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Katyanochek1 [597]
3 years ago
14

Which expression is equivalent to sqrt -108 - sqrt -3

Mathematics
2 answers:
Artyom0805 [142]3 years ago
5 0

sqrt (-108) - sqrt (-3)

sqrt(-1) sqrt(108) - sqrt(-1) sqrt(3)

sqrt(-1)*sqrt(36)*sqrt(3)-sqrt(-1)sqrt(3)

sqrt(-1)sqrt(3) (6-1)

isqrt(3)5

5isqrt(3)

Choice A


xxTIMURxx [149]3 years ago
4 0

answer : Option A

\sqrt{-108} - \sqrt{-3}

first we simplify each square root

The value of square root (-1) = i, to remove negative inside the square root we use 'i'

\sqrt{-108} =\sqrt{-36* 3}= 6i\sqrt{3}

\sqrt{-3} = i\sqrt{3} (we cannot simplify square root (3))

\sqrt{-108} - \sqrt{-3}

6i\sqrt{3} - i\sqrt{3}

Both are like terms, so we subtract it

5i\sqrt{3}

5\sqrt{3} i

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one number is equal to the square of another. find the numbers if both are positive and their sum is 1122
statuscvo [17]

Answer:

One number is 561

The other number is 23.6854

Step-by-step explanation:

x = y^2                One number = the square of another

x + y^2 = 1122     The sum of the two numbers is 1122

Substitute y^2 in for x on the second equation.

y^2 + y^2 = 1122    Combine like terms on the left

2y^2 = 1122            Divide by 2

y^2 = 1122/2

y^2 = 561                Take the square root of both sides.

y = 23.6854            

x = y^2

x = 561

y^2 = 561


4 0
3 years ago
The table shows how much money Edguardo earns as a golf coach. He charges a flat fee of $38, plus $22 per hour. Complete the tab
Vesnalui [34]
Let's re-read the statement and question, and then break it down.
He charges a flat fee of $38, plus $22 per hour.
A flat fee of $38 is only a one-time pay, and will never be paid for again.
This means if after two hours, we only add $38 once overall, never more.
Every hour that goes by, he earns $22 each hour.
Now that we've broken this down, we can make an equation.
Let's do 1 hour.
1(22) + 38 = 22 + 38, = 60.
For 1 hour he earns $60.
Let's do 2 hours.
2(22) + 38 = 44 + 38, = 82.
For 2 hours he earns $82.
Let's do 3 hours.
3(22) + 38 = 66 + 38, = 104.
For 3 hours he earns $104.
Let's do 4 hours.
4(22) + 38 = 88 + 38, = 126.
For 4 hours he earns $126.
This is a pattern.
Now let's do 8 hours, which is the main question, "How much does he make in 8 hours?".
8(22) + 38 = 176 + 38, = 214.
For 8 hours he earns $214.
I hope this helps!
4 0
3 years ago
Read 2 more answers
The angle between 0 and 2π in radians that is coterminal with the angle 41/6π in radians is?
Inessa05 [86]

Answer:

  5π/6

Step-by-step explanation:

Subtract multiples of 2π until you find the angle in the desired range.

  41π/6 -36π/6 = 5π/6

The angle 5π/6 is co-terminal with 41π/6.

3 0
4 years ago
Make a number that has a 6 that is 10 times the value of the digit 6 in 165,438 Comparing digits in whole numbers
Ipatiy [6.2K]

Answer:

An example of such number is 1,645,378 ( The value of 6 here is 600,000)

Step-by-step explanation:

Here, we want to compare digits in whole

numbers.

The value of 6 in 165,438 = 60,000

Now, we want a number that is 10 times the value of 6 here

10 times the value of 6 here will be 10 * 60,000 = 600,000

So we want a number which has the value of 6 in it as 600,000

The number in this case as an example can be ;

1,645,378

3 0
3 years ago
What is 6.25% written as a fraction in lowest terms?
aleksandr82 [10.1K]
6 is already a whole number so that stays the same and the decimal given is .25 which is a quarter and which as a fraction can be written as 1/4 so the answer is 6 1/4
8 0
3 years ago
Read 2 more answers
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