The expression 𝑥3+27 is equivalent to?
A. (𝑥+3)(𝑥2−3𝑥−9) B. (𝑥+3)(𝑥2−3𝑥+9) C. (𝑥+3)(𝑥2+3𝑥+9) D. (𝒙+𝟑)(𝒙𝟐−𝟑𝒙+𝟗)
Which of the following is Longitudinal waves?
A. Water waves B. Sound Waves C. Light waves D. Waves on string
3 45 is expressed as a decimal is ?
A. 3.4 B. 3.45 C. 3.8 D. 3.5
If each side of a cube is doubled, then its volume becomes?
A. 4 Times B. 3 Times C. 8 Times D. 2 Times
A tank is filled by one tap in 20 minutes and by another in 25minutes. If both tapes are kept open for 5minutes and then the second is turned off. In how many minutes the tank will be completely filled?
A. 6 minutes B. 11 minutes C. 17 minutes D. 16 minutes
which of following is a subset of {𝑏,𝑐,𝑑}
A. {𝑏} B. { } C. {1,2,3} D. Both A And B
The place value of 8 in the number of 485.21 is?
A. 8 tens B. 8 ten C. 8 one D. 8 ones