Question
Find the cube root of −729: −729−−−−√3(1 point)
Responses
9
9
−9
negative 9
9, −9
9 comma negative 9
243
The cube root of -729 is -9.
Question
Find the cube root of −8 : −8−−−√3
The cube root of -8 is -2.
Find the cubic root of 135.(1 point)
Responses
35–√3
3 root index 3 start root 5 end root
35–√
3 start root 5 end root
527−−√3
5 root index 3 start root 27 end root
5–√3
The cube root of 135 is approximately 5.0825.
To find the cube root of -729, we need to find a number that, when multiplied by itself three times, equals -729.
One way to find the answer is by using a calculator with a cube root function. Simply enter -729 and press the cube root (∛) button to get the answer.
Alternatively, we can manually find the cube root by trying different numbers. Start with small numbers and cube them until we find one that equals -729.
In this case, the cube root of -729 is -9 because -9 * -9 * -9 = -729.