What is the length of segment CE if AE = 15 inches and ED = 5 inches and EB = 3 inches?A. 45 inches B. 9 inches C. 15 inches D. 14 inches Question solved general 4 months ago 8851
the cup was filled at a constant rate. it started empty. after 2 seconds, it held 70 cm^of water.Find the percent of the cup that is filled with water after 3 seconds. Question solved general 4 months ago 6752
Suppose it costs $8 to roll a pair of dice. you get paid the sum of the numbers in dollars that appear on the dice.a. what is the expected value of the game?b. is it a fair game? Question solved general 4 months ago 6542
talia wants to write the equation of the graphed line in point-slope form. These are the steps she plans to use: Step 1: Choose a point on the line, such as (2, 5). Step 2: Choose another point on the line, such as (1, 3). Step 3: Count units to determine the slope ratio. The line runs 1 unit to the right and rises 2 units up, so the slope is. Step 4: Substitute those values into the point-slope form. y – y1 = m(x – x1) y – 3 = (x – 1) Which of Talia’s steps is incorrect? Step 1 is incorrect because it uses a point that is not on the line. Step 2 is incorrect because it uses a point that is not on the line. Step 3 is incorrect because it shows an incorrect ratio of the slope. Step 4 is incorrect because it shows an incorrect substitution of (1, 3) into the point-slope form Question solved general 4 months ago 2538
A geometry class is asked to find the equation of a line that is parallel to y – 3 = −(x + 1) and passes through (4, 2). Trish states that the parallel line is y – 2 = –1(x – 4). Demetri states that the parallel line is y = –x + 6. Are the students correct? Explain. Trish is the only student who is correct; the slope should be –1, and the line passes through (4, 2). Demetri is the only student who is correct; the slope should be –1, and the y-intercept is 6. Both students are correct; the slope should be –1, passing through (4, 2) with a y-intercept of 6. Neither student is correct; the slope of the parallel line should be 1. Question solved general 4 months ago 7818
At 9:00 pm bob leaves his home and starts walking to the bus stop at a constant speed of 9.3 feet per second. bob's house is 4320 feet from the bus stop.a. define variables for the quantities that are changing (be specific).b. what does it mean to say bob walks at a constant speed of 9.3 feet per second?c. consider the formula d = 4320 – 9.3t i. what does t represent? ii. what does 9.3t represent? iii. what does d represent? Question solved general 4 months ago 8622
An auditorium has 80 rows of seats and the number of seats per row increases at a constant rate. If there are 32 seats in the 8th row, and 68 seats in the 20th row, how many seats are in the last row? Question solved general 4 months ago 3834
To help restore a beach sand is being added to the beach at a rate of s(t) = 65+24sin(.3t) tons per hour, where t is measured in hourse since 5:00a.m. how many tons of sand are added to the beach over the 3-hour period from 7:00a.m. to 10:00a.m.? Question solved general 4 months ago 1601
In a binomial distribution, n = 12 and π = .60.a. find the probability for x = 5? (round your answer to 3 decimal places.) probabilityb. find the probability for x ≤ 5? (round your answer to 3 decimal places.) probabilityc. find the probability for x ≥ 6? Question solved general 4 months ago 8292
One-hour carbon monoxide concentrations in 43 air samples from a section of a city showed an average of 11.6 ppm and a standard deviation of 7.08. after a traffic control strategy was put into place, 19 air samples showed an average carbon monoxide concentration of 6.4 ppm and a standard deviation of 6.94. it is known that carbon monoxide concentrations are normally distributed. the state will adopt the traffic control strategy on a large scale if there is evidence that it reduces carbon monoxide concentrations by at least 2 ppm. with h_0:\mu_1-\mu_2=2; \ \ \ h_a:\mu_1-\mu_2>2 h 0 : μ 1 − μ 2 = 2 ; ha.μ 1 − μ 2 > 2 the appropriate test statistic is . at the 10% level of significance, we , which means that . Question solved general 4 months ago 8397
In addition to prizes for first, second, and third place, the organizers of a race have a prize that they want each participant to have an equal chance of winning. Select the description of a fair method of choosing a winner for this prize. A. The tallest participant will win the prize.B. If the participants in the race each have a number, the organizers could select a number by putting slips of paper with each number into a box and randomly choosing one.C. The participant in last place will win the prize.D. Each participant gets a number of slips of paper put into a box based on their finishing place. One participant is then randomly chosen from the box. Question solved general 4 months ago 1271
Which equation represents a line that is perpendicular to the line represented by 2x-y=7? Question solved general 4 months ago 9093
A store sells 4 main types of chocolate bars milk chocolate dark chocolate white chocolate and hazelnut chocolate the store employees survey 50 students at random If 450 chocolate bars are to be ordered how many should be milk chocolate A) about 252B) about 198C) about 450 D) about 225 Question solved general 4 months ago 5135
He sum of three numbers is 19 . the sum of twice the first number, 4 times the second number, and 5 times the third number is 72 . the difference between 4 times the first number and the second number is 12 . find the three numbers ti84 Question solved general 4 months ago 4906
The brothers Nimrah and Agom split their harvest in half, so both brothers could recieve an equal amount. Nimrah thought it that Agom should recieve more so during the night Nimrah took 1/3 of his share of the harvest and put it in Agom’s pile. The next night Agom also had the same thought, so he quietly went out to take 1/3 from his pile and put it in Nimrah’s pile. Did both brothers have the same amount of harvest? Question solved general 4 months ago 9132
A, b and c are the sides of a right triangle, where side a is across from angle a, side b is across from angle b, and side c is across from the right angle. if a=19 and b=34∘, find the missing sides and angles in this right triangle Question solved general 4 months ago 7124
Find the surface are of a rectangular prism.Length:10inWidth:5 1/2inHeight:6 1/4 Question solved general 4 months ago 6767
Solve the system of equation below. 5x+2y=9 2x-3y=15A.(3,-3)B.(12,-3)C.(-3,12)D.(-3,3) Question solved general 4 months ago 6691