Given $i=\sqrt{-1}$, $\dfrac{i-2}{i}$ is equal to
- $\quad -1 – 2i$
- $\quad -1+2i$
- $\quad -2-i$
- $\quad 1-2i$
- $\quad 1+2i$
Online Resource for ACT Math
For all $\theta$, the expression $\csc^{2} \theta \tan^{2} \theta – 1 $ is equivalent to:
Try this ACT math practice question on exponents and scientific notation:
Given $a$ and $b$ are positive integers, what is $\dfrac{60 \times 10^a}{3 \times 10^b}$ expressed
in scientific notation?
Practice Test #1: Question 59 Mathematics
In scalene triangle $\triangle GHI$ shown below, point $J$ lies on side $\overline{HI}$, $\overrightarrow{GJ}$ bisects $\angle HGI$ such that $\angle HGJ$ and $\angle IGJ$ each measure $\theta$, and the given lengths $a$, $b$, $c$, $d$, and $e$ are in inches and are distinct. For all possible values of $\theta$, the area of $\triangle GHJ$ is what fraction of the area of $\triangle GHI$ ?