Q. Which two integers is 390 between?Choices:(A) 13 and 14(B) 4 and 5(C) 10 and 11(D) 3 and 4
Identify Perfect Cubes: Identify the perfect cubes near 90. Find the perfect cubes just below and just above 90. The perfect cube just below 90 is 64 (43=64). The perfect cube just above 90 is 125 (53=125).
Calculate Cube Roots: Calculate the cube roots of 64 and 125.\ Cube root of 64 is 4, because 4×4×4=64.\ Cube root of 125 is 5, because 5×5×5=125.
Determine Cube Root Range: Determine between which integers the cube root of 90 falls.Since 64 < 90 < 125, it follows that 4 < \text{cube root of } 90 < 5.