Answer:
x = ± 
Step-by-step explanation:
3x² + 7 = 28 ( subtract 7 from both sides )
3x² = 21 ( divide both sides by 3 )
x² = 7 ( take square root of both sides )
x = ±
that is x = - , x =
Answer:
D. 5
Step-by-step explanation:
Answer: 53
Step-by-step explanation:
Answer:
87.8
Step-by-step explanation:
So you have to multiply 91 times 3.5 which equals 318.5
91 × 3.5 = 318.5
Then divide 318.5 by 100 which equals 3.185
318.5 ÷ 100 = 3.185
Next subtract 91 by 3.185 which equals 87.815
91 - 3.185 = 87.815
Last Round 87.815 to 87.8
87.8 should be the answer
Hope this helps
