Y = 6x - 4
basically, we just sub answer choices in to see which ones make the equation true.
answer is : (0,-4) , (1,2) , (3,14)
OK. I did it, and I have the solution.
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The length of the deck is (5 + 2x) .
The width of the deck is (4 + 2x) .
If the deck didn't have that big hole in the middle where the pool is,
then its area would be
(5 + 2x) · (4 + 2x) .
When you multiply that all out, you get Area = 4x² + 18x + 20
and the question tells us that the area of the whole big rectangle is 90 yds² .
So we can write
4x² + 18x + 20 = 90 .
Subtract 90 from each side: 4x² + 18x - 70 = 0
Divide each side by 2 : 2x² + 9x - 35 = 0
You can use the quadratic equation to solve that and find out that
x = 2.5 yards, and that's what the question is asking you.
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That makes the deck 10 yds high and 9 yds wide.
Total area of the whole big rectangle, (deck + pool ), = 90 yds².
Answer:
Quartic
Step-by-step explanation:
Given
Required
Name the polynomial
The question required that the polynomial be named based on its degree.
This implies that, we name the polynomial based on the highest power of x
Highest power of x = 4
When the highest power of x in a polynomial is 4, such polynomial is a quartic polynomial.
Hence, by degree; the polynomial is quartic
-6 = y/5 + 4
Step 1: Subtract 4 from each side of the equation.
Step 2: Multiply each side by 5.
If you don't arrive at the solution y= -50 , then return to Step-1
and repeat the process, being on the lookout for your mistake.
Answer:The answer is 1 and 3
Step-by-step explanation:
