A=-2;b=9;c=9;
delta=b^2-4*a*c
root1=(-b+(delta^(0.5)))/(2*a)
<span>root2=(-b-(delta^(0.5)))/(2*a)
delta =153
root1 = -0.8423
root2 =<span> 5.3423
Correct Answer is D</span></span>
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Zara has paper rectangles. Length and width of any rectangle is directly proportional.
<u>SOLUTION:
</u>
Given, Zara has paper rectangles of different sizes
Every rectangle is 5 cm longer than it is wide
We have to find that is there a proportional relationship between the length and width of these rectangles.
From the given information, length is 5 cm longer than width for any rectangle.
Then, length of rectangle = 5 + width of rectangle.
When we increase width of rectangle length also increases. From above equation.
Hence, length and width of any rectangle is directly proportional.
Answer:
The amount of time it takes Shelly to clean each house is 3.6 hours or 2 hours 36 minutes.
Step-by-step explanation:
Shelly cleans 5 different houses in 18 hours.
To compute the amount of times Shelly spends cleaning one house divide the total hours spend by the number of houses cleaned.
The number of hours it takes Shelly to clean a single house is:
Number of hours spent cleaning 1 house =
hours.
Thus, the amount of time it takes Shelly to clean each house is 3.6 hours or 2 hours 36 minutes.