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sergij07 [2.7K]
3 years ago
10

SOLVING QUADRATIC EQUATIONS BY SQUARE ROOT 9p^2-6=642

Mathematics
2 answers:
Aleksandr [31]3 years ago
7 0
9p^2 - 6 = 642;  / + 6 ;
9p^2 = 648;       / ÷9 ;
p^2 = 72 ;
p = + \sqrt{72} or -  \sqrt{72};
Finally, p = +6\sqrt{2} or p = -6\sqrt{2} .
Reil [10]3 years ago
7 0
9p^2-6=642
⇒ 9p^2= 642+6
⇒ 9p^2= 648
⇒ p^2= 648/9
⇒ p^2= 72
⇒ p= 6√(2) or p= -6√(2)

The final answer is p= 6√(2) or p= -6√(2)~
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Answer:

819 cm³

Step-by-step explanation:

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6 0
3 years ago
Hazel wants to mix 12 pounds of her special blend coffee that will cost her $12.50 per pound. She uses Columbian and Sumatra cof
k0ka [10]
Let x be the amount of Columbian coffee in the mixture and y the amount of Sumatra coffee in the mixture, then
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3 0
3 years ago
Flying with a tailwind, a pilot flew an airplane 700 miles in 3.5 hours. flying into a headwind, the return trip took 5 hours. f
Naya [18.7K]
Velocity With the Wind = 700/3.5 = 200 mph
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Source:
http://www.1728.org/veloccal.htm




8 0
3 years ago
Read 2 more answers
What the answer ? someone pliss help me to do this
Nookie1986 [14]
Wow I lost brain cells trying to understand that. You need a Genius for that one
3 0
2 years ago
(8+k³-6k⁴)+(4-3k⁴+8k²)​
ANEK [815]

Answer:

12 + 8k² + k³ - 9k⁴

Step-by-step explanation:

(8 + k³ - 6k⁴) + (4 - 3k⁴ + 8k²)

8 + k³ - 6k⁴ + 4 - 3k⁴ + 8k²

(8 + 4) + (8k²) + (k³) + (-6k⁴ -3k⁴)

(12) + (8k²) + (k³) + (-9k⁴)

12 + 8k² + k³ - 9k⁴

6 0
3 years ago
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