Question

please tell ne the answer of 76. c a part and yeah am in class 7​

Answer 1

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76) a) 3 × 3 × 3 × a × a × a × a = 3³ × a⁴

b) s × s × s × s × t × t × t = s⁴ × t³

Answer 2

Step-by-step explanation:

76 )))a x a x … x a (n times) = an

(a) 3 x 3 x 3 x a x a x a x a=33 x a4 = 27 a4

(b) a x a x b x b x b x c x c x c x c = a2 x b3 x c4

(c) s x s x t x t x s x s x t = s x s x s x s x t x t x t = s4

77))))

Let n be the number of times that 30 must be added together to get a sum equal to 307.

⇒30n=307.

⇒n=30730=306.

⇒30 must be added together 306 times to get a sum equal to 307.