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Molodets [167]
3 years ago
9

Find any real solutions for the following equations. sqrt(x) = -1

Mathematics
1 answer:
Taya2010 [7]3 years ago
4 0
The sqrt of (x)=-1 is either i or 1
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Factorise fully 9x squared - 6xy
prisoha [69]
3x(3x-2y) 

you have to find a common factor between the two numbers. in this case it's three, so you just divide each number by three.
4 0
3 years ago
How many 1/10's are in 2/5?
goblinko [34]
There is 4 1/10's in 2/5.

You do this by turning 2/5 into a fraction with a denominator of 10, so it will be 4/10. 1/10 + 1/10 + 1/10 + 1/10 = 4/10
3 0
4 years ago
When 5655 is divided by a positive two digit intreger "N" the remainder is 11, when 5879 is divided by the same intreger N the r
Temka [501]

Answer:

8

Step-by-step explanation:

Hi,

When we divide 5655 by N, we get remainder of 11, which means that 5655-11 is a multiple of N.

5655 - 11 = 5644 is a multiple of N.

Similarly, 5879-14 should be a multiple of N.

5879 - 14 = 5865 is a multiple of N.

Because 5644 and 5865 are both multiples of N, their difference must be a multiple of N.

5865 − 5644 = 221 then 221 is a multiple of N.

We have three number of which N can be a multiple of, however we choose to factorize the smallest possible number amongst these three, which is 221. (This is only for simplification of the solution, smaller the number, less the factors)

221 : 1, 13, 17, 221.

There are only two two - digit factors: 13 and 17.

We divide 5865 and 5644 by both numbers.

\frac{5865}{13} = 451.15 \\\frac{5865}{17} = 345 \\\frac{5644}{13} = 434.15 \\\frac{5644}{17} = 332\\

Looking at these results, we know only 17 divides all three numbers.

Hence N=17.

The sum of both digits will be: 1 + 7 = 8

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3 years ago
The arena wants to estimate the previous two month’s ticket-sale income. In total, 71,115 people attended different events at th
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6 0
4 years ago
Please help due tommorow
raketka [301]

Answer:

4 is b 0.15

i think 5 is b

Step-by-step explanation:

i couldn't figure out the others "-u-

5 0
3 years ago
Read 2 more answers
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