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3 years ago

Point Q'Q

Mathematics

1 answer:

Brut [27]3 years ago

5 0

Answer:

Step-by-step explanation:

Q(x,y)=Q'(x+111,y)

Q(4,-6)→Q'(4+111,-6)

→Q'(115,-6)

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What is the standard deviation of 52,61,31,44,47,45,25,48,47

lilavasa [31]

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4 years ago

Find the value of x, y, and z.

Anna [14]

Answer:

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°, thus

x = 180° - (52 + 32)° = 180° - 84° = 96°

The external angle of a triangle is equal to the sum of the 2 opposite interior angles.

y is an exterior angle of the triangle, thus

y = 52° + 32° = 84°

z = 180° - (55 + 84)° = 180° - 139° = 41°

In conclusion

x = 96°, y = 84° and z = 41°

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4 years ago

Use the following information to complete parts I, II, and III. 1 hour=3600 seconds

icang [17]

Answer:

I) There are $8.760\times 10^3$ hours in 1 year.

II) The exact number of hours in one year is $8.76582\times 10^3$ hours.

Step-by-step explanation:

Given : 1 hour=3600 seconds

1 year = 31556952 seconds.

To find :

I) Use scientific notation to estimate the number of hours in one year.

1 day = 24 hours

1 year = 365 days

So, number of hours in one year is given by,

$n=24\times 365$

$n=8760$

In scientific notation,

$8760=8.760\times 10^3$

So, there are $8.760\times 10^3$ hours in 1 year.

II) 1 year = 31556952 seconds.

1 hour = 3600 seconds

In one year the number of hour is given by,

$n=\frac{31556952}{3600}$

$n=8765.82$

In scientific notation,

$8765.82=8.76582\times 10^3$

So, the exact number of hours in one year is $8.76582\times 10^3$ hours.

III) In two or more complete sentences, compare your answers to parts I and II. In your comparison, discuss similarities and differences.

The exact numbers of hours using 365 days is 8760 which is written as $8.760\times 10^3$ in scientific notation but using the given data we get $8.76582\times 10^3$ hours.

Comparing these answers the first one has only 3 significant figures and the second answer has six significant figures.

If we round these we get $8.8\times 10^3$ hours which has two significant numbers.

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4 years ago