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Sergio [31]
4 years ago
15

If possible, factor 225x2 − 9y2

Mathematics
2 answers:
borishaifa [10]4 years ago
6 0

Answer:

9(5x + y)(5x -y)

Step-by-step explanation:

You can just factor out 9 first.

9(25x^2 - y^2)

Then you can use difference of squares formula:

9(5x + y)(5x -y)

dmitriy555 [2]4 years ago
3 0

Answer:

9(5x+y)(5x-y)

Step-by-step explanation:

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What is the square root of 64 over 225 with a negative outside of the radical?
irinina [24]
The square root of  (64/225)  is the same as  √64 / √225 . 
That could make the whole thing easier.

Do you know what either of those separate square roots is ?

You're right !    I'm so impressed!
The square root of  64  IS  8, and the square root of  225 surely is  15 .
You really know your stuff !

So now, the expression is  √64 / √225  =  <em>8 / 15</em> .

Oh, I almost forgot, it has a negative sign before it.  OK,so the answer is <em>- 8/15</em> .

5 0
3 years ago
20 points<br> What is the explicit formula for this sequence? -5,-3,-1,1,3
oksian1 [2.3K]
It is B because the formula is 1st term (a) + (n-1) (T2-T1)
7 0
4 years ago
Read 2 more answers
frank, joe and carl went with their Grandma to the bakery. she said that they could use the change she got back to buy mini-chip
balu736 [363]

Answer:

3

Step-by-step explanation:

First, multiply the bread cost 2.70 by 2, getting you 5.40.

Next, add 11 for the cost of the caketo 5.40 getting you 16.40

Subtract 16.40 from 20 to get how much money you get for the cookies, getting you 3.60

Divide 3.60 by 3 to find how much money each boy gets, getting you 1.20

Divide 1.20 by .40 to get the number of cookies each boy gets, getting you 3

8 0
4 years ago
Gilbert is graduating from college in one year, but he will need a loan in the amount of $5,125 for his last two semesters. He m
sleet_krkn [62]
First, determine the effective interests given both interest rates.

(1)   ieff = (1 + 0.068/12)^12 - 1 = 0.07016
(2)   ieff = (1 + 0.078/12)^12 - 1 = 0.08085

Calculating the interests will entail us to use the equation,
     I = P ((1 + i)^n - 1)

Substituting the known values,
  (1)    I = ($5125)((1 + 0.07016)^1/2 - 1)
          I = $176.737

   (2)    I = ($5125)(1 + 0.08085)^1/2 - 1)
            I = $203.15

a. Hence, the greater interest will be that of the second loan. 

b. The difference between the interests,
    d = $203.15 - $176.737
          $26.413
7 0
3 years ago
- Find the total tax deductions for each of the following weekly paychecks. weekly pay $198.00 $340.00 $250.00 FICA (7.65%) ​
Reptile [31]

Answer:

Total tax deduction per paycheck:

= Weekly pay * FICA tax rate.

Weekly pay $198.00:

= 198 * 7.65%

= 15.147

= $15.15

Weekly pay $340.00:

= 340 * 7.65%

= $26.01

Weekly pay $250.00:

= 250 * 7.65%

= 19.125

= $19.13

3 0
3 years ago
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