Answer:
an = −1,171,875(1/5)^n-1
Step-by-step explanation:
The given sequence is geometric sequence since they have the same common ratio r. The nth term of a geometric sequence is expressed as;
an = ar^n-1
n is the number of terms
r is the common ratio
a is the first term
From the sequence;
a = −1,171,875
r = −234,375 /−1,171,875 = -46,875/−234,375 = 0.2
r = 1/5
Substitute the values in the formula;
an = −1,171,875(1/5)^n-1
Hence the required explicit formula is an = −1,171,875(1/5)^n-1
X + y = -30
xy = 62
x + y = -30
- x - x
y = -x - 30
xy = 62
x(-x - 30) = 62
x(-x) - x(30) = 62
-x² - 30x = 62
- 62 - 62
-x² - 30x - 62 = 0
-1(x²) - 1(30x) - 1(62) = 0
-1(x² + 30x + 62) = 0
-1 -1
x² + 30x + 62 = 0
x = -(30) ± √((30)² - 4(1)(62))
2(1)
x = -30 ± √(900 - 248)
2
x = -30 ± √(652)
2
x = -30 ± 2√(163)
2
x = -15 ± √(163)
x = -15 ± 12.76
x = -15 + 12.76 or x = -15 - 12.76
x = -2.24 or x = -27.76
x + y = -30 or x + y = -30
-2.24 + y = -30 or -27.76 + y = -30
+ 2.24 + 2.24 + 27.76 + 27.76
y = -27.76 or y = -2.24
(x, y) = (-2.24, -27.76) or (x, y) = (-27.76, -2.24)
The two numbers that add up to -30 and multiply to 72 are -2.24 and -27.76.
Answer:second option
Step-by-step explanation:
Answer:
13p
Step-by-step explanation:
Add 7 + 6.
=13
13 + p = 13p
13p is the simplified answer.
∑ Hey, corah905 ⊃
Answer:
x = -2/3
Step-by-step explanation:
<u><em>Given:</em></u>
<u><em></em></u>
<u><em>Solve:</em></u>
<em>Multiplying both sides by 2:</em>
<em />
⇒
Distribute:
Add 8 to both sides:
⇒
Subtract 6x from both sides:
Divide both sides by -12
⇒
<u><em>xcookiex12</em></u>
<em>8/31/2022</em>
<em>#Learn with Brainly~</em>