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
mamaluj [8]
3 years ago
13

Rationalize the denominator of (click photo)

Mathematics
1 answer:
Ede4ka [16]3 years ago
6 0
\frac{\sqrt{-49}}{(7-2i)-(4+9i)}=\\
\frac{\sqrt{-1*7*7}}{3-11i}=\\
\frac{7i}{3-11i}*\frac{3+11i}{3+11i}=\\
\frac{(7i)*(3+11i)}{3^2-(11i)^2}=\\
\frac{21i+77i^2}{9+121}=\\
\frac{21i-77}{130}=\\
\frac{-77+21i}{130}

so it is the last option
You might be interested in
If x is 6, then 7x = _____.
maksim [4K]

Answer:

7×6

=42

hope this helps you

4 0
2 years ago
Read 2 more answers
Is negative 108.8 rational?
lord [1]

The number -108.8 is a rational number

<h3>How to determine if the number is rational?</h3>

The number is given as:

negative 108.8

Rewrite properly as:

-108.8

Rational number have terminating decimals, and they can be represented as fractions.

The fraction equivalent of -108.8 is -1088/10

Hence, the number -108.8 is a rational number

Read more about rational numbers at:

brainly.com/question/1535013

#SPJ1

8 0
1 year ago
On a quiz, Tom received 2 points for each correct spelling word, and 4 points for each correct definition, Tom received 80 point
Lesechka [4]

Answer:

Tom got 20 words correct and 30 definitions correct

Step-by-step explanation:

6 0
2 years ago
The ratio of areas between two similar triangles is 1:4. if one side of the smaller triangle is 2 units, find the measure of the
dimaraw [331]
1:4
smaller side = 2
bigger side = 8 since 2/8 = 1/4
1/4 = 2/x
x=4*2=8
5 0
3 years ago
Comparing Order of Magnitude A biologist estimated the number of cells in a culture sample as 1.3 × 102. One week later, he look
Assoli18 [71]

Answer:

3 * 10^3 in scientific notation.

3,000 in standard notation.

Step-by-step explanation:

We divide:

3.9 *10^5 / 1.3 * 10^2

= ( 3.9/1.3) * (10^5 / 10^2)

= 3 * 10(5-2)

= 3 * 10^3.

This  equals 3 * 1,000 = 3000.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Solve for x.5(x – 10) = 30 – 15x
    15·1 answer
  • Evaluate the expression <br> 2⋅(3^6⋅3^−5)<br><br> a) 2/3<br> b) 3<br> c) 6<br> d) 18
    8·2 answers
  • John wants to make two frames for his artwork. One frame requires 3 1/2 feet of molding the other requires 4 2/3 feet of the sam
    8·1 answer
  • 1. Solve for p
    9·1 answer
  • Your bank gives you a special loan of $112,000. At the end of 30 years, you will pay the bank $176,400 in simple interest. What
    5·2 answers
  • You chose a college loan plan that is compounded annually. You take out $10,000 on the loan, and it has an interest rate of 5.75
    7·1 answer
  • The Volume of a cube is 231 cubic inches. what is the closest to the length of each edge of the cube?
    5·1 answer
  • Pls help will get awarded
    10·2 answers
  • An expression is shown below:
    9·2 answers
  • Find the volume of the composite figure below round your answer to the nearest whole number
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!