here's the way that i learned it:
convert them to mixed fractions and then go from there.
3.6 = 36/10 0.5 = 1/2
right now our problem looks like this: 36/10 ÷ 1/2 =
okay, so i learned the method keep it, switch it, flip it.
keep the first fraction in the equation, 36/10
switch the division sign to multiplication ÷ ⇒ ×
switch the numbers on the second fraction 1/2 ⇒ 2/1
okay, so our equation looks like this now:
36/10 x 2/1
okay, so now multiply across. (multiply the top numbers together and the bottom numbers together)
72/10
latly, we need to convert back to a decimal. divide the top number by the bottom one.
to do this, divide the top number by the bottom number
72/10
7.2
<em>i hope this was helpful. this is how i learned dividing with decimals, so it might be kinda complicated. if you still need help, let me know :)</em>
Answer:
C.
Step-by-step explanation:
X equals 16
12+16=28
28 divided by 2 = 14
Answer:
see explanation
Step-by-step explanation:
Given the zeros of a polynomial, say x = a, x = b, x = c
Then (x - a), (x - b), (x - c) are it's factors
and the polynomial is the product of the factors
here x = 4, x = - 1, x = 6, hence
(x - 4), (x + 1) and (x - 6) are the factors
f(x) = a(x - 4)(x + 1)(x - 6) ← a is a multiplier
let a = 1, then expanding the first pair of factors
f(x) = (x² - 3x - 4)(x - 6) ← expand out the factors
= x³ - 3x² - 4x - 6x² + 18x + 24 ← collect like terms
= x³ - 9x² + 14x + 24
