Multiply the two brackets together
(3-21)(3+21)
(3)(3)(3)(+21)(-21)(3)(-21*21)
9+63-63-441
- 441 because whenever multiplying a - negative number and a + positive number = - negative number
9-441
= -432
Answer: -432
Answer:
B
Step-by-step explanation:
Took quiz
The slope (9) is the amount of money you earn per hour, hence multiplying the amount by h, hours.
I've included a picture of the graph below.
R = ?
L = 3.1 m;
r = 1.7 mm/ 2 = 0.85 mm = 0.85 * 10^(-3) m
Resistivity of copper ( rho ) = 1.68 * 10 ^(-8) [Ohm m ]
A = 3.15 * ( 0.85 * 10^(-3))^2 = 2.26865 * 10 ^(-6)
R = ( Rho ) * L / A = 1.68 * 10^(-8) * 3.1 m / 2.26865 * 10^(-6) =
= (1.7 * 3 .1 / 2.26865 )* 10^(-2) = 0.02323 Ohms ( the resistance )
Answer
I think 55 times
Step-by-step explanation:
13,200/1,200 = 11
5/1200 = x/13,200
so if 1,200*11=13, 200 then 5*11= 55.
btw , could u give me the brainliest if i am right?
