C
Step-by-step explanation:
To evaluate substitute x = 2 and y = 3 into the expression
- 3xy = - 3 × 2 × 3 = - 6 × 3 = - 18 → C
+25 = x
step-by-step explanation:
here x is the hypotenuse of a right triangle whose legs are 7 and 24. by the pythagorean theorem, 7² + 24² must equal x²:
x² = 49 + 576 = 625. thus, x = +√625 = +25 = x
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