7/8
Step-by-step explanation:
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Answer:
C. x = ±4
Explanation:
<u>Given two equation's</u>:
- y = 3x² + 15
- y = 5x² - 17
Solve them simultaneously:
y = y
3x² + 15 = 5x² - 17
5x² - 3x² = 15 + 17
2x² = 32
x² = 16
x = ±√16
x = ±4
Wow, 11,005,026 that's your answer
Answer:
320
Step-by-step explanation:
r = 4, so 2 x 4 = 8.
s = 6 and t = 3, so 6 x 3 = 18. 18 squared is 324.
u = 12, so 8 + 324 - 12, which equals 320.
