Express 1/(2+3i) in the form a+bi
What is 2/13-1/13i
Given a right triangle ABC, where a=6 and c=10 solve for side b.
What is b=8?
The sum of the infinite series: 24-12+6-3+...
What is 16?
I add 6 to 11 and get 5. I am right. Why?
100 degrees in simplest form in radians.
What is 5pi/9 radians?
Evaluate i^17
What is i?
Given a right triangle ABC, A=28 degrees and a=40ft, find the length of side b to the nearest ft. (The hypotenuse is side c)
What is 75 ft?
Find the third, fourth, and fifth term of the sequence defined by:
t1=1 ;tn=t(n-1)+2n-1
What is 9, 16, 25?
Using only 8's use addition to get 1000.
What is 888+88+8+8+8?
Some days you are positive, some days you are negative... Find two angles that are coterminal with 8pi/3, one being positive one being negative.
What is 14 pi/3 and -4pi/3?
An equation of the line through (6,-2) and (-3,1)
What is x+3y=0
At a distance of 100m the angle of elevation to the top of a fir tree is 28 degrees. Find the height of the tree to the nearest meter.
What is 53 m?
There are this many numbers that are multiples of 6 between 28 and 280.
What is 42 numbers?
Parking spots in the lot are ordered
16 06 68 88 __ 98.
You are parked in the blank space, what is your number.
The terminal ray of theta passes through (-3,2) find sin and cos of theta
What is sin theta =(2 rad13)/13 and cos theta=(3rad13)/13
Find the vertex of the parabola y=2x^2-8x+5
What is (2,-3)
The highest tower in the world is in Toronto at 553m high. You are standing 100 m away from the base of the building. Find the angle of elevation of you looking up to the top of the tower to the nearest degree.
What is 80 degrees?
Find the first four terms of the sequence defined:
tn=sin ((npi)/2)
When Linda was 6 years old, her sister Lily was half her age.
If Linda is 40 today, how old is her sister?
What is 37 years old?
The reference angle of -3pi/4.
What is pi/4?
Find where the line y=2x+5 intersects the parabola y=8-x^2
x=-3 or x=1
Two sides of a triangle have lengths 7cm and 4cm. The angle between them is 73 degrees. Find the area of the triangle to the nearest square cm.
What is 13cm^2?
Find the 101st term of the arithmetic sequence defined by:
t1=76 t3=70
What is -224?
The smallest whole number that is equal to 7 times the sum of its digits.
What is 21?
The exact value of csc(-pi)
What is undefined?