Answer:
The squared root of 9 is 3
Why - Half of 9 is 3
Why do we called this squared - It is the positive solution of the equation x2 = 9. The number 9 is a perfect square.
5 Cubed is equal to 125
Why - The number 125 on prime factorization gives 5 × 5 × 5. On combining the prime factors in groups of 3 gives 5
Why do we call this cubed = The cube of a number is that number times itself times itself. 5 cubed, denoted 53, is equal to 5×5×5, or 125.
Answer:
x∈[20/3;+∝).
Step-by-step explanation:
3x+10≥30; ⇔ 3x≥20; ⇔ x≥20/3
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(a) 4, ·b) , (c) , (d)
using the slope m of a line = tanΘ = (difference in vertical )/(difference in horizontal ) between 2 points on the line
using the endpoints of each line, then
(a) tan Θ = = 4
(b) tan Θ =
(c) tan Θ = =
(d) tan Θ =