china-tushu
Calculators
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
Qna
Math
china-tushu
china-tushu
Home
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
Qna
Math
MATH SOLVE
Home
A survey of 865 voters in one state reveals that 408 favor approval of an issue before the legislature. Construct the 95 % confidence interval for the true proportion of all voters in the state who favor approval. A) 0.435 < p < 0.508 B) 0.444 < p < 0.500 C) 0.471 < p < 0.472 D) 0.438 < p < 0.505
General
2 months ago
A tire company measures the tread on newly-produced tires and finds that they are normally distributed with a mean depth of 0.98mm and a standard deviation of 0.35mm. Find the probability that a randomly selected tire will have a depth less than 0.70mm. Would this outcome warrant a refund (meaning that it would be unusual)?
General
2 months ago
Sixty-four tickets are issued for a schooldance, and 96 brownies are ordered forthe refreshment table. Each student getsthe same number of tickets as everyother student. Each student also gets thesame number of brownies as every otherstudent.Each student will get — tickets and _brownies.
General
2 months ago
2x-5=3x^2 find the root of X
General
2 months ago
Hey, can I please get some help with this? It shouldn’t be too hard, thanks!
General
2 months ago
The manager of a movie theater found that Saturdays sales were $3675. He knew that a total of 650 tickets were sold on saturday. Adult tickets cost $7.50, and children tickets cost $4.50. How many of each kind of ticket were sold?
General
2 months ago
4. Which ratios form a proportion? Use cross products to test each pair.A. 9/17 27/50B. 12/35 24/75C. 15/55 33/121D. 12/35 20/70
General
2 months ago
Which of the following points is a solution to a system of linear equationsy<3x+5y>-2/3x-3 _a.(3,14)b.(3,9)c.(3,-14)d.(3,-9)
General
2 months ago
The sum of the first ten terms of a particular arithmetic sequence is four times the sum of the first five terms of the sequence. What is the ratio of the first term to the second term? Express your answer as a common fraction.
General
2 months ago
Please help! The question is in the picture!
General
2 months ago
how do i do these inverse trig
General
2 months ago
is the sequence geometric if so identify the common ratio 1/3, 2/9, 4/27, 8/81, 16/243
General
2 months ago
Solve the system of equations below by graphing both equations with a pencil and paper. What is the solution? y = x + 5 y = –2x – 1 A. (0, –1) B. (0, 5) C. (–2, 3) D. (–2, –1)
General
2 months ago
Maya is choosing between several pay plans for her new job. If she usually has monthly sales of about $5,000, which plan would allow Maya to earn the most money in a month?PlanMonthly base salaryCommission rateA$5008%B$6007%C$7006%D$8005%
General
2 months ago
The manager of a grocery store wants to determine the average amount of money spent at his store as it compares to the average dollar amount spent at his competitor's store. At the end of the day, he reviews the amounts of the last 15 grocery orders. The amounts rounded to the nearest dollar are:41, 38, 19, 30, 21, 53, 34, 34, 37, 29, 50, 43, 57, 28, 50He then visits the store of his competitor and surveys the first 15 people leaving the store with groceries. The amounts he records, also rounded to the nearest dollar, are:86, 15, 75, 40, 51, 60, 27, 45, 112, 7, 65, 31, 18, 27, 69What is the average amount of money spent at each store to the nearest cent?For which store is the mean a better representation of the data? In two or more complete sentences, explain your answer.
General
2 months ago
The balance of Aaron's average balance checking account at the beginning of last cycle was $400, and the only transaction for the cycle was a check that Aaron wrote for $200, which cleared exactly halfway through the cycle. On what amount did Aaron's checking account pay interest last cycle?
General
2 months ago
Let f(x) =x^2+10x+29What is the minimum value of the function?____
General
2 months ago
Sylvie needs $110 for a concert ticket. She already has $16 and she can earn the rest by working 10 hours at her job. If h represents her hourly earnings, which of the following equations can be solved to find Sylvie’s hourly earnings? Select all that apply. A. 110 – 16 = 10h B. 110 = 16h + 10 C. 16 = 110 – h D. 110 = 16 + 10h E. 110 + 16 = 10h
General
2 months ago
A plane left on time at noon on Monday. It arrived at its destination at 8:16 PM the same day, which was 16 minutes late. On average, how many seconds did the plane fall behind every fifteen minutes?
General
2 months ago
Which expression is equivalent to (3m)(4m)^2?
General
2 months ago
Previous
1
2
3
4
5
6
7
8
9
10
11
12
13
Next