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inessss [21]
3 years ago
5

Determine whether the polynomial is a difference of squares and if it is, factor it.

Mathematics
1 answer:
GREYUIT [131]3 years ago
8 0
Remember these three formulas (really, learn these by heart):

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

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

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

The stated formula is a manifestation of the last of these three. So indeed,

(y + 15)(y - 15) = y^{2} - 225



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You own a lawn care business. in a typical week you drive 600 miles and use 40 gallons of gasoline. gasoline costs $1.25 per gal
iVinArrow [24]
42.50$ ?        21 times 1.25  plus 13 times 1.25 = 42.50?  
4 0
3 years ago
Tamara wants to find the distance from (2, –10) to other points. For which points in the same quadrant as (2, –10) could Tamara
Wewaii [24]

Answer:

(2,-2)

(10,-10)

(2,-9)

(7,-10)

Step-by-step explanation:

The given point is (2,-10)

This point is in the fourth quadrant.

To be able to use the number line to find the distance between this point , (2,-10) and another point in the fourth quadrant, the second point must have the same x-coordinate with this point or the same y-coordinate with this point.

3 0
3 years ago
Read 2 more answers
If the ratio of blue marbles to red is 9:4 what is possible number of blue and red marbles in the jar
LuckyWell [14K]

Answer:

13

Step-by-step explanation:

13 right? all ya gotta do is add em together right?

5 0
3 years ago
Please help quickly i need this done
mr Goodwill [35]

222, 223, 224, 225, 233, 233, 234, 235, 242 243, 244, 245, 252, 253, 254, 255

322, 323, 324, 325, 332, 333, 334, 335, 342, 343, 344, 345, 352, 353, 354, 355

422, 423, 424, 425, 432, 433, 434, 435, 442, 443, 444, 445, 452, 453, 454, 455

522, 523, 524, 525, 532, 533, 534, 535, 542, 543, 544, 545, 552, 553, 554, 555

So, as you see, here are all the possiblities. The ones in bold are the odd numbers that can be formed without any repeating digits. There are 13 of those, so your answer should be 13.

Hope this helped! Have a great rest of your day! :)

8 0
3 years ago
If the area is 2289.06 whats the radius
solniwko [45]
I'm assuming you are referring to the radius of a square

The first thing we have to do is divide by pi, because it's the last thing you do when calculating the area.

2289.06/3.14
729

Now, we have to take the square root of this number because the radius in the area formula is squared.

729^1/2
27

So, the radius is 27.
3 0
3 years ago
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