Factoring x^2-4x-21=0
1 answer:
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For the circular cover we have:
A) The area is 379.94 ft²
B) The length of the rope must be 68.2 ft
<h3>How to get the area of the cover?</h3>Remember that the area of a circle of radius R is given by the formula:
Where pi = 3.14
In this case, the diameter of the pool is 20ft, then the radius is:
R = 20ft/2 = 10ft
And it must extend 12 inches beyond, then the radius of the cover must be:
R = 10ft + 12in
Now, we know that 1ft = 12 in, then we can rewrite the radius as:
R = 10ft +1ft = 11ft
Then the area of the cover is:
B) now we want to get the length of the rope, we know that the rope runs along the cover, then the length of the rope must be equal to the circumference of the cover.
Remember that the circumference of a circle of radius R is:
Then the length of the rope will be:
If you want to learn more about circles:
#SPJ1
<u><em>Answer:</em></u>
<u>She will use:</u>
3 tablespoons of pepper
7 tablespoons of garlic powder
tablespoon of thyme
8 tablespoons of onion powder
<u><em>Explanation:</em></u>
To double the amount, Stephanie will need to double the amount of each ingredient used. This means that she will multiply each amount by 2
<u>Therefore:</u>
New amount of any ingredient = old amount of that ingredient x 2
<u>This means that:</u>
New amount of pepper = tablespoons
New amount of garlic powder = tablespoons
New amount of thyme = tablespoons
New amount of onion powder = tablespoons
Hope this helps :)
Answer: third option.
Step-by-step explanation:
By definition we know tht the geometric sequences has a common ratio, which is represented with <em>r.</em>
<em> </em>This ratio can be calculated by dividing a term by the previous term.
Therefore, keeping the information above on mind, you have that the ratio <em>r</em> of the geometric sequence given in the problem, is the shown below: