Word Stuff
What is the acronym we use for the order of operations?
BEDMAS
What is 43?
4 x 4 x 4 = 16 x 4 = 64
What do all right triangles have?
A right angle.
Also acceptable, a hypotenuse
14 - 2 x 7
14 - 2 x 7 = 14 - 14 = 0
How many more classes do you have with Mr. Sherren?
0, today is my last day with you
What is the formula for the Pythagorean Theorem?
a2+b2=c2
Simplify 57 x 58 = ?
515
If a triangle has legs with lengths 6 and 8, what is the hypotenuse?
62 + 82 = 36 + 64 = 100 = 102
49 ÷ (3+4) + 52
49 ÷ (3+4) + 52
= 49 ÷ 7 + 52
= 49 ÷ 7 + 25
= 7 + 25 = 32
When is the Expression Clock Project due?
Next week Wednesday, November 12th
What does BEDMAS stands for.
Brackets, Exponents, Multiplication OR Division and Addition OR Subtraction?
Simplify (3)(square root 240)
(3)(square root 240) = (3)(square root 2 x 2 x 2 x 2 x 3 x 5) = (3)(2)(2)(square root 3 x 5) = (12)(square root 15)
If a right triangle has leg 16 and hypotenuse 20, what is the length of the other leg?
202-162=122
So the missing leg has length 125 + 14 ÷ 2 × 5
40
Did Pythagoras prove the Pythagorean Theorem?
No
What do I need to use to find a square root?
A radical
Simplify (2x3 ÷ 24x2)3
(2x3 ÷ 24x2)3 = 23x9 ÷ 212x6 = 2-9x3 = x3/29
If a right triangle has legs square root 3 and square root 4, what is the hypotenuse?
Square Root 7
What are the subjects that Mrs. Knox teaches?
Mrs. Knox teaches Math, Sowing and Cooking
Can you find the square root of a negative number?
No, you can never have a negative number under a radical.
After we simplify a radical we have (6)(square root 7), what was the radical before we simplified?
(6)(square root 7) = (2)(3)(square root 7) = square root 2 x 2 x 3 x 3 x 7
If a triangle has sides 4, 9 and 12, is it a right triangle?
42+92=16+81=97
122=144
These are not the same, so this is not a right triangle
What number is this room?
2045 or 2009