A superconducting "bullet" train is researched and tested on a track. The steepest section of the track has a rise of 2480 meters for a horizontal distance of 2480 meters 6200 meters. What is the grade of this section of track? 6200 meters The grade is %.

Q: line plot represents the amount of baking soda a baker needs for different recipes. The baking soda…

A: We have to find that how many recipes call for 1/4 pounds or less.

Q: A car travels 20 kilometers per hour faster than a second car. The first car covers 180 kilometers…

A: let the time spend in tavel is t hoursif the speed of car 1 is S1aand speed of car 2 is S2 then…

Q: The ladder of a straight slide in a playground is 6 feet high. The distance along the ground from…

A: Let's draw above scenario: AB is the length of the ladder as straight slide BC is the distance…

Q: 8) B = {, x ,x²} end Be {2x^-x, 3x°41, x's are the beses for Pz [R). Find the metrices Is? B2 f…

A:

Q: (-8,6);slope = 1/4

A: The points is (-8,6) The slope is 14

Q: Driving down a​ mountain, Bob Dean finds that he descends 4600 feet in elevation by the time he is…

A: Given, Bob Dean descends 4600 feet in elevation by the time he is 4.4 miles​ (horizontally) away…

Q: 9.) In the morning, a fish was swimming at 43 feet below sea level. In the afternoon, it was…

A: It is a simple arithmetic problem and I used simple calculation to determine the change in…

Q: Suppose you are a radar technician at an airport. You measure a plane going 427 mph at an elevation…

A: Given, Suppose you are a radar technician at an airport. You measure a plane going 427 mph at an…

Q: Helmut can paddle in still water at a speed of 4 km/h. If he paddled 10 km upstream against the…

A: This problem is related to river section of algebra. And we solve this using distance-time formula.

Q: What is the slope of the line through (1, 0) and (3 , 8)? Choose 1 answer: 1. 4 -4 4 D 4 B.

A: We know that Slope=(Y2-Y1)/(X2-X1)

Q: Find rate and then the average revenue.

A: Given, the revenue (in dollars) from the sale of x belts is given by

Q: A submarine travels at elevation of 75 3/4 ft relative to sea level then it’s elevation changes by -…

A: This is elevation problem

Q: A submarine is 1,275.5 feet below sea level. It dives down 215.5 feet and then rises 125.5 feet.…

A: We have to find elevation of submarine where it is given that: Submarine is 1,275.5 feet below sea…

Q: car is worth $5600 when it is 7 years old and $4500 when it is 11 years old. What is a formula, in…

A:

Q: 2) Use Lagrange multipliers to find all extreme values of f (x, y,z)= 2x+2y+z subject to x + y² +z²…

A:

Q: Find the distance between (-1.509, 1.15) and (-1.891, 0.996). What is the time traveled if 1 unit=…

A: By applying distance formula

Q: A distance was measured on an 8% slope and found to be 2620.30m. What is the horizontal measured in…

A: To find horizontal distance: We know that , Horizontal distance = (rise * 100)/(slope%)

Q: what is the elavation of 18 feet below sea level

A: we have to find what is the elavation of 18 feet below sea level.

Q: A diagonal walkway cuts through two parallel streets. What is the value of x? В. 90° С. 116° Street…

A:

Q: The line plot shows the number of different colors that art students used in a colored-pencil…

A: We need to find art students who use fewer than 7 colors which means less than 7.Here less than 7…

Q: The rate of the jet streams is 100 miles ph. Travelling  with a jet stream,an airplane can  fly 1200…

A: To find the average rate of airplane in calm air  Given : The rate of the jet streams is 100 miles…