( please help me )THIS SEEMS SIMPLE BUT CAN SOMEONE HELP!!!!!!!!! I WILL MARK BRAINLEST Question solved general 10 months ago 3658
It takes 4 lawnmowers to cut 2 acres of grass in 2 hours. If the amount of time varies directly with the amount of grass and inversely with the number of lawnmowers, how many hours will it take 2 lawnmowers to cut 6 acres of grass?A. 3B. 4C. 8D. 12 Question solved general 10 months ago 3122
This set of ordered pairs defines a function. {(-49,7), (-56,8), (-63,9), (-70,10)} Which table represents the inverse of the function defined by the ordered pairs? A. x 7 8 9 10 y -49 -56 -63 -70 B. y -70 -63 -56 -49 x -10 -9 -8 -7 C. y 49 56 63 70 x -7 -8 -9 -10 D. x 7 8 9 10 y 49 56 63 70 Question solved general 10 months ago 4079
Three machines operating independently, simultaneously, and at the same constant rate can fill a certain production order in 36 hours. If one additional machine were used under the same operating conditions, in how many fewer hours of simultaneous operation could the production order be filled?a) 6b) 9c) 12d) 27e) 48 Question solved general 10 months ago 6353
Find the rational zeros of the polynomial function, f(x)= 4x^3-8x^2-19x-7 Question solved general 10 months ago 8179
It costs $3 per hour to park in a parking lot, with a maximum cost of $12.Explain why the amount of time a car is parked is not a function of the parking cost Question solved general 10 months ago 9261
Morales Publishing's tax rate is 40%, its beta is 1.10, and it uses no debt. However, the CFO is considering moving to a capital structure with 30% debt and 70% equity. If the risk-free rate is 5.0% and the market risk premium is 6.0%, by how much would the capital structure shift change the firm's cost of equity? Question solved general 10 months ago 5804
In order to estimate the average electric usage per month, a sample of 81 houses was selected and the electric usage was determined. Assume a population standard deviation of 450 kilowatt-hours. If the sample mean is 1858 kWh, the 95% confidence interval estimate of the population mean is _________? Question solved general 10 months ago 3151
On the first day of June, there were about 17.86 h of daylight in a city. Five months later, there were about 8.40 h of daylight. What was the percent decrease?(Round to the nearest whole number as needed.) Question solved general 10 months ago 8728
The area of a rectangular plot 32 feet long and 25 feet wide will be doubled by adding an equal width to each side of the plot. Which equation can be used to find this added width?(x + 32)(x + 25) = 1600(2x + 32)(2x + 25) = 1600(2x + 32)(x + 25) = 800(x + 32)(x + 25) = 800 Question solved general 10 months ago 1834
A ball is thrown upward with an initial velocity of 35 meters per second from a cliff that is 30 meters high. The height of the ball is given by the quadratic equation h=-4.9t^2+35t+30 where h is in meters and t in the time in seconds since the ball was thrown, find the time it takes the ball to hit the ground. Round you answer to the nearest tenth of a second.I understand the the equation is given to you, but I'm not certain how to figure it out. If someone could instruct me on HOW to get the correct answer instead of just giving me the answer, I would appreciate it. Question solved general 10 months ago 5161
The sequence below represents Marisa's fine at the library for each day that she had an overdue book: $0.50, $0.65, $0.80, $0.95, $1.10, ...Which equation represents Marisa's library fine as a function of a book that is n days overdue? Question solved general 10 months ago 2214
Let the number of chocolate chips in a certain type of cookie have a Poisson distribution. We want the probability that a cookie of this type contains at least two chocolate chips to be greater than 0.99. Find the smallest value of the mean that the distribution can take. Question solved general 10 months ago 6199
Suppose you and a friend each choose at random an integer between 1 and 8, inclusive. For example, some possibilities are (3,7), (7,3), (4,4), (8,1), where your number is written first and your friend’s number second. Find the following probabilities.a. p(you pick 5 and your friend picks 8)b. p(sum of the two numbers picked is < 4)c. p(both numbers match) Question solved general 10 months ago 4074
Eduardo, Sarah, Maria, Jim, and Tyrone have all been invited to a dinner party. They arrive randomly and each person arrives at a different time.a. In how many ways can they arrive? b. In how many ways can Eduardo arrive first and Tyrone last?c. Find the probability that Eduardo will arrive first and Tyrone last. Question solved general 10 months ago 3623
This composite figure is made of two identical pyramids attached at their bases. Each pyramid has a height of 2 units.2 identical pyramids with rectangular bases are connected at their base. The height of the pyramid is 2. The lengths of the sides of the rectangle are 5 and 0.25 units. Question solved general 10 months ago 1344
In triangle FGH, if the measure of angle G is five less than twice the measure of angle F and the measure of angle H is eighteen less than four times the measure of angle F, find the measure of angle G. Question solved general 10 months ago 9817
A vendor sells h hot dogs and s sodas. If a hot dog costs twice as much as a soda, and if the vendor takes in a total of d dollars, how many cents does a soda cost? Question solved general 10 months ago 3026
prism M and pyramid n have the same base area and the same height. cylinder p and prism Q have the same height and the same base perimeter. cone z has the same base area as cylinder y but its height is 3 times the height of cylinder y the figures_ and _ have the same volume Question solved general 10 months ago 2806
A random sample of eighty-five students in Chicago city high schools takes a course designed to improve SAT scores. Based on these students, a 90% confidence interval for the mean improvement in SAT scores from this course for all Chicago city high school students is computed as (72.3, 91.4) points. The correct interpretation of this interval is__________.A. that 90% of the students in the sample had their scores improve by between 72.3 and 91.4 points.B. that 90% of the students in the population should have their scores improve by between 72.3 and 91.4 points.C. Neither choice is correct. Question solved general 10 months ago 7168