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nydimaria [60]
3 years ago
11

Find the roots of the quadratic equation 3x2 − 12x − 60 = 0

Mathematics
1 answer:
uranmaximum [27]3 years ago
3 0
3x²-12x-60=0
simplify by dividing by 3: x²-4x-20=0
cannot be factored, use the quadratic formula: √(b²-4ac)=√[(-4)²-4*1*(-20)]=√96=4√6
x=2+2√2 or x=2-2√2
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X equals the square root of 6-x 


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Use what you know about decimals or fractions to explain why (0.2)•(0.002)=0.0004
strojnjashka [21]

Answer:

So any time you are multiplying something, you are making "groups of"

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2 years ago
You toss two 6-sided dice one right after the other. What is the probability of rolling a 3, then rolling a different odd number
jarptica [38.1K]
1/18.
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5 0
2 years ago
Find the power of 1.4 product is 3.<br><br><br>1.64<br><br>2.744<br><br>4.2<br><br>1.96
Natasha2012 [34]

Answer:

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5 0
2 years ago
Read 2 more answers
Simplify the expression (8x^3y^2/4a^2b^4)^-2
icang [17]
Simplify the following:
((8 x^3 y^2 a^2 b^4)/4)^(-2)
8/4 = (4×2)/4 = 2:
(2 x^3 y^2 a^2 b^4)^(-2)
Multiply each exponent in 2 x^3 y^2 a^2 b^4 by -2:
(x^(-2×3) y^(-2×2) a^(-2×2) b^(-2×4))/(2^2)
-2×3 = -6:
(x^(-6) y^(-2×2) a^(-2×2) b^(-2×4))/2^2
-2×2 = -4:
(y^(-4) a^(-2×2) b^(-2×4))/(2^2 x^6)
-2×2 = -4:
(a^(-4) b^(-2×4))/(2^2 x^6 y^4)
-2×4 = -8:
b^(-8)/(2^2 x^6 y^4 a^4)
2^2 = 4:
Answer: 1/(4 x^6 y^4 a^4 b^8) thus the answer is A
3 0
3 years ago
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