The sum of b and f is b+f
Three times this sum is 3(b+f)
Answer:
22 grams
Step-by-step explanation:
loses 50% of it's mass per 22 years
so after 22 years the mass would be 44 grams
22 years later would leave 50% of 44 grams = 22 grams
Randomly assigned group. the art class isn't random and only consists of a select type of people--it is not a representative sample; maybe more left handed people enjoy art than do right handed people! therefore, even though the randomly assigned group is smaller, it is the better estimate.
Answer:
y = -½x + 1 <em>actually</em>
Step-by-step explanation:
First, find the rate of change [slope]:
-y₁ + y₂\-x₁ + x₂ = m

Then use the Point-Slope Formula since we are given points. Now, according to this formula, all negative symbols give the OPPOSITE terms of what they really are, so be EXTREMELY careful inserting the coordinates into the formula with their CORRECT signs. It does not matter which one you choose:
y - y₁ = m(x - x₁)
y - 2 = -½(x + 2)
y - 2 = -½x - 1
+ 2 + 2
_______________
y = -½x + 1 >> Line in <em>Slope-Intercept Form</em>
__________________________________________________________
y - 4 = -½(x + 6)
y - 4 = -½x - 3
+ 4 + 4
______________
y = -½x + 1 >> Line in <em>Slope-Intercept</em><em> </em><em>Form</em>
** You see? I told you that it would not matter which ordered pair you choose because you will always get the exact same result!!!
I am joyous to assist you anytime.
*** Maybe one of your answer choices are off?