Mystic

This page lists questions and answers that were posted by visitors named Mystic.

Questions

The following questions were asked by visitors named Mystic.

What is the correct definition of a princible? a)A statement of a relationship between two or more abstractions. b)A simplified, symbolic representation of a theory or conceptual scheme. c)An abstract generalization that presents a systematic explanation...
15 years ago
step by step solution of A motorist drives 80km at an average speed of 63km/h.which average is this:mean,median or mode?
9 years ago
Insert parentheses when necessary to make the number sentence true. -3,(),-1 1/8 A. -3 1/2 B. 0 C. -2 1/4 D 1 1/2 Please help I tried reading the text book but I didn't understand it.
6 years ago
Find the area of the shaded region. the graph to the right depicts iq scores of adults and those scores are normally distributed with a mean of 100 and a standard deviation of 15. the shaded area 83
6 years ago
1. Which city in Mexico do tourists often visit on vacation? A. Mexico *** B. Acapulco C. Monterrey 2. Which statement about hacienda homes is not true? A. They are always found in the center of major cities. B. They are the largest type of home in Mexico...
6 years ago
Let f(x) = x + 3 and g(x) = 3x + 5. Find f(g(4)) - g(f(4))
1 year ago
lET F(X) = 5X^2 - 5. wHAT IS F(F(X))
1 year ago
Let f(g(x)) = 3x + 3 and f(x) = x + 6/ If g(x) = ax + b, compute a + b
1 year ago
Let f(x) = 2x - 3and g(f(x)) = 5 - 4x. Find g(4)
1 year ago
Let g(2x + 5) = 4x^2 - 3x +2. Find g(-3)
1 year ago
Alice and Bob go for a run in the local park. Alice runs at 3 m/s. Bob starts from the same point as Alice, but he starts 20 seconds after Alice. Bob runs at a rate of 5 m/s. (a) Let t be the number of seconds that have elapsed since Bob started running....
1 year ago
If f(2x) = 2/2+x for all x > 0, then what is 2f(x)?
1 year ago
Let P(n) and S(n) denote the product ad the sum, respectively, of the digits of the integer n. For example, P(23) = 6 and S(23) = 5. Suppose N is a two-digit number such that N = P(N) + S(N). What is the units digit of N?
1 year ago
A function f(x,y) of two variables has the property that f(x,y) = x + f(x - 1, x - y) If f(1,0) = 5, then what is the value of f(5,2)?
1 year ago
Let m&n = m/n + n/m for all integers m,n ≠ 0. What is the value of 5 & 8?
1 year ago
The operation ★ is defined for non-zero integers as follows: a★b = 1/a + 1/b. If a + b = 9 and ab=20, what is the value of a★b?
1 year ago
Define the operation "⊙" by x⊙y = 4x - 3y + xy, for all real numbers x and y. For how many real numbers does 3⊙y=12?
1 year ago
Define x⨂y = x^3 - y. Simplify h ⨂ (h⨂h).
1 year ago
If a@b = a^4 - b^3/a - b, then for how many real values of a does a@1 = 0?
1 year ago
If 3x + 2 = 17, what is the value of x?
1 year ago
A mountain bike, originally priced at $650, is on sale for 20% off. After the fixed shipping cost of $25 is added to the new price, what is the final cost of the bike?
1 year ago
Point C divides line segment AB so that AC/AB = 1/3. If AC = 5 cm, what is AB?
1 year ago
Cooke County schools have 7 teams playing in a basketball tournament. How many games will be played if each team plays 3 games against every other team?
1 year ago
What is the area of the largest rectangular field that can be completely enclosed using 120 feet of fencing?
1 year ago
The quotient of two positive integers is 21. The difference between the larger integer and this quotient is 21. What is the sum of the two integers?
1 year ago
A sheet of paper 11 inches tall and 8 1/2 inches wide has 1-inch margins at the top and bottom and 3/4 -inch margins at each side. If nothing is to be printed in the margins, what is the area of the printable region?
1 year ago
What is the least positive integer n such that the product 65n is a perfect square?
1 year ago
The sum of the ages of Kishia and her daughter is 48 years, and the difference of their ages is 20 years. How old is Kishia?
1 year ago
A certain cube has volume n cubic inches and surface area n square inches. What is the value of n?
1 year ago
A certain cube has volume n cubic inches and surface area n square inches. What is the value of n?
1 year ago
Andrea is pouring water from a full bucket into an empty bucket. The full bucket initially contained 4800 ml of water, and Andrea pours at a steady rate of 100 ml per second. For how many seconds must Andrea pour to get the same amount of water in each bu...
1 year ago
According to a survey, 20 adults in Los Angeles watch an average of 3 hours of television per day, and 40 adults in San Francisco watch an average of 2 hours of television per day. On average, how many hours of television do the 60 adults surveyed watch p...
1 year ago
Twenty-seven unpainted unit cubes are used to construct a large 3 × 3 × 3 cube. If five of the six faces of the large cube are then painted, how many of the unit cubes are painted on exactly two faces?
1 year ago
The mean of five whole numbers is 12, and the unique mode is 13. If all five numbers are greater than 9 but less than 14, what is the median of the five numbers?
1 year ago
Two vertical poles are placed 30 feet apart, and the top of each pole is x feet above ground. The ends of a wire 34 feet in length are attached at the tops of the poles and its center is anchored to the ground halfway between the poles, as shown. What is...
1 year ago
The sequence A_n is such that an = 2a_n – 1 + 1. If a_6 = 191 and a_5 = 95, what is the value of a_2?
1 year ago
The sequence A_n is such that an = 2a_n-1 + 1. If a_6 = 191 and a_5 = 95, what is the value of a_2?
1 year ago
A relay team consisting of four runners – Anne, Bryn, Carmen and Dahlia – completed a race in 72 minutes. Anne’s leg of the race took 1/5 of the total time; Bryn’s took 1/3 of the total time; and Carmen’s took 3/10 of the total time. How many minutes did...
1 year ago
If ab = 1, bc = –9, c = –b and c < –a, what is the value of a + b? Express your answer as a mixed number.
1 year ago
Chad has $1.80 in coins consisting of nickels and dimes only. If the total value of his nickels is twice that of his dimes, how many coins does Chad have?
1 year ago
A small bag of 10 identical apples weighs n ounces, and a large bag of n of these apples weighs less than 40 ounces, where n is an integer. In ounces, what is the greatest possible weight of the large bag? Express your answer as a mixed number.
1 year ago
The sum of the first n + 2 counting numbers is 43 more than the sum of the first n counting numbers. What is the value of n?
1 year ago
What positive integer y satisfies 3x^2+ y^2− 16 = 3(x^2+ 3)?
1 year ago
An internet sales company will ship a box for free if the sum of the length, width and height is 48 inches or less. What is the maximum volume of a box 24 inches in length that ships for free ?
1 year ago
What is the sum of the first 200 terms of the arithmetic sequence 5, 12, 19, 26, ...?
1 year ago
What is the sum of the first 200 terms of the arithmetic sequence 5, 12, 19,26, ...?
1 year ago
What is the sum of the first 200 terms of the arithmetic sequence 5, 12, 19, 26, ...?
1 year ago
Maria starts out jogging from Ye Olde Bridge at 8:00 a.m. at a speed of 4 mi/h. Twelve minutes later, Nicole starts out from Ye Olde Bridge and follows the same route. At what constant rate in miles per hour must Nicole run to catch Maria at 8:42 a.m.? Ex...
1 year ago
The figure shows congruent right triangles ADH and FGE and squares AHJK, ABCD and DEGH. What is the ratio of the area of quadrilateral CDHJ to the area of hexagon ADEFGH? Express your answer as a common fraction.
1 year ago
Jose took 500 mg of medication at 2:00 p.m., and then he took another 500 mg at 6:00 p.m. However, 80% of the medication is cleared from his body every 2 hours. How many milligrams of medication remain in his body at 8:00 p.m.?
1 year ago
Given the function f(x) = 6x^2, what is the value of f(a+b)-f(a-b)/ab when a and b are both positive?
1 year ago
The figure shows the beginning of a spiral created by starting with a semicircle of radius 1 unit and endlessly attaching semicircles that are each half the radius of the previous semicircle. What is the length of the whole spiral? Express your answer in...
1 year ago
Right triangle ABC has legs AB = 6 cm and AC = 8 cm. Square BCDE is drawn outside of the triangle along the hypotenuse. What is the area of triangle ADE?
1 year ago
What is 5+a/4 less then or equal to -7
1 year ago
Hal has a positive secret number. He performs a sequence of operations with his secret number. He doubles the number, subtracts 8, divides by 4, adds 2 and squares the result to get 25. What is Hal’s secret number?
1 year ago
Toni goes to a department store and buys two shirts marked the same price. She pays full price for the first shirt but gets a 40% discount on the second shirt. If she pays a total of $32.40 for the two shirts, how much did she pay for the second shirt?
1 year ago
The table lists the number of Wednesdays on which the Norton Middle School cafeteria served each of four different entrées and each of three different desserts during the previous school year. If the entrée and dessert served each Wednesday were selected...
1 year ago
How many integers x, with 0 < x ≤ 100, are divisible by 2, 3 and 4?
1 year ago
Two circles, each of radius 5 units, have centers at the origin and at (7, 7), respectively. What is the y-intercept of the line that contains their common chord?
1 year ago
How many ways are there to choose positive integers a, b and c, not necessarily distinct, so that a + b < c and c ≤ 5?
1 year ago
A company sells popcorn in cylindrical canisters. Marketing indicates that wider canisters will increase sales. If the diameter of the canister is increased by 27% while keeping the volume of the canister the same, by what percent must the height be decre...
1 year ago
If 11× n = 123,456,787,654,321, what is the value of n?
1 year ago
The point (4, −2) is reflected over the line y = x. What are the coordinates of its image? Express your answer as an ordered pair.
1 year ago
The ages, in years, of four members of a family are represented by a, b, c and d, where a < b < c < d. Their mean age is 34, their median age is 33, and the range of their ages is 32. What is the value of a?
1 year ago
What is the value of 32_4 + 43_5 + 54_6 when written in base 7?
1 year ago
Raquel uses six different digits to fill in the blanks below, writing one digit in each blank, so that the resulting addition statement is correct. What is the least possible sum of the six digits?
1 year ago
If a, b and c satisfy the equations a^2 + b^2 = 313, b^2 + c^2 = 277 and a^2 + c^2 = 302, what is the value of a^2 + b^2 − c^2?
1 year ago
A chess knight makes L-shaped moves on a grid of squares. During each move, the knight moves two squares either up, down, left, or right, then one square in a perpendicular direction. The knight starts on the square marked K in the 6-by-6 board shown here...
1 year ago
A chess club has 8 girls and 6 boys. Two members, Zig and Zag, are fraternal twins of different genders. If a team of 3 girls and 3 boys is randomly selected for the district championship, what is the probability that exactly one of the twins is on the te...
1 year ago
Triangle ABO is an isosceles right triangle, AC is a diameter of circle O, and AB is a diameter of circle D. If the semicircle centered at O has area 2π, what is the shaded area AEBF (which is called a lune)?
1 year ago
Each cell in the 3-by-3 array of squares shown is filled with a digit from 1 to 9, inclusive. If the four listed conditions are satisfied, what is the resulting three-digit number when diagonal B is read from upper-left to lower-right? (1) Each digit from...
1 year ago

Answers

The following answers were posted by visitors named Mystic.