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professor190 [17]
3 years ago
11

Which of the following expressions is equivalent to 3(3x)? 6x 9x 9x+1 3x+1

Mathematics
2 answers:
vichka [17]3 years ago
7 0

Answer:

Which of the following expressions is equivalent to 3(3x)?

6x

<u>9x </u>

9x+1

3x+1

Step-by-step explanation:

3(3x)=3 x 3x = 9x

Helen [10]3 years ago
7 0

The correct answer is 9x

3(3x)= 9x

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The height, h, in feet of a rock above the ground is given by the equation h = -16t^2 + 24t + 16, where t is the time in seconds
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The rock will hit the ground at 2 seconds.

Explanation:

Given that the height, h, in feet of a rock above the ground is given by the equation h=-16t^2+24t+16, where t is the time in seconds after the rock is thrown.

We need to determine the time at which the rock will hit the ground.

To determine the time, let us equate the height h = 0 in the equation h=-16t^2+24t+16, we get,

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Let us solve the equation using the quadratic formula.

Thus, we have,

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Simplifying, we get,

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