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General
Rational ExponentExplain why the square root of a number is defined to be equal to that number to the 1/2 power.
General
7 months ago
What is the solution of the system? Use the substitution method.3x + 2y =11x − 2 = −4yA.The only solution is (12, −52) .B. The only solution is (4, −12) .C. There is no solution.D. There are an infinite number of solutions.
General
7 months ago
Maria and Edwin have $23.00 each to spend at a book fair, where all students receive a 25% discount. They both want to purchase a copy of the same book, which normally sells for $26.50 plus 10% sales tax. To check if she has enough to purchase the book, Maria takes 25% of $26.50 and subtracts that amount from the normal price. She takes 10% of the discounted selling price and adds it back to find the purchase amount. Edwin takes 75% of the normal purchase price and then computes 110% of the reduced price. Is Maria correct? Is Edwin correct? Do they have enough money to purchase the book? Explain your answer using complete sentences, and show your work.Help Me@SignoraPenguino
General
7 months ago
Two cars are traveling in the same direction. The first car is going 40 mi/h, and the second car is going 55 mi/h. The first car left 3 hours before the second car. Which equation could you solve to find how many hours it will take for the second car to catch up to the first car? A:55t +3= 40t, B: 55t+165=40t, C: 40t+3= 55t, D:40t+120= 55t plz show your work
General
7 months ago
The area of a circular pool cover is 314 square feet. Write and solve an equation to find the diameter of the pool cover. Use 3.14 for pie.
General
7 months ago
If f(x) is the total number of bacteria present in a sample after x hours , which of the following statements best describes the meaning of f(2)=12 A. The total number of bacteria present in a sample after 12 hours is 2. B. The total number of bacteria present in the sample after 6 hours is 12. C. The total number of bacteria present in the sample after 2 hours is 12. D. The total number of bacteria present in the sample after 6 hours is 12.
General
7 months ago
Which statement describes a parallelogram that must be a square? A. A parallelogram with a pair of congruent consecutive sides and diagonals that bisect each other. B. A parallelogram with a pair of congruent consecutive sides and diagonals that are congruent.C. A parallelogram with a right angle and diagonals that are congruent D. A parallelogram with diagonals that bisect each other.
General
7 months ago
the sum of two numbers 18 and their difference is 4. what are the two numbers?
General
7 months ago
What is the value of x? Enter your answer in the box.
General
7 months ago
Drinks at the fair cost 2.50$ use an equation to represent the relationship between the numbers of drinks bought ad the cost define your variable and make a table to help write the equation
General
7 months ago
1. Main Show Tank Calculation:The main show tank has a radius of 60 feet and forms a quarter sphere where the bottom of the pool is spherical and the top of the pool is flat. (Imagine cutting a sphere in half vertically and then cutting it in half horizontally.) What is the volume of the quarter-sphere shaped tank? Round your answer to the nearest whole number. 2. Holding Tank Calculations:The holding tanks are congruent. Each is in the shape of a cylinder that has been cut in half vertically. The bottom of each tank is a curved surface and the top of the pool is a flat surface. What is the volume of both tanks if the radius of tank #1 is 30 feet and the height of tank #2 is 110 feet?3. The company is building a scale model of the theater’s main show tank for an investor's presentation. Each dimension will be made ⅛ of the original dimension to accommodate the mock-up in the presentation room. What is the volume of the smaller mock-up tank?4. Using the information from #4, answer the following question by filling in the blank: The volume of the original main show tank is ____% of the mock-up of the tank.
General
7 months ago
John buys big ice-cream cylindrical Jar and sells it for $1.each ice-cream cone. Each cone has around 30 cubic cm of ice-cream in it. Jar has diagonal 20 cm. and its height is 3 times of width. If he sells the whole jar, and He originally bought it for $7 does he make profit out of selling the jar?
General
7 months ago
A long strand of spaghetti is folded once. If this cut 20 times, how many pieces of spaghetti will there be?
General
7 months ago
find the point (x,y) of x^2+14xy+49y^2=100 that is closest to the origin and lies int he first quadrant
General
7 months ago
a group of students were surveyed about their taste in music. They were asked how they like three types of music: rock, country western and jazz. The results are summarized belowNo one dislikes all three. Six like all three. Eleven don't like country western. Sixteen like jazz. 3 like country western and jazz but not rock. 6 don't like rock. 8 like rock and country western. 7 don't like jazz. how many students were surveyed?
General
7 months ago
Brett can plow out all the driveways on his street with his new four-wheel-drive truck in 2 hours. using a snow blade on a lawn tractor, his neighbor can plow out the same number of driveways in 6 hours. how long would it take them to do the work together?
General
7 months ago
Assume that dusty has $30 in income, the price of a loaf of bread is $1.50, and the price of a jar of peanut butter is $3. at the original income of $30, if the price of a loaf of bread decreased to $1 and the price of a jar of peanut butter increased to $5, then dusty could buy a maximum of ______ loaves of bread or a maximum of ______ jars of peanut butter.
General
7 months ago
1:The first time a census was taken in Esinville, the population was 12,621. Each year after that, the population was about 6% higher than it was the previous year.Sketch the graph that represents the situation. Let x represent the number of years since the first census was taken.What are the coordinates of the point that contains the y-intercept?(0, 12,621)(12,621, 0)(1, 12,621)(12,621, 1)2:Doug buys a pint of strawberries every week. The first time he bought them, they cost $2.60. He notices the price is getting more expensive, at a rate of 7% per week.Doug sketches a graph of the situation.Which statements are true?Select each correct answer.The graph decreases from left to right.The point (0, 2.60) is on the graph.The graph has a y-intercept only.The graph has an x-intercept and a y-intercept.The point (2.60, 0) is on the graph.The graph increases from left to right.3:A scientist performed an experiment with a radioactive substance whose half-life is 22 min. The scientist will sketch a graph of the situation, where x represents the time since the scientist first measured the substance, and y represents the amount of radioactive substance remaining at that time.The scientist will only sketch the graph in the quadrant or quadrants for which it makes sense to.In which quadrant or quadrants will the scientist sketch the graph?Quadrants I, II, III, and IVQuadrants I and II onlyQuadrant I onlyQuadrants I and IV only4:The graph represents the atmospheric pressure, in ounces per square centimeter, as a function of altitude in kilometers above sea level.Which statements accurately reflect this relationship?Select each correct answer.The atmospheric pressure gets close to 36 oz/cm2 as the altitude continues to increase.The atmospheric pressure is 0 oz/cm2 at sea level.As the altitude continues to increase, the atmospheric pressure approaches 0 oz/cm2 .As the altitude decreases, the atmospheric pressure increases.5:The graph shows the total monthly sales as a function of the number of cake tiers.Which statement is true?As the number of cake tiers increases without bound, the total monthly sales increase without bound.As the number of cake tiers decreases, the total monthly sales increase without bound.As the number of cake tiers increases without bound, the total monthly sales decrease without bound.There is no limit to the number of cake tiers, but there is a limit to the total monthly sales.
General
7 months ago
Which statement best reflects the solution(s) of the equation? √3x+1 −x+3=0 (note it's the square root of 3x+1) a. There is only one solution: x = 8. The solution x = 1 is an extraneous solution. b. There is only one solution: x = 8. The solution x = 0 is an extraneous solution. c. There is only one solution: x = 1. The solution x = 8 is an extraneous solution. d. There are two solutions: x = 1 and x = 8.
General
7 months ago
A FRIEND GAVE MS.MORRIS A GIFT CARD FOR A LOCAL CAR WASH. THE TABLE SHOWS THE LINEAR RELATIONSHIP OF HOW THE VUALE LEFT ON THE CARD RELATES TO THE NUMBER OF CAR WASHES
General
7 months ago
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