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Elanso [62]
3 years ago
15

(2x - y + 3) (2x - y - 3)using identities ​

Mathematics
1 answer:
Tems11 [23]3 years ago
6 0

Step-by-step explanation:

(2x-y+3)(2x-y-3)=

4x²-2xy-6x-2xy+y²+3y+6x-3y-9=

4x²-4xy+y²-9=

(2x-y)²-9

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Two numbers have a sum of 77. If one number is p, express the other number in terms of p.
zhannawk [14.2K]

Answer: 77-p

Step-by-step explanation:

o=other number

o+p=77

o+p-p=77-p

o=77-p

3 0
2 years ago
Jane is having difficulty deciding whether to put her savings in the Mystic Bank or in the Four Rivers Bank. Mystic offers a 12%
storchak [24]

Jane must therefore deposit her savings in the four rivers bank.

<h3>What is compound interest?</h3>

Interest that is added to a loan and deposit sum is known as compound interest. In our everyday lives, it is the notion that is employed the most frequently. Compound interest is calculated as a sum using the interest and principal accrued over time. Compound interest versus simple interest differ primarily in this way.

As per the data provided in the question,

Rate, r = 12%

After five years, the total amount, if Jane had saved at Mystic Bank,if Jane had saved at Mystic Bank would be:

A = P(1+\frac{r}{100} )^n

For compounded quarterly,

n = 5 × 4

n = 20

A = 40000(1 + 12/(4 × 100))²⁰

A = 72244.44     (i)

If Jane placed her savings with the Four Rivers, then,

A = 40000(1 + 14/(2 × 100))¹⁰

A = 40000 × 1.9671

A = 78686.054  (ii)

Therefore, it is evident that case (ii) is higher than case (i). Jane must therefore deposit her savings in the four rivers bank.

To know more about Compound Interest:

brainly.com/question/29335425

#SPJ1

6 0
1 year ago
If the third of 7 consecutive numbers is 12,what is their sum?
Lerok [7]

Step-by-step explanation:

the third of 7 consecutive numbers is 12.

so, this looks like

..., ..., 12, ..., ..., ..., ...

that means the numbers have to be

10, 11, 12, 13, 14, 15, 16

the sum is then

16+10 + 15+11 + 14+12 + 13 = 3×26 + 13 = 91

4 0
2 years ago
{(1, -2), (-2, 0), (-1, 2), (1, 3)}
-Dominant- [34]
It is not a function because x repeats
Domain={1,-2,-1}
Range={-2,0,2,3}

Hope this helps

Have a great day/night
3 0
2 years ago
Is 1 2/6 irrational or rational?
iris [78.8K]
I am pretty sure it is rational but if not sorry
5 0
2 years ago
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