1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
patriot [66]
2 years ago
14

Is he square root of -144 rational or irrational?

Mathematics
1 answer:
gladu [14]2 years ago
3 0

Answer:

Step-by-step explanation:

Neither.

It is a complex number. The - sign is the culprit. sqrt(-144) = i * sqrt(144) = 12 i

The "i" is an imaginary representation for the square root of -1. It is a definition for sqrt(-1). So a new category of number has been created. The ancients would have been profoundly surprised to learn that such a thing existed.

You might be interested in
Write the sum or difference in the standard form a + bi. ( 7 + 5i) - ( -9 + i)
Veseljchak [2.6K]
(7 + 5i) - ( -9 + i)
= 7 + 5i - (-9) - (i)
= 7 + 5i + 9 - i
= 16 + 4i

= 4i + 16
3 0
3 years ago
The figure below shows a shaded rectangular region inside a large rectangle:
pshichka [43]

Answer:

b. 58%

Step-by-step explanation:

Calculate the area of the entire rectangle using the formula A = lw.

The lowercase "L" is for length.

"w" is for width.

The lighter square is 10 units long by 5 inches wide.

A = lw

A = (10 in)(5 in)   Multiply

A = 50 in²

Calculate the area for the shaded rectangle, 7 inches by 3 inches.

A = lw

A = (7 in)(3 in)    Multiply

A = 21 in²

Calculate the area for the non-shaded region by subtracting the shaded area from the total area.

50 in² - 21 in² = 29 in²

The chance that a point in the large rectangle will NOT be in the shaded region is 29/50.

Convert this fraction to decimal form by using a calculator. Divide the top number by the bottom number.

29/50 = 0.58

0.58 is in decimal form. To convert it to a percentage, multiply the number by 100.

0.58 = 58%

Therefore the probability that a point chosen inside the large rectangle is not in the shaded region is 58%.

5 0
3 years ago
6 of 10 equal pieces is the same as 60 of 100 equal pieces and ___ of 5 equal pieces?
gizmo_the_mogwai [7]
3 of 5 because you can halve each number for example 6 can be halved to make 3 and 10 can be halved to make 5
4 0
3 years ago
The surface area (SA) of a cube with a as the length of each of its sides is given by the formula SA=6a^2 If the surface area is
slava [35]

So to rewrite it so that we can find the side, we just need to isolate the a variable.


SA=6a^2


So firstly, divide by 6 on both sides of the equation: \frac{SA}{6} =a^2


Next, square root each side, and your answer should be \sqrt{\frac{SA}{6}} =a

3 0
3 years ago
Read 2 more answers
HELP PLEASSEEE IT REALLY URGENT!!!!<br><br> PLEASE ONLY ANSWER IF YOU ARE CONFIDENT!
Dmitry [639]

Answer:

B. 12.5 feet below the surface of the water

Step-by-step explanation:

-20 + (-32.5) + 40

40 - 52.5

= -12.5 feet

= 12.5 feet below the water

6 0
2 years ago
Other questions:
  • A random sample of 25 round trip flights between Philadelphia and Dallas has an average airfare of 393.50 with a sample Standard
    5·1 answer
  • What is the median for this data set?
    15·1 answer
  • A biker rides for h hours at a speed of s miles per hour and travels d miles. Which equation models the relationship?
    10·1 answer
  • If b=55, then 45−7b+14+17b =
    6·1 answer
  • PLEASE HELP IM ON A TIMER IM CRYING RIGHT NOW!
    9·1 answer
  • 3) What is the area of this triangle?<br> 12<br> 20 -<br> 1<br> I
    13·1 answer
  • Cassie buys a soccer ball that cost 3249 she gives the store clerk $40 how much change should she get back
    9·1 answer
  • you want to obtain a sample to estimate a population proportion. at this point in time, you have no reasonable preliminary estim
    8·1 answer
  • Tickets for a play at the community theater cost $8 for children and $20 for adults. A total of 300 tickets have been sold for $
    6·1 answer
  • WILL GIVE BRAINLY,5 STARS,AND THANK<br><br> 320/40 = 32 tens / 4 tens
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!