Answer:
49a^2 - 126ab + 81 ^2
Step-by-step explanation:
Suitable identity = (a-b)(a-b) = a^2 - 2ab + b^2
So, to solve this.
(7a-9b)(7a-9b) = 49a^2 - 126ab + 81b^2
Hope this helps
Answer:
Probability, eh?
Step-by-step explanation:
To figure out how likely an event is, we just put the number of the blue bands over the total number of 'other' bands.
Pretty easy!
(or do you want it in percent?)
%
(I remember there was a weird notation for these things, but I forgot it)
It is unlikely he will choose a blue band, as it is much more likely he will choose a 'other' band.
Remember, the smallest number for an event will make it the most unlikeliest to happen out of all the others.
Hope this helps!
P.S. Stay Safe, Wash Your Hands, etc.
<h2><u>Circle Equations</u></h2>
<h3>Write the standard form of the equation of the circle with the given characteristics.</h3><h3>Center: (0, 0); Radius: 2</h3>
To determine the equation of a circle, use the standard form of a circle (x - h)² + (y - k)² = r² where,
- <u>(h, k)</u> is the center; and
- <u>r</u> is the radius
Substitute the values of the center and radius to the standard form.
<u>Given:</u>
<u>(0, 0)</u> - <u>center</u>
<u>2</u> - <u>radius</u>
- (x - h)² + (y - k)² = 2²
- (x - 0)² + (y - 0)² = 4
- x² + y² = 4
<u>Answer:</u>
- The equation of the circle is <u>x² + y² = 4</u>.
Wxndy~~
Answer:
im pretty sure its A
Step-by-step explanation:
judging by the graph A is the one that makes the most scene.