Answer:
The value of is .
Step-by-step explanation:
The given equation is
We need to find the value of .
Differentiate with respect to t.
It is given that y=2 and dy/dt=1, substitute these values in the above equation.
Divide both sides by 4x³.
Therefore the value of is .
Step-by-step explanation:
A playing card is in the form of a rectangle whose perimeter is equal to 28 cm and area is 45 cm².
If l and b are length and breadth of the rectangle.
Area,
Perimeter,
Put the value of l from equation (1) to equation (2). So,
Put the value of b in equation (1),
If b = 5 cm
If b = 9 cm
So, the dimensions of the playing card is 9 cm by 5 cm.
Sin24°=x/9. multiply 9 by both sides and x=3.7
Answer: option C. They are parallel and congruent.
The point J is translated 3 units to the right and 2 units upward to form point J'.
The point O is translated 3 units to the right and 2 units upward to form point O'.
So, both the length and the angle of the lines JJ' and OO' are congruent, meaning that the two segments are parallel and congruent.
<span>(2a + 2) / (a^2 – 1)
(2(a +1)) / (a^2 - 1)
(2(a + 1)) / (a^2 - 1^2)
(2(a + 1)) / ((a + 1)(a - 1))
2 / a - 1
The answer is: 2/a - 1.</span>