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
ANTONII [103]
3 years ago
14

Please can someone help me ?

Mathematics
2 answers:
anygoal [31]3 years ago
5 0

Answer:

-3-5i

Step-by-step explanation:


Eddi Din [679]3 years ago
4 0

z = -14 + 21i / -2 - 4i


Rectangular form:

z = -14-14.5i


Exponential form:

z = 20.155644 × ei (-133°59'42″)


Polar form:

z = 20.155644 × (cos (-133°59'42″) + i sin (-133°59'42″))


Polar form - absolute value (modulus) and angle (argument):

r = |z| = 20.15564

φ = arg z = -133.99491° = -133°59'42″ = -0.74442π


Calculation steps


   Divide: 21i / (-2) = -10.5i

   Add: -14 + (-10.5i) = -14-10.5i

   Subtract: (-14-10.5i) - 4i = -14 + (-10.5-4)i = -14-14.5i




You might be interested in
In the given figure, in triangle ADE, AD = 5inches, AE = 4inches, DE = 3inches. Also, DB = 10inches and EC = 8inches. If triangl
JulsSmile [24]
The value of x (if it’s a side length) should be 6 inches
7 0
3 years ago
Math question please show work
garik1379 [7]

You calculate this using the Cosine Rule

x^2 = 60.5^2 + 226^2 - 2*60.5*226 cos 39

= 33484.42

x = 182.98

He threw the ball approximately 183 feet.

7 0
3 years ago
In the diagram, mZXYZ = 115° and mZWXY = 45°.
Allushta [10]

Step-by-step explanation:

mXYZ+mXYW=180°(being straight angle)

mXYW =180-115

mXYW=65

now,

mXWY+mWXY+mXYW=180°(sum of angle of triangle)

mXWY=180-110

mXWY=70°

hope it helps.

4 0
3 years ago
You buy 3 bags of sand and 5 bags of pea gravel for $26. In a second purchase (at the same prices), you buy 4 bags of sand for $
pickupchik [31]

Answer:

2z and 4y

Step-by-step explanation:

We first have to use the second purchase to figure this out, if 4 bags of sand is $8. We have to divide 8 by 4, which we get $2. We use this to find the bags of pea gravel. Since you bought 3 bags, 3 times 2 is 6. We subtract 6 from 26 leading to 20 dollars. We also buy 5 bags of pea gravel so we have two numbers, 20 and 5. We divide 20 and 5 and we get 4 dollars for 1 bag of pea gravel. If this is not what you meant I apologise.

6 0
3 years ago
PLS ANSWER THE FOLLOWING QUESTION AS QUICKLY AS POSSIBLE<br> PLSSSSSSSSSSSSSSSSSSSS
Vesnalui [34]

Answer:

120

Step-by-step explanation:

25 + 35 = 60

60 + 60 = 120

7 0
2 years ago
Other questions:
  • How can you tell when a pattern shows counting on by tens?
    9·1 answer
  • I need help with this question.
    8·2 answers
  • Identify the 4 basic transformation
    5·1 answer
  • A store allows customers to fill their own bags of candy. Troy decides he only wants chocolate-covered pretzels and gumdrops. Ch
    8·1 answer
  • PLEASE HELP I WILL MARK YOU AS BRAINLEST
    11·2 answers
  • Factorial – is the product of natural numbers, for example:
    14·1 answer
  • Please help me!!!!!!!!111
    13·1 answer
  • Lol i’m so sorry for spamming im just dumb. y=?x+?
    15·1 answer
  • What would be the second step in this problem? (3 + 4) 9 + 3 =
    14·2 answers
  • The table shows the ratio of people who ate a certain type of lunch to the total number of people who ate lunch. A total of 840
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!