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The length of a rectangle is 5 less than twice the width. If the perimeter of the rectangle is 146 centimeters, find the dimensions of the rectangle.
General
7 months ago
Cindy has 26 nickels. She is getting rolls of nickels from the bank. She has enough money to get up to 10 rolls of nickels and each roll contains 40 nickels. The bank will not give partial rolls. The function that models the number of nickels Cindy will have after leaving the bank is f(r)=40r+26, where r is the number of rolls of nickels she gets.What is the practical domain of the function?all real numbersr>1all integers from 1 to 10, inclusive{66, 106, 146, 186, 226, 266, 306, 346, 386, 426}
General
7 months ago
Satellites KA-1212 and SAL-11 have spotted a UFO. Scientists want to determine its distance from KA-1212 so they can later determine its size. The distance between the satellites is 900 km. If KA-1212's camera is focused on SAL-11 , it must rotate 60° to see the UFO. If SAL-11's camera is focused on KA-1212, it must rotate 75° to see the UFO. How far is the UFO from KA-1212? Round your answer to the nearest kilometer.
General
7 months ago
Which list contains ONLY rational numbers?
General
7 months ago
The table shows the time a patient spends at the dentist and the amount of the bill.What is the correlation coefficient for the data in the table?–0.93–0.270.270.93
General
7 months ago
A major league baseball pitcher throws a pitch that follows these parametric equations:x(t) = 143ty(t) = –16t2 + 5t + 5.Recall that the speed of the baseball at time t is s(t)=√ [x '(t)]2 + [y ' (t)]2 ft/sec. What is the speed of the baseball (in mph) when it passes over homeplate?
General
7 months ago
The table shows the shipping costs for items of different values.Which best describes the strength of the model?a weak positive correlationa strong positive correlationa weak negative correlationa strong negative correlation
General
7 months ago
You parents gave you $50 to take your brother and sister to the movies. Your ticket cost $7.25 and your siblings cost $4.25. If you spent an additional $20 on soda and popcorn, how much money did you bring home with you?Adults: 7.25Seniors: 6.00Children under 8: 4.25
General
7 months ago
The table shows the number of flowers in four bouquets and the total cost of each bouquet.What is the correlation coefficient for the data in the table?–0.57–0.280.280.57
General
7 months ago
Elly buys 75 shares of stock in a mutual fund for a total investment of $450. She sells 50 shares of her stock for total proceeds of $400. Determine if Elly made a profit or loss, and how much per share.
General
7 months ago
Which statement best describes the excluded values of a rational expression?A.The number of excluded values of a rational expression cannot exceed the degree of the numerator.B.The number of excluded values of a rational expression cannot exceed the degree of the denominator.C.The number of excluded values of a rational expression cannot exceed the sum of the degrees of the numerator and denominator.D.The number of excluded values of a rational expression cannot exceed the difference in the degrees of the numerator and denominator.
General
7 months ago
PLEASE HELP!!!!!!!!!!!!!! AND THANK YOU :-) 15 POINTS A concession-stand manager buys bottles of water and soda to sell at a football game. The manager needs to buy a total of 4,500 drinks and have 25% more water than soda. Let w be the number of bottles of water and let s be the number of bottles of soda. Create a system of equations for w in terms of s that the manager could use to find out how many bottles of water and soda to buy. (?) = 4500 (?) (?)W= (?) (?) (?)
General
7 months ago
Saturn is located at a distance of 9.54 AU from the Sun what is its orbital period
General
7 months ago
Justin bought a calculafor and a binder that were both 15% off the original price. The original price of the binder was $6.20. Justin spent a total of $107.27. What was the original price of the calculator?
General
7 months ago
Write a unit test for addinventory(). call redsweater.addinventory() with parameter sweatershipment. print the shown error if the subsequent quantity is incorrect. sample output for failed unit test given initial quantity is 10 and sweatershipment is 50: beginning tests. unit test failed: addinventory() tests complete. note: unit test failed is preceded by 3 spaces.
General
7 months ago
Simplify the expression x^2+3x-28/x^2-7x+12
General
7 months ago
Luisa draws a regular nonagon and rotates it about its center. which angle measures can luisa rotate the regular nonagon through to map it onto itself? select each correct answer. 40° 80° 90° 120° 160° 180°
General
7 months ago
What is the equation of the line graphed below? Select the correct answer below.A.1/2x+y=3B.1/2x+y=6C.-1/2x+y=3D.-1/2x+y=6
General
7 months ago
This extreme value problem has a solution with both a maximum value and a minimum value. use lagrange multipliers to find the extreme values of the function subject to the given constraint. f(x, y, z) = 8x + 8y + 4z; 4x2 + 4y2 + 4z2 = 36
General
7 months ago
The width of a rectangle is 2m less than the length. the area is 48m squared. find the dimensions
General
7 months ago
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