Question

If int x [] = {2, 5, 6, 8, 10); what are the values of p and q?
(i) p = length;
(ii) q =Math.sqrt(x [1] + x [4]) * x [0]);

help please!!!!​

Answer 1

Correct Question:

If int x [] = {2, 5, 6, 8, 10}; what are the values of p and q?

(i) p = x.length;

(ii) q =Math.sqrt(x[1] + (x [4] * x [0]));

Answer:

p = 5

q = 5.0

Explanation:

x.length returns the length of the array x[]. Length of array is - 5. So, p = 5.

q = Math.sqrt(x[1]+(x[4] * x[0]))

= Math.sqrt(5+(10 × 2))

= Math.sqrt(5 + 20)

= Math.sqrt(25)

= 5.0

So, p = 5 and q = 5.0.

•••♪

Answer 2

Correct Question:-

• If int x[]= {2, 5, 6, 8, 10}; what are the values of p and q?

(i) p = x.length;

(ii) q = Math.sqrt(x[1] + x[4]) * x [0]);

Required Answer:-

(i)

p=x.length;

//x.length will return the length of the array 'x' i.e. no. of elements in array 'x'

•°• p= 5

(ii)

q = Math.sqrt(x[1] + x[4]) * x[0]);

//Math.sqrt() returns the Square Root of a number. It returns in double data type.

So,

Math.sqrt(x[1] + x[4]) * x[0])

>>Math.sqrt(5+10*2)

>>Math.sqrt(5+20)

>>Math.sqrt(25)

>>5.0

•°• q=5.0

Correct Answer:-

• p=5
• q=5.0

Note

• Index numbers always starts with zero(0).