23. A large asteroid crashed into a moon of another planet causing several bould

Question

23. A large asteroid crashed into a moon of another planet causing several boulders from the moon (1 poin to be propelled into space toward the planet. Astronomers were able to measure the speed of one of the projectiles The distance (in feet) that the projectile traveled each second, starting with the first second was given by the arithmetic progression 17,51,85, 119.. Find the distance that the projectile traveled in the ninth second 306 ft 323 ft 0255 ft 289 ft. 24 Calculate S20 for the arithmetic sequence in which a11-3 2 and the common difference is d= (1 pon 2.9 0-25 8 35 29.3 -876 (n +31 l point)

Explanation / Answer

23. 17,51,85,119,

The given series is in arithmetic progression where first term is 17 and common difference is 34 and number of terms,n=9

n th term is a+(n-1)d=17+(9-1)34=17+8(34)=289

Correct option is the last option.

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