What is the sum of square root of -2 and square root of -18?
Answers
Answer:
4 Square root 2i
Step-by-step explanation:
if you're ed then this the answer I hope this helps
√-2 = √(-1*2) = √-1 * √2 = i√2 Recall square root of -1 = i
√-18 = √(-1*18) = √-1 * √1`8 = i√18 Recall square root of -1 = i
But √18 = √(9*2) = √9 * √2= 3√2
√-18 = i√18= i(3√2) = 3i√2
√-2 + √-18 = i√2 + 3i√2 = (i + 3i)√2 = 4i√2
So the sum is 4i√2, where i = √-1
Hope this explains it.
Related Questions
Use the formula for computing future value using compound interest to determine the value of an account at the end of 6 years if a principal amount of $6,000 is deposited in an account at an annual interest rate of 6% and the interest is compounded quarterly.
1 point1) Taylor and her family took a road trip. She explains that the equation y =60x describes the proportional relationship between the number of miles,y, her family traveled, to the number of hours, x, the trip took. Whichstatement represents the same proportional relationship? *Taylor's family traveled 50 miles in 1 hour.Taylor's family traveled 120 miles in 2 hours.Taylor's family traveled 180 miles in 4 hours.Taylor's family traveled 200 miles in 5 hours.
Solve by factoring. x2 - 49 = 0
I need help pleasee
Answers
4x + 6 = 94
4(x + 6) = 94
x + 6 = 4(94)
Answers
Answer:
Step-by-step explanation: its the first answer cause i did this a bit ago
so i remember
Answers
Answer:
Step-by-step explanation:
(x+5)/2 = 6
x + 5 = 12
x = 7
(y + 2)/2= 4
y + 2 = 8
y = 6
(7, 6)
Answers
Answer:
24 and 48
Step-by-step explanation:
Let's let the two numbers be a and b.
Their sum is 72. So:
One number (let's use a) is two times another (b). In other words:
We have a system of equations. We can solve by substituting the second equation into the first. So:
Combine like terms:
Divide both sides by 3:
So, one of the numbers is 24.
Since their sum is 72, this means that the other number is 72-24 or 48.
So, our two numbers is 24 and 48.
And we're done!
What is the lower bound?
Answers
The lower bound of the number 6358 when rounded to the nearest one (nearest whole number) remains 6358 since it is already a whole number.
Rounding a number to the nearest one implies that we are rounding it to the nearest whole number or integer. In this case, the number 6358 was rounded to the nearest whole number, which means we want to find the lower bound of this rounded value.
When we round 6358 to the nearest whole number, we find that it becomes 6358 itself because it is already a whole number. Therefore, the lower bound of the rounded value is the same as the original value, which is 6358.
In summary, when 6358 is rounded to the nearest one (nearest whole number or integer), the lower bound of the rounded value is also 6358 because the original number is already a whole number. There is no change in the value when rounding to the nearest one in this case.
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Answers
The equation to determine the total cost for playing handball is
f ( x ) = 15x + 150
where x is the number of times Roman plays
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the number of times Roman plays be = x
Now , the initial amount Roman paid to join the club = $ 150
The additional amount Roman pays for each play = $ 15
So , the equation will be
The total additional amount Roman pays if he plays x number of times is =
number of times Roman plays x additional amount Roman pays for each play
Total additional amount Roman pays if he plays x number of times is = 15x
So , the total cost of playing handball be f ( x ) , where x is the number of times Roman plays
Now , the equation will be
The total cost of playing handball f ( x ) = initial amount Roman paid + Total additional amount Roman pays
The total cost of playing handball f ( x ) = 150 + 15x
Therefore , the equation is f ( x ) = 15x + 150
Hence , The equation to determine the total cost for playing handball is
f ( x ) = 15x + 150
where x is the number of times Roman plays
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