All Tasks

Find the value_1

Evaluate the following algebraic expression if $x=-2$ and $y=-3$ $A=\frac{x+3}3-2\frac{y+2}5$
 
# Equations & Inequations

Training
8

Simplification of algebraic expression_1

If we simplify the following algebraic expression $A= 2x+3y+7-3x+5x-3+7y$ into the form $ax+by+c$, where the $a,b$ and $c$ are rational numbers, the A is
 
# Linear equations

Training
8

Chain rule arcsin

Determine the equation of the normal line to the graph of $y(x)=6\arcsin(f(x))$ at $x=0$, knowing that $f(0)=0.5$ and $f'(0)=1$
 
# Functions of one variable

Reasoning
13

Differential - approximate arcsin

Use differential to approximate the change in $y=\arcsin(1-x)$ when $x$ changes from $1$ to $0.95$.
 
# Functions of one variable

Reasoning
13

Translation of the verbal expression into algebraic expression_1

The following verbal expression: In a number we add five and then we add the triple of him. The translation of this verbal expression into an algebraic expression is:
 
# Terms with variables

Reasoning
8

Overtime

Kev and Doug are drivers of a parcel service. Last month Kev get 875€ extra for 35 hours overtime working during a month. Calculate how many money Doug get in that month for 24 h overtime working, when he get the same money per hour.
 
# Direct proportionality & rule of three

Modeling
8