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Paladinen [302]
3 years ago
12

15 POINTS HELP PLEASE

Mathematics
1 answer:
jenyasd209 [6]3 years ago
4 0

Answer:

C. 103/1/8

Step-by-step explanation:

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Solve the system using elimination.
Leona [35]

Answer:

the answer is A

Step-by-step explanation:

6 0
4 years ago
Do you answer for number two
kolezko [41]

Answer:

Letter B would be your answer because 20 feet ABOVE sea level is positve. 20 feet BELOW sea level is negative because you are decreasing from sea level. Then sea level would be zero because it is at its place , there is no measurment because sea level is flat

Step-by-step explanation:

8 0
3 years ago
Please help me answer this question
strojnjashka [21]

Answer:

  • modulus: 3√2
  • argument: -3π/4  (or 5π/4)

Step-by-step explanation:

The modulus is the magnitude of the complex number; the argument is its angle (usually in radians).

__

<h3>rectangular form</h3>

The complex number can be cleared from the denominator by multiplying numerator and denominator by its conjugate:

  \dfrac{-9+3i}{1-2i}=\dfrac{(-9+3i)(1+2i)}{(1-2i)(1+2i)}=\dfrac{-9+3i-18i-6}{1+4}=-3-3i

<h3>polar form</h3>

The magnitude of this number is the root of the sum of the squares of the real and imaginary parts:

  modulus = √((-3)² +(-3)²) = 3√2

The argument is the arctangent of the ratio of the imaginary part to the real part, taking quadrant into consideration.

  arg = arctan(-3/-3) = -3π/4  or  5π/4 . . . . radians

__

  modulus∠argument = (3√2)∠(-3π/4)

3 0
2 years ago
Someone help me with this pleaseeee!!!! I need help ASAP pleasee!!!
SVETLANKA909090 [29]

Answer:

36pi or 113.04

Step-by-step explanation:

V=pi times radius^2 times height

V= pi times 3^2 times 4

V= pi times 9 times 4

V= pi times 36   - ANSWER 1- 36pi

or you can continue...

V= 113.04 (3.14 used as pi)

note(don't forget PEMDAS)

6 0
3 years ago
A utility company hires pollsters to knock on random doors in different parts of town to survey residents about the
exis [7]

Answer:

B: Yes, it is biased. Some of the residents who are surveyed may not want to respond to someone who knocks at their door.

Step-by-step explanation: Just took a quiz and past. Edge2020

4 0
3 years ago
Read 2 more answers
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