Algebra
Find the value of x:
(2x+x)/2=3
"What is, x is equal to 2"
Find:
The formula of Pythagorean theorem.
"What is (a^2)+(b^2)=(c^2)"
Another phrase for even chance.
"What is fifty fifty"
Round to 2 decimal places:
(Pi)
"What is 3.14"
Simplify:
5^3
"What is 125"
Simplify the expression:
5x+2y+2x+3+2y+7
"What is 7x+4y+10"
A Pythagorean triad or a Pythagorean triple is "3, 4, 5" the next smallest different Pythagorean triple family is:
"What is 5, 12, 13"
If I flipped a coin and the first one landed on heads, find the chance that the second coin lands on heads too.
"What is 1/2"
Find:
4!
"What is 24"
Find:
5*5^3
"What is 5^4" or "What is 625"
Find the value of x:
(x-3)(x+5)=0
"What is x=3 or x=-5"
Provide the formula for a trapezium.
Answers may vary.
If I flip a coin 5 times in a row find the chance that they all land on heads.
"What is 1/32" or "What is 0.03125"
Find:
2 (tetrated) to 3
"What is 16"
Find:
5^0
"What is 1"
Simplify:
(x+3)(x-3)
"What is (x^2)-9"
If Circumference = (pi)*D, rearrange the formula making the diametre the subject.
"What is D=C/(Pi)"
In a lottery game, each lottery ticket has a 2% chance of winning. If a man buys 10 tickets find the probability that at least one of them wins. Round the answer to 1 decimal place in percentage form.
"What is 18.3%"
Working out:
=1–(1–0.02)^10
=1–(0.98)^10
=1-0.81707
≈0.1829
≈18.3%
Find how many seconds are in an hour.
"What is 3600 seconds"
Simplify:
(x^2*x^3)/(2x*x)
"What is (x^3)/2"
Using algebra explain why 0.999... is equivalent to 1.
"What is:
x=0.99...
10x=9.99...
10x-x=9
9x=9
x=1"
Use a method to prove Pythagoras' theorem, the proof must include 4 right angled triangles with side lengths "a" and "b", a square with side lengths of "a", a square with side lengths of "b", and a square with side lengths of "c".
Explain and draw your response on an available whiteboard.
Answers may vary.
If X has 2 children and one child is a girl, find the probability that the other child is a boy.
"What is 2/3"
Find the first perfect number.
"What is 6"
Find and round to 1 decimal place:
(1/4)^2
"What is 0.1"