Simply the expression

Simply The Expression

Answers

Answer 1

Answer:

15i

Step-by-step explanation:

-3+7i+3+8i

0+15i

Answer 2

Answer:

Step-by-step explanation:

(-3+7i)-(-3-8i)= -3+7i+3+8i=15i


Related Questions

A lion eats 462 pounds of food in a week.If the lion eats the same amount of food each day,how many pounds does a lion eat per day

Answers

Answer:

The lion eats 66 pounds of food per day

Step-by-step explanation:

At a banquet 216 guests sit at 18 tables. Each table has the same number of guests. How many guests per table?
A. 8 guests per table
B. 12 guests per table
C. 18 guests per table

Answers

B. 12 guest per table all you need to do it’s divide 216 and 18

Find the measure of the smaller angle formed by the hands of a clock at the following time.
5:25

Answers

Answer: 12°30’

Step-by-step explanation:

The graph below represents a library fine, in dollars, for a book returned late after a number of days overdue.

A graph titled Library Fines. The horizontal axis shows days overdue and the vertical axis shows the fine (dollars). The line shows an increase to $10 at 19 days overdue, then constant.

Christen returned an overdue book to the library. Her fine was the same as the amount on the following day. Out of the fines show below, which one would be closet to the number of days overdue?

10
14
18
21

Answers

Answer:

21

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

PLEASE HELP ME !!!!!!!!!!!!!!!!!!!!

Answers

Answer:4104

Step-by-step explanation:I think

Write an expression to represent the perimeter of a rectangle with the length of x -4 and width of 2x +8.

Answers

Answer:

2(x-4) + 2(2x+8) OR long way (x-4) + (x-4) + (2x+8) + (2x+8)

Step-by-step explanation:

2(x-4) represents the (x-4) + (x-4) in the longer version since for perimeter you add the sides. Same thing for the other side, 2(2x+8) represents (2x+8) + (2x+8).

Not sure if you need the expression solved but here:

[tex]2(x-4) + 2(2x+8)\\(2x-8) + (4x+16)\\=6x+8[/tex]

To get from first line to second, use distributive property. To get from second to third line, combine like terms.

The perimeter of a rectangle with the length of (x - 4) and width of

(2x +8) will be (6x + 8).

What is mean by Rectangle?

A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.

We have to given that;

The length of rectangle = x - 4

The width of rectangle = 2x + 8

Now,

Since, The length of rectangle = x - 4

The width of rectangle = 2x + 8

We know that;

The perimeter of rectangle = 2 (Length + Width)

⇒ The perimeter of rectangle = 2 (x - 4 + 2x + 8)

⇒ The perimeter of rectangle = 2 (3x + 4)

⇒ The perimeter of rectangle = (6x + 8)

Learn more about the rectangle visit:

https://brainly.com/question/25292087

#SPJ2

In order to study the relationship between playing football and traumatic brain injuries, researchers placed accelerometers in the helmets of many high school football teams. Accelerometers measure the amount of hits that boys playing high school football absorb during a season. Suppose the average number of hits absorbed by a helmet during a season was 355 hits with a standard deviation of 80 hits. What is the probability on a randomly selected team of 48 players that the average number of head hits per player is between 340 and 360 hits

Answers

Answer:

56.96% probability on a randomly selected team of 48 players that the average number of head hits per player is between 340 and 360 hits

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

When the distribution is normal, we use the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a single player:

[tex]\mu = 355, \sigma = 80[/tex]

For the sample mean(of 48 playes).

[tex]n = 48, s = \frac{80}{\sqrt{48}} = 11.547[/tex]

What is the probability on a randomly selected team of 48 players that the average number of head hits per player is between 340 and 360 hits?

This is the pvalue of Z when X = 360 subtracted by the pvalue of Z when X = 340. So

X = 360

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{360 - 355}{11.547}[/tex]

[tex]Z = 0.43[/tex]

[tex]Z = 0.43[/tex] has a pvalue of 0.6664

X = 340

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{340 - 355}{11.547}[/tex]

[tex]Z = -1.30[/tex]

[tex]Z = -1.30[/tex] has a pvalue of 0.0968

0.6664 - 0.0968 = 0.5696

56.96% probability on a randomly selected team of 48 players that the average number of head hits per player is between 340 and 360 hits

Two possible floor plans for a new bathroom are shown.
Is there a value for x for which the perimeters are equal?
What is the linear equations?

Answers

Answer:

Hope it works for u

Step-by-step explanation:

As we have given two shapes bathroom

square and rectangle

Parameter of square= sum of all the sides   ( : In square all sides are equal

Parameter of square= 4*L  = 4*(x+3)       (:L=x+3

similarly,

In rectangle opposites sides  are equal hence

Perimeter of rectangle= 2*length+2*width  ( : length=x+4,width can't be seen clearly so I assume and take it width=x+1  hope this is equal to the width of ur question otherwise do the calculation by ur self).

Perimeter of rectangle= 2*(x+4)+2(x+1)

so now we have to find the value of "x" for which both perimeter are equal, so

perimeter of square= perimeter of rectangle

4*(x+3)=2*(x+4)+2(x+1)  we can also write as

2(x+3)+2(x+3)=2(x+4)+2(x+1)This is the linear equation requirednow to find value of "x"simplify both sides, we get4x+12=4x+100≠2 so that not true and also there is no value of "x"

for which both parameters become equal

so from my side "b" option is correct

Please brain-list it if u find it help-full it requires effort!

Answer: B option is correct. To find the perimeter of a rectangle or square you have to add the lengths of all the four sides. x is in this case the length of the rectangle while y is the width of the rectangle.

explanation: I hope that was helpful!

Which of the points is on a line with positive slope?

A
(-6, 1) and (-6, 9)

B
(2, 6) and (11, -3)

C
5, 0) and (8, 4)

D
(3, 4) and (-2, 12)

Answers

(5,0) and (8,4)

it’s the only one when graphed that the line (from left to right) goes up,

Donna deposits $275 into her savings account. She leaves the money in her account,
untouched, for 6 years. If the account earns 4.5% simple interest each year, how much simple
interest will she have earned by the end of the sixth year?

$7,425.00
$74.24
$206.25
$12.38

Answers

$7,425.00 this is because first you have you have to multiply 6 by 4.5%.Then that. answer (27) multiplied by 275.

The simple interest earned by Donna by the end of the sixth year is $74.24

What is simple interest?

Simple interest is the interest charge on borrowing that's calculated using an original principal amount only and an interest rate that never changes.  

Given that, Donna deposits $275 into her savings account for 6 years, the account earns 4.5% simple interest each year,

We need to find the interest earned by the end of the sixth year

Simple Interest = PRT / 100

Where,

P = Principal ($275)

R = rate (4.5%)

T = time (6 years)

SI = 275 × 6 × 4.5 / 100

= 7425 / 100

= 74.25

Hence, the simple interest earned by Donna by the end of the sixth year is $74.24

Learn more about simple interest, click;

https://brainly.com/question/25845758

#SPJ2

The 2017 World Alma- nac and Book of Facts reported that the U.S. occupation projected to grow the most is personal care aide. By 2024 there will be a need for 160,328 personal care aides, a growth of about 26% over 2014 lev- els. How many personal care aides were there in 2014

Answers

Answer:

There were 118,637 personal care aides in 2014.

Step-by-step explanation:

By 2024, there will be a need for 160,328 personal care aides, a growth of about 26% over 2014 levels.

This means that the 2014 levels is 100% - 26% = 74% of the 2024 levels.

Number of personal care aides in 2014:

74% of 160,320. So

0.74*160320 = 118,637

There were 118,637 personal care aides in 2014.

QUESTION
Two trillion is how much more than seven hundred fifty billion.
Write the answer in scientific notation.

Answers

Umm.... ERROR is the answer
Two trillion is 1250000000 than 750000000

convert 2/3 to it's decimal form and round to the nearest thounsandth

Answers

Answer:

0.67

Step-by-step explanation:

2/3=0.666 repeating which rounds up to 0.67

Answer:

0.67

Step-by-step explanation:

An event planner is reserving rooms for a company wide event. Each conference room can hold 22 people and 100 people are scheduled to stay in the ballroom, together they must hold 914 people who are attending, How many conference rooms will they need?

Answers

Answer:

37

Step-by-step explanation:

914-100=814

814/22=37

10 points. Need answer fast!.
How many different arrangements can be made with the letters from the word MATH?
A. 24
B. 6
C. 256
D. 8

Answers

Answer:

b

Step-by-step explanation:

what is the answer of X

Answers

Answer: x = -5

Step-by-step explanation:

-3.4x - 9 = 8

         +9  +9

    -3.4x = 17

-3.4x ÷ -3.4 = x

17 ÷ -3.4 = -5

Find the missing angle. Round your answer to the nearest degree.
37 FT
22 ft
f
x=
degrees
1

Answers

Answer:

53.52°

Step-by-step explanation:

cos x° = 22/37 = 0.59456

x = 53.52°

What reason can be used to complete this proof?


m∠1=m∠3 because ∠1≅∠3.

m∠1+m∠2=m∠CXB and m∠2+m∠3=m∠AXD _________.

m∠1+m∠2=m∠AXD because you can substitute m∠1 for m∠3.

m∠CXB=m∠AXD by the transitive property of equality.

So, ∠AXD≅∠CXB.

Answers

Answer:

Option (2)

Step-by-step explanation:

Given:

∠1 ≅ ∠3

To Prove:

∠AXD ≅ ∠CXB

Solution:

Given question is incomplete; find the complete question in the attachment.

            Statements                                                              Reasons

1). m∠1 ≅ m∠3 because m∠1 ≅ m∠3          1). Given

2). m∠1 + m∠2 = m∠CXB and                    

    m∠2 + m∠3 = m∠AXD                            2). Angle addition postulate

3). m∠1 + m∠2 = m∠AXD                             3). Because you can substitute

                                                                          m∠1 for m∠3

4). m∠CXB = m∠AXD                                   4).Transitive property of equality

5). ∠AXD ≅ ∠CXB

Therefore, Option (2) will be the correct option.

HELP!!!!!!!
A falling object travels a distance given by the formula d=3t+5t2, where d is measured in feet and t is measured in seconds. How many seconds will it take for the object to travel 84 feet?

Answers

Answer:

Approximately 3.81 seconds

Step-by-step explanation:

d = 3t + 5t²

d = 84

84 = 3t + 5t²

3t + 5t² - 84 = 0

5t² + 3t - 84 = 0

5(t² + 3/5t - 84/5) = 0

5(((t + 3/10)² - 9/100) - 84/5) = 0

5((t + 3/10)² - 9/100 - 84/5) = 0

5((t + 3/10)² - 9/100 - 1680/100) = 0

5((t + 3/10)² - 1689/100) = 0

5(t + 3/10)² - 1689/20 = 0

5(t + 3/10)² = 1689/20

(t + 3/10)² = 1689/100

t + 3/10 = ±√(1689)/10

t = -3/10 ± √(1689)/10

t = -3/10 ± ≈41.1/10

t = -3/10 ± ≈4.11

t ≈ -0.3 ± 4.11

t [can only be positive] ≈ 4.11 - 0.3

t ≈ 3.81

A launch vehicle is designed to carry up to 35 tons of payload into orbit.
When fully fueled, it will contain 1,216,000 kg of liquid oxygen at a density
of 1,155 kg/m3. What is the total volume of liquefied gasses carried by the
launch vehicle, to the nearest tenth? *
0.0 m
1,052.8 m
102,340.4 m
140,448,000 m

Answers

Answer:

1,052.8 m

Step-by-step explanation:

You use the equation D=m/v. You know D 1155 and you know m 1,216,000. So you just solve for volume.

18
8
X
12
What is the value of x?

Answers

Using Pythagorean theorem, the answer should be D

Mrs. Hart went to get her nails done at the salon. The cost was $35.00. What is the total amount if tax is 6% and she wants to leave a 18% tip?
A. $24.00
B. $43.40
C. $8.40
D. $59.00

Answers

Answer:

B) $43.40

Step-by-step explanation:

For the tax, 6% of 35 = 2.1

So with tax = $35 + 2.1 = $37.1

18% tip

So, 18% of 35 = 6.3

So we are gonna add all the costs together = 37.1 + 6.3 = $43.40

Answer:

Answer:

B) $43.40

Step-by-step explanation:

For the tax, 6% of 35 = 2.1

So with tax = $35 + 2.1 = $37.1

18% tip

So, 18% of 35 = 6.3

So we are gonna add all the costs together = 37.1 + 6.3 = $43.40

Step-by-step explanation:

Given f(x)=14(5−x)2 what is the value of f(11)?

Answers

Answer:

I was unsure about the way your question was written so I solved for two equations: f(x)=14(5-x)*2 and f(x)=14(5-x)+2

Step-by-step explanation:

Given f(x) = 14(5−x)², the value of f(11) = 504

The given function is:

f(x) = 14(5 - x)²

To get the value of f(11), substitute x = 11 into the function f(x) = 14(5 - x)²

f(11) = 14(5 - 11)²

Simplify the expression

f(11) = 14(-6)²

f(11) = 14(36)

f(11) = 504

Therefore, given f(x) = 14(5−x)², the value of f(11) = 504

Learn more on function here: https://brainly.com/question/10439235

Nike is having a 20% off sale on all of their sneakers. If a pair of sneakers normally costs $89, how much will it be during the sale? *

Answers

Answer:

$71.20

Step-by-step explanation:

Multiply 89 to .2 and you get 17.8 then you subtract that from the originat cost.

75%, 9/10, 0.09 least to greatest

Answers

0.09 < 75%< 9/10
This is the order from smallest to largest
0.09, 75%, 0.09


I hope this helps :)

HELP NOWWW!!
What is the quotient when 2 x 2 + 7 x – 15 is divided by 2 x – 3?

Answers

Answer:

yup 12

Step-by-step explanation:

Billy drove his car 290 miles in 5 hours. Sheila drove her car 132 miles in 2 hours. If each driver is traveling at a constant speed (in miles per hour), who is driving at a faster speed?​

Answers

Answer:

Shelia is

Step-by-step explanation:

hope this helps plz mark brainlessly

YOU HAVE SAVED $5000 AND INVESTED IT AT A RATE 3.2% FOR 5 YEARS. WRITE AN EXPONENTIAL FUNCTION TO REPRESENT THIS SITUATION. HOW MUCH WILL VOU KAVE AFTER YEARS? HOW MUCH WILL A BILLIONAIRE HAVE IF HE INVESTS $1,000,000,000 AT THE SAME RATE FOR THE SAME AMOUNT OF TIME?

Answers

Answer:

5852.86 = 5000 (1+ .032)^5

1170572956 = 1,000,000,000(1+ .032)^5

Step-by-step explanation:

Is x = 6 a solution to the equation x + 13 = 18?

Answers

Answer:

No, the answer is 5

Answer: No the solution is 5

Step-by-step explanation:

When you substitute x with 6 you get 6+13= 18.

Obviously 6+13 is not 18 so this means that 6 is not a solution.

Hope this helps ;)

Which graph represents this system? 2x-5v=-5 y=-3x+1​

Answers

Answer:

Please check the attached graph.

Step-by-step explanation:

The slope-intercept form of the line equation

[tex]y = mx+b[/tex]

where

m is the slopeb is the y-intercept

Given the system of equations

2x - 5y = -5    --- [Equation 1]

y = -3x + 1​      --- [Equation 2]

converting the equation 1 in the slope-intercept form

2x - 5y = -5

5y = 2x+5

divide both sides by 5

y = 2/5x + 1

Thus, the y-intercept  = 1

Now, please check the attached graph below.

The red line represents the equation  2x - 5y = -5

From the graph, it is clear that the red line has the y-intercept y = 1.

Now, considerng the equation 2

y = -3x + 1​  

comparing with the slope-intercept form of line equation

The y-intercept b = 1

Hence, the y-intercept of the line y = -3x + 1​ is y = 1

The green line represents the equation  y = -3x + 1​  

From the graph, it is clear that the green line has the y-intercept y = 1.

Point of Intersection:

It is clear from the graph:

The red line represents the equation  2x - 5y = -5.The green line represents the equation  y = -3x + 1​.

As both lines meet or intersect at the point (0, 1).

Therefore, the point of intersection of both the lines is:

(x, y) = (0, 1)

As we know that the point of intersection of both the lines represents the solution to the system of equations.

Therefore, (0, 1) on the graph represents the solution to the system of equations.

The graph is attached below.

Other Questions
Questions1) Adonde van los estudiantes que tienen interes en pasatiempos?2)Adonde fue para aprender a bailar?3) Como son los deportes de beisbol y futbol en la Republica Dominican?4) Cuanto tiempo hace que tito particpa en el Coro?5) Por que regresa nicolasa a San Miguel de allende? Ask a skateboarder a question YOOO our president is biden nowwww 2. Legislative Branch has all of the following powers exceptconfirm Executive cabinet members.declare a law unconstitutional.override presidential vetoes.impeach and remove presidents. Joe, Kay and Liam share some money in the ratio 5 : 6 : 9 In total, Joe and Liam receive 56 Work out the amount of money Kay receives. please help How do many Chinese families thank their ancestors for their wisdom and guidance and pray for good fortune in the year ahead?choose the correct answersMaking offerings of food and other items to the ancestorsDonating to charitiesCelebrating with displays of lights and fireworks At a banquet 216 guests sit at 18 tables. Each table has the same number of guests. How many guests per table?A. 8 guests per tableB. 12 guests per tableC. 18 guests per table Ball X of mass 1.0 kg and ball Y of mass 0.5kg travel toward each other on a horizontal surface. Both balls travel with a constant speed of 5 m/s until they collide. During the collision, ball Y exerts an average force with a magnitude of 40N for 1/6s on ball X . Which of the following best predicts ball momentum after the collision? A. Ball Y will travel at a speed less than 5 m/s in the same direction of travel as before the collision. B. Ball Y will travel at a speed less than 5 m/s in the opposite direction of travel as before the collision. C. Ball will travel at a speed greater than 5 m/s in the same direction of travel as before the collision. D. Ball Y motion cannot be predicted because the impulse on it is not known. Solve for x: -9 = 2x - 5 help plsss Explain how to get the variable alone in the equation. 3x = 24 Which type of reaction is always spontaneous? A. an exothermic reaction that has an increase in disorder B. an exothermic reaction that has a decrease in disorder C. an endothermic reaction that has an increase in disorder D. an endothermic reaction that has a decrease in disorder Sedimentary rocks are not found on the Moon because A. there is no silicon on the Moon.B. lava flows are missing from the surface.C. the Moon's gravity is too weak.D. there is no weathering on the Moon. Can someone tranlate thisfor me please In order to study the relationship between playing football and traumatic brain injuries, researchers placed accelerometers in the helmets of many high school football teams. Accelerometers measure the amount of hits that boys playing high school football absorb during a season. Suppose the average number of hits absorbed by a helmet during a season was 355 hits with a standard deviation of 80 hits. What is the probability on a randomly selected team of 48 players that the average number of head hits per player is between 340 and 360 hits A snow cone Machine priced at $139 is on sale for 20% off the sales tax rate is 6.75% what is the price of the snowcone machine after the discount and sales tax? (Blank) welding involves manual welding with equipment anomalously controls one or more of the windy conditions while (blank) welding using equipment that requires only occasional or no observation for the welding I know manual adjustment of the equipment controlA) Semi automatic, Automatic B) Fixed automatic, Flexible Automation C) Automatic, Semi Automatic D) Flexible Automatic, Fixed Automatic Paco y yo------ la musica escucharescucahaisescuchamosescucho Driving his sport utility vehicle negligently, Bart crashes into a streetlight. The streetlight falls, smashing through the roof of a house, killing Chris. But for Bart's negligence, Chris would not have died. Regarding the death, the crash is the PLEASE HELP ME !!!!!!!!!!!!!!!!!!!! Can someone help me with number 11?