What is the length of the radius of a circle with a center at the origin and a point on the circle at 8 + 15i? Question solved general 4 months ago 4422
The equation y = 8.1x models the relationship between the number of hours Alexander works, x, and the dollar amount he earns, y. Which is the graph of the equation y = 8.1x? Image for option 1 Image for option 2 Image for option 3 Question solved general 4 months ago 5150
A news reporter wants to estimate the percentage of registered voters who will vote for a particular candidate in an upcoming election. Which statement describes a method that will help him accurately estimate this percentage? A.) He could contact every resident in the town, ask whether the resident will vote for the particular candidate, and then calculate the percentage of residents who say they will vote for the particular candidate. B.)He could ask employees at the newspaper which candidate each will vote for, and then calculate the percentage who will vote for the particular candidate. C.)He could take a random sample of registered voters, and then calculate the percentage of the sample who will vote for the particular candidate. D.)He could ask his readers to respond to a survey that asks which candidate the reader will vote for and then calculate the percentage of people who say that they will vote for the particular candidate. Question solved general 4 months ago 9382
The marketing department of a sports supply store wants to estimate the percentage of adults in the town who belong to a gym.Which statement describes a method that will help the marketing department accurately estimate this percentage?A)Select the store’s first 20 customers every day for one week, and ask each person whether he or she belongs to a gym. Calculate the percentage of the total who say “yes.”B)Take a random sample of adults at the local park, and ask each person whether he or she belongs to a gym. Calculate the percentage of the total who say “yes.”C)Take a random sample of adults in the town, and ask each person whether he or she belongs to a gym. Calculate the percentage of the total who say “yes.D)Take a random sample of the store’s adult customers, and ask what percentage of their friends belong to a gym. Calculate the mean of the responses. Question solved general 4 months ago 8566
a business analyst makes 20$ an hour for the first 42 hours he works during a week and 28$ an hour for each worked over 42 hours. which piecewise equation models his weekly pay y in dollars as it relates to the number of hours x that he has worked during the week Question solved general 4 months ago 2622
At noon, ship a is 60 km west of shipb. ship a is sailing south at 15 km/h and ship b is sailing north at 5 km/h. how fast is the distance between the ships changing at 4:00 pm? Question solved general 4 months ago 6514
A square is cut out of a circle whose diameter is approximately 14 feet. What is the approximate area of the remaining portion of the circle in square feet? Question solved general 4 months ago 3516
A homeowner has 60 feet of fencing material to enclose a rectangular area for his pets to play in. One side of the house will be used as a side of the play area. What deminsions should be used in order to maximize the play area? Question solved general 4 months ago 4453
John says the transformation rule (x, y) es002-1.jpg (x + 4, y + 7) can be used to describe the slide of the pre-image (4, 5) to the image (0, ???2). What was his error? Question solved general 4 months ago 1147
Cubic bins with closed tops are used to transport melons to the farmers market. The edge length of each bin is 1.5 m. What is the surface area of the outside of one of the bins? Drag and drop the correct answer into the box. 3.375 91 1.25 13.5 m?? Question solved general 4 months ago 2997
the law of cosines is used to find the value of m. m2 = 272 + 182 ??? 2(27)(18)cos(28??) m2 = 729 + 324 ??? (972)cos(28??) m2 = 1053 ??? (972)cos(28??) To the nearest whole number, the value of m is . Question solved general 4 months ago 2174
Janine wishes to conduct a poll to predict how many dance club members will vote for her for club president.Which polling methods are likely to be biased?Select each correct answer.A. Five of Janine's friends are selected and asked for whom they intend to vote.B. From a list of all club members, 25 members are selected at random and asked for whom they intend to vote.C. Janine chooses 5 members that plan on voting for her and asks each to select another 5 members. These 25 members are asked for whom they intend to vote.D. Every 10th club member from a list of all members is selected and asked for whom the member intends to vote. Question solved general 4 months ago 6150
Use the triangle pictured to calculate the following measurements. Perimeter: p = ___ units Semiperimeter: s = ___units Area: A ≈ ___squaretriangle is 8 by 12 by 10 Question solved general 4 months ago 1567
Every cereal box has a gift inside, but you cannot tell from the outside what the gift is. the store manager assures you that 13 of the 47 boxes on the shelf have the secret decoder ring. the other 34 boxes on the shelf have a different gift inside. if you randomly select two boxes of cereal from the shelf to purchase, what is the probability that both of them have the secret decoder ring? Question solved general 4 months ago 1177
A university is trying to determine what price to charge for tickets to football games. At a price of $18 per ticket, attendance averages 40,000 people per game. Every decrease of $3 adds 10,000 people to the average number. Every person at the game spends an average of $4.50 on concessions. What price per ticket should be charged in order to maximize revenue? How many people will attend at that price? Question solved general 4 months ago 5254
police can estimate the speed of a vehicle before the brakes are applied using the formula 0.75d = s^2 / 30.25 where is the speed in miles per hour d is the length of the vehicle's skid marks. What was the approximate speed of a vehicle that left a skid mark measuring 160 feet? 1.about 36 miles per hour 2."" 60 "" 3."" 13 "" 4"" 54 "" Question solved general 4 months ago 4914
Identify the cross section shown. a. rectangle b. circle c. trapezoid d. pentagon Question solved general 4 months ago 8239
Muriel says she has written a system of two linear equations that has an infinite number of solutions. One of the equations of the system is 3y = 2x – 9. Which could be the other equation? Question solved general 4 months ago 5491
Hilda has $210 worth of $10 and $12 stock shares. The number of $10 shares is five more than twice the number of $12 shares. How many of each type of share does she have? Question solved general 4 months ago 1743