is the same as picking from a points set hmmm, notice the table is an x,y table, so we can just pick any two points to get the slope and thereby the equation.
3)
let's use (100, 36.5) and (300, 106.5)
4)
and for this one let's pick say (35, 88) and (45, 82)
Answer:
the first one i think or the third
Step-by-step explanation:
Answer:
Step-by-step explanation:
Since the sale price is always less than the original, we take the original and subtract from it the percent off to give us the sale price. Putting that into equation form:
s = r - .10r
which says, in words, that the sale price is equal to the regular price minus 10% of the regular price.
The question tackles about arithmetic sequence.
Arithmetic sequence has the formula:
an<span> = a</span>1<span> + (n – 1)d.
</span>where
an = number at nth term
a1 = 1st term
n = number of terms
d = common difference.
an<span> = a</span>1<span> + (n – 1)d.
</span>a1 = -10
d = -2
n = 10
a2 = -10 + (2-1) -2
a2 = -12
if we continue until a10, the sequence will be
-10, -12, -14, -16, -18, -20, -22, -24, -26, -30
The three angles of a triangle always add to 180, do the 2 congruent angles must measure 180-120=60. this number must be divided in two since the angles are congruent, so 60/2=30.
[email protected], as needed. so the equation to find x, the size of the congruent angles, would be
x=(180-120)/2