Step-by-step explanation:
a) clearly, the sequence is created by subtracting 12 from one term to the next.
so, d = -12
a (= a1) = -5 (the first term is the start value)
the next 3 terms are then
-41, -53, -65
a28 = -5 + 27×-12 = -329
b) the sequence is created by adding 6 from term to term.
so, d = 6
a (= a1) = 8
the next 3 terms are
26, 32, 38
a77 = 8 + 76×6 = 464
Answer:
288
Step-by-step explanation:
Where does that StartFraction ... mess come from? -- I've seen it in other questions.

Comparing that to the general quadratic formula

we see b=-10 (agreeing in both places) a=7 (two places), c=-2
Answer: 7x² - 10x - 2 = 0
5/6 + 3/4
5/6 = 10/12
3/4 = 9/12
10/12 + 9/12 = 19/12 = 1 7/12 pounds total
Answer:
39.6
Step-by-step explanation:
Given in the right angled triangle above are:
Ѳ = 49°,
Adjacent length = 26
Hypotenuse length = x
To find x in the right angled triangle given above, apply the trigonometric formula, cos Ѳ = adjacent length/hypotenuse length
Thus,

Multiply both sides by x



Divide both sides by 0.6561 to find x




x = 39.6 (to nearest tenth)