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
igor_vitrenko [27]
2 years ago
14

Simplify the expression below as much as possible. (9+81) + (4 - 7i) - (9-6i) O A. 4-5i O B. 4+9i O c. 4 + 21i O D. 4 + 7i​

Mathematics
1 answer:
SCORPION-xisa [38]2 years ago
4 0

9514 1404 393

Answer:

  D.  4 +7i

Step-by-step explanation:

Combine like terms.

  (9 +8i) +(4 -7i) -(9 -6i) = (9 +4 -9) +(8 -7 -(-6))i = 4+7i

You might be interested in
Percentage of 50 shirts is 35 shirts
Katyanochek1 [597]

It would be 70% I think
6 0
3 years ago
GEOMETRY// Area? Also please provide an explanation(:
Zina [86]

Answer:

A = 80

Step-by-step explanation:

B = 8

H = 10

Area of a Parallelogram = B x H = 8 x 10 = 80

8 0
3 years ago
Anyone know what this means
qaws [65]

Answer:

Positive exponent

Step-by-step explanation:

Like x root 1 , 2 , 3 etc

If it said negative exponent then x root -1, -2 etc etc.

6 0
2 years ago
Read 2 more answers
Find two numbers whose sum is -7 and whose difference is -1. Your answer is:
Katena32 [7]

-3 & -4;

-3 + (-4) = 7

-3-(-4) = -3+4 = 1

3 0
3 years ago
Two consecutive positive numbers are such that the sum of their squares is 113. find the two numbers
Naya [18.7K]

Answer: 7 and 8

<u>Step-by-step explanation:</u>

Let x represent the first number, then x + 1 is the other number.

(x)² + (x + 1)² = 113

x²  +  x² + 2x + 1 = 113    <em>expanded (x + 1)²</em>

2x² + 2x + 1 = 113          <em>added like terms</em>

2x² + 2x - 112 = 0        <em>subtracted 113 from both sides</em>

x² + x - 56 = 0 <em>           divided both sides by 2</em>

(x + 8) (x - 7) = 0        <em>factored polynomial</em>

x + 8 = 0   x - 7 = 0    <em>applied zero product property</em>

x = -8     x = 7  <em>          solved for x</em>

  ↓

not valid since the restriction is that x > 0 <em>(a positive number)</em>

So, x = 7     and     x + 1 = (7) + 1   = 8

8 0
3 years ago
Other questions:
  • PLEASE HELP ASAP !! (Picture included)
    10·1 answer
  • Suppose you are adding 43 and 28 will you regroup?
    7·1 answer
  • Select the expression that is equivalent to (picture)
    9·1 answer
  • A cookie recipe uses V2 teaspoon of vanilla with 3/4 cups of flour. How
    10·1 answer
  • How to find the surface area of a prism
    9·1 answer
  • 1.) How many dessert combinations does Megan have?
    8·1 answer
  • does anyone know the questions and answers for FLVS MATH 7 grade DBA 3.00 module??? someone please help instead of telling me to
    7·1 answer
  • Find the area. The figure is not drawn to scale.
    9·1 answer
  • Which group of numbers is ordered from greatest to least?​
    8·2 answers
  • F(x)=x^2+1 and g(x)= [x-1]\sqrt{x}[/x-1] state the domain and find fog and​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!