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Solve the system of equations.4x + 3y + z= -6x-3y + 2z=011x-2y + 3z = - 26
General
4 months ago
Find the area of the shaded regions below. Give your answer as a completely simplified exact value in terms of π (no approximations). PLSS Solve Both Thanks
General
4 months ago
12. The Opera is collecting monies in advance for ticket sales. The tickets cost $17.50 each.If they have collected $6842.50 already, then how many tickets have they sold in advance?Equation:Solution:
General
4 months ago
6. Give a Teacher's Solution using algebra for the followingproblem: A truck contains 1000 pounds of sand and concrete in the ratio 2 : 3. After x pounds of sand is added, the ratio of the sand and concrete becomes 4:5. Find x
General
4 months ago
) In flying the 76 miles from Champaign to Peoria, a student pilot sets a heading that is 11° off course and maintains an average speed of 112 miles per hour. After 15 minutes, the instructor notices the course error and tells the student to correct his heading. Through what angle will the plane move to correct the heading and how many miles away is Peoria when the plane turns?
General
4 months ago
Help please Determine if the lines that pass through the given points are parallel, perpendicular or neither. Line A: (5, 10) and (12, 6) Line B: (-2, 4) and (5, 8)
General
4 months ago
Find the vertex of the parabola. y= -4x^2+24x-35Answer ASAP
General
4 months ago
At a salon, there are nail technicians and hair stylists. The salon owner wants to expand, but can only afford to add more thansenpositions. A typical nail technician can see 10 clients per day. A typical har stylist can see 15 cients per day. The salon une hoces tobe able to see more than 100 clients per day.The new positions constraint is represented by x+ys 9, where x represents the number of nail tech cans and represents thenumber of hair stylists. Find the inequality representing the clients constraint for this situationa. 10x + 15y2 100b. 10x + 15y > 100c. 10x + 15y < 100d. 10x + 15 5 100
General
4 months ago
1. 5. What is the frequency of a wave that has a wave speed of 120 m/s and a wavelength of 0.40 m
General
4 months ago
Determine the approximate ordered pair for f(x) = g(x). the graph of two linear functions 4 times x plus 15 times y equals 400 and 20 times x minus 4 times y equals negative 20 (26, 4) (18, 4) (4, 26) (4, 18)
General
4 months ago
Marcus receives an inheritance of 6,000 he decides to invest the money in a 14-year certificate of deposit that pays 6.5% interest compounded monthly. How much money will Marcus receive when he redeems the CD at the end of the 14 years?
General
4 months ago
Shorney Construction Company bids on projects assuming that the mean idle time per worker is 72 or fewer minutes per day. A sample of 30 construction workers will be used to test this assumption. Assume that the population standard deviation is 20 minutes. a. State the hypotheses to be tested. Anderson, David R.. Essentials of Statistics for Business and Economics (p. 435). South-Western College Pub. Kindle Edition.
General
4 months ago
John is building his daughter a doll house that is a miniature model of their house. The front of their house has a circular window with a diameter of 5 feet. If the scale factor for the model house is 1/30, make a sketch of the circular doll house window.
General
4 months ago
At Sam’s Swimming Pool Cleaning, Sam charges each of his 85 customers $25 per week for 52 weeks of service every year. Since pool cleaning is a service, it has no cost other than labor and supplies, which cost Sam $48,000 each year. Calculate Sam’s annual gross profit. a) $2,125 b) $4,420 c) $62,500 d) $110,500
General
4 months ago
Suppose you write a book. The printer charges $4 per book to print it, and you spend $3500 on advertising. You sell the book for $15 a copy. How many copies must you sell so that your income from sales is greater than your total cost?
General
4 months ago
Which statement correctly compares the centers of the distributions?A. The mean of Southview HS is greater than the mean of NorthHeights HS.B. The range of North Heights HS is greater than the range ofSouthview HS.C. The median of Southview HS is greater than the median of NorthHeights HS.D. The mean of North Heights HS is greater than the mean ofSouthview HS.
General
4 months ago
not? Is t(n)=2⋅3n a function? b. Is it possible for t(n) to equal 1400? If so, find the value of n that makes t(n) = 1400. If not, justify why not. c. Is it possible for f(x) to equal 1400? Be prepared to share your justification with the class. d. How are the functions similar? How are they different?
General
4 months ago
A randomly selected sample of n = 12 students at a university is asked, \How much did you spend for textbooks this semester?" The responses, in dollars, are 200, 175, 450, 300, 350, 250, 150, 200, 320, 370, 404, 250 (a). Construct an approximate 95% confidence interval for the population mean using the CLT. (b). If the data are assumed from N(µ; σ2), construct an exact 95% confidence interval for the population mean.
General
4 months ago
the sum of two integers is 8. their difference is 6. what are the two integers?
General
4 months ago
Two is a zero of the equation x^3−x^2−14x+24=0.Which factored form is equivalent to the equation?A) (x+4)(x−2√)(x+2√)=0B) (x−2)(x+2)(x+4)=0C) (x−3)(x−2)(x+4)=0D) (x−3)(x+2)(x+4)=0 THE ANSWER IS C ) (x-3)(x-2)(x+4)=0trust me on this.
General
4 months ago
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