She missed 3 questions,
11/100 equals x/26
^set up this proportion
you get 286 equals 100x
and x equals 2.86
round this to 3 questions
to check your work, do 23/26
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.
The negative---- positive
- 24 / - 4
24 / 4
6
<span>{(3, −2), (1, 2), (−1, −4), (−1, 2)}
Answer: {-4, -2, 2}
</span>
Answer:
Step-by-step explanation:
Given a circle Q represented by the equation:
Comparing with the standard form of the equation of a circle center (h,k) of radius r:
We have:
We take the square root to obtain the radius, r of the circle.
Since segment KL is a diameter of circle Q; and
Diameter =Radius X 2
Therefore: