Question
The two buildings are 100m apart. From the top of the
first building, which is 60m tall, the angle of depression to the top of the second building is 45 degrees. How tall is the second building?Solution
If the length of a rectangle is increased by 40%, and the breadth is decreased by 20%,then the area of the rectangle increases by x%. Then the value of ...
A number is increased by 20%, and the resulting number is decreased by 20%. If the initial number is ₹x, the final number is ₹2880. What is the valu...
Solve for x in the equation: 3(x + 2) + 2(2x - 5) = 5x + 9
(u - 5) 2 + (v + 2) 2 + (w – 4) 2 = 0, then find the value of 4u - v + w.
If x = (√13 + √12)/ (√13 - √12) and y = (√13 - √12)/(√13 + √12), then find the value of 4x2 – xy + 4y2.
...If a, b and c are integers such that a 2 + b 2 + c 2 = 228, a + b + c = 26 and b = c, then find the value of a?
Find ‘x’ if (x³+3x)/(3x²+1) = 189/61
What is the highest common factor of (x³ - x² - x - 15) and (x³ - 3x² - 3x + 9)?
If ( p = 40 - q - r ) and ( pq + r(q + p) = 720 ), then find the value of ( p2 + q2 + r2).
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