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mrs_skeptik [129]
2 years ago
12

1.If x2 = 60, what is the value of x?

Mathematics
1 answer:
artcher [175]2 years ago
5 0
Q1, The answer is <span>B. plus or minus the square root of 60

x</span>² = 60
x = ?

Since a² = -√a or a² = +√a, then
x = -√60 or
x =  +√60


Q2. The answer is <span>C. 2.83 inches

The area of the square (A) with side s is:
A = s</span>²
Since A = 8 in², then s² = 8 in²
s = √8 in² 
s ≈ 2.828 in
s ≈ 2.83


Q3. The answer is <span>D. plus or minus 11
</span>
x² = 121
x² = 11²
Since a² = -√a or a² = +√a, then
x = -√11²      or      x = +√11²
x = -11          or      x = + 11
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