Answers
Answer:
no real numbers will make this equation true
Step-by-step explanation:
if you square both sides, you'll get sqrt(-49). this will get you an imaginary number (7i) which is not a real number.
Related Questions
Pilot Shop is a catalog business providing a wide variety of aviation products to pilots throughout the world. Maynard Shephard, the recently hired assistant controller, has been asked to develop a cost function to forecast shipping costs. The previous assistant controller had forecast shipping department costs each year by plotting cost data against direct labor-hours for the most recent 12 months and visually fitting a straight line through the points. The results were not satisfactory.
After discussions with the shipping department personnel, Maynard decided that shipping costs could be more closely related to the number of orders filled. He based his conclusion on the fact that 10 months ago the shipping department added some automated equipment. Furthermore, he believes that using linear regression analysis will improve the forecasts of shipping costs. Cost data for the shipping department have been accumulated for the last 25 weeks. He ran two regression analyses of the data, one using direct labor-hours, and one using the number of cartons shipped. The information from the two linear regressions follows:
Regression 1 Regression 2
Equation SC = 804.3 + 15.68DL SC = 642.9 + 3.92NR
R-squared .365 .729
Standard error of the estimate 2.652 1.884
t-value 1.89 3.46
where:
SC = total shipping department costs DL = total direct labor-hours
NR = number of cartons shipped
Required
1. Identify which cost function (regression 1 or regression 2) Pilot Shop should adopt for forecasting total shipping department costs and explain why.
2. If Pilot Shop projects that 600 orders will be filled the coming week, calculate the total shipping depart- ment costs using the regression you selected in requirement 1.
3. Explain two or three important limitations of the regression you selected in requirement 1, and identify one or two ways to address the limitations. Specifically include in your discussion the effect, if any, of the global nature of Pilot Shop’s business.
Answers
Step-by-step explanation:
1. The second regression should be adopted for forecasting because the R² is higher in this regression and the standard error is also smaller. the t value is also better in this regression compared to the first
2. Using regression 2, the estimated shipping cost is to be calculated here.
= 642.9 + 3.92NR
NR = 600
642.9 + 3.92X600
= 642.9 + 2352
= $2994.9
This is the estimated shipping cost.
3. The limitations could be due to error in data, the data could be unreliable because of the presence of outliers. Pilot shop is a global business so there is another factor to adds to the limitations, as this costs of buying and shipping are affected by fluctuations in exchange rate and variations in the global market.
What's the first step in solving this equation 3m+9=30
Answers
let f(x) = 1/x and g(x) = x² – 5x. What
two numbers are not in the domain of fºg?
Separate your answers with a comma.
Enter the correct answer.
Answers
Answer:
5,0
Step-by-step explanation:
f o g is a composite function, y values of g passed as x values into f.
f o g = 1/(x^2 - 5x)
in this case, the only way for the function to be undefined is when
x^2 -5x = 0
x(x - 5) = 0
x = 0 or x = 5
Laura will pay 50 dollars more in rent on her apartment in two months. If she pays 640 dollars now, what will her monthly rent be in two month's
Answers
Answer:
690
Step-by-step explanation:
640 + 50 = 690
What is the equation of a circle with a center at (−3, 2) and radius 16?
Answers
Answer:
(x+3)^2 + (y+2)^2 = 16
Step-by-step explanation:
hi!
so the equation of a circle with the center (h,k) and a radius r is:
(x-h)^2+(y+k)^2 = r^2
- h is the x value
- k is the y value
- r is the radius
so using your information you can plug in the given values into the "blanket" formula
which would result in:
(x--3)^2 + (y+2)^2 = 16^2 --> since there is a double negative, you can change that to a positive :)
this means that your equation is:
[tex](x+3)^{2} + (y+2)^{2} = 16^2[/tex]
and you can even simplify 16^2 = 256
end formula!
[tex](x+3)^{2} +(y+2)^{2} = 256[/tex]
Mr. Dalton had to take a business trip to Australia. When he went, the exchange rate was 1 Australian dollar equaled $0.76 American dollar. He exchanged $385 with an exchange fee of $6.50. How many Australian dollars did he receive? Round to the nearest whole Australian dollar
Answers
Answer:
498.03
Step-by-step explanation:
Please helpppppppppppp
Answers
Hope I helped you
Answer:
15 cm
Step-by-step explanation:
add 7 then 3 and 5
i just don’t understand the math
Answers
Answer:
5 out of 25
Step-by-step explanation:
The amount of apple fritters is 2 out of ten orders. 2/10 simplifies to 1/5. If u put 1/5 next to x/25 on a piece of paper, u can see that 5 times 5 will give u 25. This means that u should also multiply 1 times five to find the value of x. 1x5=5. So, 5 out of 25 pastries should be apple fritters. Hope this is right, let me know!
Question 13 please help& give explanation if possible thank u
Answers
Answer:
Step-by-step explanation:
x is less than or equal to 25.
Question options:
x ≥ 25
x > 25
x ≤ 25
x < 25
Answers
Answer:
3rd one
Step-by-step explanation:
since its less you would do this symbol: <
and it says equal to so that means you would put a line under the symbol
What is the midpoint of the line segment graphed below?
10
(123)
(5.-10)
O O A. (- / -13)
B. (-:-)
c. (2)
OD. (-25)
Answers
Please help me do not and please give me an explanation too please. No link please
Answers
Answer:
I'm pretty sure it's D.40 because it's the biggest number and 6+13+17 is only a bit bigger than 24. Also, all the numbers add up to 60 and 27 is only a bit less than 50% of 60
PLEASE HELP IM BEING TIMED!! WILL GIVE BRAINLIEST!!!!
A 2-column table with 7 rows. The first column is labeled Time (seconds) with entries 0, 1, 2, 3, 4, 5, 6. The second column is labeled Height (feet) with entries 3, A, 6, 7, 6, 4, B.
Assuming that the throw represents projectile motion, what are the missing values in the table?
A = 5, B = 3
A = 4, B = 0
A = 4, B = 3
A = 5, B = 0
Answers
Answer:A= 24.5
B=0
Step-by-step explanation:
Answer:
The missing value in the table of the projectile motion since it assumes a parabolic curve is A = 4, B = 3
Step-by-step explanation:
sorry its late but here it is
What is the angle of elevation of the sun when a 50-ft
mast casts an 18ft shadow? Round to the nearest
whole number.
Tan O
50
18
Tano= Opposite Leg
Adjacent Leg
0=
✓
Submit
50ft
o
F-18 ft -
Please help me solve this problem
Answers
Answer:
Step-by-step explanation:
[tex]\tan \theta=\frac{50}{18}=\frac{25}{9}\\\theta=tan^{-1} (\frac{25}{9})\approx 70^\circ[/tex]
What is the value of x?
Enter your answer in the box.
x =
$\text{Basic}$
$x$$y$$x^2$$\sqrt{ }$$\frac{x}{ }$
$x\frac{ }{ }$
$x^{ }$$x_{ }$$\degree$$\left(\right)$$\abs{ }$$\pi$$\infty$
The figure shows 2 right triangles, triangle K L J with right angle J and triangle L J M with right angle M. The measure of angle L K J is 30 degrees. The measure of angle L J M is 45 degrees. The length of side K L is 8 square root 2. The length of side L M is x.
Answers
Answer:
4
Step-by-step explanation:
I took the quiz, here's proof
How are area and volume similar?
Answers
Answer:
Area is the space within the perimeter of a two-dimensional figure. Volume is the amount of space inside the bounds of a three-dimensional object.
Step-by-step explanation:
Hope this will help
Answer:
Area is the space within the perimeter of a two-dimensional figure. Volume is the amount of space inside the bounds of a three-dimensional object.
Step-by-step explanation:
hope it helps
:)
Why is stock data calculated using the subtraction and addition method instead of a simple moving average? PLEASE HURRY I AM TAKING A TEST
Answers
Answer:
The moving average (MA) is a simple technical analysis tool that smooths out price data by creating a constantly updated average price. The average is taken over a specific period of time, like 10 days, 20 minutes, 30 weeks or any time period the trader chooses. There are advantages to using a moving average in your trading, as well as options on what type of moving average to use. Moving average strategies are also popular and can be tailored to any time frame, suiting both long-term investors and short-term traders.
Step-by-step explanation:
One disadvantage to solving systems using substitution is that isolating a variable often involves dealing with messy fractions. There is another method for solving systems of equations: the addition/subtraction method.
In the addition/subtraction method, the two equations in the system are added or subtracted to create a new equation with only one variable. In order for the new equation to have only one variable, the other variable must cancel out. In other words, we must first perform operations on each equation until one term has an equal and opposite coefficient as the corresponding term in the other equation.
sorry it is so long, i hope this helps!
Please help me I really need help
Answers
I hope this helps
Answer:
2/25 of a yard
Sasha is the manager at a factory.
Last weekend 15 employees assembled 390 identical wardrobes.
Sasha wants 1200 of these wardrobes to be assembled next weekend.
How many employees does Sasha need next weekend?
You must show your working.
Answers
The number of employees Sasha would need next weekend are = 46
Calculation of total employeesFor a weekend, 15 employees = 390 wardrobes
The number of wardrobes to be assembled next weekend= 1200
If 390 wardrobes = 15 employees
1200 wardrobes = X employees
Make x the subject of formula,
X = 1200 × 15/390
X = 18000/390
X = 46
Therefore, the number of employees Sasha would need next weekend are = 46
Learn more about employees here:
https://brainly.com/question/12831236
What is the distance between points (−, −) and (, −)?
Answers
Answer:
The distance between points (-5, −3) and (2, −7) is (7, -4)
Step-by-step explanation:
(-5, y) to (2, y) is (7, y)
(x, -3) to (x, -7) is (x, -4)
Answer:
The distance between points (-5, −3) and (2, −7) is (7, -4)Step-by-step explanation:
(-5, y) to (2, y) is (7, y)
(x, -3) to (x, -7) is (x, -4)
what's the value of s for s + 10 = 6?
Answers
-4 is the value for s
The county fair charges $1.00 per rode and an additional $3.00 to get in the fair. Write an equation to represent the total cost of attending the fair.
First identify the independent and dependent variables.
Answers
After school Philippe spent 1 3/4 hours at baseball practice, 2 1/4 hours on homework, and 1/4 hour getting ready for bed. About how many hours after school will he be ready for bed. Explain
Answers
Answer:
4 hours. 1 3/4 is about 2, and 2 1/4 rounds to 2. 1/4 would round to 0, but it would not affect the estimate's accuracy much because we rounded up by 1/4 on 1 3/4 already. Philipe spent about 4 hours on activities.
Step-by-step explanation:
When f ( x ) = 9 x 2 + x − 5 , evaluate f ( − 4
Answers
Answer:
is that supposed to be a squared x?
9(-4)^2 + (-4) - 5 = 135
9(-4) × 2 + (-4) - 5 = -81
id.k which one is right sorry
how do I solve "k−26.5=99.1"
Answers
Answer: =125.6
Step-by-step explanation:
Add 26.5 to both sides of the equation
Simplify
Dimple volunteered 32 hours last month at a local animal shelter. This is 20% of the total hours that she has volunteered this year. How many hours did she volunteer this year?
Answers
If she was to volunteer 32 hours and it is worth 20%, then that means 32 hours is 1/5 of her yearly hours. If you were to multiply her volunteer hours by five, then you are getting the year number of hours she has volunteered.
32 x 5 = 160
So, she volunteers 160 hours this year.
In the diagram, MQ is perpendicular to PR, and AMPR is isosceles. What is the measure of /MQR?
Answers
Answer:
90 I hope this helps good luck
Answer:
Its 90 degrees but I am not sure what you are asking
Step-by-step explanation:
What is 65% of 85, rounded to two decimal places?
Answers
Answer:
55.25
Step-by-step explanation:
Suzie has $2000 in a savings account. The simple interest rate is 10% each year.` How much interest will she earn in 4 years?
Answers
Answer:
800 dollars assuming it is 10 percent of 2000 dollars each year.
Step-by-step explanation:
If a class of 27 students had a mean of 72 on a test, interpret the mean of 72 in the sense of a fair share measure of the center of the test scores.
Answers
The fair share measure would mean that the score of 72 would be the score all 27 students got on the test if they all had the same score.
A fair share measure of the center of the test scores is 72 be the score all 27 students got on the test.
We have given that
a class of 27 students had a mean of 72 on a test,
What is the fair share?An equitable or reasonable portion or share of something
The fair share measure would mean that a score of
72 be the score all 27 students got on the test.
If they all had the same score.
Therefore 72 was the score all 27 students got on the test.
To learn more about the fair share visit:
https://brainly.com/question/25957457