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just olya [345]
3 years ago
6

7x+4y-6z=-73 8x+5y+6z=-59 -4x-8y-3z=46 y=

Mathematics
1 answer:
Oksanka [162]3 years ago
5 0
Is this all one equation??
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Please help me guys please
madam [21]

parallel when a=2

perpendicular when a=-1/2

3 0
3 years ago
6.
larisa86 [58]

A. Every month Population will increase by a factor of 0.84%.

B.  Every 3 months Population will increase by a factor of 2.5%.

C. Increase in population in every 20 months is 10% + 6.72% = 16.72%.

<u>Step-by-step explanation:</u>

Here, we have  number of employees in a company has been growing exponentially by 10% each year. So , If we have population as x in year 2019 , an increase of 10% in population in 2020 as  x + \frac{x}{100}\times10 which is equivalent to \frac{11x}{10}.

<u>A.</u>

For each month: We have 12 months in a year and so, distributing 10% in 12 months would be like \frac{10}{12}  = 0.84 . ∴ Every month Population will increase by a factor of 0.84%.

<u>B.</u>

In every 3 months: We have , 12 months in a year , in order to check for every 3 months  \frac{12}{3} = 4 and Now, Population increase in every 3 months is \frac{10}{4}  = 2.5.  ∴ Every 3 months Population will increase by a factor of 2.5%.

<u>C.</u>

In every 20 months: We have , 12 months in a year in which increase in population is 10% . Left number of moths for which we have to calculate factor of increase in population is 20-12 = 8. For 1 month , there is 0.84% increase in population ∴ For 8 months , 8 × 0.84 = 6.72 %.

So , increase in population in every 20 months is 10% + 6.72% = 16.72%.

5 0
3 years ago
Please help me!!! I will mark.
miv72 [106K]

Answer:

the answer is the first one!

because if x=-3 we know that |x|=|-3|=3

7 0
2 years ago
Where does -1/2 go on the number line​
sweet [91]

Answer:

Between -1 and 0

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Use right triangle DCB to find the trig values for angle D. sinD = cosD = tanD =
Sever21 [200]
Sin D=35/37
cos D=12/37
tan D= 35/12
Use SOHCAHTOA
4 0
3 years ago
Read 2 more answers
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