this week in math 10, i learned how to find the volume and surface area of a sphere, to find the SA (surface area) you do 4 times /pi times the radias squared. to find the volume you multiply by 4 over 3 by /pi then you multiply it by the radius cubed.
a question i had a problem with was question 9 of lession 9 where you have to find the diameter when you only have the volume, when i got help with it i realized it is super easy you just divide by the first part of the formula (the 4 over 3 and /pi) then you square root the answer to find the radius then multiply it by 2 to find the diameter.
this week in math 10, i learned how to find the surface area of a triangular prism and also all the unit conversions. unit conversions are the thing you need to know most for this unit so it is very important, it tells you the formula you use to convert one measurment into another. to find the surface area of a triangular prism you first find the sum of the area of all the sides, this involves using Pythagorean Theorem and multiplying, the formula for finding the surface area of a triangular prism is 2 times b time height divided by two plus legth time width times legth time width time legth time width then you fill in the spots with the correct numbers and do the equation, then you have your answer.
this week in math 10, one thing i learned was the zero exponent law. the zreo exponent law is when the exponent is zero the number is automatically changed to 1. this is because you have no coppies of the number and there is an imaginary one infront of every number.
this week in math 10 i learned all the laws of exponents. there are 5 laws, multiplication, division, power of power, zero exponent law and negative exponents law. the multiplication exponent law (M) is, you add the exponents when the base is the same, the division exponent law (D) is similar, we subtract the exponents when the base is the same. the power of a power exponent law (PP) tells us to multiply exponents by the exponent of the bracket, and you only multiply the exponents inside the bracket. the zero exponent law (Z) is, when the exponent of the number is zero the number becomes 1 no matter what. the fianl rule is the negative exponent law (N) this tells us that when the exponent is negative you find the reciptical and the exponent become posative.
this week in math 10, 1 thing i learned was converting mixed radicals into entire radicals. to do this the first thing you have to do is square the coefficient, then multiply it with the radicand that is all.