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Kobotan [32]
3 years ago
5

Simplify the square root of -121?

Mathematics
2 answers:
poizon [28]3 years ago
8 0

Answer:

11<em>i</em>

Step-by-step explanation:

first you have to get a postive root.

\sqrt{-121} \\ \sqrt{-1}  \sqrt{121} \\

then you solve the square roots from there, keeping in mind the imaginary number answer to the square root of -1, <em>i</em>.

\sqrt{-1} = i\\ \sqrt{121} =11\\ 11i

SCORPION-xisa [38]3 years ago
4 0
The answer to this question in 24 I think I’m not for sure
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Answer QUICK! FOR 25 POINTS. First, determine the range of the data without the outlier.
vovikov84 [41]

Answer:

12

Step-by-step explanation:

hope it helps

3 0
2 years ago
Irina rode her bike to work at an average speed of 16 miles per hour. It started to rain, so she got a ride home along the same
Sedaia [141]

Answer:

0.7 hours

Step-by-step explanation:

Given that Irina was able to make the same distance from work to home in 0.4 of an hour at 27 miles per hour, we can use this rate and time to find the distance she travels to and from work using the general formula:

d = rt, where d=distance, r = rate and t = time

d = 27(0.4) = 10.8 miles

Since the distance from Irina's home to work is 10.8 miles, we can again use the formula 'd = rt' to find the time it takes her to bike to work at a rate of 16 miles per hour and solving for time, 't':

10.8 = (16)t

t = 0.7 hours

3 0
3 years ago
A problem states: "There are 2 more horses than cows in a field. There are 15 animals in the field in all. How many horses are t
mash [69]
Let h =  the number of horses in the field
Let c =  number of cows in the field

There are 2 more horses than cows in the field. Therefore
h = c + 2
 or
 c = h - 2               (1)

There are 15  animals in the field. Therefore
h + c = 15              (2)

Substitute (1) into (2).
h + (h - 2) = 15
2h - 2 = 15

Answer:
The correct equation is 
2h - 2 = 15
4 0
3 years ago
Read 2 more answers
What is the precent of 15 is 12
kati45 [8]
100%/x%=12/15
<span>(100/x)*x=(12/15)*x       - </span>we multiply both sides of the equation by x
<span>100=0.8*x       - </span>we divide both sides of the equation by (0.8) to get x
<span>100/0.8=x </span>
<span>125=x </span>
<span>x=125

so 125%</span>
8 0
3 years ago
Read 2 more answers
Two shops, Waitroze and Budgins sell the same brand of cans of soup but with different offers.
Goshia [24]

Answer:

24 cans at Waitrose would be £10.05.

24 cans at Budgins would be £11.56.

Step-by-step explanation:

Times the waitrose offer by 3

Times the budgins offer by 4

Hope that helped. x

6 0
2 years ago
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