Answer:
x = 9
Step-by-step explanation:
Solve for x:
x^2 - 18 x + 81 = 0
Write the left hand side as a square:
(x - 9)^2 = 0
Take the square root of both sides:
x - 9 = 0
Add 9 to both sides:
Answer: x = 9
Answer:
the first one
Step-by-step explanation:
(-5+5) will equal 0. Because of the zero property no matter what you multiply it by it will equal 0. Same thing with (9-9)
The amount paid to the man in the first year given the total he received in four years is $3,700.
<h3>Equation</h3>
- Amount paid in the first year = x
- Amount paid in the second year = (x + 500)
- Amount paid in the third year = x + 500 + 500
= (x + 1000)
- Amount paid in the fourth year = x + 500 + 500 + 500
= (x + 1500)
Total payment = first year + second year + third year + fourth year
x + (x + 500) + (x + 1000) + (x + 1500) = 17,800
x + x + 500 + x + 1000 + x + 1500 = 17800
4x + 3000 = 17,800
4x = 17,800 - 3000
4x = 14,800
x = 14,800/4
x = $3,700
Therefore, $3,700 was paid to the man in the first year.
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Answer:
acute
Step-by-step explanation:
because it is 90 degree
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