What is the probability of tossing two coins and having them both land on heads? 33.3% 25% 50% 75% Question solved general 11 months ago 9428
11. Find the surface area of each figure. Leave the answers in pi where applicable. Show work14. Find the surface area of each figure. Leave the answers in pi where applicable. Show work19. Find the surface area of each figure. Round to the nearest tenth. Show work23. Find the volume. Round to the nearest tenth if necessary. Show work29. What is the volume of a sphere with a surface area of 452.39 cm2? Round your answer to the nearest hundredth. Show work Question solved general 11 months ago 6358
which matrix represents the system of equations below? { -2x-7y=3 7x-6y=12 Question solved general 11 months ago 5227
what is the equation, in standard form, of a parabola that contains the following points? ( -2, -23.5)(0,-4.5)(4,-26.5) Question solved general 11 months ago 9437
Been a while since I’ve needed to not use a calculator. Why is -2X10^-18 (3/16) = 4.09X10^-19? Question solved general 11 months ago 7179
When writing twenty-one-and-a-half-trillion in scientific notation, what is the exponent needed on the base ten?I also need an explanation on how to find this! Question solved general 11 months ago 9835
Solve the system of equations. −5x+4y=3x=2y−15x equals y equals Question solved general 11 months ago 9197
Peter is at a lumber yard. He gets 2 free boxes of nails for every 10 boards he buys. Write an expression for the number of boxes of nails Peter will get if he buys n boards. If each box has 100 nails, explain how to write an expression to find how many nails Peter will have if he purchases 90 boards. Question solved general 11 months ago 6582
What is NOT true about a hypotenuse?The sum of the two leg measures equals the hypotenuse.It is the side opposite the right angle.The measure of the hypotenuse squared is equal to the sum of the side measures squared.It is the longest side of the triangle. Question solved general 11 months ago 5499
Greg needs to buy plastic spoons. Brand A has a box of 25 spoons for $1.99 . Brand B has a box of 42 spoons for $3.89 . Find the unit price for each brand. Then state which brand is the better buy based on the unit price. Round your answers to the nearest cent. Question solved general 11 months ago 3046
Azul used a number cube with the numbers 1–6 in a simulation. He signed 1–4 as a favorable outcome and 5–6 as the unfavorable outcome. What situation could this represent?A. According to the records from the last 50 years, there is a 1/4 chances of August temperatures being above 95°F. Azul needs to find the probability that it will be above 95°F for 10 or more days this August.B. According to records from the last 50 years, there is a 16 chance of September temperatures being above 75°F. Azul needs to find the probability that it will be about 75°F for 4 or more days this September.C. According to records from the last 50 years, there is a 5/6 chance of April temperatures being above 70°F. Azul needs to find the probability that it will be above 70°F for 15 or more days this April.D. According to records from the last 50 years, there is a 2/3 chance of June temperatures being above 80°F. Azul needs to find the probability that it will be above 80° F for 20 or more days this June. Question solved general 11 months ago 4775
Heather and Joel are setting up a new budget. They have decided that the ratio of spending to saving needs to be 5:2. They have added up all of their bills for last month and see that they spent a total of $4,231. They also see that they put $2538.60 in their savings account for the month. What was their actual ratio of spending to savings last month Question solved general 11 months ago 9100
On an uphill hike, Ted climbs at a rate of 3 miles an hour. Going down, he runs at a rate of 5 miles an hour. If it takes him 40 minutes longer to climb up than run down, what is the total length of Ted's hike? Question solved general 11 months ago 3445
What is the solution to the following system? x+2y+=9;x-y+3z=13;2z=10x = 10, y = 2, z = 5x = –4, y = 2, z = 5x = 0, y = 2, z = 5x = 4, y = 6, z = 5 Question solved general 11 months ago 8239
What is the equation of the following graph in vertex form? parabolic function going down from the left through the point zero comma twelve and through the point two comma zero and turning at the point four comma negative four and going up through the point six comma zero and continuing towards infinity Question solved general 11 months ago 3009
A circle has a radius of \sqrt{13}√ 13 square root of, 13, end square root units and is centered at (-9.3,4.1)(−9.3,4.1)left parenthesis, minus, 9, point, 3, comma, 4, point, 1, right parenthesis. write the equation of this circle. Question solved general 11 months ago 1685
Five books of five different colors are placed on a shelf. the goldgold book is placed between the orangeorange and pinkpink books, and these three books are consecutive. the graygray book is not leftmost on the shelf and the pinkpink book is not rightmost on the shelf. the brownbrown book is separated from the pinkpink book by two books. if the graygray book is not next to the brownbrown book, what is the complete ordering of the books? Question solved general 11 months ago 2151
What is the difference between a sample statistic and a population parameter?a. a sample statistic is frequently impractical or impossible to find for large samples, however a population parameter is often easier to find and provides a reasonable approximation to the sample statistic.b. a population parameter is frequently impractical or impossible to find for large populations, however a sample statistic is often easier to find and provides a reasonable approximation to the population parameter.c. a sample statistic is a subset of a population parameter.d. a population parameter is a subset of a sample statistic.e. there is no difference between a sample statistic and a population parameter? Question solved general 11 months ago 5031
the library at a certain University reported the journal prices had increased by 150% over a period of 10 years The report concluded that this representing a price increase of 15% each year if journal prices had indeed increase by 15% each year what percentage increase would that give the over 10 years Ron your answer as a percentage to the nearest whole number Question solved general 11 months ago 4328