Mathematics High School

True or false any number in the form of a + bi where a and b are real numbers

Answers

Answer 1
True they would be real numbers
Answer 2

True........................


Related Questions

What is the remainder of the following division problem? in the pic?





A. x

B.1

C. 0

D.–1

Answers

1 is your remainder

hope this helps

0 + 1 = 1

so your answer is 1 1/x

Answer :  Option B is correct.

Explanation :

Since we have given that

f(x) = x+1

and

g(x) =x

and when we divide f(x) with g(x) i.e.

[tex]\frac{f(x)}{g(x)}[/tex]

And we know the division algorithm , i.e.

[tex]f(x)=g(x).q(x) +r(x)[/tex],

Where q(x) represents quotient and r(s) denotes remainder

So, we write it in this manner ,

[tex]x+1=x.1+1\\\\\text{Remainder becomes 1}[/tex]

Hence, Remainder = 1

So, Option B is correct.

Randy solved the following problem: 7/8 + 9/15. He said, "I can add 7 and 9 to get 16 and add 8 and 15 to get 23. The answer is 16/23. " Is Randy correct? Explain your answer.

Answers

He added two fractions by adding the numerators and adding the denominators. That is incorrect.

To add two fractions, you must first have he same denominator in both.
Then you add the numerators and write the same denominator. You do not add the denominators.

What is the answer?

Answers

The divisor is '-5'

This come from x = -5

Move over -5 into the other side to make the equation equal to zero

x + 5 = 0

Answer: x + 5

The function f(x)=3(2.5)x is shown on the coordinate plane.

Select from the drop-down menus to correctly describe the end behavior of f(x) .
As x decreases without bound, the graph of f(x) .

As x increases without bound, the graph of f(x) .

An exponential curve on a coordinate plane with horizontal x axis ranging from negative 4 to 4 in increments of 1. The vertical y-axis ranges from negative 1 to 7 in increments of 1. The curve begins infinitely close to the x axis in the second quadrant. The curve increases through begin ordered pair 0 comma 3 end ordered pair. DO NOT DELETE THIS PLZ HOEFULLY SOMEONE CAN TRY TO ANSWER IT

Answers

As x increases without bound, the graph of f(x)  approaches y=0 increases without bound .

We have function [tex]f(x)=3(2.5)^x[/tex]

From the graph we can see that as x decreases without bound  the graph of f(x) approaches y=0.

Also the exponential function in the graph is approaching y=0 as x decreases on the left side of the curve.

Here as the exponential function here the power is x variable and the exponential function cannot be negative for any value of x.

Therefore as x increases without bound, the graph of f(x)  approaches y=0 increases without bound .

Learn more:https://brainly.com/question/13917934

Step-by-step explanation:

i took the test :)

50 POINTS + BRAINLIEST

Answers

x + 2y = 6
2y = -x + 6
  y = -1/2 x + 3 so slope = -1/2

parallel lines  has same slope = -1/2
perpendicular lines slope is opposite and reciprocal so slope = 2  
if slope not equal either -1/2 or 2 then neither.

y = -1/2 x - 5 ....m= - 1/2....  parallel

-2x + y = -4
          y = 2x - 4...m = 2 ....perpendicular

-x + 2y = 2
2y = x + 2
y = 1/2 x + 1 ...m = 1/2 ...neither

x + 2y = -2
2y = -x - 2
 y = -1/2 x - 1 ...m = -1/2 .....parallel

hope it helps

Answer:x + 2y = 6

2y = -x + 6

 y = -1/2 x + 3 so slope = -1/2

parallel lines  has same slope = -1/2

perpendicular lines slope is opposite and reciprocal so slope = 2  

if slope not equal either -1/2 or 2 then neither.

y = -1/2 x - 5 ....m= - 1/2....  parallel

-2x + y = -4

         y = 2x - 4...m = 2 ....perpendicular

-x + 2y = 2

2y = x + 2

y = 1/2 x + 1 ...m = 1/2 ...neither

x + 2y = -2

2y = -x - 2

 y = -1/2 x - 1 ...m = -1/2 .....parallel

What’s the rule for the translation (x,y) (x+3,y+7)

Answers

The rule would be right 3, since the algebraic composition is changing the x values, and up 7, since the y values are being changed. Whenever a number is being added to the x in the coordinate, the function is being moved to the right. When a number is subtracted from the x, then the function is moving left. 
For the y value, if you are adding a number to the y coordinate, you are moving it up, whereas when you subtract a number, you are moving it down that amount. 

Jill has 8.75. Jack has three times as much as Jill, but he spent 5.00 to buy a book. How much money does jack have ?

Answers

Simple! jack has x3 as much as jill so 8.75 x 3 = 26.25 then he spent 5.00 so 26.25-5.00=21.25 

Answer = 21.25

What is the answer to: jason has 4 tiles. each tile has a number printed oon it. the numbers are 2,3,6, and 8, a decimal number is formed using the titles and the clues. be a math detective and find the number.?

Answers

I believe this problem has the following clue:

digit in the tens place is the largest number. digit in tenths place is less than the digit located in the hundredths place. the digit in the ones place is greater than the digit in the hundredths place

 

From this clue, we can say that the number is:

86.23

can someone help answer and explain to me how to solve this? log (lowercase 6) 1/36

Answers

Answer: The log simplifies to -2

-------------------------------------------
-------------------------------------------

Explanation:

We will use the log rule that log(x^y) = y*log(x). Call this log rule 1. This log rule basically allows us to pull the exponent down.

Another log rule that we will use is [tex]\log_x\left(x\right) = 1[/tex] where x is any positive real number but x = 1 is NOT allowed. Call this log rule 2.

Because 36 = 6^2, this means that 1/36 = 6^(-2)

-------------

So,

[tex]\log_6\left(\frac{1}{36}\right)=\log_6\left(\frac{1}{6^2}\right)[/tex]

[tex]\log_6\left(\frac{1}{36}\right)=\log_6\left(6^{-2}\right)[/tex]

[tex]\log_6\left(\frac{1}{36}\right)=-2*\log_6\left(6\right)[/tex] Use log rule 1 (see above)

[tex]\log_6\left(\frac{1}{36}\right)=-2*1[/tex] Use log rule 2 (see above)

[tex]\log_6\left(\frac{1}{36}\right)=-2[/tex] 

This means that the given expression simplifies to -2

You can use a calculator to type in "log(1/36)/log(6)" without quotes and you should get -2 as the answer

㏒₆ [tex] \frac{1}{36} [/tex]
so 6² = 36
therefore, 6⁻² = [tex] \frac{1}{36} [/tex]

so your answer will be -2
the power is the answer

Can someone pleasee match these for me ASAP?? I need them rn and u get 27 pts! The first second and fourth on the ones with operations are multiplication. The fifth is subtraction. If u could do the questions as a thru f and g and the answers as 1 thru 6 and 7 and tell me the order that'd be great, thanks!

Answers

Here are the answers:
______________________________________
 
Question a):    ANSWER:   1 ;   √(28a⁴b³c)  =    2a²b √(7bc) ;
_______________________________________________________

Question b):    ANSWER:   6 ;   √(98a⁴b³c)  =    7a²b √(2bc) ;
_______________________________________________________

Question  c):   ANSWER:   3 ;   √(56a³b⁴c²)   =  2ab²c √(14a) ;
_______________________________________________________

Question   d):  ANSWER:   5 ;   √(48a⁵b⁶c³) =   4a²b³c √(3ac) ;
_____________________________________________________

Question   e):   ANSWER:  2 ;     √(24a⁵b⁴c²) =  2a²b²c √(6a)  ;_____________________________________________________

Question    f):  ANSWER:   4 ;    √(54a⁶b⁵c²) =  3a³b²c √(6b) .
_____________________________________________________

The baggage limit for an airplane is set at 100 pounds per passenger. thus, for an airplane with 200 passenger seats there would be a limit of 20,000 pounds. the weight of the baggage of an individual passenger is a random variable with a mean of 95 pounds and a standard deviation of 35 pounds. if all 200 seats are sold for a particular flight, what is the probability that the total weight of the passengers' baggage will exceed the 20,000-pound limit?

Answers

At a mean of 95 pounds per passenger and standard deviation of 35 pounds, multiplying this with the total number of passengers = 200, results in:

absolute mean = 95 * 200 = 19,000

absolute std dev = 35 * 200 = 7,000

 

Calculating for the z score:

z = (x – u) / s

where x is sample value = more than 20,000; u is the sample mean = 19,000; s is std dev = 7,000

 

z = (20,000 – 19,000) / 7,000

z = 0.143

 

From the distribution tables,

P (z = 0.14) = 0.5557

 

Therefore a 55.57% chance that it will be more than 20,000 pound limit

Final answer:

Using the Central Limit Theorem, we calculate the probability that the total weight of passengers' baggage exceeds 20,000 pounds for an airplane with 200 passengers to be approximately 0.0217.

Explanation:

To solve this problem, we use the Central Limit Theorem which states that if we have a large enough sample size, the distribution of the sample means will be approximately normally distributed regardless of the original distribution's shape. Given that the mean weight of an individual passenger's baggage is 95 pounds with a standard deviation of 35 pounds, and that there are 200 passengers, we can calculate the mean and standard deviation of the total baggage weight.

The mean total weight, μtotal, is calculated as the product of the mean individual weight and the number of passengers, so μtotal = 95 pounds × 200 = 19,000 pounds. The standard deviation of the total weight, σtotal, is calculated as the standard deviation of the individual weight multiplied by the square root of the number of passengers, so σtotal = 35 pounds × √200 ≈ 494.97 pounds.

Using the standard normal distribution, we find the z-score for the probability that the total weight exceeds 20,000 pounds by subtracting the mean from the limit and dividing by the standard deviation: z = (20,000 - 19,000) / 494.97 ≈ 2.02.

Looking up this z-score in a standard normal table or using a calculator, we find that the probability of the total baggage weight exceeding 20,000 pounds is approximately 0.0217.

Find the midpoint of the segment with the given endpoints. m(–2, 1) and n(–3, 2)

Answers

Use the midpoint formula

A bag contains purple and orange marbles. Sam randomly takes out one marble and then returns it to the bag. He does this 18 times, and 12 of those times an orange marble is pulled out. What is P(green)?

Answers

Since there are no green marbles it is impossible to select one so P(green)=0.

The expression on the left side of an equation is shown below.
-5(x+2) +3x =___
If the equation has an infinite number of solutions, which expression can be written in the box on the other side of the equation?
A. -5(x-3) +2x
B. -5x-10
C. x-2x +2 +3x
D. -2(x +5)

Answers

to have an infinite number of solutions, the equations have to be the same...or equivalent.

-5(x + 2) + 3x = 
-5x - 10 + 3x =
-2x - 10 = 
-2(x + 5) ....so ur original equation can be broken down to this...

so -5(x + 2) + 3x = -2(x + 5) would produce infinite solutions because it is basically the same expression <=

After solving the equation, the equivalent equation obtained which has an infinite solution will be equal to -2(x + 5). Hence, option D is correct.

What is an equation?

Mathematical expressions with two algebraic symbols on either side of the equal (=) sign are called equations.

This relationship is illustrated by the left and right expressions being equal. The left-hand side equals the right-hand side is a basic, straightforward equation.

As per the given equation in the question,

-5(x + 2) + 3x

Now, solve the equation,

-5x - 10 + 3x

= -5x + 3x - 10

= - 2x - 10

So, the equivalent equation will be,

-2(x + 5), it has an infinite solution because it is the same equation.

To know more about equation:

https://brainly.com/question/29657983

#SPJ2

Which unit fraction should be used to convert 15 inches to centimeters?

Answers

Answer:  ([tex] \frac{2.54 cm}{1 in} [/tex])  .
Final answer:

To convert from inches to centimeters, the unit fraction used is 2.54 cm/1 in. Therefore, 15 inches is equal to 38.1 centimeters.

Explanation:

To convert a measurement from inches to centimeters, we utilize a unit conversion factor. In this instance, the unit conversion factor we're interested in relates inches to centimeters. One inch is equivalent to 2.54 centimeters. Hence, the unit fraction used for such conversion is 2.54 cm/1 in.

To determine the equivalent value in centimeters for 15 inches, we multiply the number of inches (15) by our unit conversion factor (2.54 cm/1 in). This gives us the following

15 inches * 2.54 cm/1 in = 38.1 cm.

So, 15 inches is equivalent to 38.1 centimeters when converted.

Learn more about Unit Conversion here:

https://brainly.com/question/19420601

#SPJ2

Divide.

(5 1/4)÷(−2 1/2)

Enter your answer as a mixed number, in simplified form, in the box. Please Explain your answer.

Answers

Before you can divide anything mixed numbers, you must first put it as an improper fraction so 5 1/4 will change into 21/4 because 5*4+1 is 21 and don’t forget the fraction so it would be 21/4, and -2 1/2 would change into -5/4 because -2*2+1 is -5 and if u add the fraction it would become -5/4. Now, the method I use is leave, change, flip, so I first leave the 21/4 in 21/4/-5/4 and I change the division sign into a multiplication sign, and I flip the -5/4 to -4/5, so your new equation now looks like, 21/4•-4/5. Now we have to multiply. Since we can cross simplify, you can cancel out both fours leaving you with 21/1•-1/5 and when u multiply across you get -21/5. When u simplify it to a mixed number, it should look like -4 1/5 because you see how many times 5 goes into 21 which is 4 times and it leaves u with a remainder of 1 because 21-20 is 1 and when ever u have a remainder, u have to keep a denominator of 5 so your final answer is: -4 1/5
Final answer:

To divide (5 1/4)÷(−2 1/2), convert the mixed numbers into improper fractions and then multiply by the reciprocal of the divisor. Simplify the result to get the quotient as -2 1/10.

Explanation:

To divide the given mixed numbers, (5 1/4)÷(−2 1/2), we first convert them into improper fractions.

5 1/4 can be written as (4*5 + 1)/4 = 21/4.

(−2 1/2) can be written as (-2*2 + 1)/2 = -5/2.

Now, we can divide the fractions by multiplying the reciprocal of the divisor: (21/4) * (-2/5) = (-21/4) * (2/5) = -21/10.

Finally, we simplify the result by dividing both the numerator and the denominator by their greatest common factor, which is 1. The simplified result is -21/10, which can be written as -2 1/10 as a mixed number.

M(8, 5) is the midpoint of JK. The coordinates of point J are (5, −6) . What are the coordinates of point K?

Answers

11,16 I believe cause 8-5 is 3 it's increase by 3 8+3 is 11 -6+11 is 5 5+11 is 16

The midpoint is the exact middle of a line segment which divides the line into two equal lengths. Hence, the coordinate of K is (11, 16)

We can obtain the distance between the coordinates of JM thus :

Distance = y2 - y1 ; x2 - x1

Distance = (8 - 5) ; (5 - (-6) = (3, 11)

Hence, the change in the coordinates is (3, 11)

Therefore, the coordinates of K can be obtained thus :

(8 + 3) ;(5 + 11) = (11, 16)

Hence, the coordinate of K is (11, 16)

Learn more :https://brainly.com/question/16144029

The product of two numbers is 40. if one of the numbers is 5/11, what is the other number?

Answers

Final answer:

To find the other number when the product of two numbers is 40 and one of the numbers is 5/11, we divide 40 by 5/11 to solve for the unknown number. The other number is found to be 88.

Explanation:

The question asks to find the other number when the product of two numbers is 40 and one of the numbers is given as 5/11. To do this, we can set up an equation where the product of 5/11 and the unknown number (which we can call 'x') is equal to 40.

The equation would be: (5/11) × x = 40. To solve for x, we need to do some algebraic rearrangement by dividing both sides of the equation by 5/11. This brings x into the numerator on the left side and shifts the 5/11 to the denominator on the right side. Therefore, we get x = 40 × (11/5).

Next, we multiply 40 by 11/5. This calculation results in x = 88. Thus, the other number is 88.

Claire has received scores of 85,82, and 75 on her algebra tests. what score must she receive on the fourth test to have an overall test score average of at least 82

Answers

Fourth test mark should be 86

85 + 82 + 75 + 86 = 328
328 divide by 4 (as there are four tests) = 82

If AB = 18 and AC = 3x +6 then x=

Answers

x would equal 4
set AB=AC
18=3x+6
minus 6 on both sides 
12=3x
divide both sides by 3
x=4

Solve for x.
x2(^) + 9x = 0

Answers

x^2+9x=0
x(x+9)=0
x=0, -9
The Correct Answer is 0,-9

You have already saved $55 you earn $9 per hour babysitting you ate saving for a camera that costs $199

Answers

you need to work 16 hour to reach the amount you need

Alexandra bought a $90000 life insurance policy at $10.98 for a 20 year term. She will pay ___ over 20 years for the premium

Answers

10 dollars I think. "I think"

There are 18 players on the baseball team. Of these players 1/3 are girls. How many girls play on the baseball team?

Answers

6 girls on the basketball team

divide 18 by 3

18 / 3 = 6

 there are 6 girls on the team

holly and melanie were playing a video game. the ratio of holly's score to melanie's score was 8:3. after melanie scored 34 points, the ratio of their scores became 2:5. what were their scores at the end?

Answers

They started with a ratio of 8:3.
Since we don't know the actual numbers, let's say their scores were originally 8x for Holly and 3x for Melanie.
Then Melanie scored 34 points, so her score became 3x + 34.
Holly's score remained the same at 8x.
The new ratio is 2:5, so

8x/(3x + 34) = 2/5

Now we solve the equation for x.

40x = 6x + 68

34x = 68

x = 2

With x, we can find the scores.

Holly ended up with 8x = 8 * 2 = 16
Melanie ended up with 3x + 34 = 3(2) + 34 = 40

Please help with these questions thank you very much!

Answers

1. 30 and 60
2. 60 and 80
3. 60
4.37

The temperature rose 4 f every 90 minutes before noon and rose 2 f for every 45 minutes after noon are these rates equivalent

Answers

Yes, because the afternoon rate is just the morning rate split in half. Instead of checking the temperature every hour and a half, the temperature was checked every 45 minutes. And, the temperature rate was also split in half when the time was split in half. So basically, if the 2 degrees every 45 minutes was multiplied by 2,(both the time and the temperature) or if the 4 degrees every 90 minutes was divided by 2, (once again, both the time and the temperature) then, they would both be either 2 degrees every 45 minutes, or they would both be 4 degrees every 90 minutes.

The sum of two numbers is 39 . the larger number is 17 more than the smaller number. what are the numbers?

Answers

Larger Number + Smaller Number = 39
Larger Number = S + 17
Smaller Number = S

S + 17 + S = 39
2S + 17 = 39
2S = 39 - 17
2S = 22
S = 22/2
S = 11

Larger Number is S + 17
Larger Number is 11 + 17

Larger Number is 28
Smaller Number is 11
Final answer:

The smaller number is 11 and the larger number is 28.

Explanation:

Let's assume the smaller number is 'x'.
The larger number is 17 more than the smaller number, so the larger number can be represented as 'x + 17'.
The sum of the two numbers is 39, so we can set up the equation: x + (x + 17) = 39.
By simplifying the equation, we get 2x + 17 = 39.
Subtracting 17 from both sides gives us 2x = 22.
Dividing both sides by 2 gives us x = 11.
So, the smaller number is 11 and the larger number is 11 + 17 = 28.

Learn more about Algebra here:

https://brainly.com/question/24875240

#SPJ2

True or false: the regression sum of squares (ssr) can never be greater than the total sum of squares (sst).

Answers

. . . . . . .. . . . . . . . . . . . . . . . . . . . ./ . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

The equation of line m is 5x−3y=2. What is the slope of a line that is perpendicular to line m? Enter your answer in the box.

Answers

-3y=-5x+2
y=-5/-3x+2/-3
y=5/3x-2/3
compare y=mx+c || m =5/3
for perpendicularity
m=-1/M
m=-1/5/3
m= -3/5

Step 1

Find the slope of the line M

we have

[tex]5x-3y=2[/tex]

isolate the variable y

[tex]3y=5x-2 \\ \\y=\frac{5}{3}x-\frac{2}{3}[/tex]  

the slope of the line is [tex]\frac{5}{3}[/tex]

Step 2

Find the slope of the line perpendicular to line M

we know that

if two lines are perpendicular , then the product of their slopes are equal to minus one

so

[tex]m1*m2=-1[/tex]

we have

[tex]m1=\frac{5}{3}[/tex]

Find m2

[tex]m2=-1/m1[/tex]

[tex]m2=-1/(5/3)[/tex]

[tex]m2=-\frac{3}{5}[/tex]

therefore

the answer is

[tex]-\frac{3}{5}[/tex]

Other Questions
2 paragraphs on Fredrick Douglass and captain canots perspectives on slavery and how there different QUICK PLEASE HELP ME What does the interaction between Rainsford and General Zaroff reveal about Rainsfords attitude toward Zaroff? He is in awe of Zaroffs power. He believes Zaroffs behavior is inhumane. He questions Zaroffs sanity. He is afraid of Zaroffs lack of self-control. A 30 minute TV program consist of three commercials, each 2 1/2 minutes long, and four equal length entertainment segments. How long is each entertainment segment? The number of employees a supervisor can efficiently and effectively direct is called: The most important factor determining chemical properties for an element is? Juan has invested $3500 in a stock transaction. He later sold the stock and received $4553.50. What was Juan's return on investment (ROI)?A.) about 23.1%B.) about 130%C.) about 76.9%D.) about 30.1% Sodium, a group 1 element with an electron configuration of 1s22s23s1, will form a _____ ion in a chemical bond ? AIDs can be cured with the appropriate drugs Terms A. Pyramid B. Propaganda C. BabyloniansD. Cuneiform E. Gudea of lagash F. Ziggurat G. Amorites H. ClayI. The Sumerians J. Mesopotamia Fill in the blank with the term or the letter of the term that best matches the clue.1. Ancient region of southwest Asia between the Tigris and Euphrates rivers2.they invented the wheel 3. Sumerian writing system 4. A Semitic group that moved into the Fertile Crescent after 2000 b.c.5. Founders of algebra and astronomy 6. Sumerians were the first people to use this shape for religious structures 7. A step pyramid 8. Most common building element of ziggurats 9. Much Sumerian art was created as this 10. Renowned Sumerian ruler In his work "The spirit of Laws" what did the French philosopher Baron de Montesquieu say about the power of government? PLEASE HELP!!!!!!!! Match each economic term to its description. 1. established government policies that favored merchants and protected the nations economy 2. encouraged capitalists to save money 3.allowed investors to engage in speculative trading options are 1. banks 2. insurance companies 3.mercantilism Effie's store has 10,908 more comic book than Brody's. Brody's store has 45,607 coming books. How many books do Effie's and Brody's store have together? Show your work... According to productivity expert odette pollar, "to do more in a day, ________." Which area of the united states witnessed the greatest growth during the war? In species like sea turtles with high juvenile mortality, low adult mortality, and low fecundity, conservationists can most effectively help them by Which set of rational numbers is correctly ordered from least to greatest circle your answer.Use a number line to help find your answer.A.-0.48,-0.47,-0.46,0.45B.-0.48,-0.46,-0.47,0.45C.-0.45,-0.46,0.47,-0.48 why would plants have pigments that are not photosynthetically active The mass of a basketball is three times greater then the mass of a softball. Compare the momentums of a softball and a basketball if they both are moving at the same velocity. Which element is shared by both Lincoln's Gettysburg Address and King's Nobel Prize acceptance speech? Which research question could Theodore Roosevelts speech "Conservation as a National Duty help answer? Why was Roosevelt concerned about the state of the environment? Which foreign issues did Roosevelt address during his presidency? Which approaches did Roosevelt take on the campaign trail? Which economic problems did Roosevelt work to change? Steam Workshop Downloader