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Ira Lisetskai [31]
3 years ago
13

How do you write 300,000,000+40,000,000+7,000,000+300,000+10,000+6,000+20+9 in standard form

Mathematics
1 answer:
kodGreya [7K]3 years ago
5 0
 it is  34,731,629 gust put the numbers to gater
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Dafna1 [17]

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14

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77 i think

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40/3 % of 9m Percentage
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find the zeros of 2x^2 - 16x + 27 using the quadratic formula. be sure to simplify the expression. Can someone please show me ho
____ [38]
For a quadratic of the form f(x)=ax^2+bx+c, we have the quadratic formula 
x=\dfrac{-b \pm \sqrt{b^2 -4ac}  }{2a},
where a is the coefficient (number before the variable) of the squared term, b is the coefficient of the linear term, and c is the constant term.

So, given 2x^2-16x+27=0, we can get that a=2, \ b=-16, and c=27. We substitute these numbers into the quadratic formula above.

x=\dfrac{-(-16) \pm \sqrt{(-16)^2 -4(2)(27)} }{2(2)}

x=\dfrac{16 \pm \sqrt{(256 -216)} }{4}

x=\dfrac{16 \pm \sqrt{40} }{4}

x=\dfrac{16 \pm 2\sqrt{10} }{4}

x=4+ \frac{\sqrt{10}}{2}, \ x=4- \frac{\sqrt{10}}{2}

This is our final answer.

If you've never seen the quadratic formula, you can derive it by completing the square for the general form of a quadratic. Note that the \pm symbol (read: plus or minus) represents the two possible distinct solutions, except for zero under the radical, which gives only one solution.
8 0
4 years ago
At what time would you reach 15ft above the water if you jump off a cliff using the formulaH(t)=-16t^2+8t+24
4vir4ik [10]

Answer:

  1.079 seconds

Step-by-step explanation:

You want to find t when H(t) = 15.

  15 = -16t^2 +8t +25

  10/16 = t^2 -1/2t . . . . . . subtract 24, divide by -16

  10/16 + 1/16 = t^2 -1/2t +(1/4)^2 . . . . . add (1/4)^2 to complete the square

  11/16 = (t -1/4)^2

  t -1/4 = √(11/16) . . . . . take the positive square root

  t = 1/4 +(√11)/4 = (1+√11)/4 . . . . use a common denominator

You would be 15 ft above the water at t = (1+√11)/4 ≈ 1.079 seconds.

3 0
4 years ago
Find the linear equation that represents the scenario.
lidiya [134]

Answer: y=235x+15

Step-by-step explanation:

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4 years ago
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