2 years ago

Provide an expression that is equivalent to -3(8+2) ?

1 answer:

5 0

Answer:

-3(8+2)=-30

Step-by-step explanation:

-3(8+2)

(8+2)=10

-3×10=-30

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Contact [7]

Answer:

-56/9

Step-by-step explanation:

Let p and q be the roots of the equation.

So, here's how we're gonna work it out:

${p}^{2} + {q}^{2} = \\ {p}^{2} + {q}^{2} +2 pq - 2pq = \\ ( {p}^{2} +2pq + {q}^{2}) - 2pq = \\ {(p + q)}^{2} - 2pq$

Vieta's formulas give us the sum and the product of the roots of a quadratic equation. Using them we obtain:

${(p + q)}^{2} - 2pq = \\ {( - \frac{ 4}{3} )}^{2} - 2 \times 4 = \frac{16}{9 } - 8 = \\ \frac{16 - 72}{9} = - \frac{56}{9}$

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3 years ago

stepan [7]

$81.00

30% of 270 = 0.3 × 270 = 81

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2 years ago

Dvinal [7]

-4,-3,0,8,12 that’s is th order from least to greatest

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2 years ago

Troyanec [42]

-2 (t+4)= -2 (t)+-2 (4)= -2t-8

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3 years ago

Ostrovityanka [42]

3/10 and 4/10 and 4/12 and 9/12

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