On a workday, the average decibel level of a busy street is 70 db, with 100 cars passing a given point every minute. if the number of cars is reduced to 25 every minute on a weekend, what is the decibel level of the street? Question solved general 4 months ago 4020
Earth has a radius of 3959 miles. A pilot is flying at a steady altitude of 1.8 miles above the earth's surface.What is the pilot's distance to the horizon?(no pic)Enter your answer, rounded to the nearest tenth, in the box.____ mi Question solved general 4 months ago 3745
This figure is made up of a triangle and a semicircle. What is the area of the figure?Use 3.14 for π.Enter your answer, as a decimal, in the box.___units² Question solved general 4 months ago 1607
Your school is painting the shop room. it measures 30 feet by 100 feet and has a ceiling that is 12 feet tall. paint costs $14.75 and a gallon covers 400 feet. what is the wall area of the room? 1,560 square feet 3,120 square feet 2,920 square feet 2,860 square feet Question solved general 4 months ago 6536
An urn contains 3 red and 7 black balls. players a and b withdraw balls from the urn consecutively until a red ball is selected. find the probability that a selects the red ball. (a draws the first ball, then b, and so on. there is no replacement of the balls drawn.) Question solved general 4 months ago 8265
One number is the square of another. their sum is 182. find the numbers. Question solved general 4 months ago 1097
Write the equation for the parabola that has x− intercepts (1.2,0) and (4,0) and y− intercept (0,12). Question solved general 4 months ago 2208
Gabe is the human resources manager for the Advanced Scientific Research Lab. He has to recordthe heights (in centimeters) and weights (in pounds) for each of the scientists in the lab.What are the medians for the height and weight distribution, respectively?A. 170, 179B. 183, 167C. 167, 183D. 179, 170E. 165, 175 Question solved general 4 months ago 1787
English is spoken as the first or primary language in 78 more countries than farsi is spoken as the first language. together, english and farsi are spoken as a first language in 130 countries. in how many countries is english spoken as the first language? in how many countries is farsi spoken as the first language? Question solved general 4 months ago 9247
An open-topped glass aquarium with a square base is designed to hold 13.513.513, point, 5 cubic feet of water. what is the minimum exterior surface area of the aquarium? Question solved general 4 months ago 5766
A manager records the number of hours, X, each employee works on his or her shift and develops the probability distribution below. Fifty people work for the manager. How many people work 4 hours per shift? Probability DistributionHours Worked: XProbability: P(X)30.14?50.1460.370.3680.060124 Question solved general 4 months ago 8598
Which fraction can be replaced with 1/2 when estimating with fractions?A 10/12B 7/16C 2/9D 1/8 Question solved general 4 months ago 9942
Will give brainliest for right answers please help 1. Which quadrant contains -11pi/18 and what is the reference angle?A) Quadrant 2, 7pi/18B) Quadrant 3, 7pi/18C) Quadrant 2, 11pi/18D) Quadrant 3, 11pi/182. Which of the following angles as a reference angle of 30°?A) 120°B) 150°C) 240°D) 315°3. Find tan, given that sin = -4/5 and cos > 0A) -5/3B) -4/3C) 3/5D) 5/44. Suppose x is an angle in standard position with cos > 0. In which quadrant(s) could the terminal side of x lie? Select all that apply.A) Quadrant 1B) Quadrant 2C) Quadrant 3D) Quadrant 45. Which of the following trigonometric ratios has a value that is undefined?A) cot 2B) sec 3pi/2C) tan piD) csc pi/2 Question solved general 4 months ago 1380
A fair coin is tossed 28 times. what is the probability that at most 25 tails occur? Question solved general 4 months ago 3058
A field is 150 yards long and 90 yards wide. find its area in square feet. Question solved general 4 months ago 6861
Tim can paint a room in 6 hours. Ben can paint the same room in 4 hours. How many hours would it take Tim and Ben to paint the room while working together? Question solved general 4 months ago 4174
According to the information that comes with a certain prescription drug, when taking this drug, there is a 20% chance of experiencing nausea (n) and a 50% chance of experiencing decreased sexual drive (d). the information also states that there is a 15% chance of experiencing both side effects. what is the probability of experiencing neither of the side effects? Question solved general 4 months ago 9079
For a nonnegative integer $n$, let $r_9(n)$ stand for the remainder left when $n$ is divided by $9.$ For example, $r_9(25)=7.$ What is the $22^{\text{nd}}$ entry in an ordered list of all nonnegative integers $n$ that satisfy $$r_9(5n)\le 4~?$$(Note that the first entry in this list is $0$.) Question solved general 4 months ago 6872
Consider the function y=f(x)=3^xthe values of f(1/2) and of (1/4), rounded to the nearest hundredth, are _____ and _____, respectively. Question solved general 4 months ago 7334
What is the y-intercept of the function,represented by the table of values below? Question solved general 4 months ago 8883