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PtichkaEL [24]
3 years ago
10

Multiplying polynomials find the product (2a-1)(8a-5)

Mathematics
2 answers:
Readme [11.4K]3 years ago
5 0
(2a - 1) (8a - 5)

= {2a(8a - 5)} - {1(8a - 5)}

= 16a² - 10a - 8a + 5

= 16a² - 18a + 5
Yuki888 [10]3 years ago
4 0
(2a-1)(8a-5)=2a\cdot 8a-2a\cdot 5-8a\cdot 1-5\cdot (-1)=\\ \\=16a^2-10a-8a+5=16a^2-18a +5


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R-1/5=r+6/10=??????????????????????
mamaluj [8]

No they are not equal

8 0
3 years ago
How many pairwise comparisons must you make for a case with 15 statistically independent scenarios?
Levart [38]

There are 105 comparisons made with 15 statistically independent scenarios.

According to the statement

we have given value of n is 15.

Then r = 2. so,

we use the formula NcR then

Substitute the values in it then

15c2

we open it according to ncr formula

In this formula we arrange the terms according to the following

NcR formula = n! /r! * (n-r)!

then the terms will arrange in this way.

So,

ncr = 15! / 2! * 13!

After solving the statement some terms will be cancel with each other and remaining terms are

ncr = 15*14/2

ncr = 210/2

ncr = 105

here the value becomes 105.

So, There are 105 comparisons made with 15 statistically independent scenarios.

Learn more about COMBINATION here brainly.com/question/12725706

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3 0
2 years ago
10. What simple interest rate is needed for $15,000 to double in 8 years? Round to the nearest tenth.​
Mrrafil [7]

Answer:

The simples interest rate needed is 12.5%

Step-by-step explanation:

Explanation is in the attachments.

Hope this helps! :)

7 0
3 years ago
2m - 6 = 8m then 3m =
Vinil7 [7]

Answer:

3m = -3

Step-by-step explanation:

You are given

2m - 6 = 8m,

hence,

2m - 8m = 6,

-6m = 6,

m = 6%2F%28-6%29,

m = -1.

Therefore, 3m = -3.

5 0
3 years ago
Help! Please ASAP !!!!!
VladimirAG [237]
You must do work presented inside parentheses first.  Thus, do this first:  (-5-7).
3 0
3 years ago
Read 2 more answers
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