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
sergejj [24]
3 years ago
5

Express (2-I) - (-1+3i) in the form of a + ib.

Mathematics
2 answers:
oksian1 [2.3K]3 years ago
7 0

Answer:

=3-4i

Step-by-step explanation:

So we have:

(2-i)-(-1+3i)

First, distribute:

=(2-i)+1-3i

Combine like terms:

=-i-3i+2+1

Add:

=-4i+3

So, in the a+bi format, we will have:

=3-4i

BartSMP [9]3 years ago
6 0

Answer:

3 -4i

Step-by-step explanation:

(2-i) - (-1+3i)

Distribute the minus sign

(2-i) + 1-3i

Combine like terms

3 -4i

You might be interested in
10. Which statement is true?
NISA [10]

Answer:

A

Step-by-step explanation:

because absolute value is always positive as the answer and it's a because 4 is already a positive so it will be a positive again

6 0
3 years ago
Read 2 more answers
A 20” Square is being copied at 25%. What are the dimensions of the New square after being copied?
Triss [41]

Answer:

5"

Step-by-step explanation:

You are copying a square of side 20 inches into a smaller version of it that is exactly 25% of the original size.

Notice that 25% can be written in fraction form as: \frac{25}{100} = \frac{1}{4}

This gives us a clue about how to reduce the original dimension: "multiply it by \frac{1}{4}, which is the same as divide it by 4:

20" * \frac{1}{4} = \frac{20"}{4} = 5"

6 0
3 years ago
What is the volume of a cone (in cubic inches) with a radius of 6 inches and a height of 3 inches? Use 3.14 for π. Round your an
sesenic [268]
\bf \textit{volume of a cone}\\\\
V=\cfrac{\pi r^2 h}{3}\quad 
\begin{cases}
r=radius\\
h=height\\
-----\\
r=6\\
h=3
\end{cases}\implies V=\cfrac{\pi \cdot 6^2\cdot 3}{3}
8 0
4 years ago
What is the slope of this line?
alisha [4.7K]

Answer:

A line is increasing if it goes up from left to right. The slope is positive, i.e. m > 0 {\displaystyle m>0} .

A line is decreasing if it goes down from left to right. The slope is negative, i.e. m < 0 {\displaystyle m<0} .

If a line is horizontal the slope is zero. This is a constant function.

If a line is vertical the slope is undefined (see below).

7 0
3 years ago
Explain the effect that "h" has on the function f(x) = a(x - h)2 + k.
saw5 [17]
The expression given by f(x)=a(x-h)^2+k is a the equation of a vertex where (h,k) is the vertex. The importance of h is that it represents the x-intercept, the lowest or the highest point of the graph of the expression. This is a very important factor when determining the turning points of parabolas
6 0
3 years ago
Other questions:
  • One positive integer is 3 less than twice another. the sum of their squares is 170
    9·1 answer
  • Circumference and rotations
    9·1 answer
  • What number can be used to complete the volume statement for the cone?
    6·2 answers
  • The equation 3(x + 7) - 4(x + 3) = 0 can be solved to find the value of x
    11·2 answers
  • Identify the range of the function shown in this graph
    11·1 answer
  • Plz help im so confused plzzzzzzzzzz
    10·1 answer
  • Lauren wants to save $300,000 to buy a restaurant 10 years from now. How much should she deposit
    11·1 answer
  • In 1903, a paper published by Abigail Camp Dimon, discussed the effect of environment on the shape and form of two sea snail spe
    13·1 answer
  • What is the GCF of 15 and 30
    13·2 answers
  • A kite is flying at the end of a 20-meter string. If the string makes an angle of 55° with the ground, how many meters above the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!