2x^2 + 4x + 1 = 0
2x^2 + 4x + 1 - 1 = 0 - 1
2x^2 + 4x = -1
X(2x + 4) = -1
X = -1.
2x + 4 = -1
2x + 4 - 4 = -1 - 4
2x = -5
2x/2 = -5/2
X = -5/2.
I believe these are the solutions. If not you can use the quadratic formula to solve for the roots, solutions.
Answer: 32 sides
Step-by-step explanation:
Formula for interior angle of a polygon = ( n - 2 )180°, where n is the number of sides of the polygon
Now equate the formula to 5400°
( n - 2 ) × 180° = 5400°
open bracket by multiply by 180°
180n° - 360° = 5400°
180n° = 5400° + 360°
180n° = 5760
n = ⁵⁷⁶⁰/₁₈₀
n = 32
so the polygon has 32 sides
Answer:
480
Step-by-step explanation:
On Thursday there were 400 customers
1/5 of 400 =80
Increase Thursday's amount by 80
400+80 = 480
Friday has 480
<span>2500+150x=3000+125x
150x-125x=3000-2500
25x=500
</span><span>x=500/25
x=20 mo
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2500+150*20=3000+125*20
5500=5500 total paid after each month.</span><span>
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