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3 years ago

(710^x)+(710^y)+(7*10^z)=700070.07

Mathematics

2 answers:

Blababa [14]3 years ago

8 0

Answer:

The answers are:

(x,y,z)=

(5,1,-2)

(1,-2,5)

(-2,5,1)

(5,-2,1)

(-2,1,5)

(1,5,-2)

Step-by-step explanation:

In order to determine the answer, we have to express the final number into a addition.

The number 700070.07 may be written by:

700000+70+0.07

Then, we can express every number into a scientific notation,that is, at the form:

$a*10^b$

700000

a=7

b=5

$7*10^5$

a=7

b=1

$7*10^1$

0.07

a=7

b=-2

$7*10^-^2$

So, in this case, we have three numbers: 5, 1, -2. The set of values are the combination of these numbers, in total 6 set of numbers.

Finally, the possible set of values for x, y, z are:

(5,1,-2)

(1,-2,5)

(-2,5,1)

(5,-2,1)

(-2,1,5)

(1,5,-2)

Ivenika [448]3 years ago

3 0

Answer:

(x,y,z)=(5,1,-2) or (5,-2,1) or (1,5,-2) or (1,-2,5) or (-2,5,1) or (-2,1,5)

Step-by-step explanation:

700070.07 = 700000 + 70 + 0.07

700000 = 7*10^5

70 =7*10^1

0.07=7*10^-2

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f(x) = 4(x - 8)

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1 year ago

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3 years ago

Finding the Median from a Dot Plot

MAXImum [283]

Answer:

median rainfall for highland storms = 18mm

median rainfall for lowland storms = 18mm

median rainfall for lowland storms = 17mm if the list of numbers is

2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32

Step-by-step explanation:

The median is the middle number of a sequence of ordered numbers.

The formula for the median is:

median = (n + 1 )/ 2

where n = total number of values

Note: the number that you find with this formula is the position. SO you have to go to the sequence of numbers and find the number that lies in that position.

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4 6 8 10 12 14 16 18 20 22 24 26 28 30 32

The numbers are already in ascending order so we can proceed.

n = 15

∴ median = (15+1)/2

= 16/2

= 8

The median is the umber in the 8th position

so, the median rainfall for highland storms is 18mm

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4 6 8 10 12 14 16 18 20 22 24 26 28 30 32

The numbers are already in ascending order so we can proceed.

n = 15

∴ median = (15+1)/2

= 16/2

= 8

The median is the number in the 8th position.

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Unclear: if this is the list of numbers:

2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32

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n = 16

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Vikentia [17]

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2 years ago

(7*10^x)+(7*10^y)+(7*10^z)=700070.07

(710^x)+(710^y)+(7*10^z)=700070.07