What is (81x^2 -4y^2) square units factored?

1 answer:

4 0

To solve, use the difference of squares rule. (a^2-b^2)=(a-b)(a+b). In your equation, your a^2=81x^2 and your b^2=4y^2, making your a=9x and your b=2y. This makes your factored form (9x-2y)(9x+2y).

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If an airplanes speed is 850mi/h what is it’s speed in m/s

Blizzard [7]

we are given

speed is 850mi/h

we know that

1 mile =1609.34 metre

1 hour = 3600 second

now, we can replace 1mi and 1hour

$850mi/h=850*\frac{1609.34}{3600} m/s$

now, we can solve it

379.98306

$850mi/h=379.98306 m/s$ ...........Answer

7 0

2 years ago

Read 2 more answers

Pls help (kinda easy)

3241004551 [841]

Answer:

$f(x)=(2x+1)(2x-1)$ .

Step-by-step explanation:

We want to convert the function into the form that let's us easily find the x-intercept, and it would be for the form $(ax+b)(cx+d)$ because then we can find the x-intercept in the following manner: