What is 4-3i minus 6+3i?

Answers

Answer 1

Answer:

-2

Step-by-step explanation:


Related Questions

PLS HELP ITS TIMED!!!
In 5 years, radioactivity reduces the mass of a 100-gram sample of an element to 75 grams. Find the constant k for this element for t in years, the write the equation for modeling this exponential decay

Answers

E
=
h
f
=
6.626
×
10

34
J

s
×
5.00
×
10
14
s

1
=
3.31
×
10

19
J
The energy is
3.31
×
10

19
J
.

          Value of constant 'k' = -0.041097

          Equation modeling the exponential decay → [tex]\text{ln}\frac{N}{N_0}=-0.41097t[/tex]

Rule for the radioactive decay: Rule for the radioactive decay is given by the expression,

         [tex]\text{ln}\frac{N}{N_0}=-kt[/tex]

         Here, N = Amount remaining after 't' years

                   N₀ = Initial amount of the radioactive element

                    k = Constant

                    t = Period of decay

Given in the question,

N = 100 gms N₀ = 75 gms  t = 5 years

Substitute these values in the expression for the value of 'k',

[tex]\text{ln}\frac{75}{100}=-7k[/tex]

[tex]k=\frac{1}{7}[(\text{ln}(75)-\text{ln}(100)][/tex]

[tex]k=\frac{1}{7}[4.317488-4.605170][/tex]

k = -0.041097

Equation modeling the exponential decay → [tex]\text{ln}\frac{N}{N_0}=-0.41097t[/tex]

  Therefore, value of constant 'k' = -0.041097

               Equation modeling the exponential decay → [tex]\text{ln}\frac{N}{N_0}=-0.41097t[/tex]

Learn more about the radioactive decay here,

https://brainly.com/question/9660135?referrer=searchResults

h (x) = x + 4; Find h (x – 3)

Answers

Answer:

The answer is option 2.

Step-by-step explanation:

You have to substitute the expressions into x :

h(x) = x + 4

h(x - 3) = (x - 3) + 4

h(x - 3) = x - 3 + 4

h(x - 3) = x + 1

Mai is making personal pizzas for a party she uses 10 ounces of cheese to make four pizzas at this rate how much cheese will she need to make 18 pizzas?

Answers

Answer: 45

Step-by-step explanation:

From the question, we are informed that Mai is making personal pizzas for a party and that she uses 10 ounces of cheese to make four pizzas. The number of ounce per pizza will be:

= 10/4 = 2.50 ounces per pizza

Therefore, the number of ounces of cheese that will be needed to make 18 pizzas will be:

= 2.50 × 18

= 45 ounces of cheese

Find the unit rate.
$11.40 for 6 gallons

Answers

Answer:

$ 1.90 for 1 Gallon

Step-by-step explanation:

11.40/6 = 1.90

another way you can show the answer is: $1.90/1 Gal.

simplify. enter the answer in the box. PLEASE I NEED IT ASAP

Answers

Answer:

21√7

Step-by-step explanation:

Pls help me..... It due ASAP

Answers

the answer is D.
3 and 6

Answer:

D

Step-by-step explanation:

D is the right answer for the question

I need help with these questions! :)

Last word is sorta cut off but it’s musee

Answers

Answer:

17. We study French

a. at school

b. to the building

c. at the theatre

18. Philippe watches TV in

a. the bathroom

b. the street

c. the living room

19. the car and the bikes are in

a. the garage

b. the living room

c. the kitchen

20. There is a good cinema and a Mexican restaurant in my

a. garage

b. district

c. Museum

can you please give me brainliest this was very hard

thanks

-kitten

Which of these curves on the graph below could indicate a function?

Answers

Answer:

A

Step-by-step explanation:

Vertical Line test will determine if a graph is a function or not

Diana and Sujit clean homes for a summer job. They charge $70 for the job plus 5% for supplies. A homeowner gave them a 15% tip. How much money did they receive for their job?

Answers

Answer:

Yes! Total received was $84.525

Step-by-step explanation:

Note that 5% is another way of writing

5

100

Charge:

$

70

+

(

5

100

×

70

)

=

$

73.5

15% tip

15

100

×

Charge  

 

15

100

×

$

73.5

=

$

11.025

Total income:

$

73.5

+

$

11.025

84.525

=

$Did they receive more than $82

Yes

Answer:

Total received was $84.52

What is the length of the each side?
please someone help

Answers

Answer:

each side 5

Step-by-step explanation:

with 2 equal internal base angles, we know this is an isosceles triangle

this being isosceles also tells us that the 2 opposite sides are also equal

Therefore: x + 2 = 3x - 4

solving for x

x - 3x = -4 -2

-2x = -6

x = -6 ÷ -2

× = 3

substituting x:

x +2 = 3 + 2 = 5

3x-4 = 9 - 4 = 5

There are 8 boys and 12 girls in mr.Rossi’s class. One student Will be chosen randomly to represent the class at the conference of seventh grade. What is the probability that the representative will be a girl?

Answers

Step-by-step explanation:

[tex]8 + 12 = 20 \\ probability \: = expected \: outcome \div possible \: outcome \\ \\ \\ \frac{12}{20 } = \frac{3}{4} [/tex]

On a team, 7 girls and 2 boys scored a total of 64 points. The difference between the number of points scored by the 7 girls and the number of points scored by the 2 boys is 48. Each girl scored the same number of points and each boy scored the same number of points. Find the number of points scored by each girl and each boy.

Answers

Answer:

Each girl scores 8 points while each boy scores 4 points

Step-by-step explanation:

Let the number of point scored by the 7 girls and 2 boys be x and y respectively.

Thus, since 7 girls and 2 boys scored a total of 64 points, then;

7x + 2y = 64 - - - (1)

Also, difference between the number of points scored by the 7 girls and the number of points scored by the 2 boys is 48. Thus;

7x - 2y = 48 - - - (2)

Add eq(1) to (eq 2) to get;

14x = 64 + 48

14x = 112

x = 112/14

x = 8

Put 8 for x in eq(1) to get;

7(8) + 2y = 64

56 + 2y = 64

2y = 64 - 56

2y = 8

y = 8/2

y = 4

Thus,each girl scores 8 points while each boy scores 4 points

-. The ratio of boys to girls at a birthday party is
4:5. If there are 35 girls, how many boys are
there?

Answers

Answer:

28

Step-by-step explanation:

The 5 part of the ratio represents 35 girls , then

35 ÷ 5 = 7 ← value of 1 part of the ratio, then

4 parts = 4 × 7 = 28 ← number of boys

Answer:

28 boys

Step-by-step explanation:

4*35=140

140/5=28

so 28 boys

You work as a taxi driver. you earn an average of $75 in tips everyday.
Which graph best represents the relationship between time and the cumulative total of your tips?

Answers

Answer:

A

Step-by-step explanation:

it should be A because if

x-axis represents the time, at the beginning of the day x = 0 and

y-axis the $, at the beginning of the day should be y= 0

Answer:

a linear graph would best represent the relationship

Step-by-step explanation:

just did the khan academy thing

10 points. Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I will report fake, incomplete, and wrong answer! Answer wisely will clear explanation!!

Answers

Answer:

The answer (in scientific notation) should be 1.8 x 10^2.

Step-by-step explanation:

(2 x 10^6) x (0.00009) = ?

(2 x 1,000,000) x (0.00009) = ?

2,000,000 x (0.00009) = 180

180 as a scientific notation is 1.8 x 10^2.

In the circus, a lion has been trained to jump through a ring of fire. The trainer measures the ring and calculates that it has a circumference of 6.28 meters. What is the ring's diameter?

Answers

Answer:

6.28 x 3.14 = 19.7192

Step-by-step explanation:

What is a force described by

Answers

Answer:

a force is described by its strength and by the direction in which it acts. -The strength of a force is measured in the SI unit called the Newton (N).

Step-by-step explanation:

push, strength, and ability

A sequence is recursively defined as a(n)=2a(n-2) for values of n>2. Find the seventh term of the sequence if a(1)=0 and a(2)=1

Answers

Answer:

a(7) = 21

Step-by-step explanation:

Using the recursive formula and a(1) = 0, a(2) = 1 , then

a(3) = a(2) + 2a(1) = 1 + 2(0) = 1 + 0 = 1

a(4) = a(3) + 2a(2) = 1 + 2(1) = 1 + 2 = 3

a(5) = a(4) + 2a(3) = 3 + 2(1) = 3 + 2 = 5

a(6) = a(5) + 2a(4) = 5 + 2(3) = 5 + 6 = 11

a(7) = a(6) + 2a(5) = 11 + 2(5) = 11 + 10 = 21


Savannah shoped 98 glass bowls to her mother. If she divided the bowls equally among
8 boxes, how many bowls did Savannah put in each box?

Answers

98 divided by 8 is 12 Remainder 2 you have to do long division
if you did 98 divided by 8 it would be 12.25 so Savannah put 12.25 bowls in each box

how do i find the mean and median for this line of numbers?
42,51,64,55,51,54,51,69

Answers

Answer:

52.5

Step-by-step explanation:

Arrange the data in an ascending order and the median is the middle value. If the number of values is an even number, the median will be the average of the two middle numbers.

Answer:

The mean is 47.875 and the median is 51

Explanation:

To find the mean you have to add up all of the numbers together, and then divide that number (383) by how many numbers there are (8) so then you would get 47.875. Now you have to find the median. To find the median you have to place the numbers from the lowest to the greatest which would be 42, 51, 51, 51, 55, 64, 69. Then you basically just pick the number in the middle which is 51, so 51 is the median.

What is the equation of the blue line?

Answers

Answer:

Step-by-step explanation:

The blue line is the translate in the direction of the red line by , and therefore has equation y = 3 ( x − 4 ) + 5 or y = 3 x − 7 .

The linear equation is y = -x - 1 for the graph of the linear equation where -1 is the slope of the linear equation and -1 is the y-intercept.

What is a linear equation?

It is defined as the relation between two variables if we plot the graph of the linear equation we will get a straight line.

If in the linear equation one variable is present then the equation is known as the linear equation in one variable.

As we can see from the graph of the linear equation:

The x-intercept a = -1

And the y-intercept b = -1

We know the linear equation in terms of a and b can be modeled:

[tex]\rm \frac{x}{a} +\frac{y}{b} =1\\\\\rm \frac{x}{-1} +\frac{y}{-1} =1\\\\[/tex]

x + y = -1

y = - x - 1

Thus, the linear equation is y = -x - 1 for the graph of the linear equation where -1 is the slope of the linear equation and -1 is the y-intercept.

Learn more about the linear equation here:

brainly.com/question/11897796

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HELP ASAP

a country's population in 1993 was 85 million.
In 1996 it was 90 million. Estimate
the population in 2015 using the exponential
growth formula. Round your answer to the
nearest million.

Answers

129 million I took the application already


Bridget and Caroline win some money and share it in the ratio 5:3. Bridget gets £65. How
much did they win in total?

Answers

Answer:

£104

Step-by-step explanation:

5:3 = 65:X

65÷5=13

X=13×3

x=39

total=65+39

total=104

PLEASE HELP ILL GIVE U BRAINLEST PLUS 50 POINTS IF U GET IT RIGHT

Answers

Answer:

[tex]-10x^{2}-9x-6[/tex]

Step-by-step explanation:

Combining like terms:

[tex]-7x^{2}-3x^{2}-10x+x-6[/tex]

[tex]-10x^{2}-9x-6[/tex]

-7X2-10x-6-3X2+X is the answer

Identify the scale factor when we scale up from Figure S to T. Just write the number.




Answers

Answer:

Scale factor = 4

Step-by-step explanation:

Scale factor = [tex]\frac{\text{Dimension of the image}}{\text{Dimension of preimage or original}}[/tex]

Since, S is being dilated with a scale factor to form T,

So, the figure S is the preimage and figure T will be the image,

Length of one side of image T = 8

Length of one side of preimage = 2

Therefore, Scale factor = [tex]\frac{8}{2}[/tex]

                                       = 4

Scale factor by which figure S has been dilated to form figure T is 4.    

there is 3/5 liter of milk left in a container. A child drinks 2/3 of it. How many liters of milk does the child drink

Answers

Answer:

6/15

Step-by-step explanation:

3/5*2/3=6/15

What is the solution to the equation? -3x + 7 = -2

Answers

The answer is 3 I just got done doing that exact question

(can someone give me like 300pts? Please and Thank u) Whats the square root of 5923?

Answers

-77 hope this helps you

draw a number line with the solution to :1/4 - 1/2

Answers

1/4 - 1/2 = -1/4 but 1/2 - 1/4 = 1/4

The Barber are keeping track of their family energy costs. It costs the Barbers $0.16 per week to run their dishwasher. How much will it cost them to run their dishwasher for 52 weeks

Answers

Answer:

It will cost them $8.32 to run their dishwasher for 52 weeks.

Step-by-step explanation:

With the information provided, you can say that the cost to run the dishwasher is equal to the cost per week for the number of weeks, which would be:

Total cost=$0.16*number of weeks

Since you want to determine the cost to run the dishwasher for 52 weeks, you can replace the number of weeks in the formula to get the answer:

Total cost=$0.16*52

Total cost=$8.32

According to this, the answer is that it will cost them $8.32 to run their dishwasher for 52 weeks.

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