Mathematics, 03.01.2020 00:31 SKYBLUE1015
The points (2,-4), (x, y). a, and b all lie on the line. find an equation relating x and y.
Answers: 3
Mathematics, 21.06.2019 17:00
Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90Β° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, β6) is rotated 90Β° counterclockwise. (x, y) β (βy, x) 1. switch the x- and y-coordinates: (6, β3) 2. multiply the new x-coordinate by β1: (6(β1), β3) 3. simplify: (β6, β3) .
Answers: 1
Mathematics, 21.06.2019 23:50
4. (10.03 mc) the equation of line cd is y = β2x β 2. write an equation of a line parallel to line cd in slope-intercept form that contains point (4, 5). (4 points) y = β2x + 13 y = negative 1 over 2 x + 7 y = negative 1 over 2 x + 3 β 2x β 3
Answers: 2
Mathematics, 22.06.2019 00:00
Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?
Answers: 3
The points (2,-4), (x, y). a, and b all lie on the line. find an equation relating x and y....
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