what ones match?
1. commutative property of multiplication
2. identity property of multiplication
3. distributive property
4. associative property of multiplication
5. commutative property of addition
6. inverse property of addition
a. 8 + 34 = 34 + 8
b. (a • 5) • 3 = a • (3 • 5)
c. 5x - 3(2 - z) = 5x - 6 + 3z
d. 1n=n
e. 5 + (-5) = 0
f. mp=pm

The parking lot of a store has the shape shown. all angles are right angles. what is the area of the parking lot?

Solve the equation for x. 50(4x + 12) = 200

Ece 202: problem set 1 due: june 14, 2019 (friday) the first 3 questions of this homework assignment covers some fundamental mathematical concepts that will play a role in this course. the remaining questions are on basic signals and laplace transforms. 1. a review of complex numbers. (a) compute the magnitude and the phase of the complex numbers −4 +j, and write them in polar form (i.e., of the form rejθ). also, plot the complex number in the complex plane. (b) simplify the complex number 1 4 − √ 1 2 − j √ 2 22 and write them in cartesian form. (c) consider the complex number s = z1z2 · · ·zm p1p2 · · · pn , where each zi is a complex number with magnitude |zi | and phase ∠zi , and each pi is a complex number with magnitude |pi | and phase ∠pi . write the magnitude and phase of s in terms of the magnitudes and phases of z1, z2, . . , zm, p1, p2, . . , pn. 2. a review of differentiation. (a) find df dx for the following functions. i. f(x) = (1−4x) 2 √ x . ii. f(x) = √ 1 + tan x. (b) find dy dx for the equation e x sin y + cos2 x cos y − x 3 = 0.