Question

Please help! I need to know if I am correct.


A lever acts like a fulcrum to help lift heavy objects. The formula for the placement of the fulcrum is f1 · d1 = f2 · d2 where f1 = force applied at one end, d1 = distance of the first force from the fulcrum, f2 = force applied at the other end, and d2 = distance of the second force from the fulcrum. Rewrite this formula to solve for d1. Show all steps in your work.

F1 * D1 = F2 * D2
F1 * D1/F1 = F2 * D2/F1
D1 = F2 * D2/F1

Answer 1

@Hero @mathslover @dan815 @hartnn @eliassaab @amistre64 @abb0t

Answer 2

It's correct ^^

Answer 3

ok how bout this one


Ohm’s Law states that the voltage across a wire is given by the formula V = IR where V = voltage, I = amperage, and R = resistance. Solve V = IR for R, and use your formula to determine the resistance needed to produce 110 volts at 10 amps. Show all steps in your work.

V = IR
V/I = RI/I
R = V/I

110 = 10R
110/10 = 10R/10
R = 110/10
11 = R

Answer 4

yup

Answer 5

ok thx