asked 26.1k views
5 votes
The equation 3√x-k-2=10 has a solution of x = 5. What is the value of k?

asked
User Patnz
by
7.9k points

2 Answers

3 votes

Answer:

the correct answer is -11

Explanation:

answered
User Ankit Vyas
by
9.0k points
3 votes

Answer:

The value of k is -11.

Explanation:

Given equation is 3√(x-k)-2=10

Step 1: Since the value of x = 5, we will substitute value of x in the given equation.

3√(5-k)-2=10

=> 3√(5-k) = 10 + 2

=> 3√(5-k) = 12

Step 2: Dividing both sides by 3

3√(5-k)/3 = 12/3

√(5-k) = 4

Step 3 : Squaring both sides

√(5-k)^2 = 4^2

(5-k) = 16

Step 4 : Separating the value of

=> 5-16 = k

=> -11 = k

=> k = -11

Therefore, the value of k is -11.

!!

answered
User Dlq
by
8.0k points
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