I got 21% at selecting a point outside.
Explanation: Since the perimeter is 16sqrt (6), each side must be 4sqrt (6)
This also means that the diameter is 4sqrt (6).
To find the area of a circle, we need to find the radius (2sqrt (6)).
Area of circle is pi × (2sqrt (6))^2 = 24pi or approximately 75.4 units^2
Area of square is 4sqrt (6)^2 = 96
Thus, let's take the area of the circle and subtract that from the area of our square to yield approx. 20.6 units^2
and now divide through by 96 to yield 21%
Answer:
x1 = - 3/4. x2 = 1/2
Step-by-step explanation:
Answer:
1.7 3.2 SECOND
IF BALL SPIN INTO THE PERIMETER
By applying <em>algebra</em>, <em>radical</em> and <em>power</em> properties, we find that the <em>simplified</em> form of (√2 + √3) · (√5 - √7) is equal to √10 + √15 - √14 - √21. (Correct choice: B)
<h3>How to simplify a product of two binomials with radical numbers</h3>
Herein we need to apply <em>algebra</em> and <em>radical</em> and <em>power</em> properties to simplify the expression described in the statement, whose procedure is shown below:
- (√2 + √3) · (√5 - √7) Given
- (√2 + √3) · √5 + (√2 + √3) · (- √7) Distributive property
- √2 · √5 + √3 · √5 + √2 · (- √7) + √3 · (- √7) Distributive property
- √10 + √15 - √14 - √21 (- a) · b = - a · b/ √a · √b = √a · b/Result
By applying <em>algebra</em>, <em>radical</em> and <em>power</em> properties, we find that the <em>simplified</em> form of (√2 + √3) · (√5 - √7) is equal to √10 + √15 - √14 - √21. (Correct choice: B)
To learn more on radical numbers: brainly.com/question/13184531
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The value of t is:
a) when v = 15 then t = 3 hours
b) when v = 18 then t = 2.52 hours
<h3><u>Solution:</u></h3>
The relation between speed and time taken is given as:
It is given that for first 30 km, the speed of bicyclist is v km/hour
<em><u>
Time taken to cover first 30 km is given by:</u></em>
For next 17 km the speed of bicyclist is 2 km/hour greater than his original speed
so the speed to cover next 17 km = v + 2
<em><u>
Time taken to cover next 17 km is given by:</u></em>
Now total time t spent by the bicyclist to cover entire trip is given by
---- eqn 1
We have to find value of "t" for a) v = 15 and b) v = 18
<u><em>a) value of t when v = 15</em></u>
Substitute v = 15 in eqn 1
t = 2 + 1 = 3
So t = 3 hours
<u><em>b) value of t when v = 18</em></u>
Thus t = 2.52 hours