Answered

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Find the value of [tex][tex]$3 \sqrt{x} + 7$[/tex][/tex] if [tex][tex]$x = 25$[/tex][/tex].

A) 32
B) 22
C) -8
D) 82

Sagot :

GinnyAnswer
To solve the given problem, we need to find the value of the expression [tex]\( 3 \sqrt{x} + 7 \)[/tex] when [tex]\( x = 25 \)[/tex].

1. First, substitute [tex]\( x = 25 \)[/tex] into the expression:

[tex]\[ 3 \sqrt{x} + 7 \][/tex]

becomes

[tex]\[ 3 \sqrt{25} + 7 \][/tex]

2. Next, calculate the square root of 25. The square root of 25 is:

[tex]\[ \sqrt{25} = 5 \][/tex]

3. Substitute [tex]\( \sqrt{25} \)[/tex] back into the expression:

[tex]\[ 3 \cdot 5 + 7 \][/tex]

Simplify the multiplication:

[tex]\[ 15 + 7 \][/tex]

4. Finally, add 15 and 7:

[tex]\[ 15 + 7 = 22 \][/tex]

So, the value of [tex]\( 3 \sqrt{25} + 7 \)[/tex] is [tex]\( 22 \)[/tex].

Therefore, the correct answer is:
[tex]\[ \boxed{22} \][/tex]
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