A) The rate of change is -40 songs each week, that is because the amount of songs left to be downloaded decrease by 40 each week
B) lets use 2 points of the graph p1(0, 200), p2(1, 160)
calculate the slope:
m = (y2- y1)/(x2 - x1) = (160 - 200)/(1 - 0)
m = -40
now use line equation in form point-slope:
y - y1 = m(x - x1)
y - 200 = -40(x - 0)
y = -40x + 200
Number line 3..............
Answer:
-3/5
Step-by-step explanation:
the customary way to determine the slope of a linear equation such as this one is to solve the equation for y:
-3x-5y=15 becomes -5y = 15 + 3x after 3x is added to both sides of the original equation.
Solving both sides of this latest result by -5 results in
y = -3 - (3/5)x
The coefficient of x (which here is 3/5) is the slope of this equation.
So probility is (disired outcomes) divided by (total possible outcomes) so
1st one is white roses
8 white roses so 8 is disired
total=5+3+8=16
8/16=1/2
then without replacing them
red=5
total possible=16-1 since 1 picked
5/15=1/3
then multiply the probatilities
1/2 times 1/3=1/6
it is a 1 in 6 probability
<em>⇨ Again letting n be the number</em>
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<em>⇨ Subtract 13 from n</em>
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*unlike addition, the order DOES matter, because
Hope that helped
