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
Alecsey [184]
4 years ago
14

Simplify square root of negative 49.

Mathematics
1 answer:
sattari [20]4 years ago
7 0

Answer:is 7

Step-by-step explanation:

: As 7⋅7=49 it follows that 7 is the square root of 49.

You might be interested in
A tractor costs $20000 and depreciates in value by 15% per year. how much will the tractor be worth after 5 years?
Brut [27]

Answer:

$ 8874.11 after 5 years

Step-by-step explanation:

 Each year it is worth 85 % of its value

20 000 ( .85)^5 = 8874.11

7 0
2 years ago
8
tia_tia [17]

Answer:

8-6i

Step-by-step explanation:

Multiply out (3-i)^2 in order to find out which expression it is equivalent to.

1) Since the whole quantity is squared, write it out as (3-i)(3-i).

(3-i)^2\\(3-i)(3-i)

2) Multiply binomials by using the FOIL method. Multiply the terms that are listed first in each binomial, then the ones that are listed outermost when looking at both binomials, then innermost, and finally the last terms listed in each binomial. Simplify and combine like terms.

(3-i)(3-i)\\9 - 3i - 3i + i^2

9 - 6i + i^2

3)  i = \sqrt{-1}, so i ^2 must be (\sqrt{-1} )(\sqrt{-1}). Thus, i^2 is equivalent to -1. Knowing this, simplify and combine like terms.

9 - 6i + ((-\sqrt{1} )(\sqrt{-1} ))

9 - 6i -1\\8 - 6i

Thus, it is equivalent to  8 - 6i .

6 0
3 years ago
The average of 5 numbers is 33. If the average of first 2 numbers is 35 and that of last 2 is 31, then find the 3rd number.
-BARSIC- [3]
The answer is c. 33.
3 0
3 years ago
Read 2 more answers
Tile costs $28 per square meter. how much will it cost to cover the counter top with new tile?( 4.36 square meters)
marta [7]
Tile costs $28 per square meter. how much will it cost to cover the counter top with new tile?( 4.36 square meters)

28 x 4.36 = $122.08
5 0
3 years ago
My cats thoughts while she is just laying there with her face in my clothes:
nata0808 [166]

Answer:

ADORABLE!!

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Twenty-eight is 40% of _____a0.
    12·1 answer
  • Computer usage has increased over time. But has the increase been more linear or more exponential? In 1997, 22.2% of the populat
    12·1 answer
  • I WILL GIVE BRAINLIEST
    12·2 answers
  • (2/3)^3(1/5•2/3)^-3(1/5)^4 <br><br> PLS HELP
    10·1 answer
  • You work 40 hours per week and spend 5 hours per week commuting to and from work. Your friend works 56 hours per week and spends
    14·1 answer
  • Duncan has the space to plant, at most, 24 flower bulbs in his garden. Daffodil bulbs cost $3 each, and tulip bulbs cost $2 each
    5·1 answer
  • Brainliest badge you help me no kizzy
    10·2 answers
  • Original price: $72.00<br><br> Markdown: 33% please i rlly need help thanks mate
    12·1 answer
  • 5+ [x - {2y-(6x + y - 4) + 2x} - {x -(y - 2)}<br>solve it.<br>​
    9·1 answer
  • Hello! Please help me with this question. I’ll mark brainly! Thank you :)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!