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mote1985 [20]
2 years ago
6

2x(9x^2+5y) polynomial operations

Mathematics
1 answer:
Annette [7]2 years ago
6 0
Mathpapa will give you the answer to this and explain the steps!
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The number of new cars purchased in a city can be modeled by the equation C=20t to the 2nd power, where C is the number of new c
Allisa [31]

Answer:

1998 + 5\sqrt{30}

Step-by-step explanation:

Set up the equation:

Since C(t) gives the number of cars purchased in the t-th year after 1998, then make the number of cars equal to 15 000 and solve for t - the year:

20t^2 = 15000

t^2 = 750

t = \sqrt{750} = \sqrt{10} \cdot \sqrt{25} \cdot \sqrt{3} = 5\sqrt{30}

The year will be simply 1998 + 5 \sqrt{30}

4 0
3 years ago
Solve: 8.2 = 3.4 + d d = _____
Alinara [238K]

Answer:

4.8

Step-by-step explanation:

You just subtract to solve for d so,

8.2 = 3.4 + d

-3.4   -3.4

4.8 = d

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3 years ago
Eder needs 6 cookies and 2 brownies for every 4 plates he makes for a bake sale.
lutik1710 [3]

The answer is 15 cookies and 5 brownies

4 0
3 years ago
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The formula t=√h/4 represents the time t in seconds that it takes an object to fall from a height of h feet. If a rock falls fro
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Answer:

it would take 14mph

Step-by-step explanation:

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54% is A _____ beacuase it can be written as a fraction
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