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
andre [41]
3 years ago
5

PLEASE HELP Simplify the expression to a + bi form: √ 25- √ -25 – √ 36 – √ -4

Mathematics
1 answer:
klasskru [66]3 years ago
7 0

Answer:

-1+3i

Step-by-step explanation:

\sqrt{25}  -  \sqrt{ - 25}  -  \sqrt{36}  -  \sqrt{ - 4}

Sqr root of 25 and 36 are 5 and 6 respectively

Sqr root of -25 and -4 are 5i and 2i respectively

Combine like with like

5-6=-1

5i-2i=3i

-1+3i

You might be interested in
In two or more complete sentences explain how you would set up and solve the equation: Dan and Rick belong to different gyms. Da
olga55 [171]
The equation would be 40+15p=70+5p. You would subtract 5p from each side (15-5) and (5-5) and you'll have 40+10p=70. You would then subtract 40 from each side (70-40) and (40-40) to have 10p=30. You would divide by both of the sides by 10, you would end up with p=3. P is price training. The reason you divide and subtract on both sides is because you want the months to be on one side and the price training on the other side.
7 0
3 years ago
The standard diameter of a penny is 0.75 in. and the standard
Blababa [14]

Answer: .045

Step-by-step explanation:.75=.750 so, 750-705=.045

Hope this helps!

6 0
3 years ago
Write the standard equation for the circle.
Sidana [21]

Answer:

the first one

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

here (h, k) = (10, - 6) and r = 6, hence

(x - 10)² + (y - (- 6))² = 6², that is

(x - 10)² + (y + 6)² = 36

5 0
3 years ago
Mary Stahley invested $2500 in a 36-month certifi- cate of deposit (CD) that earned 8.5% annual simple interest. When the CD mat
nata0808 [166]

9514 1404 393

Answer:

  $13,916.24

Step-by-step explanation:

First, we need to find the value of the CD at maturity.

  A = P(1 +rt) . . . . simple interest rate r for t years

  A = $2500(1 +0.085·3) = $2500×1.255 = $3137.50

__

Now, we can find the value of the account with compound interest.

  A = P(1 +r)^t . . . . . rate r compounded annually for t years

  A = $3137.50 × 1.18^9 = $13,916.24

The mutual fund was worth $13,916.24 after 9 years.

3 0
2 years ago
Divide. 3.2 ÷ 0.8 help me e pleaseeeeeeeeeeee !!!!!!
Talja [164]
\frac{3.2}{0.8} = \frac{32}{8} = \frac{4\times 8}{8} = 4
4 0
3 years ago
Read 2 more answers
Other questions:
  • Jon is working on a city councilperson’s election campaign. He wants to survey potential voters about their opinions. Which is t
    8·2 answers
  • Determine the unknown measures of the triangle shown. Round to the nearest tenth, if necessary. x = in. y ≈ ° z ≈ °
    11·2 answers
  • Lainey bought a set of 20 markers for $6 dollar sign, 6. What is the cost of 1 marker?
    5·2 answers
  • Simplify Negative three and one-half minus negative twelve and one-fourth.
    9·2 answers
  • Find the remainder when x51+x is divided by x+1
    11·1 answer
  •  PLEASE HELP !!!!!!!!!! Alexia spent 3 minutes working on each of her math problems and 4 minutes on each of her science problem
    15·2 answers
  • What rotation is shown below?
    7·2 answers
  • What’s the equation from each line from the table?
    6·1 answer
  • PLEASE SOMEONE HELP ME WITH NUMBER 2. Only PLEASE I NEED HELP!!!!!
    6·2 answers
  • suppose the mean height for men is 70 inches with a standard deviation of 2 inches. What percentage of men are less than 74 inch
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!