Perform the indicated operation.

g(a) = -4a +5
f(a)=3a-5
Find (gf)(a)

A) 2a³-a²-10a +5
B) -a³ + 4a
C) -12a²-35a-25
D) -12a²+35a-25

If the incomes in a certain larger population of college teachers have a normal distribution with mean of $60,000 and standard deviation of $5,000.the probability that their average salary exceeds $65,000 is 0.0228.

Probability is the tendency or likelihood that an event will happen.

First step is to find the standard deviation

Standard deviation= $5,000/√4

Standard deviation= $5,000/2

Standard deviation= $2,500

Second step is to find the z -score

Z= 65,000 - 60,000/2500

Z= 5,000/2500

Z= 2

Now let find the  pvalue of 2

pvalue of 2 = 0.0228

Therefore the probability is 0.0228.

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9/8 is the result when we divide 3/4 by 2/3

Step 1. Take reciprocal of  the second fraction (the one you want to divide by)

Step 2. Multiply the first fraction by the second faction's reciprocal.

Step 3. Convert the result in the lowest form.

When the numerator and the denominator of the fraction do not have any common factors, the fraction is said to be in its simplest form. For instance, 12 is the most basic version of 6/12.

so the result = (3/4) / (2/3)

=> (3/4) * (3/2)

=> (3*3)/(4*2)

=>9/8

so the result obtanied after the above division is 9/8.

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The area enclosed in the figure of the graph of r² = sin(2θ) is

1 square units.

A polar equation of a curve is usually expressed in polar coordinates and written with {r} as a function of {θ}.

Given is a polar equation as follows -

r² = sin(2θ)

Area enclosed in the figure is equivalent to -

{A} = 2{∫1/2r²dθ}

{A} = ∫r²dθ

{A} = ∫sin(2θ) dθ

{A} = {- cos(2θ)/2}     (integral limit -> 0 to π/2)

{A} = {- cos(π)/2 + cos(0)/2}

{A} = 1/2 + 1/2

{A} = 1

Therefore, the area enclosed in the figure of the graph of r² = sin(2θ) is

1 square units.

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A unit rate is a rate with a denominator of one.

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The total length of ribbon that Leah bought is equal to 358.4 inches.

In Mathematics, measurement can be defined as an act or process through which the size, weight, magnitude, quantity, volume (capacity), dimensions (length and width), or distance traveled by a physical object or body is taken, especially for the purpose of an experiment.

In order to determine the total length of ribbon that was purchased by Leah, we would have to multiply the length of the strips of ribbon by the length of each of the strips as follows;

Total length of ribbon = Length of the strips of ribbon × Length of each of the strips

Substituting the given parameters into the formula, we have;

Total length of ribbon = 32 × 11.2 inches

Total length of ribbon = 358.4 inches.

In this context, we can reasonably infer and logically deduce that total length of ribbon that was purchased by Leah is equal to 358.4 inches.

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The number of gallons of water the city's residents waste last year are 7388.181 by percentage concept.

A quantity or ratio that is expressed as a fraction of 100 is known as a "a%" in mathematics (from the Latin per centum, "by a hundred"). A% is a dimensionless (pure) number without any measuring units. The Latin word "percentum," which means "hundred" or "by the hundred," is the source of the English term "percent." Over time, the Italian term per cento, which originally meant "for a hundred," shrank to become the symbol for "percent." Per was frequently abbreviated to "p" and finally disappeared altogether.

No. of gallons of water wasted by Hillsdale are 8127 gallons.

110%  -----> 8127

100%  ----->?

x=(100×8127)/110

x= 7388.181

Therefore, the number of gallons of water the city's residents waste last year are 7388.181.

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As per the unitary method, the linear equation represents the number of minutes Denzel still has to practice is N(x) = 210 - 30x

The term unitary method refers a process of finding the value of a single unit, and based on this value.

Here we have given that Denzel must practice the piano for 210 min each week. he practices for 30 min each day

And we need to find linear equation represent the number of minutes Denzel still has to practice after x days

As from the given question we know that Denzel must practice piano for 210 minutes each week.

Therefore, the total practice needed = 210 minutes

And the total minutes practicing per day = 30 minutes

Here let us consider x be the number of days practiced

Then the total minutes practices after n days = 30x

So, the total remaining minutes is calculated as,

=> 210 - 30x

Therefore, the number of minutes Denzel still has to practice after x days is written as, N(x) = 210 - 30x

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The probability that Sid takes one counter of each color is 0.5.

To find the probability that Sid takes one counter of each color, we need to know the total number of possible outcomes when Sid takes two counters from the bag. Since the order in which Sid takes the counters does not matter, there are two cases to consider:

Sid takes a green counter first and a blue counter second. There are 8 green counters and 3 blue counters, so there are a total of 8 * 3 = <<8*3=24>>24 outcomes in this case.

Sid takes a blue counter first and a green counter second. There are 3 blue counters and 8 green counters, so there are a total of 3 * 8 = <<3*8=24>>24 outcomes in this case.

In total, there are 24 + 24 = <<24+24=48>>48 outcomes when Sid takes two counters from the bag.

To find the probability that Sid takes one counter of each color, we divide the number of successful outcomes (24 in each case) by the total number of outcomes (48). This gives us a probability of 24/48 = 1/2 = 0.5.

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The equations y = 0 and y = -6 have no solution.

Given equation,

y = 0

y = -6

We will plot these lines on the graph.

According to the graph, the x-axis is represented by the equation y = 0, and a line parallel to the x-axis is represented by the equation y = 6. Thus, it is clear that both lines are parallel, and even if we extended either line in either direction, there was no chance that the two lines would ever collide. However, we are aware that the intersection of the two lines is where the solution of the pair of lines is defined.

Hence, No solution to the lines can be found here.

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Given that value of y exceeds a, then value of a must be smaller than -8.2.

The provided equation is-

(13-20- A* 13y)= 168* 13-22

We get,

By 260, divide both sides.

Y has a value of -8.265.

Thus, provided that y exceeds a, then value of a must be smaller than -8.2

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The correct question is-

What is the value of (a,y) in (13-20- A* 13y)= 168* 13-22?

The coefficient of x in the expression 5x³ 7x² is 5. This means that for every x in the expression, 5 will be multiplied by it. This means that in the expression 5x³ 7x², 5 will be multiplied by x three times and seven will be multiplied by x twice.

The coefficient of x in the expression 5x³ 7x² is 5. This means that for every x in the expression, 5 will be multiplied by it. To calculate the coefficient of x, we need to first expand the expression. The expanded form of the expression 5x³ 7x² is 5x³ + 7x². Here, we can see that 5 is multiplied by x three times and seven is multiplied by x twice. This indicates that the coefficient of x is 5. This can be understood by considering the following example:

Let's say we have the expression 5x³ 7x² = 5x³ + 7x².

Here, 5 is multiplied by x three times and seven is multiplied by x twice. This means that the coefficient of x is 5. This can be written as 5x³ + 7x² = 5x³ + 7x x 1 = 5x(x² + x). Hence, the coefficient of x in the expression 5x³ 7x² is 5.The coefficient of x in the expression 5x³ 7x² can be calculated using the following steps:

Expand the expression 5x³ 7x².

The expanded form of the expression is 5x³ + 7x².

Here, we can see that 5 is multiplied by x three times and seven is multiplied by x twice. This indicates that the coefficient of x is 5.

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The activities you desire to do with your money during the next several months or years are considered short-term financial objectives.

When you earn interest on your interest earnings as well as the money you have saved, this is known as compound interest. The interest you get is referred to as compound interest. Using simple math, you can see how this works: if you have $100 and it generates 5% interest annually, you will have $105 at the end of the first year. You'll have $110.25 at the conclusion of the second year.

The activities you desire to do with your money during the next several months or years are considered short-term financial objectives as compound interest. Setting a budget, creating an emergency fund, and paying off debt are some important short-term objectives.

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A equation of the tangent line to the curve is y = 3x + 3

The term tangent line in math is calculated as an equation of the tangent line we have to find the derivative of the function and its value at the given point.

And then we have to the function given is a product of an exponential and cosine function. We will have to use product rule.

Finally, we have to write the equation of tangent line by point slope form.

Here we have the curve equation as,

=> y = 3eˣcos(x)

Now, we have to calculate the derivative y' from the given equation, then we get,

=> y' = = 3(eˣ (−sin x) + (cos x) eˣ)

Now, it can be simplified as,

=>y' = 3eˣ(cos x − sin x)

Here we have given that the the slope of the tangent line at (0, 3), then the value of

=> 3e⁰(cos0−sin0) = 3(1−0) = 3

Then the equation is written as

=> y − 3 = 3(x − 0)

=> y = 3x + 3

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Answer:

Fair dice mean that each of the faces has the same probability of landing facing up. A standard 6-sided die, for example, can be considered “fair” when each of the faces has the same probability of ⅙.

Step-by-step explanation:

Answer:

Squares have to have the same shape and size to be congruent. Therefore, not all squares are congruent, since not all of them are the same size. … This means that they have the same shape, although not necessarily the same size.

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Step-by-step explanation:

Answer:

Last one

Step-by-step explanation:

The acceleration of the box is 4m/s².

Acceleration is a vector quantity as it has both magnitude and direction. It is also the second derivative of position with respect to time or it is the first derivative of velocity with respect to time. The change in the velocity of an object could be an increase or decrease in speed or a change in the direction of motion.

We know the frictional force f=μN where N=normal force = mg

Given that,

Frictional force μ = 250N

Hence F(net)= F(app)- f = 450 - 250 = 200 N

We know Force(F)=ma

a=200/50 = 4m/s²

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We know the frictional force f=μN where N=normal force = mg

Given that,

Frictional force μ = 250N

Hence F(net)= F(app)- f = 450 - 250 = 200 N

We know Force(F)=ma

a=200/50 = 4m/s²

The given equation represents a straight line equation with slope [m] = 2 and [y] - intercept as 8.

Given is the linear equation as follows -

y = 2x + 8

The given equation is as follows -

y = 2x + 8

The given equation is a straight line with a slope of [m] = 2. The [y] - intercept is equivalent to 8. This means that the graph cuts the [y] axis at the point (0, 8).

Therefore, the given equation represents a straight line equation with slope [m] = 2 and [y] - intercept as 8.

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To graph a function with two variables, you need to plot the points that satisfy the function in a coordinate system.

For example, suppose you have a function f(x,y) = x^2 + y^2. To graph this function, you can choose a set of values for x and y that satisfy the function, and plot these points in the coordinate system.

For example, if you choose x = 1 and y = 2, then the point (1,2) satisfies the function because f(1,2) = 1^2 + 2^2 = 1 + 4 = 5. Similarly, if you choose x = -2 and y = 3, then the point (-2,3) satisfies the function because f(-2,3) = (-2)^2 + 3^2 = 4 + 9 = 13.

You can repeat this process for a range of values for x and y to plot more points in the coordinate system. As you plot more points, you will start to see a pattern emerge, which is the graph of the function.

Note that the graph of a function with two independent variables will be a surface in three-dimensional space, rather than a curve in two-dimensional space like the graph of a function with only one variable.

--The question is incomplete, answering to the question below--

"How do you graph a function with two variables?"

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Answer:

----------------------------------

Given:

Perimeter is:

or

The perimeter is at most 96 cm (not greater than):

The matching choice is A.

Four types of discontinuity of a function are as follow:

Jump discontinuity , infinite discontinuity, endpoint discontinuity, and Mixed discontinuity.

As given in the question,

Four types of discontinuity are given by :

1. Jump discontinuity :

In this type of discontinuity both side of limit that left hand side and right hand side limit exist but both represents the different value .

2. Infinite discontinuity :

In this case both the side of limit exist but are reaches to infinity.

3. Endpoint discontinuity:

In this case only one side either left or right side of limit exist.

4. Mixed discontinuity:

In this case at least one side of limit either right or left does not exist.

Therefore, the four types of discontinuity are :

Jump discontinuity , infinite discontinuity, endpoint discontinuity, and Mixed discontinuity.

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The number where the digit 6 have a value that is 10 times as great as the digit 6 in the number 62,045 is A. 640,488.

It should be noted that a place value is the value that is represented based on the position of a number.

In this case, the digit of 6 in 62,045 is 60000. From the options, the digit of 6 in 640488 is 600000. This is 10 times the value.

Therefore, the number where the digit 6 have a value that is 10 times as great as the digit 6 in the number 62,045 is 640,488. The correct option is A.

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Equation 3x2 + 2x + 1 = 0's discriminant is -8.

D = b2 - 4ac is the quadratic equation's discriminant.

where a, b, and c are the coefficients of the equation in the form ax² + bx + c = 0.

Therefore,

D = b² - 4ac

= 2² - 4(3)(1)

= -8

The discriminant of a quadratic equation is found by using the formula D = b² - 4ac, where a, b, and c are the coefficients of the equation in the form ax² + bx + c = 0. In this case, a = 3, b = 2, and c = 1, so the discriminant would be D = b² - 4ac = 2² - 4(3)(1) = -8.

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Find the total digits' factorial. Add the factorial together and save it as a variable (s). Compare the total to the specified number (N). The number (N) is a special number if the total equals the number, else it is not.

An element that can be represented by the sum of two numbers, one of which is the opposite of the other, is referred to as a peculiar element. similar to Array is 22 and 121. In this case, 22 = 11 + 11, and 121 = 92 + 29. Consequently, both elements are unique. The PHP count() or sizeof() functions can be used to determine the number of values or elements in an array.

When a variable is initialized with an empty array, the count() and sizeof() functions return 0, but they may also return 0 when a variable is not set.

How many special integers are there in an array:

function findMagicNumber(arr[0...n])

spell n:= NaN

Then magic n:=arr[0] if n = 1

If n is more than 1,

then quicksort(arr) old n:= arr[0]

for i:= 1 to n cur n:= arr[i] repeat:= 0

repeat:=repeat plus one

If repeat is 1,

then magic n:=old n, old n:=cur n, and magic n:=repeat:=0

return magic n.

If cur n old n,

then repeat is 1,

then if repeat = 1

then magic n:=old n, cur_;

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It would cost 0.72 pounds to buy the envelopes from VALUEWORLD

first of all, we would have to calculate what the cost would be for LETTER 2GO

This is 450 / 25 x 3.29

= 59.22 dollars

The next option would be for us to solve for the cost for Value 2 world.

This is given as 450 / 30 * 1.95*2

= 58.50 dollars

The cost of getting the envelope from value world would be given as 59.22 - 58.50

= 0.72 pounds

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Answer:

no

Step-by-step explanation:

We apply the rational root theorem to identify potential rational roots.

Given,

How do you identify a possible logical root?

We can utilize the following parameters in our calculation based on the question:

We have to calculate the potential rational root of a function;

Here,

The following procedures are used to apply the rational root theorem to the possible rational root.

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Answer:

The slope of this line (m) is 5

Step-by-step explanation:

Slope is the change in y over the change in x.

The y values are 80 and 50 (6,50) (12,80)  You find the change by subtracting these values

80 -50 = 30

The x values are 12 and 6 (6,50) (12,80)  You find he change by subtracting these values.

12 - 6 = 6

[tex]\frac{30}{6}[/tex]  this reduces to 5

The coordinates of point B is (1, -1)

Define Reflection on a Point

A reflection point occurs when a figure is constructed around a single point known as the point of reflection or centre of the figure. For every point in the figure, another point is found directly opposite to it on the other side.

Given,

Point A (7, 1) is reflected over the point (4, 0)

We know that,

The reflected point will be equidistant from the point over which it is reflected as the original point and in the same line as the original point and the reflected point.

Find the difference between the x and y values of the given points

For x value = 4 - 7 = -3

For y value = 0 - 1  = -1

Now, add the value to the reflection point.

x - axis : 4 +(-3) = 1

y - axis : 0 + (-1) = -1

Hence, the coordinates of point B is (1, -1)

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Answer: 4

Step-by-step explanation: 10, 6, 4, 4, 6, 4, 1.

In total, there are seven numbers.

The fourth number, number four (4), is the middle because it's in the middle.