Which expression can be used to represent the volume of this prism? 10 × 4 units³

21 × 4 units³

3 × 11 units³

7 × 7 units³
A rectangular prism made up of unit cubes. There are 4 layers, and each layer is 3 units long and 7 units wide.

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

could

step-by-step explanation:

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