The given function is
\(\begin{gathered} x^2-3x-6 \\ \text{gog(x)}=(x^2-3x-6)^2-3(x^2-3x-6)-6 \\ \text{Here to get gog(x), the fuunction g(x) is writtenin place of x variable in g(x) function} \end{gathered}\)Substitute x=-2 in the function gog(x)
\(\begin{gathered} \text{gog(-2)}=((-2)^2-3\ast-2-6)^2-3((-2)^2-3\ast-2-6)-6 \\ =(4+6-6)^2-3(4+6-6)-6 \\ =4^2-3\ast4-6 \\ =16-12-6 \\ =-2 \end{gathered}\)Therefore, the value of gog(-2) is -2
Davis is trying to decide between two part time jobs on Saturdays. He could make $16.25 per hour working
at the city's ice arena, but getting to work and back would cost him $7.50 round trip for travel. His other
option is to work as a dog walker in his neighborhood for $12.50 per hour but he can ride his bike or walk
there for free. He estimates he could work up to 7 hours at the arena but up to 10 hours walking dogs. He
always works at least 1 hour if he goes to the arena.
1. Write two different functions that represent Davis's gross wages, where h is the number of
hours Davis works per week, a(h) is his gross wages at the ice arena minus travel expenses, and
d(h) is his gross wages from walking dogs.
1. State the domain and range for each function.
2. If Davis works 1 hour, what would be his gross pay at each job? What if he worked 6 hours?
3. Davis wants to know what his net pay, also called take-home pay, is going to be. Assume that
10.5% of just his paycheck, not his travel expenses, is withheld for taxes at the arena. Because
dog walking is a self-employed activity, Davis estimates he needs to set aside 18% of his income
for taxes. Modify your functions from question 1 to model net pay including these tax
withholdings.
4. State the domain and range for each of these new functions.
1) Two different functions that could represent Davis' gross wages, where h is the number of hours Davis works per week, a(h) is his gross wages at the ice arena minus travel expenses, and d(h) is his gross wages from walking dogs are:
Function A: a(h) = 16.25h - 7.50
Function B: d(h) = 12.50h
2) If Davis works 1 hour, his gross pay at each job is:
1 Hour 6 Hours
a) $16.25 $97.50
b) $12.50 $75
3) To find Davis' net pay after tax, the modified functions in question 1 are as follows:
Function A: a(h) = (16.25h - 7.50)(1 - 0.105)
Function B: d(h) = 12.50h(1 - 0.18)
4) The domain and range for each of these new functions are:
Domain Range
a) Function A [1, 2, ... 7] [7.83, 15.66, ... 54.81]
b) Function B [1, 2, ... 12] [10.25, 20.5, ... 123]
What are the domain and range of a function?The domain refers to all the possible values of the independent (input) variables.
The range refers to the possible values of the dependent (output) values.
Data and Calculations:Arena Dog Walking
Pay rate per hour $16.25 $12.50
Travel expense $7.50 $0
Maximum hours worked 7 hours 10 hours
Gross pay for one hour $16.25 $12.50
Gross pay for 6 hours $97.50 $75
After
Tax 10.5% 18%
After-tax factor (1 - 0.105) (1 - 0.18)
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Plz help fast
Thank you
Answer:
1.25 is largest, 1.1 is second, 0.924 third, 0.61 fourth, 0.5 fifth, 0.12 sixth.
Step-by-step explanation:
I will edit this post and explain later because you said you need the answer fast. :)
3% of a sum of money is $60.What is the sum of money?
Answer:
2000
Step-by-step explanation:
Formula = Number x 100/Percent = 600 x 100/3 = 2,000
Following shows the steps on how to derive this formula and find out 3% of what number is 60.
Step 1: If 3% of a number is 60, then what is 100% of that number? Setup the equation.
60/3% = Y/100%
Step 2: Solve for Y
Using cross multiplication of two fractions, we get
3Y = 60 x 100
3Y = 6000
Y = 6000/100= 2000
Use Polya's four-step problem-solving strategy and the problem-solving procedures presented in this lesson to solve the following exercise.
Find the following sums without using a calculator or a formula. Hint: Apply the procedure used by Gauss. (See the Math Matters on page 31.)
+393 +394 + 395
(a) 1+2+3+4+...+392
(b) 1+2+3+4
x
546 + 547 +548 + 549
(c) 2+4+6+8+...+76 + 78 + 80 +82
(a) The sum of the series 1+2+3+4+...+392 is 77,028.
(b) The sum of the series 1+2+3+4...x is (x/2)(1 + x).
(c) The sum of the series 546 + 547 + 548 + 549 is 2,190.
To solve the exercise using Polya's four-step problem-solving strategy, we will apply the procedures presented in the lesson.
(a) For the series 1+2+3+4+...+392:
Using the arithmetic series formula Sn = (n/2)(a + l), where n is the number of terms, a is the first term, and l is the last term, we can substitute the values: Sn = (392/2)(1 + 392) = 196(393) = 77,028.
(b) For the series 1+2+3+4...x:
To find the sum of this series, we need to know the number of terms (n) based on the value of x. Since the series follows a consecutive pattern, the number of terms will be equal to x itself. Thus, the sum of the series would be Sn = (x/2)(1 + x).
(c) For the series 546 + 547 + 548 + 549:
Using the arithmetic series formula Sn = (n/2)(a + l), we can determine the number of terms (n) by subtracting 546 from 549 and then adding 1: n = 549 - 546 + 1 = 4. Substituting the values into the formula: Sn = (4/2)(546 + 549) = 2(1095) = 2,190.
The final answer for each part is:
(a) The sum of the series 1+2+3+4+...+392 is 77,028.
(b) The sum of the series 1+2+3+4...x is (x/2)(1 + x).
(c) The sum of the series 546 + 547 + 548 + 549 is 2,190.
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the sum of two numbers is 50. one of the numbers is x. what is the other number?
Answer:
they both can be 25 but there are many outcomes to get that answer
Step-by-step explanation:
can i get brainiest please?
Could be 25, could be 15, depends on what x is.
 Hey guys, I would really appreciate if one of you help me with this question
Answer: 28.25%
Step-by-step explanation:
113/400=0.2825=28.25%
The cost, c, of paper towels, based on the number of rolls, r, is given by this equation.
c=1.29r
What is the unit rate of the cost of the paper towels in dollars per roll?
Enter your answer as a decimal, like this: 42.53
\(\\ \sf\longmapsto c=1.29r\)
cost is 1$\(\\ \sf\longmapsto 1=1.29r\)
\(\\ \sf\longmapsto r=\dfrac{1}{1.29}\)
\(\\ \sf\longmapsto r=0.7\)
Cost of 0.7 rolls is 1Cost of 1 roll
\(\\ \sf\longmapsto \dfrac{1}{0.7}\)
\(\\ \sf\longmapsto \dfrac{10}{7}\)
\(\\ \sf\longmapsto 1.4\$\)
A recipe uses 8 ounces of cocoa mix to make hot chocolate for 7 people what is the unit rate in ounces per person
Answer:
1.14285714286 ounces per person
Step-by-step explaination:
To find the unit rate, divide the numerator and denominator of the given rate by the denominator of the given rate
following this rule, 8 divided by 7 is 1.14285714286
Your assignment will probably ask you to simplify
Deja leaves a 15% tip for her
waiter at a restaurant. She
leaves a $3 tip. What is the
amount of her bill before tip?
Answer: either 0.45 or 45
Step-by-step explanation:
find the average cost function C for the given total cost function
C(x) = 2,100 + 4x − 0.0003x2
The average cost function for the given total cost function is AC(x) = 2,100/x + 4 - 0.0003x.
To find the average cost function C, we need to divide the total cost function C(x) by the quantity of output produced, which is represented by x.
The formula for average cost (AC) is:
AC(x) = C(x) / x
Plugging in the given values, we have:
AC(x) = (2,100 + 4x - 0.0003x2) / x
Simplifying this expression, we get:
AC(x) = 2,100/x + 4 - 0.0003x
Therefore, the average cost function C(x) is:
C(x) = 2,100/x + 4x - 0.0003x2
This function represents the average cost per unit of output, taking into account fixed costs (2,100) and variable costs (4x - 0.0003x) that increase as output increases.
It's important to note that the cost function C(x) is quadratic, which means that the average cost function C(x) will have a U-shaped curve.
This is because initially, as output increases, fixed costs are spread out over a larger quantity of output, leading to a decrease in average cost.
However, at a certain point, the increasing variable costs will outweigh the decreasing fixed costs, causing average cost to increase again.
Overall, knowing the average cost function can be useful for businesses to make decisions about pricing, production levels, and cost management strategies.
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how long is each side of the box
Based on the information in the image, it can be inferred that the sides of the box measure 5 cm each.
How to find the measure of the sides of the box?To find the measure of the sides of the box we must carry out the following mathematical procedure:
As we know the volume of a cube is the equivalent to the length of its sides raised to the cube (raised to the 3). In this case, to identify the value of the sides we must find the cube root of the volume and the result is the length of the sides.
So this cube has a volume of 125cm³, so its sides would be the cube root of 125.
\(\sqrt[3]{125} = 5\)
According to the above, the length of the sides is 5 taking into account that all the sides are equal.
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Bookwork code: N84
Look at the poster below showing the price of pencils in a stationery shop.
Annabel wants to buy exactly 76 pencils. What is the lowest amount she can
pay?
Give your answer in pounds (£).
spar
..
Pencils for sale!
30p each
Pack of 10
pencils for £2
Based on mathematical operations, the lowest amount that Annabel can pay for pencils is $15.20
How is the lowest amount determined?The lowest amount that Annabel can pay for pencils can be determined using the mathematical operations of multiplication and division.
Multiplication and division are two of the four basic mathematical operations, including addition and subtraction.
If Annabel chooses to purchase the first pencil at 30p each, she would pay £22.80 (£0.30 x 76).
If Annabel chooses to purchase the second pencil class of a pack of 10 pencils for £2, she would pay £15.20 [£2 x (76 ÷ 10)].
Pencils for sale
30p each
Pack of 10 pencils for £2
Thus, if Annabel wants to buy the pencils, she can either pay £15.20 or £22.80, but using mathematical operations, the lowest amount she can pay is £15.20.
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the triangle D'E'F' is a dilation of the triangle DEF. what is the scale factor of the dilation?
The scale factor of the dilation is,
⇒ 1 / 3
We have to given that,
The triangle D'E'F' is a dilation of the triangle DEF.
Here, By figure we have,
E'F' = |1 - (- 2)|
E'F' = 3
And,
EF = |3 - (- 6)|
EF = 9
Now, We can formulate;
The value of scale factor is,
= E'F' / EF
= 3 / 9
= 1 / 3
Therefore, The scale factor of the dilation is,
⇒ 1 / 3
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HELP PLEASEEEEE!!!!!
what are exchange rates?
Answer:
Step-by-step explanation:
Exchange rates are the rates at which one currency can be exchanged for another currency. They represent the value of one currency relative to another currency.
Solve the system of equations.
5y−4x=−7
2y+4x=14
fv=100000, pmt=4000, i/y=5%, n=10, what is pv?
The Present value is $6,139.132.
We have,
FV=100000, pmt = 4000, I =5%, n=10
So, The present value formula is
PV=FV / (1 + \(i)^n\)
So, PV = 100, 000 / (1+ 5/100\()^{10\\\)
PV = 100,000 / (1+ 0.05\()^{10\\\)
PV = 100, 000/ (1.05\()^{10\\\)
PV = 100,000 / 1.6288946
PV= $6,139.132
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I NEED HELP I WILL GIVE ALL POINTS AND MARK BRAINIEST PLEASE HELP ME
Calculate by double integration the area of the bounded region determined by the given pairs of curves. g
Answer:
The answer is "\(\frac{9}{2}\)"
Step-by-step explanation:
If the given points are:
\(\to x^2 =8y\\\\\to -x+4y-4 =0\\\\\)
please find the graph image in the attachment.
The intersection points are: \((-2,0.5) \ \ and \ \ (4,2)\\\)
The formula for area:
\(Area= \int ( \text{upper curve - lower corve})\\\\\)
\(= \int^4_{-2} [\frac{x+4}{4} - \frac{x^2}{8}] \ \ dx \\\\= \int^4_{-2} \frac{x+4}{4} \ dx - \int^4_{-2} \frac{x^2}{8} \ dx \\\\ = \frac{1}{4} \int^4_{-2} (x+4) \ dx- \frac{1}{8} \int^4_{-2} x^2 \ dx\\\\ = \frac{1}{4} (\frac {x^2}{2}+4x)^{4}_{-2}- \frac{1}{8} (\frac{x^3}{3})^{4}_{-2} \ dx\\\\ = \frac{1}{4} [(\frac {x^2}{2}+4x)^{4}_{-2}- \frac{1}{2} (\frac{x^3}{3})^{4}_{-2}] \ dx\\\\ = \frac{1}{4} [(\frac {x^2}{2}+4x- \frac{x^3}{6})^{4}_{-2}] \ dx\\\\= \frac{9}{2}\\\)
Answer fast who will answer will be marked as brainliest
Answer:
7543/100
152/100
hope this helps!
Solve x + y, if x = -6 and y = 22
Answer:
16
Step-by-step explanation:
plug in the numeric values.
-6 + 22
16
Answer:
{x,y}={14,8}
Step-by-step explanation:
Solve equation [2] for the variable x [2] x = y + 6Plug this in for variable x in equation [1] [1] (y +6) + y = 22 [1] 2y = 16Solve equation [1] for the variable y [1] 2y = 16 [1] y = 8 By now we know this much : x = y+6, y = 8Use the y value to solve for x. x = (8)+6 = 14Please help! it’s angles again
Answer:
115-2*180
= 245
Step-by-step explanation:
Answer:
75
Step-by-step explanation:
there are 2 triangles so the angles in all add up to 360. (108*2) then you subtract all the known angles.
The tip jar contains $42.60. You share equally with 2 other sandwich makers. What is your share?
Answer:
$14.20
Step-by-step explanation:
There's 3 people because there's you and the 2 other sandwich-makers.
Divide 42.6 by 3
42.6/3=14.2
solve it pls fast
.........................
The solution to this integral \(\int\limits^{\infty} _{-\infty} e^{-x^{2} } \, dx =\sqrt{\pi}\) is equal to √π.
How to integrate the given function?In Mathematics, the Gaussian integral is sometimes referred to as the probability integral, and it highly related to the erf function, which represents the integral of the one-dimensional Gaussian function over the interval [-∞, ∞].
Generally speaking, the given integral can be computed by using the advanced techniques of combining two one-dimensional Gaussians and converting into polar coordinates;
\(I^2 =\int\int e^{(-(x^2 +y^2))}dxdy\\\\I^2 =\int\int e^{-r^2}rdr d\theta\)
In this context, we would use these integration limits [0, ∞) with respect to "r" and [0, 2π] with respect to "θ" as follows:
\(I^2 =\int\limits^{2 \pi}_{0} \int \limits^{\infty}_{0} e^{-r^2}rdr d\theta\\\\I^2 =\int\limits^{2 \pi}_{0} \int \limits^{\infty}_{0}\frac{1}{2} e^{-u}du d\theta\\\\I^2 =\int\limits^{2 \pi}_{0} [\frac{1}{2} e^{-u}]\limits^{\infty}_{0}d\theta\\\\I^2 =\int\limits^{2 \pi}_{0} (\frac{1}{2} )d\theta\\\\I^2=\frac{1}{2}[\theta]\limits^{2 \pi}_{0}\\\\I^2=\frac{1}{2}(2 \pi)-\frac{1}{2}(0)\\\\I^2=\frac{2 \pi}{2}\)
I² = π
I = √π
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Why is 4 called a constant?
Answer:
because 4 is a fixed value. and it is not a variable.
Combine like terms in the expression below.
5c + 6 + 8c - 2
Plz help
Please help me out on this questionnnnn
Answer:
20 cubic feet.
From feet: length (ft) × width (ft) × height (ft) = cubic feet.
From inches: length (in) × width (in) × height (in) ÷ 1728 = cubic feet.
From yards: length (yd) × width (yd) × height (yd) × 27 = cubic feet.
If you need to convert to cubic feet from inches: divide the final number (i.e. the total you get after multiplying the three dimensions together
Ron placed a grilled cheese sandwich, a sneaker, a pinecone, and a dog collar together on a scale. The sandwich weighs 0. 462 lb, the sneaker weighs 290. 87 g, the pinecone weighs 0. 0000453 ton, and the dog collar weighs 0. 246 kg. There are 2. 20462 pounds in one kilogram. How many ounces do all of these objects weigh in total?.
Answer: 18.55
Step-by-step explanation:
Help please!
S = 180m
How many strides would a runner take during a 1-hour run (60 min)
The number of strides the runner will make during 1 hour run will be =
10,800.
How to calculate the total number of strides made by the runner in a hour?To calculate the distance or number of strides made by the runner in an
hour, the graph given above is considered as follows;
The y-axis which represents the number of strides is plotted against the x-axis which is the number of hours.
From the graph
20 minutes= 3600 strides
60 minutes = X strides
make X the subject of formula;
x= 3600×60/20
= 216000/20
= 10,800
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A line contains the two points plotted in the coordinate plane below.
What is the slope of the line?
Answer:
The slope would be 3.
Step-by-step explanation:
The formula for finding slope is \(\frac{y1-y2}{x1-x2}\)
We can plug these numbers into the equation by doing \(\frac{1--5}{2-0}\)
1--5 is equal to 1+5, which is 6.
2-0 is equal to 2.
\(\frac{6}{2}\) is 3, which is how you get your answer.
I hope this helps! :)