3 years ago

HELO ASAP CONVERT ALL OF THE FOLLOWING TO STANDARD NOTATIONS

Mathematics

1 answer:

konstantin123 [22]3 years ago

7 0

Answer:

5. 78300000

6. 25000

7. 0.000008345

8. 0.003

Step-by-step explanation:

when the exponent is negative, the decimal moves to the left

when the exponent is positive, the decimal moves to the right

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7x²+3y²-28x-12y=-19

grigory [225]

Complete the square for x and y.

7x^2 + 3y^2 - 28x - 12y = -19

7x^2 - 28x + 3y^2 - 12y = -19

7(x^2 - 4x) + 3(y^2 - 4y) = -19

7(x^2 - 4x + 4) + 3(y^2 - 4y + 4) = -19 + 28 + 12

7(x - 2)^2 + 3(y - 2)^2 = 21

$\dfrac{(x - 2)^2}{3} + \dfrac{(y - 2)^2}{7} = 1$

4 0

3 years ago

Help Meh Once Again :)<br> (5 + 7)^2 =

Lubov Fominskaja [6]

Answer:

144

Step-by-step explanation:

PEMDAS

(12)^2

144

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3 years ago