3 years ago

Solve the inequalities:

1 answer:

7 0

Try this option (see the attached picture).

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Vinil7 [7]

Solution-

First 9 letters of alphabet are- A,B,C,D,E,F,G,H,I

Total number of ways of selection of 4 letters from 9 alphabets = 9C4

=9!÷((4!).(9-4)!) = 9!÷(4!×5!) = (9×8×7×6)÷(24) = 126

The number of ways of arranging these 4 numbers = 4! = 24

∴ Total number of possible permutations = 9C4×4! = 126×24 = 3024

∴ option number 2 is correct.

8 0

4 years ago

maksim [4K]

The answer is .4x because -3.4x+3.8x

4 0

3 years ago

lana66690 [7]

Answer:

The effect of doubling all the dimensions of a triangular pyramid will have on the volume of the pyramid is to increase it by 8 times.

Step-by-step explanation:

i) volume of triangular pyramid = $\frac{1}{3}$ $\times$ Area $\times$ height

= $\frac{1}{3}$ $\times$ (Base of triangle $\times$ perpendicular height of triangle) $\times$ height

ii) if we double all the dimensions then the three variables((Base of triangle, perpendicular height of triangle, height of pyramid) will be doubled

and the volume of the new pyramid will be 8 times that of the original one.

3 0

3 years ago

babunello [35]

Answer:

Step-by-step explanation:

4*2=8*8=64
ur welcome
64 cm3

4 0

2 years ago

siniylev [52]

Answer: Earth: radius = 6378 kilometer, diameter = 12756 kilometers.

5 0

3 years ago