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ser-zykov [4K]
3 years ago
11

Which expression is equivalent to 64 – 9x^2?

Mathematics
1 answer:
Rzqust [24]3 years ago
6 0

Answer:

Option C is correct

Step-by-step explanation:

A = 64 - 9x^2

   = 8^2 - (3^2)(x^2)

   = 8^2 - (3x)^2

Hope this helps!

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Which of the following is a area of the special trepezoid if ab=19,cd=19 and the height is 14
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As, Opposite side of Special trapezoid is equal.So, it will be a Parallelogram.

ab=c d= 19 units

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Area of Trapezoid =  \frac{1}{2} \times {\text{Sum of parallel sides}} \times {\text{Perpendicular Distance between them}}

  =\frac{1}{2}\times (19+19) \times 14\\\\ =\frac{1}{2} \times 38 \times 14\\\\ = 19 \times 14\\\\= 266

So, Area of Trapezoid = 266 square units

You, can use the formula for finding the area of parallelogram,which is = Base on which perpendicular is drawn × Length of Altitude

= 19 × 14

= 266 square units

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