system (both in the queue and being served)
λ = Arrival rate (rate at which customers arrive at the line)
Given in the problem:
Arrival rate (λ) = 30 customers per hour
Now, we need to find the average number of customers in the system (L) to calculate the average time.
L = Ls + λ
where:
Ls = Average number of customers in the queue
Ls = λ / (μ - λ)
Given in the problem:
Service rate (μ) = 35 customers per hour
Ls = 30 / (35 - 30) = 30 / 5 = 6 customers
Now, calculate the average number of customers in the system (L):
L = Ls + λ
L = 6 + 30 = 36 customers
Now, calculate the average time a customer spends in the system (W):
W = L / λ
W = 36 / 30 = 1.2 hours per customer
Finally, let's find the probability of having n units in the system (both in the queue and being served). In this case, n would be the number of customers in the system (L):
Probability of having n units in the system = (ρ^n) * (1 - ρ)
Probability of having 36 units in the system (L):
Probability of L customers in the system = (0.8571^36) * (1 - 0.8571) ≈ 0.0000183
The question asks for the percentage, so we multiply by 100 to convert to percentage:
Probability ≈ 0.0000183 * 100 ≈ 0.00183%
Thus, the correct option is: c. 33%. (The probability of having 36 customers in the system is approximately 0.00183%, which is approximately 0.00183% * 18 ≈ 0.033%, or 33%).
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sin65° - sin25º = √2.sin20⁰
Answer:
To solve this trigonometric equation, we can use the following trigonometric identity:
sin(a - b) = sin(a)cos(b) - cos(a)sin(b)
Applying this identity, we get:
sin(65° - 25°) = sin(65°)cos(25°) - cos(65°)sin(25°)
simplifying this expression, we get:
sin(40°) = (sin(65°) / 2) - (sin(25°) * √3 / 2)
Now, we can use another trigonometric identity:
sin(2a) = 2sin(a)cos(a)
to simplify the expression on the right side of the equation. We have:
sin(65°) = 2sin(32.5°)cos(32.5°)
and
sin(25°) = 2sin(12.5°)cos(12.5°)
Substituting these into our original equation, we get:
sin(40°) = (sin(32.5°)cos(32.5°) - sin(12.5°)cos(12.5°)) * √2
Using the same trigonometric identity, we can simplify the expression on the right side of the equation:
sin(32.5°)cos(32.5°) - sin(12.5°)cos(12.5°) = 1/2(sin(65° - 25°) - sin(65° + 25°))
= 1/2(sin(40°) - sin(90°))
= 1/2(sin(40°) - 1)
Substituting this back into our original equation, we get:
sin(40°) = 1/2(sin(40°) - 1) * √2
Multiplying both sides by 2/√2, we get:
2sin(40°) / √2 = sin(40°) - 1
Adding 1 to both sides, we get:
sin(40°) + 1 = 2sin(40°) / √2
Simplifying the right side of the equation, we get:
2sin(40°) / √2 = sin(40°) * √2
Substituting this back into our equation, we get:
sin(40°) + 1 = sin(40°) * √2
Subtracting sin(40°) from both sides, we get:
1 = sin(40°) * (√2 - 1)
Dividing both sides by (√2 - 1), we get:
sin(40°) = 1 / (√2 - 1)
Multiplying the numerator and denominator by (√2 + 1), we get:
sin(40°) = (√2 + 1) / 1
Therefore, sin65° - sin25º = √2.sin20⁰ is not correct, and the correct value of sin(65°) - sin(25°) is (√2 + 1) / 2.
Step-by-step explanation:
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From LHS
Sin65 - Sin25
*Using SinC - SinD formula*
= 2Cos[(65+25)/2]×Sin[(65-25)/2]
=2cos90/2 × sin40/2
=2cos45sin20
=2 × (1/square root 2) sin20
=square root 2 × sin20
=RHS ( look photo to be more clear)
(a) In ordinary least squares estimation, less weight is given to observations with a lower error variance. (b) Whenever there is strong heteroskedasticity, it is preferable to use OLS rather than WLS, which may use a possibly misspecified variance function. (c) The variance of the slope estimator increases as the error variance de- creases. (d) The following simple model is used to determine the annual savings of an individual on the basis of his annual income and education. savings = a_0 + a_1edu + a_2inc + u The variable edu takes a value of 1 if the person is educated and the variable inc measures the income of the individual. We can conclude that the bench- mark group in this model is the group of uneducated people.
If heteroskedasticity is present, the Ordinary Regression Analysis approximations are not the best linearly unbiased estimators.
The definition of heteroscedasticity:Heteroskedastic describes a situation in which a regression model's residual term, or measurement error, variance fluctuates significantly. If this is the case, there may be a factor which can explain why it varies in a predictable manner.
Heteroskedasticity: What Is It?When the variances of a predictor are heteroskedastic (or heteroscedastic), it signifies that the variability of the errors is indeed not constant across data. Particularly, estimated coefficients may influence the variability of the mistakes. Non-constant measures are those that are tracked over a range of independent variable values or in relation to earlier time periods.
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What is the x-intercept in the linear equation -5x - 4y = 10
Answer:
x-intercept = (-2, 0)
Step-by-step explanation:
Given the linear equation, -5x - 4y = 10:
The x-coordinate of the x-intercept, (a, 0) is the point on the graph where it crosses the x-axis. It is also the value of x when y = 0.
To find the x-intercept, set y = 0:
-5x - 4y = 10
-5x - 4(0) = 10
-5x - 0 = 10
-5x = 10
Divide both sides by -5 to solve for x:
-5x/-5 = 10/-5
x = -2
Therefore, the x-intercept is (-2, 0).
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If 21% = 96 students how many students is 1%.
Or you can help with the whole question
Answer:
1% are 5 students
Step-by-step explanation:
21% is 96 then
1% is X
X = 1*96 / 21
X = 5
how many meters are in 11.75 millimeters
ANSWER
0.01175 metres
EXPLANATION
We want to find how many metres are in 11.75 millimetres.
There are 1000 millimeters in 1 meter:
We will simply divide 11.75 milimetres by 1000
1000 millimetres = 1 metre
\(11.75\text{ millimetres = }\frac{11.75}{1000}\text{ = 0.01175 metres}\)Solve.
log3 (2x + 5) = 3
Enter your answer in the box.
X = ?
Answer:
x = 11
Step-by-step explanation:
using the rule of logarithms
\(log_{b}\) x = n ⇒ x = \(b^{n}\)
given
\(log_{3}\) (2x + 5) = 3 , then
2x + 5 = 3³ = 27 ( subtract 5 from both sides )
2x = 22 ( divide both sides by 2 )
x = 11
Factor into linear factors: \(x^{2} +16\)
\(~~x^2+16\\ \\=x^2-(-16)\\\\=x^2-(4i)^2\\\\=(x+4i)(x-4i)\)
Answer:
(x + 4)(x + 4)Step-by-step explanation:
Given expression:
x² + 16Clearly, 16 is a perfect square as 4 x 4 is 16.
Thus, this expression can be written as:
⇒ x² + 16⇒ x² + 4²Using the formula "a² + b² = (a + b)(a + b)"
⇒ x² + 4² ⇒ (x + 4)(x + 4)LESSON 17 SESSION 3
4 Ms. Duda's class is hanging 500 red lanterns around the
school for Lunar New Year. Before lunch, the class hangs
100 of the lanterns.
PART A Draw a model to show what percent of 500 lanterns
the class hangs before lunch.
The model should visually represent that Ms. Duda's class hung 100 lanterns before lunch, which is 20% of the total 500 lanterns.
To draw a model showing what percent of 500 lanterns Ms. Duda's class hangs before lunch, we can use a rectangular bar model.
Draw a rectangular bar to represent the total number of lanterns, which is 500. Label it as "Total Lanterns."
Divide the rectangular bar into two parts. One part should represent the number of lanterns hung before lunch, which is 100. Label this section as "Lanterns Before Lunch."
Calculate the percentage of lanterns hung before lunch by dividing the number of lanterns hung before lunch by the total number of lanterns and multiplying by 100. In this case, (100/500) * 100 = 20%.
Draw an arrow pointing to the "Lanterns Before Lunch" section, and write "20%" next to it to represent the percentage.
The model should visually represent that Ms. Duda's class hung 100 lanterns before lunch, which is 20% of the total 500 lanterns.
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round 63,104,159,896 to the nearest hundred million
round 2,005,562,134 to the nearest hundred million
round 5,678,600,941 to the nearest hundred million
Answer:
The answer to each one is 1) 63,100,000,000
2) 2,000,000,000
3) 5,700,000,000
Raul recibió un bono de $750, el que era 5% de su salario anual . Su sueldo anual es de ?
Answer: 375
Step-by-step explanation:
volume ....................
Answer:
360 cm^2
Step-by-step explanation:
length x width x height
6 x 6 x 10
Answer:
360cm^3
Step-by-step explanation:
V=L*W*H
V=6*6*10
V=36*10
V=360
Jessalyn simplified the expression below. Find the TWO mistakes she made, and explain how she should have simplified the expression. 4(x+5) - 3x 4x+5-3x 6x
The First mistake she made is simplifying 4(x+5) - 3x to be 4x+5-3x.
The mistake here is that she did not expand the 4(x+5) correctly. She forgot to multiply 4 by 5 to correctly expand the bracket. The correct expansion of "4(x+5)" is "4x + 20" and not "4x + 5"
The second mistake is that she simplified 4x+5-3x to be equal to 6. This is wrong.
"4x+5-3x" gives "x + 5" and not 6.
The correct simplification of the problem is as follows:
4(x+5) - 3x = 4x + 20 -3x
Collect like terms
=4x - 3x + 20
=x + 20
The correct answer should be x + 20
Joey is flying his Cesna due Northwest at 188mph. Unfortunately, a wind traveling.
60mph due 150 bearing. Find Joey's actual Speed and direction.
Joey's actual speed is 143.59 mph, and his actual direction is slightly west of northwest.
Given that Joey's aircraft speed: 188 mph
Wind speed: 60 mph
Wind direction: 150 degrees (measured clockwise from due north)
We can consider the wind as a vector, which has both magnitude (speed) and direction.
The wind vector can be represented as follows:
Wind vector = 60 mph at 150 degrees
We convert the wind direction from degrees to a compass bearing.
Since 150 degrees is measured clockwise from due north, the compass bearing is 360 degrees - 150 degrees = 210 degrees.
Joey's aircraft speed vector = 188 mph at 0 degrees (due northwest)
Wind vector = 60 mph at 210 degrees
To find the resulting velocity vector, we add these two vectors together. This can be done using vector addition.
Converting the wind vector into its x and y components:
Wind vector (x component) = 60 mph × cos(210 degrees)
= -48.98 mph (negative because it opposes the aircraft's motion)
Wind vector (y component) = 60 mph×sin(210 degrees)
= -31.18 mph (negative because it opposes the aircraft's motion)
Now, we can add the x and y components of the two vectors to find the resulting velocity vector:
Resulting velocity (x component) = 188 mph + (-48.98 mph) = 139.02 mph
Resulting velocity (y component) = 0 mph + (-31.18 mph) = -31.18 mph
Magnitude (speed) = √((139.02 mph)² + (-31.18 mph)²)
= 143.59 mph
Direction = arctan((-31.18 mph) / 139.02 mph)
= -12.80 degrees
The magnitude of the resulting velocity vector represents Joey's actual speed, which is approximately 143.59 mph.
The direction is given as -12.80 degrees, which indicates the deviation from the original northwest direction.
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Which equation is not equivalent
Answer:
C
Step-by-step explanation:
(2x+3)(x+4) = 2x² + 8x + 3x + 12
= 2x² + 11x + 12 ≠ 2x² + 10x + 12
Does side lengths 4, 8 and 12 form a right triangle?
Answer:
No it does not form a triangle.
Step-by-step explanation:
If the lengths satisfy the Pythagorean Theorem (a2+b2=c2) then it is a right triangle.
The integers set included in the interval -45 x <3 is {-4,-3,-2,-1,0,1,2,3}.
True or False
Answer:
False
Step-by-step explanation:
-45x < 3
-x < 3/45
-x < 1/15 Multiply by -1 because x is negative and remember to
change all parts to its opposite.
Therefore x > -1/15