sinh(ln(4)) = (exp(ln(4)) - exp(-ln(4)))/2 = (4 - 1/4)/2 = 15/8 = 1.875
sinh(4) = (exp(4) - exp(-4))/2 ≈ 27.28992
Answer:
x^4-8x^2+19
Step-by-step explanation:
(X^2-4)^2+3
(X^2-4)(X^2-4)+3
(x^4-8x^2+16)+3
x^4-8x^2+19
Let the required number be 'x'.
According to the question,
3x+5=65
3x=65-5
3x=60
x=60/3
x=20
Pick any random number that you think would fit. It's usually good to start with single digit numbers first, like 1 through 5 or 7, and then you move to higher numbers to show variation.
Answer:
He needs 5x+56 ft
Step-by-step explanation:
To find how much of fencing he needs , we find the perimeter of the given figure
All sides are equal in a square
To find perimeter of the square we add all the sides
4 sides we have for the square
one side is x, so perimeter of square = x+x+x+x= 4x
Now we find perimeter of rectangle
Opposite sides of rectangle are equal
Here for rectangle we consider only three sides
because fourth side is common for rectangle and square
So perimeter of the rectangle (with 3 sides) = 28 +x+ 28 = 56+x
Total fencing = perimeter of square + perimeter of rectangle
4x + 56 + x= 5x+56
