Hey, can you a girl out? here’s the questions and the multiple choice answers:
“rectangle a measures 12 cm by 3 cm. rectangle b is a scaled copy of rectangle a. select all the measurement pairs that could be the dimensions of rectangle b.
a. 6 cm by 1.5 cm
b. 10 cm by 2 cm
c. 13 cm by 4 cm
d. 18 cm by 4.5 cm
e. 80 cm by 20 cm
if you can answer this and if you saw this!

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

What is the square root of 4/9? explain the steps. you!

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.