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
A pair of shoes at Nordstrom‘s costs $120. The shoes are on sale for 15% off. You have a coupon that allows you to take an addit
iVinArrow [24]
$120 with 25% taken off of it would be $90 !
3 0
3 years ago
A right rectangular pyramid is sliced parallel to the base, as shown.
Natali5045456 [20]
#1 15cm^2. ====> Good Luck! <====
6 0
3 years ago
A cruise ship is traveling south going approximately 22 mph when it hits the Gulf Stream flowing east at 4 mph. Which expression
alexira [117]
<h2>Hello!</h2>

The answer is:

The correct option is

a) Resultant=\sqrt{22^{2} +4^{2} }

<h2>Why?</h2>

Since a right triangle is formed, we can calculate the resultant force using the Pythagorean Theorem which states that:

c=\sqrt{a^{2}+b^{2}}

Where,

c, is the hypothenuse.

a, is one triangle leg.

b, is the other triangle leg.

So, we are given the information:

a=22mph

b=4mph

So, calculating the resultant force (hypothenuse), we have:

Resultant=\sqrt{22^{2} +4^{2} }

Hence, the expression that would find the result velocity is:

a) [tex]Resultant=\sqrt{22^{2} +4^{2} }[/tex]

Have a nice day!

4 0
3 years ago
Guys Can you please help me with this math
Likurg_2 [28]

Answer:

You can buy up to 6 candy bars with a soda

Step-by-step explanation:

7$-2.50$=4.50$

4.50$ / .75$ = 6

4 0
3 years ago
3x−8 ≤ 23 OR −4x+26≥6 find x
ElenaW [278]

Answer:

3x-8<=23

3x<=23+8

3x< =31

X< = 10.3

or

-4x+26>=6

-4x>=-20

X>=5

6 0
3 years ago
Other questions:
  • Round 52,437 nearest hundreds
    5·2 answers
  • 8x-20 - 3x-1<br><br> finding c
    14·1 answer
  • You are looking at a convention bid that requires 100,000 square feet of meeting space. You have one room at 200 ft x 200 ft, an
    7·1 answer
  • The gas tank in Ava's car holds 17 gallons of gasoline. She can drive about 32 miles for each gallon. Which is the best estimate
    7·1 answer
  • Simplify the expression: 6 + 3(x + 4)
    15·2 answers
  • What is x in the equation
    14·2 answers
  • A store sells a package of 3 notebooks for $2. The point on the graph represents this ratio relationship. Which ordered pairs re
    11·1 answer
  • Daniel has a 3/4 pound bag of dog
    8·2 answers
  • I am thinking of two numbers. The sum of the two is 10 and the difference is 2
    15·1 answer
  • For the data set: 22, 40, 21, 18, 47, 22, 19, what is the mode?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!