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yanalaym [24]
2 years ago
13

Root 15 * root 10 It is urgent

Mathematics
1 answer:
nydimaria [60]2 years ago
6 0

6 \sqrt{5}

Step-by-step explanation:

\sqrt{15}  \times  \sqrt{10}

=  \sqrt{3 \times 5}  \times  \sqrt{2 \times 5}

= 3 \sqrt{5}  \times 2 \sqrt{5}

= 6 \sqrt{5}

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A cubic equation has factors of (x + 2)(x^2 + 7x + 10). Determine ALL of the real roots. Which one is a double root?
Gnesinka [82]

Answer:

x = -2, -5 where -2 is a double root

Step-by-step explanation:

The real roots are the solutions to the cubic equation. You find them by setting each factor equal to 0 and solving for x.

x+2 = 0 \\x= -2

x^2 + 7x +10 = 0\\(x+2)(x+5) = 0\\x=-2, -5

Since -2 appears twice, it is a double root.

3 0
3 years ago
a man climbs on to a wall that is 4.5m high and gains 2450j 0f potential energy.what is the mass of the man?
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Answer:

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= 55.5 kg.

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3 years ago
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