Evaluate 3 + √(x + 19) - √(2x) when x = 6. write the answer in simplified radical form.

4.53

Step-by-step explanation:

3 + √(x + 19) - √(2x)

3 + √(6 + 19) - √(2(6))

3 + √(25) - √(12)

3 + 5 - 3.47

8 - 3.47

= 4.53

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he spend 5.1 minutes chatting with his friends

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5 1/10

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.