The pool has a radius of 20/2 = 10 feet
The cover has a radius of 10 + 1 = 11 feet
Area of the cover = πr^2 = 121 π sq ft
Circumference of the cover = 2πr = 22 π ft
Answer:
<em>∠I ≈ 53.13°</em>
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Step-by-step explanation:
It can be seen from the figure that IP is perpendicular to KP
=> So that IPK is the right-angled triangle with angel IPK equal to 90°
In a right-angled triangle, there is a formula as following:
<em>+) sin of an acute angel = length of opposite side/ length of hypotenuse</em>
In triangle IPK, ∠I is an acute angel, its opposite side is KP.
The hypotenuse of triangle IPK is IK
So that, we have:
<em>+) sin ∠I = KP/ IK = 8/10 = 0.8 </em>
<em>=> ∠I ≈ 53.13°</em>
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Answer:
-74
Step-by-step explanation:
f(x) = -2x^2 +8x -10
Let x = -4
f(-4) = -2 ( -4)^2 +8(-4) -10
= -2(16) -32-10
= -32 -32-10
= -74
Answer:
y = 2/5
Step-by-step explanation:
See the attachment for the answer and enjoy :)
add this statement at the end...... "<span>Also, if she retires at 67, then there are 67-25=42 years of investment, which gives A=$53212.28"</span>