All categories

2 years ago

What is the factored form of this expression? 9x^2-65y^2

Mathematics

2 answers:

Airida [17]2 years ago

7 0

The expression isn’t factorable with rational numbers

Lesechka [4]2 years ago

6 0

Answer:

Step-by-step explanation:

I suspect it is 64 not 65,

9x^2-64y^2

= (3x - 8y)(3x + 8y).

(If it is 65 there are no factors)

You might be interested in

El año pasado, la familia de Kate ahorró 2,573 monedas de 1¢. La familia de Zoe ahorró el triple de esa cantidad. ¿Cuántas moned

IRISSAK [1]

Answer:

brueh what im confused

Step-by-step explanation:

4 0

2 years ago

A die is tossed. find the odds against rolling a number greater than 2.

alex41 [277]

Umm what do you mean can you explain more of it 2 me plz<span />

3 0

3 years ago

Are the graphs of each pair of equations parallel, perpendicular, or neither? x=4 y=4

Vlad1618 [11]

Both graphs x =4 and y =4 will be perpendicular to each other.

The graph of x = 4 is a vertical line down the Graph scope
The graph of y =4 is a horizontal line side the Graph scope.

Both the Lines will meet exactly at ( 4, 4 ) perpendicularly at each other both of them intersecting at 90 degrees.

Vertical and Horizontal lines are perpendicular to each other (90 Degrees).

Know more about Perpendicular Lines: brainly.com/question/1202004

5 0

8 months ago

Read 2 more answers

Maricela needs to write instructions for how to construct a regular hexagon inscribed in a circle. She begins by writing the fol

sammy [17]

Answer:

Step-by-step explanation

6 0

2 years ago

Read 2 more answers

If a snowball melts so that its surface area decreases at a rate of 3 cm2/min, find the rate (in cm/min) at which the diameter d

grin007 [14]

Answer:

The diameter decreases at a rate of 0.053 cm/min.

Step-by-step explanation:

Surface area of an snowball

The surface area of an snowball has the following equation:

$S_{a} = \pi d^2$

In which d is the diameter.

Implicit differentiation:

To solve this question, we differentiate the equation for the surface area implictly, in function of t. So

$\frac{dS_{a}}{dt} = 2d\pi\frac{dd}{dt}$

Surface area decreases at a rate of 3 cm2/min

This means that $\frac{dS_{a}}{dt} = -3$

Tind the rate (in cm/min) at which the diameter decreases when the diameter is 9 cm.

This is $\frac{dd}{dt}$ when $d = 9$ . So

$\frac{dS_{a}}{dt} = 2d\pi\frac{dd}{dt}$

$-3 = 2*9\pi\frac{dd}{dt}$

$\frac{dd}{dt} = -\frac{3}{18\pi}$

$\frac{dd}{dt} = -0.053$

The diameter decreases at a rate of 0.053 cm/min.

7 0

2 years ago