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Artist 52 [7]
2 years ago
15

What is the area of a trapezoid ABCD with bases AB and CD , if: AB=10cm, BC=DA=13cm, CD=20cm

Mathematics
1 answer:
aliya0001 [1]2 years ago
7 0

Step-by-step explanation:

to find height :

draw a height from A to CD

height = (13) 2 - 5) 2 = 12 Cm

area = 10+20 /2 X 12= 180 cm 2

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Which statement is true about the extreme value of the given quadratic equation?
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Answer:

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

Step-by-step explanation:

The correct quadratic equation is

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

This is a vertical parabola open downward (the leading coefficient is negative)

The vertex represent a maximum

Convert to vertex form

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y=-3(x^{2}-4x+4)-21

Rewrite as perfect squares

y=-3(x-2)^{2}-21

The vertex is the point (2,-21)

therefore

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

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3 years ago
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<span>Decimal</span>

<span>
</span>

<span>3/2000 = 0.0015</span>

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3 years ago
What is the area of a triangle in square units if base =11 and height=20
Sergio [31]

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Step-by-step explanation:

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6 0
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I'm going to make some assumptions here:

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