The product of three integers x, x+2, and x-5 is 240. What are the integers?
1 answer:
Answer:
8, 10, 3
Step-by-step explanation:
For finding real solutions to cubic equations and those of higher degree, I find a graphing calculator to be useful. The problem can be cast in the form ...
f(x) = 0
where f(x) is the difference between the product of the integers and 240:
f(x) = x(x +2)(x -5) -240
Then all we need to do is ask the calculator to show the x-intercept. It is x=8.
So, the three integers are ...
- x = 8
- x+2 = 10
- x -5 = 3
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Answer: THERE ARE TWO WAYS OF DOING THIS!!
Key words: square, area, 200 square feet
Area: what × what = 200?
Step-by-step explanation:
A square has 4 sides, and all of its sides are of equal length.
So if a square has 4 sides, and its total area is 200 square feet, what do you have to do?
You have to divide the area by 4!
So 200 ÷ 4 = ?
200 ÷ 4 =50
So each side is 50 feet long.
In this scenario, there are no tenths because each side is exactly 50 feet. If you wanted the lengths to the nearest tenth, your answer would be 50.0
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OR
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If patio is a square, basically it says the area is where a is equivalent to one side of the square.
Now that we know that a = 200, we will be able to solve the expression
a=
a=14.1421, which is the square root of
Now we rounded to the nearest tenths
a≈14.1
We rounded to 14.1 because the rounding rule is: <em>4 and below rounds down, 5 and above rounds up.</em>
The result is 14.1
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I hope this helps!
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