Which properties justify the steps taken to solve the system?4x+3y=252x+−5y=19Drag the answers into the boxes to match each step. Question solved general 4 months ago 8769
Which classification best describes the following system of equations?12x+5y-3z=36x-2y+4z=39x-10y+5z=27inconsistent and dependentconsistent and dependentconsistent and independentinconsistent and independent Question solved general 4 months ago 6911
You are considering buying one of two brands of barbecue grills. Brand F costs $650 and will last for about fifteen years. Brand G costs $200 and will last for about five years, so you will need to buy three of them over the years to equal one Brand F grill. In either case, you plan to pay for the grill with your credit card, which has an interest rate of 13.01%, compounded monthly. You will pay off a Brand F grill in five years of monthly payments, and you will pay off a Brand G grill in three years of monthly payments. Assuming that you have no other purchases on your credit card, over a fifteen-year period, which kind of grill will be cheaper, and how much cheaper will it be? (Round all dollar values to the nearest cent.) a. Brand G will end up costing $159.48 less than Brand F. b. Brand G will end up costing $50.00 less than Brand F. c. Brand F will end up costing $134.28 less than Brand G. d. Brand F will end up costing $91.08 less than Brand G. Question solved general 4 months ago 1823
triangle abc has vertices a(1 4) b(-2,4) c(-1,-1) . A dilation with a scale factor of 0.25 and center at the origin is applied to the triangle. what are the coordinates of B in the dilated image? Question solved general 4 months ago 2277
Looking at the waves on an ocean beach, a girl notices that the waves reach the shore at the same time apart. She also notices that the distance between waves looks the same. In science, what do we call the distance between waves? A) amplitude B) frequency C) period D) wavelength Question solved general 4 months ago 9574
A student's cell phone plan has a monthly charge of $40 for 600 minutes of use and a $0.25/minute charge for each additional minute. Last month, the student talked on the phone for 790 minutes. Which of the following is the bill for the month? Question solved general 4 months ago 3113
The value of an autographed baseball card increased from $39 to $65. What is the percent increase in value of the baseball card? Round to the nearest hundredth of a percent Question solved general 4 months ago 4001
What is the approximate solution of this system of equations?y = x2 + 3x + 3y = x2 + x + 2(-0.5, 0.2)(-0.5, 1.7)(-0.1, 1.2)(0.2, 1.5) Question solved general 4 months ago 1258
Select the statement that best justifies the conclusion based on the given information. Conclusion: l1 and l 2 intersect only at point P. A line contains at least two points. Through any two different points, exactly one line exists. If two lines intersect, then their intersection is exactly one point. If two lines intersect, then exactly one plane contains both lines. Question solved general 4 months ago 4963
A family on vacation drives 123 miles in 2 hours, then gets stuck in traffic and goes 4 miles in the next 15 minutes . The remaining 191 miles of the trip take 3 3/4 hours. What was their average rate of speed to the nearest tenth of a mile per hour ? Question solved general 4 months ago 5968
How is the following decimal number read? 28.9A. Twenty and eight-nine tenthsB. Twenty-eight and nine hundredths C. Twenty-eight and nine tenths D. Twenty-eight nine Question solved general 4 months ago 6026
1) when to use the median to describe the measure of center of a data set, 2) what measures of spread can we find when using box-plots, 3) what measure of spread is most appropriate to describe symmetrical data sets, 4) how does an outlier affect the mean of data set and give an example, Question solved general 4 months ago 6952
Quadrilateral KLMN is a rectangle. The coordinates of L are L(1,-4), and the coordinates of Mare M(3,-2). Find the slopes of sides KL, LM, MN, and NK. Question solved general 4 months ago 5641
What is the value of x in the proportion StartFraction 6 x plus 1 over 7 EndFraction equals StartFraction 18 x minus 2 over 14 EndFraction? A. 0 B. 3 C. two-thirds D. one-fourteenth Question solved general 4 months ago 2338
a worker is tiling the floor of a rectangular room that is 12 feet by 15 feet. THe tiles are square with side lengths 1 1/3 feet. How many tiles are needed to cover the entire floor? Question solved general 4 months ago 5080
Ella's college professors assign homework independently from each other. ella knows that there is a 60% chance that she will have math homework tonight and a 70% chance that she will have english homework. what is the probability that she will not have math or english homework tonight? 10% 12% 42% 70% Question solved general 4 months ago 6833
In applied life data analysis (wiley, 1982), wayne nelson presents the breakdown time of an insulating fluid between electrodes at 34 kv. the times, in minutes, are as follows: 0.05, 0.93, 0.92, 1.18, 2.87, 3.30, 4.30, 4.68, 4.78, 6.46, 7.29, 7.88, 8.36, 12.16, 31.66, 32.59, 33.88, 36.80, and 72.89. calculate the sample mean and sample standard deviation. round the answers to 3 decimal places. Question solved general 4 months ago 6021
which is most likely the equation of the line shown on the graph? Question solved general 4 months ago 1038
1. What is the wave speed of a wave that has a frequency of 100 Hz and a wavelength of 0.30 m?2. What is the wave speed of a wave that has a frequency of 50 Hz and a wavelength of 0.10 m?3. What is the frequency of a wave that has a wave speed of 20 m/s and a wavelength of 0.50 m?4. What is the frequency of a wave that has a wave speed of 80 m/s and a wavelength of 0.20 m?5. What is the frequency of a wave that has a wave speed of 120 m/s and a wavelength of 0.40 m?6. What is the wavelength of a sound wave that has a speed of 340 m/s and a frequency of 440 Hz?7. What is the wavelength of a sound wave that has a speed of 340 m/s and a frequency of 880 Hz?8. What is the wavelength of a sound wave that has a speed of 250 m/s and a frequency of 400 Hz?9. What is the wave speed of a wave that has a frequency of 50 Hz and a wavelength of 2.0 m?10. What is the wave speed of a wave that has a frequency of 100 Hz and a wavelength of 0.50 m?please answer fast Question solved general 4 months ago 7496
A cable hangs between two poles of equal height and 30 feet apart. set up a coordinate system where the poles are placed at x=−15 and x=15, where x is measured in feet. the height (in feet) of the cable at position x i Question solved general 4 months ago 8566