What is the product of any nonzero real number and it’s multiplicative inverse?
1 answer:
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. Correct option is D) 113.0 ft² .
<u>Step-by-step explanation:</u>
Here we have , A circle labeled with radius = 6 ft . We need to find the best approximation for the area of this circle . Let's find out:
We know that area of circle = , We have following parameters as
So , Area of circle is
⇒
⇒
⇒
⇒
On Rounding off
⇒
Therefore , . Correct option is D) 113.0 ft² .
You need to find the circumference of the whole circular pool and then subtract from it the arc length that is 1/4 of the circumference. The circumference formula is C = (3.14)(d), which in our case is 3.14(40) which is 125.6. Now we need the arc length we need to take away. 1/4 of a circle corresponds to a 90 degree angle, so in the formula for arc length, we have this: 
which equals 31.4. Now subtract that from the circumference of the whole circle and you get the outside of the circle minus that arc length. That's 94.2. But we have to go in the radius times 2 to enclose the pie shaped piece we cut away. So we have 134.2. She should've just stuck with enclosing the circle; she would have used less fencing!
Answer:
26042.
Step-by-step explanation:
What's the first term of this geometric series?
2.
What's the common ratio of this geometric series?
Divide one of the terms with the previous term. For example, divide the second term -10 with the first term 2.
.
What's the sum of this series to the seventh term?
The sum of the first n terms of a geometric series is:
,
where
is the first term of the series,
is the common ratio of the series, and
is the number of terms in this series.
.