Question
The instrument that measures and records the relative
humidity of air is –Solution
A hygrometer is an instrument used for measuring the moisture content in the environment. Humidity measurement instruments usually rely on measurements of some other quantity such as temperature, pressure, mass or a mechanical or electrical change in a substance as moisture is absorbed. By calibration and calculation, these measured quantities can lead to a measurement of humidity.
If 64x3 - 343y3 = (4x - Ay) X (Bx2 + 49y2 + Cxy), then find the value of 3 X (2A + 6B) - 2C.
If (2a + b)/(3b - 2b) = 13/2 then 'b' is what percent of 'a'?
Length of each side of a rhombus is 13 cm and one of the diagonal is 24 cm. What is the area (in cm2) of the rhombus?
If 125x3 - 216y3 = (5x - Ay) X (Bx2 + 36y2 + Cxy), then find the value of 3 X (2A + 6B) - 2C.
(x – 6) 2 + (y + 2) 2 + (z – 4) 2 = 0, then find the value of 4x - 3y + z.
- If (u + v) = 11 and uv = 24, then find the value of (u² + v²).
Solve the system:
x + 2y = 13
3x − y = 5
What is the value of 2x + y?
If x² + px + q = 0 has roots 4 and -3, find the values of p and q.
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