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Svet_ta [14]
3 years ago
7

Factor. 9x^4−64y^2 HELPPPP PLEASE

Mathematics
2 answers:
expeople1 [14]3 years ago
8 0
Final result :

(3x2 + 8y) • (3x2 - 8y)


Also sub to Stariceie E
UNO [17]3 years ago
3 0

Answer:

Step-by-step explanation:

Factoring the difference of two squares is as follows:

a^{2} - b^{2} = (a + b)(a - b)

In the given problem, you know that 9x^{4} can be broken down to 3x^{2} * 3x^{2}, and that 64y^{2} can be broken down to 8y * 8y, so plugging those numbers into the above equation, we get the following:

9x^{4} - 64y^{2}

(3x^{2} + 8y)(3x^{2} - 8y)

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Answer: A cylinder with Sara’s dimensions will be geometrically similar, but the scale factor will be 1:2

Step-by-step explanation:

Here is the complete question:

Sara is a drummer in her school’s marching band. She wants to make a geometrically similar model of a snare drum for her stuffed animals. To find the dimensions she should use to make a cylinder model with a scale of 1:4, Sara measures the radius and height of a snare drum and multiplies each dimensions by 1/2, which statement is true?

A. a cylinder with Sara’s dimensions will be geometrically similar, and scale factor will be 1:4

B. A cylinder with Sara’s dimensions will be geometrically similar, but the scale factor will be 1:2

C. a cylinder with Sara’s dimensions will be geometrically similar, but the scale factor will be 1:8

D. a cylinder with sara’s dimensions will not be geometrically similar

The ratio 1:4 would be the same as when it was written asa fraction as 1/4. Then, she multiplied the dimensions by 1/2, this would be a ratio of 1:2

Then the answer is that a cylinder with Sara’s dimensions will be geometrically similar, and the scale factor will be 1:2

4 0
4 years ago
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Step-by-step explanation:

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