Mathematics, 14.04.2021 23:10 njood3113
a searchlight uses parabolic reflectors to project their beams of light. the reflectors open upwards. The distance between the vertex and the focus is 1.2 meters. Write an equation that model a cross section of the reflector
Answers: 2
Mathematics, 21.06.2019 13:00
Solve the system by the elimination method. 3x - 2y - 7 = 0 5x + y - 3 = 0 to eliminate y, the lcm is 2. which of the following is the resulting equations? 1.3x - 2y - 7 = 0 5x + y - 3 = 0 2.3x - 2y - 7 = 0 -10x - 2y + 6 = 0 3.3x - 2y - 7 = 0 10x + 2y - 6 = 0
Answers: 1
Mathematics, 21.06.2019 18:00
Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?
Answers: 1
Mathematics, 21.06.2019 22:00
You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?
Answers: 3
a searchlight uses parabolic reflectors to project their beams of light. the reflectors open upwards...
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