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
vichka [17]
3 years ago
6

What is the value of (–7 + 3i) + (2 – 6i)?

Mathematics
2 answers:
UkoKoshka [18]3 years ago
7 0

Answer:

d

Step-by-step explanation:

(-7 + 3i) + (2-6i)

=-7 + 3i + 2 -6i

=(-7+2) + (3i -6i)

=-5 -3i

balandron [24]3 years ago
7 0

Answer:

(-7+3I)+(2-6I)

= -7+3i+2-6i

= -5-3I

so answer is d ie -5-3i

You might be interested in
The population of a suburb grows at a rate proportional to the population. Suppose the population doubles in size from 3000 to 6
frozen [14]

Answer:

P(t) = 3000e^{0.1155t}

Step-by-step explanation:

The growth of the population can be modeled by the following differential equation:

\frac{dP}{dt} = rP

Where r is the growth rate, P is the population, and t is the time measures in months.

I am going to solve the above differential equation with the separation of variables method.

\frac{dP}{P} = rdt

Integrating both sides:

ln P = rt + P(0)

Where P(0) is the initial condition

We need to isolate P in this equation, so we do this

e^{ln P} = e^{rt + P(0)}

So

P(t) = P(0)e^{rt}

The problem states that P(0)=3000, so:

P(t) = 3000e^{rt}

The problem wants us to find the value of r:

It states that the population doubles in size from 3000 to 6000 in a 6- month period, meaning that P(6) = 6000. So

6000 = 3000e^{6r}

e^{6r} = 2

To isolate 6r, we apply ln to both sides.

ln (e^{6r}) = ln 2

6r = 0.693

r = \frac{0.693}{6}

r = 0.1155

The particular solution to the differential equation with the initial condition P(0)=3000 is:

P(t) = 3000e^{0.1155t}

5 0
3 years ago
Simplify the following:
Charra [1.4K]
1) 4x + 5
2) 14w2 - 4w
3) -x + 19
4) 19x - 16
5) -x2 - x
6) 11a2b - 12ab2
5 0
3 years ago
Henry draws an obtuse triangle how many obtuse angles does Henry's triangle have? Please eye help
Travka [436]
The sum of all three angles in any triangle is always 180 degrees. So in obtuse triangle there is only one obtuse angle (more than 90 degrees). If we have for example an obtuse angle of 91 degrees, then two other angles have to fit in 89 degrees which makes it impossible for any of them to be obtuse.
8 0
3 years ago
Help plz brainliest for first answer and best answer
Leto [7]

Answer:

C.15

Step-by-step explanation:

one box has 5 chocolates so 3*5=15

7 0
3 years ago
18 is 25% of what number? A) 36
Nezavi [6.7K]

Answer:

c) 72

Step-by-step explanation:

multiply 18 by 4

5 0
3 years ago
Read 2 more answers
Other questions:
  • −3(2−0.4y)+5.6=0.4(3y+1)
    9·1 answer
  • I don’t understand this Help please ASAP!!!
    11·1 answer
  • X=r-h/y solve for h and then for r
    14·2 answers
  • Sarah is selling cookies and brownies to raise money for her school trip. She needs to raise at least $350. She is selling cooki
    14·2 answers
  • The distance of planet Saturn from the Sun is 1.5 ⋅ 109 kilometers, and the distance of planet Venus from the Sun is 1.1 ⋅ 108 k
    8·1 answer
  • A company makes batteries with an average life span of 300 hours with a standard deviation of 75 hours. Assuming the distributio
    12·1 answer
  • How many different ways can the letters of the word "CHORD" be arranged?
    6·1 answer
  • Find all the missing measurement​
    11·1 answer
  • At the grocery store ,8 oranges cost $4 what is the cost for 9 oranges ?
    15·2 answers
  • Work out the value of x
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!