The resistance (R) in a direct current circuit varies directly with the voltage (E) and inversely with the current) Which equation represents this situation?
A-R= EI
B-R= E-I
C-R= I/E
D-R= E/I

How can you find the conditional probability of a given b as the fraction of b’s outcomes that also belong to a, and interpret the answer in terms of the model? i just need a good explanation

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Find the percent error of the measurement 4 cm