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What is the length of the base of a right triangle with an area of 15 m² and a height of 3 m?

5 m
10 m
30 m
45 m

Hello, Your answer B.

Step-by-step explanation:

We know, Area = 1/2 * base * height Substitute your given values into the expression:

15 = 1/2 * b * 3

15 * 2 = 3 * b

b = 30/3

b = 10 m Your answer will be Option B.

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation: