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STatiana [176]
3 years ago
11

Simplify 5 (2 squared) -1^2

Mathematics
2 answers:
Serggg [28]3 years ago
8 0
19 is the answer since 2 to the 2nd power is 4 5×4=20 -1 to the 2nd power is -1
20-1=19
koban [17]3 years ago
3 0
The answer is 19 since 5x4=20 and 20-1=19
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Which statement is true about the extreme value of the given quadratic equation? y = -3x2 + 12x − 33
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Answer:

The equation has a maximum value with a y-coordinate of -21.

Step-by-step explanation:

Given

y =-3x^2 + 12x - 33

Required

The true statement about the extreme value

First, write out the leading coefficient

Leading = -3

-3 < 0 means that the function would be a downward parabola;

Downward parabola always have their vertex on top of the parabola and as such, the function has a maximum value.

The maximum value is:

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Where:

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So, we have:

x = -\frac{12}{2 * -3}

x = -\frac{12}{-6}

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y = -3*2^2 + 12 * 2 - 33

y = -21

<em>Hence, the maximum is -21.</em>

8 0
3 years ago
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dimulka [17.4K]

Answer:

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Step-by-step explanation:

3 1
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Step-by-step explanation:

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