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Daniel [21]
3 years ago
10

F(x) = -3x^2 Find f(-2)

Mathematics
1 answer:
MAXImum [283]3 years ago
6 0

9514 1404 393

Answer:

  f(-2) = -12

Step-by-step explanation:

Put -2 where x is and do the arithmetic.

  f(x)=-3x^2\\\\f(-2)=-3(-2)^2=-3\cdot4=\boxed{-12}

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Themba has 6.75 cups of yoguri and needs to make 5 bowls of fruit dip. Each bowl
rodikova [14]

With 6.75 cups of yogurt , we can make 4 bowls of fruit dip.

<u>Step-by-step explanation:</u>

We have ,Themba has 6.75 cups of yoguri and needs to make 5 bowls of fruit dip. Each bowl  uses 1.5 cups of yogurt  .

<u>With 1.5 cups of yogurt:</u>

With help of 1.5 cups of yogurt one bowl of fruit dip is made. Now we are left with (6.75 - 1.5 = 5.25) cups of yogurt. Number of bowls of fruit dip = 1.

<u>With another 1.5 cups of yogurt:</u>

With help of 1.5 cups of yogurt one bowl of fruit dip is made. Now we are left with (5.25 - 1.5 = 3.75) cups of yogurt. Number of bowls of fruit dip = 2.

<u>With another 1.5 cups of yogurt:</u>

With help of 1.5 cups of yogurt one bowl of fruit dip is made. Now we are left with (3.75 - 1.5 = 2.25) cups of yogurt. Number of bowls of fruit dip = 3.

<u>With another 1.5 cups of yogurt:</u>

With help of 1.5 cups of yogurt one bowl of fruit dip is made. Now we are left with (2.25 - 1.5 = 0.75) cups of yogurt. Number of bowls of fruit dip = 4.

Now, Another bowl of fruit dip couldn't be made because we have only 0.75 cups of yogurt ! So, with 6.75 cups of yogurt , we can make 4 bowls of fruit dip.

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If you should ever need to find r, do this:

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Take the square root on both sides of the equation to find r.

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We now have the three sides of the triangle that is form in quadrant 3.

We can now read cot θ from the triangle itself.

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