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4 years ago

The product of 3x and (3x+1) is a t least 35

1 answer:

6 0

Product means the sum of two things i.e. the product of 1 and 2 is 3 <span>(1 + 2 = 3)

So the product of 3x and (3x+1) can be written as:
35 < 3x + 3x + 1
^ Greater than 35 i.e. at least 35
35 < 6x + 1
34 < 6x
34/6 < x
17/3 < x
5.67 (2dp) < x

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jeka57 [31]

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3 years ago

If 9 lbs.of pasta salad serves 15 people, how much pasta salad should you bring to a picnic with 76 people

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3 years ago

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The height, h, in feet of a piece of cloth tied to a waterwheel in relation to sea level as a function of time, t, in seconds ca

irinina [24]

Answer:

d) 40 sec

Step-by-step explanation:

We have been given that the height h, in feet of a piece of cloth tied to a waterwheel in relation to sea level as a function of time, t, in seconds can be modeled by the equation $h=15cos(\frac{\pi}{20})t$ . We are asked to find the time it will take for the waterwheel to complete one turn.

To solve for time we need to find the period of the given cosine function.

We know that general form of a cosine function is in form $y=a\cdot\text{cos}(bx)+c$ , where,

a = Amplitude,

$\text{Period}=\frac{2\pi}{b}$

We have been given $b=\frac{\pi}{20}$ . Substituting this value in period formula, we will get:

$\text{Period}=\frac{2\pi}{\frac{\pi}{20}}$

$\text{Period}=\frac{20*2\pi}{\pi}$

$\text{Period}=20*2$

$\text{Period}=40$

Therefore, it will take 40 seconds for the waterwheel to complete one turn and option 'd' is the correct choice.

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3 years ago

What's the answer???

Flura [38]

-1 would be your answer to this problem

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3 years ago

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Please solve and explain to me the steps

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4 years ago