For given function h(x), Value of h(7) will be 59.
What is a function?A function is described as a relationship between a set of inputs with one output each. A function is, to put it simply, a relationship between inputs in which each input is connected to exactly one output. Every function has a domain and a co-domain, or range.
In mathematics, various function types exist. Important types include the following:
When there is a mapping for a range for each domain between two sets, this is known as an injective function or one-to-one function.
Surjective functions or Onto functions: When more than one element is mapped from domain to range.
A polynomial function is a function made up of polynomials.
Functions that can invert other functions are known as inverse functions.
Now,
Given that f(x) = -4x,
g(x)= x − 5 and
h(x) = −3ƒ(x − 2) + g(x − 3),
So, the function h(x) will be
h(x)=-3*(-4*(x-2))+x-3-5
h(x)=-3*-4x-3*8+x-8
h(x)=12x+x-32
h(x)=13x-32
h(7)=13*7-32
=91-32
h(7)=59
Hence,
Value of h(7) will be 59.
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tv screens are measured on the diagonal. if we have a tv-cabinet that is 66 inches long and 54 inches high, how large a tv could we put in the space (leave 2-inches on all sides for the edging of the tv)? round your answer to the nearest tenth.
Using Pythagoras' theorem, we can conclude that we can put a 79.65 inches TV in the TV cabinet.
We have been given that a TV -cabinet is 64 inches long and 52 inches high.
After leaving 2 inches on all sides, our new dimensions would be:
Length = 66 - 2 - 2 = 66 - 4 = 62 inches
Height = 54 - 2 - 2 = 54 - 4 = 50 inches
Using Pythagoras' theorem, we can find the diagonal of the television
Diagonal² = 62² + 50²
Diagonal² = 3844 + 2500
Diagonal² = 6344
Take square root of both sides:
Diagonal = √6344
Diagonal = 79.65 inches
Hence, we can put a 79.65 inches TV
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Paul wins 1500metres in 4,67metres .(c) write down his average in metres per minutes correct to: (I) The nearest Whole number ( ii ) One decimal place ( iii ) Two decimal places ( iv ) Three significant figures
Answer:
(I) The nearest whole number is 317.5 meters per minute.
(ii) One decimal place is 317.5 meters per minute.
(iii) Two decimal places is 317.47 meters per minute.
(iv) Three significant figures is 317 meters per minute.
Note: To find the average velocity, divide the distance traveled by the time it took to travel that distance. 1500 meters / 4.67 minutes = 322.2 m/min. But since you want the answer rounded to different degrees, you can round the answer accordingly.
Three boys shared D 10,500.00 in the ratio 6:7: 8. Find the largest share.
Answer:
Step-by-step explanation:
let the common ratio be x.
boy 1 share= 6x
boy 2 share= 7x
boy 3 share= 8x
-------------------------------
21x= 10500.00
=> x= 10500/21
x= 500
6 x 500= $3000
7x 500= $3500
8 x 500= $28000
therefore, boy 3 has the largest share of $28000.
alice is holding up the top vertex of a triangular banner attached to the ground by two anchors on the bottom vertices. what is the area of the banner of alice reaches her arm up above the ground and the anchors on the bottom are apart?
Let's call the length of the bottom side of the triangular banner "b". When Alice reaches her arm up above the ground, the height of the banner changes from its original height of "h" to a new height of "h'". The area of the banner can be calculated using the formula:
A = (b * h') / 2
The new height "h'", can be calculated using the Pythagorean theorem, which states that in a right triangle, the sum of the squares of the two shorter sides is equal to the square of the longest side (the hypotenuse).
In this case, the two shorter sides are the original height "h" and the difference between the length of Alice's arm and the original height, which we will call "d". The longest side is the distance between the two anchors, which we will call "a".
So:
h^2 + d^2 = a^2
We can solve for "d" using this equation:
d = sqrt(a^2 - h^2)
And then we can find "h'" using:
h' = h + d
So the area of the banner can be calculated as:
A = (b * (h + sqrt(a^2 - h^2))) / 2
The solution assumes that the banner is a right triangle, with one vertex at the top, one vertex at the bottom, and a straight side along the ground connecting the two bottom vertices.
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Can I please get help with this?
Answer:
Step-by-step explanation:
its number 3
Alice watched two films at the cinema. The first film was 1; hours long and the second was 2} hours long. a Work out the total length of the two films. Alice drove to the cinema. She arrived 10 minutes before the first film began and had to wait for half an hour between the two films. She left immediately after the second film finished. Car park tickets can be bought in multiples of 1 hour. b How many hours of parking did Alice need to buy?
Answer:
4
Step-by-step explanation:
1h
2hrs
10 mins before
wait 30mins
total: 3h 40mins
so has to buy 4hrs
Answer:
she has to pay for 3 hours and 40 minutes worth of parking so 4 or 3 if its rounded or not
Step-by-step explanation:
The members of a population have been numbered 1-341.
A sample of size 5 is to be taken from the population, using systematic random sampling. Complete the below using the table.
Random Number Table- 03184 61921 87377
97729 79151 33433
Procedure for Systematic Random Sampling
First, divide the population size by the sample size and round the result down to the nearest whole number, m.
Then, use a random-number table or a similar device to obtain a number, k, between 1 and m.
Finally, select for the sample those members of the population that are numbered k, kplus+m, kplus+2m,
Apply the procedure to determine the sample (that is, the numbers corresponding to the members of the population that are included in the sample), using the provided random-number table. To use the random-number table, Start at the two-digit number at the top left, read down the column, up the next, and so on.
The value of k for this sample is?
(Type a whole number.)
The sample is ?
(Type whole numbers. Use a comma to separate answers asneeded.)
b. Suppose that the random sample chosen from the random number table is 22 number chosen from the random number table is 22 (that is k=22) Determine the sample.
The sample is-
The sample is 3, 71, 139, 207, and 275.
The procedure for systematic random sampling involves first dividing the population size by the sample size and rounding the result down to the nearest whole number, m. This value of m is known as the sampling interval. For the given population size of 341 and sample size of 5, the value of m is 68.
Next, a random number, k, between 1 and m is chosen. The given random-number table contains the values 03184, 61921, 87377, 97729, and 79151. Reading the two-digit number at the top left, we get 03, which is equal to 3. Therefore, k = 3.
Finally, the sample is taken from the population in intervals of m. In this case, the sample consists of members of the population numbered 3, 71, 139, 207, and 275. Therefore, the sample is 3, 71, 139, 207, and 275.
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3) Determine the slope of the line that contains the given points!
(-6,10) and (-12,-10). (1 pt)
A) 0
B)10/3
C)undefined
D)-10/3
Answer:
B
Step-by-step explanation:
Δy = -10-10= -20
Δx = -12-(-6) = -6
-20/-6= 10/3
In this figure, a || b || c and m/5 = 155°
What is m/3 ?
25°
65°
155°
I don't know.
25 Degres it is a obtuse angle using the dewy decimal system
Answer:
The person above me is correct
25
Step-by-step explanation:
While playing his favorite video game, Damien sees that his character has leveled up to 70% of the maximum ranking. If he played for 56 hours to get to 70%, how many total hours will he need to play to achieve 100% rank
Answer:
Step-by-step explanation:
If Damien can get to 70% maximum ranking in 56 hours, then we can make this equation:
0.7x(representing 70%)=56 (Amount of time Damien has played)
0.7x=56
Divide 0.7 on both sides we get:
x=80
Damien will have to play 80 hours to get to 100% Rank.
the manager of a supermarket tracked the amount of time needed for customers to be served by the cashier. after checking with his statistics professor, he concluded that the checkout times are exponentially distributed with a mean of 5 minutes. what propotion of customers require more than 10 minutes to check out? proportion
Approximately 86.5% of customers will be served in less than 10 minutes and only 13.5% of customers will take more than 10 minutes to check out.
Exponential Checkout Time ProportionTo find the proportion of customers who take more than 10 minutes to check out, we need to calculate the cumulative distribution function (CDF) of an exponential distribution at 10 minutes and subtract it from 1. The CDF for an exponential distribution with mean (lambda) 5 minutes is given by:
CDF = 1 - e^(- λ * x)
Plugging in λ = 0.2 (1/mean) and x = 10, we get:
CDF = 1 - e^(-0.2 * 10) = 1 - e^(-2) = 1 - 0.135 = 0.865
So, approximately 86.5% of customers will be served in less than 10 minutes and only 13.5% of customers will take more than 10 minutes to check out.
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At the end of any year a car is worth 5% less than what is was worth at the beginning of the year. if a car was brought for 10 000 in January 2009, its value in December 2009 was
Answer:If at the end of any year a car is worth 5% less than what it was worth at the beginning of the year, we can say that the car's value decreases by a factor of 0.95 (1 - 0.05) every year.
To find the car's value in December 2009, we can use the formula:
Car value at end of year = Car value at beginning of year * (1 - 0.05)^(number of years)
Plugging in the given values, we get:
Car value in December 2009 = 10,000 * (1 - 0.05)^1 = 9,500
So the car's value in December 2009 is 9,500 dollars.
Step-by-step explanation:
Answer:
9500
Step-by-step explanation:
If you didn't understand that one (which I personally found a little complicated) the answer can be found like this.
1. You firstly find the decrease which is 5/100 × 10000 (5/100 can also be written as 5%) and the answer will be 500
2. Then you take the original value and you minus the loss in worth of the car —> 10000-500 = 9500
what 26789 divide 43
What is the weight in lbs of a 75-kg person?
Hence, we can say that the weight of a person of 75 Kg in lbs will be equal to 165.3465lbs.
Define weight?The weight of an object is the force acting on it due to gravity in science and engineering.Weight is defined as a vector quantity in some standard textbooks, as the gravitational force acting on the object.Others define weight as a scalar quantity, the magnitude of gravity.We know that the conversion factor for lbs to kg is
1 kg = 2.20462lbs
Now, to convert 75 Kg into lbs, we need to multiply the 75 with the conversion factor. That is,
75kg = 75×2.20462lbs = 165.3465lbs
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Name a pair of adjacent angles in this figure. N
Answer:
Step-by-step explanation:
angleNOP AND anglePOQ
anglePOQ AND angleQOR
A parabola can be drawn given a focus of (-7, 9) and a directrix of y = 11. Write
the equation of the parabola in any form.
The equation of the parabola with focus at (-7,9) and directrix at y = 11 is given as follows:
(x + 7)² = -4(y - 10)
How to obtain the equation of the parabola?The equation of a vertical parabola is given as follows:
(x - h)² = 4p(y - k)
In which:
(h,k) are the coordinates of the vertex.y = k - p are the coordinates of the directrix.(h, k + p) are the coordinates of the focus.A parabola can be drawn given a focus of (-7, 9), hence:
h = -7.k + p = 9.Directrix of y = 11, hence:
k - p = 11.
Adding the equations of the y-coordinate of the focus and of the directrix, the value of k is obtained as follows:
2k = 20
k = 20/2
k = 10.
Hence the value of p is of:
p = k - 11
p = -1.
Meaning that the equation is:
(x + 7)² = -4(y - 10)
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A car moving at a constant speed passed a timing device at t=0. After 6 seconds, the car has traveled 684 ft. Write a linear function rule to model the distance in feet d the car has traveled any number of seconds t after passing the timing device.
The linear function rule is d = ?
Answer:
Step-by-step explanation:
219y+608=−121156 219y+608=−121156 219y+608=−121156 v 219y+608=−121156v219y+608=−121156vvv219y+608=−121156= 365
Answer:
d = 114t
Step-by-step explanation:
distance = rate * time
therefore, rate = distance/time
684 ft in 6 sec = 114 ft per sec (this is the 'rate')
so the distance can be calculated by multiplying time in seconds to get distance in feet
d = 114t
The differential equation xydx + (x^2 + y^2)dy = 0 is Select the correct answer.
a. exact with solution x^2y/2 + y^3/3 =c b. exact wiih solution x^2y/2 + y^2/2 = c c. exact with solution x^2y/2 + y^3/3+c d. not d: not exact but having an integrating factor x c e. not exact but having an integrating factor y
The correct answer is option is option d) not exact but having an integrating factor x c e.
Integrating factor is defined as the function which is selected in order to solve the given differential equation. It is most commonly used in ordinary linear differential equations of the first order. When the given differential equation is of the form; dy/dx + P(x) y = Q(x)
We have, (x2+y2)dy= -xydx
⇒dxdy= -(x2+y2xy)
Substitute y=vx
⇒ - dxdy=v+xdxdv
⇒v+xdxdv= -(1+v2v)
⇒ xdxdv= -(1+v2v−v)
= -(−1+v2v3)
⇒v31+v2dv =xdx
Integrating both sides we get, −2v21+logv= logx-logc, where c is constant
⇒−2v21+log(cvx)=0
⇒y=cex2/2y2
Now using y(1)=1⇒c=e−1/2
Also y(x0)=e
⇒e=e−1/2+x02/2e2⇒1=−1/2+x02/2e2
⇒x02=3e2
⇒x0=[tex]\sqrt{3}[/tex]e
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Es.
3
e
5. Andrew says that 60 is the greatest whole
number that rounds to 60. Is Andrew
correct? Explain your reasoning
Andrew is correct because 60 is the highest whole number that can round to 60. Any number higher than 60 will round up to a higher number. For example, 61 will round up to 70, and 62 will round up to 70. Therefore, 60 is the greatest whole number that rounds to 60.
The highest whole number is infinity, as there is no limit to how high a number can be. Whole numbers are all the numbers that are greater than or equal to 0, including 0 itself. The highest whole number is therefore infinity, as this is the highest possible number.
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A 75 kg box is being pulled across the floor with a force of 465 N. If the kinetic coefficient of friction is 0.57, what is the acceleration of the box?
The acceleration of an object is interpreted as the rate of change at which its speed varies with time. When the motion is vertical, the object has an acceleration when its speed varies, while when the speed is constant, the acceleration is equal to zero. The acceleration of the box is 0.614 m/s.
What is acceleration?In mechanics, acceleration is defined as the rate of change of an object's velocity with respect to time. Vector quantities are accelerations. The orientation of an object's acceleration is determined by the orientation of its net force.Deceleration occurs when acceleration is directed in the opposite direction as the velocity of an object.Deceleration is always defined in physics as the slowing down of an object, which means that the magnitude of the velocity decreases.The rate of change of displacement is defined as velocity. The rate of change of velocity is defined as acceleration. Because it includes both magnitude and direction, velocity is a vector quantity. Because it is simply the rate of change of velocity, acceleration is also a vector quantity.To learn more about acceleration refer to:
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Kendra watches the moon change from a new moon to a full moon. Which of the following descriptions is accurate? (Select all that apply.)
Responses
The moon is waxing.
The moon is waxing.
The moon is waning.
The moon is waning., ,
The moon appears to get smaller.
The moon appears to get smaller.
The moon appears to get bigger.
The moon appears to get bigger.
The moon does not change.
The correct description is that moon is waxing.
Which of the following descriptions is accurate?The theory used in this question is the lunar cycle, which is the process by which the moon changes its shape and illumination over the course of a month.
The waxing phase of the lunar cycle is when the moon is gradually getting bigger and more illuminated.
The waning phase is when the moon is gradually getting smaller and less illuminated.
The moon is waxing:
This is an accurate description because when the moon changes from a new moon to a full moon, it is said to be waxing.
This means that the moon is gradually getting bigger, and its illuminated side is increasing.
This process is called the waxing phase of the moon's cycle.
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solve the simultaneous equation. y=5-x ,x^2-2y^2-1=0
In the given simultaneous linear equation, the value for x is 3 and the value for y is 2.
Explain simultaneous linear equation.A system of simultaneous linear equations is any set of two or more linear equations that share the same variables involved. Obtaining values for the unknown variables that simultaneously satisfy all of the equations is required to solve such a system.
In the given question,
x + y = 5.......(i)
x2 - 2y2 = 1.......(ii)
x = 5 - y.........(iii)
Substituting x in equation(ii) = (5 - y)2 - 2y2 = 1
25- 10y + y2 - 2y2 = 1
25 - 1 = y2 + 10y
y2 + 10y2 - 24 = 0
(y + 12)(y - 2) = 0
Then Either y + 12 = 0 or y - 2 = 0
= (-12, 2)
Thus, y = 2
Now, substituting the value of y in equation (i),
x + y = 5
x + 2 = 5
x = 5 - 2
x = 3
Therefore x = 3 and y = 2.
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A hospital operating room needs to schedule three knee surgeries and two hip surgeries in a day. Suppose that an operating room needs to schedule three knee, four hip, and five shoulder surgeries. Assume that all schedules are equally likely. Determine the probability for each of the following: (a) All hip surgeries are completed before another type of surgery (b) The schedule begins with a hip surgery (c) The first and last surgeries are hip surgeries. (d) The first two surgeries are hip surgeries.
To calculate the probability a) P = (4C4 x 3C3)/(12C12) = 1/12. (b) P = (4C1 x 3C3 x 5C5)/(12C12) = 1/12. (c) P= (4C1 x 3C3 x 4C3 x 5C4)/(12C12) = 1/9. (d) P= (4C2 x 3C3 x 5C5)/(12C12) = 1/36.
(a) To calculate the probability that all hip surgeries are completed before another type of surgery, we first determine the total number of possible combinations of surgeries (12C12). We then calculate the number of combinations with four hip surgeries and three knee surgeries (4C4 x 3C3). We divide the number of combinations with the desired schedule by the total number of combinations to get the probability (1/12). (b) To calculate the probability that the schedule begins with a hip surgery, we first determine the total number of possible combinations of surgeries (12C12). We then calculate the number of combinations with one hip surgery, three knee surgeries, and five shoulder surgeries (4C1 x 3C3 x 5C5). We divide the number of combinations with the desired schedule by the total number of combinations to get the probability (1/12). (c) To calculate the probability that the first and last surgeries are hip surgeries, we first determine the total number of possible combinations of surgeries (12C12). We then calculate the number of combinations with one hip surgery at the start, three knee surgeries, three hip surgeries, and four shoulder surgeries (4C1 x 3C3 x 4C3 x 5C4). We divide the number of combinations with the desired schedule by the total number of combinations to get the probability (1/9). (d) To calculate the probability that the first two surgeries are hip surgeries, we first determine the total number of possible combinations of surgeries (12C12). We then calculate the number of combinations with two hip surgeries, three knee surgeries, and five shoulder surgeries (4C2 x 3C3 x 5C5). We divide the number of combinations with the desired schedule by the total number of combinations to get the probability (1/36).
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Simplify the expression please. See image for problem
Answer:
answer is 1
Step-by-step explanation:
12-y/6y-36
and other you can see by photo
Write equations for the vertical and horizontal lines passing through the point (8, 0)
Four research teams each used a different method to collect data on how fast a new iron skillet rusts. Assume that they all agree on the sample size and the sample mean (in days). Use the (confidence level; confidence interval) pairs below to select the team that has the smallest sample standard deviation
The smallest sample standard deviation
Confidence Level: 95%; Confidence Interval: 42 to 48.
How to interpret the confidence interval?Assume that x ± y represents the confidence interval at P% for the values of some parameter.
In other words, the parameter's projected value is P% likely to fall within the range.
[x - y, x + y]
Data on how quickly a brand-new iron skillet rusts were gathered by four research teams using various techniques.
Assume that everyone is in agreement with the sample size and sample mean (in days).
Choose the team with the smallest sample standard deviation using the (confidence level; confidence interval) pairs below.
Then we have
= 48 - 42 = 6
Then we have
= 6/2
=3, which is smallest
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The question you have uploaded is seems to be incomplete, the complete question is
A. Confidence Level: 99.7%; Confidence Interval: 40 to 40
B. Confidence Level: 95%; Confidence Interval: 40 to 50
C. Confidence Level: 68%; Confidence Interval: 43 to 47
D. Confidence Level: 95%; Confidence Interval: 42 to 48
what is the anwser= $200
Figure A
Save
Store
Leff's
Store
Low
Pricer
= $200
Figure B
Save
Store
Leff's
Store
Low
Pricer
In Figure A, how much did Save Store sell?
Save store sold 100/3.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
In figure A there are 12 stores
Now each store sells 200/12
If save store is 2
Save store sells =200/12×2
=100/3
Hence, save store sold 100/3.
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What is 32(4x+6) in simplified form
[tex]\huge\text{Hey there!}[/tex]
[tex]\huge\textbf{ASSUMING:}[/tex]
[tex]\mathsf{\dfrac{3}{2}(4x + 6)}[/tex]
[tex]\huge\textbf{If so, distribute \boxed{\rm{\bf \dfrac{3}{2}}} within the}\\\\\huge\textbf{parentheses}[/tex]
[tex]\mathsf{\dfrac{3}{2}(4x + 6)}[/tex]
[tex]\mathsf{= \dfrac{3}{2}(4x) + \dfrac{3}{2}(6)}[/tex]
[tex]\mathsf{= \dfrac{3}{2}\times \dfrac{4}{1}x + \dfrac{3}{2} \times \dfrac{6}{1}}[/tex]
[tex]\mathsf{= \dfrac{3\times4}{2\times1}x +\dfrac{3\times6}{2\times1}}[/tex]
[tex]\mathsf{= \dfrac{12}{2}x +\dfrac{18}{2}}[/tex]
[tex]\mathsf{= 6x + 9}[/tex]
[tex]\huge\textbf{Therefore your answer should be:}[/tex]
[tex]\huge\boxed{\mathsf{6x + 9}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
What is the rule for an exponential graph?
One significant mathematical function that has the form is the exponential function, f(x) = [tex]$$a^x[/tex].
What is meant by exponential graph?If f(x) = [tex]$$a^x[/tex], where x is the input variable and is expressed as an exponent, is the formula for an exponential function. In addition to being dependent on the exponential function, the exponential curve also depends on the value of x. One significant mathematical function that has the form is the exponential function. f(x) = [tex]$$a^x[/tex].
The four fundamental characteristics of exponential functions are their y-intercept, horizontal asymptote, domain (the range of x values at which the function occurs), and constant growth factor, b.
Calculating the exponential growth or decay of a set of given data is done using an exponential function. According to the power to the power rule, "If the base increased to a power is being raised to another power, then the two powers are multiplied and the base remains the same."
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or the students in kendra's grade voted to select a guest speaker. 20% of the students voted for a famous athlete. if there are 85 students in kendra's grade, how many students voted for the athlete?
There will be 17 students voted for the famous athlete.
Athlete Speaker Vote CountYou can calculate this by multiplying the number of students in the grade (85) by the percentage who voted for the athlete (20% or 0.20).
85 x 0.20 = 17
The method used here is called "Percentage calculation." The method of percentage calculation is generally applicable to many situations where you want to find the proportion of a number relative to another number. It can be used to solve problems in various fields such as mathematics, finance, statistics, and more.
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