Answer
Area of a regular hexagon is given by:
.....[1]
where,
A is the area of a regular hexagon
a is the side of the hexagon.
As per the statement:
Perimeter of a regular hexagon is 48 inch.
Perimeter(P) of a regular hexagon is given by:
Substitute the given values we have;
Divide both sides by 6 we have;
or
a = 8 inch.
Substitute the value of a = 8 inches in [1] we have;
⇒
Therefore, the area of a regular hexagon is sq. in
The solution is, The length of the altitude of the equilateral triangle is 9.
Trigonometry is the study of the relationships between the angles and the lengths of the sides of triangles
here, we have,
The six trigonometric functions are sin , cos , tan , cosec , sec and cot
Let the angle be θ , such that
sin θ = opposite / hypotenuse
here, we have,
The given triangle is an equilateral triangle.
Here, a is a median which bisects the base. It also serves as an altitude, as it is an equilateral triangle.
As the triangle can be divided into two right angle triangle,
Using Sine.
Sine = Opposite / Hypotenuse
sin 60° = a / (6√3)
But sin60° = √3/2
so, we get,
√3/2 = a/(6√3)
Cross multiply
2*a = 6√3 * √3
2a = 6 * √(3*3)
2a = 6*3
a = 6*3/2
a = 3*3
= 9
Hence, Option E. The solution is, The length of the altitude of the equilateral triangle is 9.
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Answer:
0.125
Step-by-step explanation:
1/8 as a decimal is 0.125. I think this is the answer but I am not 100% positive.
Answer:
129/28 (4.6 approx.)
Step-by-step explanation:
The first hols 1 1/7 quarts, it is: 1 + 1/7
Using 7 as common denominator and summing:
1 + 1/7 = 7/7 + 1/7 = 8/7
The second holds 5 3/4 which is: 5 + 3/4. Using 4 as common denominator:
5 + 3/4 = 20/4 + 3/4 = 23/4
Now we need to know how much greater is 23/4 than 8/7. For comparing them we need to set them to a common denominator. The easiest way is use a number that is multiple of both, 4 and 7, lets us 28. We need to multiply the numerators by the number that, multiplied by denominators gives us 28. For the first is 4, and for the second 7.
8/7 = (8*4)/7*4=32/28
23/4= (23*7)/4*7 = 161/28
Now, we only have to subtract:
23/4 - 8/7 = 161/28 - 32/28 = 129/28
So, the second container has 129/28 more quarts of water (approx. 4.60) than the first.
What is the value of a?
Answer: Hello there!
here we have the equation n^4 - 1
using the relation:
we can write our equation as:
and (n^2 + 1) has only complex roots, i and - i, then we can factorize this as (n -i)(n + i) = n*n + ni - ni (+i)*(-i) = (n^2 + 1)
then our equation is: