What is 11.61 in simplest form?

Answers

Answer 1

Answer:

1161/100

Step-by-step explanation:


Related Questions

Share £40 in the ratio 1:4

Answers

Answer:

8:32

Step-by-step explanation:

1x+4x=40

5x=40

x=8

1*8:4*8

8:32

If inflation from last year to this year was 2% and a pair of designer jeans sold for $75 last year, what would you expect to pay for them this year?

Answers

Answer:

$76.5

Step-by-step explanation:

We have been given that inflation from last year to this year was 2% and a pair of designer jeans sold for $75 last year. We are asked to find the price of pair of designer jeans this year.

An inflation of 2% will increase the price of pair of jeans by 2%, so price of pair of jeans this year would be $75 plus 2% of $75.

[tex]\text{Price of pair of jeans this year}=\$75+\$75\times\frac{2}{100}[/tex]

[tex]\text{Price of pair of jeans this year}=\$75+\$75\times0.02[/tex]

[tex]\text{Price of pair of jeans this year}=\$75+\$1.5[/tex]

[tex]\text{Price of pair of jeans this year}=\$76.5[/tex]

Therefore, the price of pair of jeans would be $76.5 this year.

Renna pushes the elevator button, but the elevator does not move. The mass limit for the elevator is
450 kilograms (\text{kg}kgstart text, k, g, end text), but Renna and her load of identical packages mass a total of 620\,\text{kg}620kg620, start text, k, g, end text. Each package has a mass of 37.4\,\text{kg}37.4kg37, point, 4, start text, k, g, end text.

Answers

Answer:

Whats the full question ?

Step-by-step explanation:

Answer:

37.4p  ≥ 170

5 packages

Step-by-step explanation:

The inequality is:

37.4p  ≥ 170

Renna needs to remove a minimum of 555 packages from the elevator to meet the mass requirement.

Also the answer above is not ok to do.

Saying random things just for the points is wrong.

Instead you can say it where it says comment under the question

Hope this helps ;)

Allie bought a roll of wrapping paper that is 8 1/2 feet long. She is wrapping gifts for her staff and needs 1 3/4 feet of wrapping paper for each gift. If Allie wraps as many gifts as possible with one roll, how many feet of wrapping paper will she have left over?

Answers

Answer:

1 1/2 feet

Step-by-step explanation:

We know that she needs 1 3/4 feet of wrapping paper per gift and she has a total of 8 1/2 feet.

The number of gifts she can wrap is:

[tex]8.5/1.75=4.86[/tex]

She can wrap four gifts

Therefore:

[tex]4\cdot{1.75}=7[/tex]

She will use 7 feet of wrapping paper and she has:

[tex]8.5-7=1.5[/tex]

She has 1 1/2 feet of wrapping paper left

Answer:

11/2

Step-by-step explanation:

Kim says that multiply 1/4×12 is the same as dividing 12 x 4 do you agree with him explain your answer

Answers

Answer: No

Step-by-step explanation: 12 x 4 is 48. 12 x 1/4 is the same as dividing 12 by 4, which gives you 3. 3 is not equal to 48.

The correct statement is that the number 3 is not equal to 48.

I do not agree with him.

What is simplification?

Simplification is to make something easier to do or understand and to make something less complicated.

Given

Kim says that multiplying 1/4×12 is the same as dividing 12 x 4

How to find the solution?

The multiplication of 12×4 = 48.

1/4×12 is the same as dividing 12 by 4, which gives you 3.

Therefore, 3 is not equal to 48.

I do not agree with him.

More about the simplification link is given below.

https://brainly.com/question/12616840

Find the area of shaded region. Round the answer to 2 decimal places if necessary

Answers

[tex]\boxed{A=50units^2}[/tex]

Explanation:

Hello! Remember you have to write complete questions in order to get good and exact answers. Here you haven't provided any regions so I'll help you assuming a system of inequalities that leads to a shaded region that is a right triangle as shown in the figure below. The system is the following:

[tex]\left\{ \begin{array}{c}x>0\\y>0\\y<-x+10\end{array}\right.[/tex]

From the figure below, the shaded region is a right triangle with base 10 units and height 10 units. So:

[tex]A=\frac{b\times h}{2} \\ \\ \\ A:Area \ of \ the \ triangle \\ \\ b:base \ of \ the \ triangle \\ \\ h:height \ of \ the \ triangle[/tex]

So:

[tex]A=\frac{10\times 10}{2} \\ \\ A=\frac{100}{2} \\ \\ \boxed{A=50units^2}[/tex]

Learn more:

Area of a triangle: https://brainly.com/question/9835350

#LearnWithBrainly

a-2.5
2a-22.7
a+1.3
21.5
What’s a

Answers

Answer:

2.4

Step-by-step explanation:

Write the expression "N is the same as 6 reduced by 2" as a number sentence.

Answers

Answer:

N = 6 - 2

Step-by-step explanation:

Take each part of the word expression and translate it:

"N"   =>  N        ("N" is a variable that represents a number you don't know)

"is the same as"   =>  =       ("the same" means equals)

"6 reduced by 2"   =>  6 - 2          ("reduced" means use subtraction "-")

Put the sentence back together in the same order.

N = 6 - 2

If you wanted to find "N", you can simplify by doing 6 - 2.

N = 4

Borrowed 8000 at a rate of 12% compound monthly, no payments how much will be owed after 7 years?

Answers

Answer:

[tex]\$18,453.78[/tex]  

Step-by-step explanation:

The compound interest formula is equal to  

[tex]A=P(1+\frac{r}{n})^{nt}[/tex]  

where  

A is the Final amount owed  

P is the amount borrowed

r is the rate of interest  in decimal

t is Number of Time Periods  

n is the number of times interest is compounded per year

in this problem we have  

[tex]t=7\ years\\ P=\$8,000\\ r=12\%=12/100=0.12\\n=12[/tex]  

substitute in the formula above

[tex]A=8,000(1+\frac{0.12}{12})^{12*7}[/tex]

[tex]A=8,000(1.01)^{84}[/tex]  

[tex]A=\$18,453.78[/tex]  

What is the answer to (7+4)2+(14/7)

Answers

Answer:

24

Step-by-step explanation:

24

(7+4)= 11 x 2 + (14/7)
(14/7)= 11 x 2 + 2
11 x 2= 22 + 2
22 + 2= 24

)
The diameter of the dart board is 50 centimeters. What is the approximate circumference? (Use 3.14 for
A 157 cm
B 78.5 cm
cc 1962.5 cm
D. 625 cm
Reset
Submit
2 of 10 Answered
Session Score:
Session Timer: 5:04
в е ав 9
o
Type here to search
acer

Answers

Answer:

a. 157 cm

Step-by-step explanation:

Multiply the diameter times 3.14

3.14 x 50=157 cm.

answer: 157 cm

Final answer:

To find the circumference of a circle given the diameter, multiply the diameter by π (approximately 3.14). Hence, the circumference of the dartboard is approximately 157 cm.

Explanation:

The subject of the question is Mathematics and it covers a topic generally taught in Middle School. When given the diameter of a circle, you can calculate the circumference using the formula C=πd where C is the circumference, π (pi) is about 3.14, and d is the diameter. In this case, the diameter of the dartboard is 50 cm. So, we simply multiply the diameter (50 cm) by π (3.14) to get the circumference. This means the circumference of the dartboard is approximately

157 cm (Option A)

.

Learn more about Circumference here:

https://brainly.com/question/37011717

#SPJ11

Enter your answer and shot all the steps that you use to solve this problem in the space provided. This diameter of a tire is 2.5 ft. Use this measurement to answer parts A and B.
A - find the circumference of the tire.
B - about how many times will the tire have to rotate to travel 1 mile? (1 mile = 5,280 ft)
PLS HELP ASAP!! :))
WILL GIVE BRAINLIST

Answers

A- The circumference of the tire is about 7.85 feet

B- The tire will rotate about 672 times to travel 1 mile

Step-by-step explanation:

The formula of the circumference of a circle is C = π d, where d is the diameter of the circleIf a circle rotates for n turns and make a distance S, then n = [tex]\frac{S}{C}[/tex]

∵ The diameter of a tire is 2.5 ft

∴ d = 2.5 ft

∵ C = π d, where C is the circumference of tire

∴ C = π(2.5) = 7.85398 ft

∴ C ≅ 7.85 feet

A- The circumference of the tire is about 7.85 feet

∵ The tire have to travel 1 mile

∵ 1 mile = 5280 feet

∴ S = 5280 feet

- To find the number of rotation of the tire divide S by C

∵ n =  [tex]\frac{S}{C}[/tex]

∴ n = [tex]\frac{5280}{7.85}[/tex] ≅ 672 revolution

B- The tire will rotate about 672 times to travel 1 mile

Learn more;

You can learn more about rotation in brainly.com/question/2860697

#LearnwithBrainly

Answer:

The circumference of the tire is about 7.85 feet

B- The tire will rotate about 672 times to travel 1 mile

Step-by-step explanation:

   The formula of the circumference of a circle is C = π d, where d is the diameter of the circle

   If a circle rotates for n turns and make a distance S, then n =

∵ The diameter of a tire is 2.5 ft

∴ d = 2.5 ft

Step-by-step explanation:

one angle of a triangle has measure 26 degrees and another has measure 35 degrees. what is the measure, in degrees of the 3rd angle?

Answers

The measure of the third angle is 119 degrees

Step-by-step explanation:

The given is:

One angle of a triangle has measure 26 degreesAn another has measure 35 degrees

We need to find the measure of the third angle in the triangle

The sum of the measures of the interior angles of a triangle is 180°

∵ The measure of an angle = 26°

∵ The measure of another angle = 35°

∵ The some of measures of the 3 angles = 180°

∴ 26° + 35° + x° = 180°, where x is the measure of the 3rd angle

- Add the like terms in the left hand side

∴ 61° + x° = 180°

- Subtract 61 from both sides

∴ x = 119°

The measure of the third angle is 119 degrees

Learn more:

You can learn more about the triangles in brainly.com/question/3945600

#LearnwithBrainly

Ben is 4 times as old as I Ishaan and is also 6years older than ishaan

Answers

Answer:

24

Step-by-step explanation:

4 times 6 =24

Answer:

Ishaan is 2 years old and Ben is 8

Step-by-step explanation:

Ben is 4 x (2) = 8

Ben is 6 + (2) = 8

The perimeter of the rectangle is 14x + 4, the length of the rectangle is 2x. What is the width of the rectangle?

Answers

Answer:

5x+2

Step-by-step explanation:

P=2L+2W

14x+4=2(2x)+2W

14x+4=4x+2W

14x+4-4x=2W

14x-4x+4=2W

10x+4=2W

(10x+4)/2=W

5x+2=W

Given that ABCD is a rhombus, what is the value of x?
(3x - 26)​

Answers

Answer:its 29

Step-by-step explanation:

Answer:

29

Step-by-step explanation:

#15 You earned 89 out of
100 points on your math
quiz. What percent of the
points did you earn?
#16 Outc
are in bar
of studen

Answers

Answer:

89%

Step-by-step explanation:

Percent is a number out of 100.

If you got 89 out of 100, you got 89%

HWEEEPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

P = 105°

QR = 11.6

M = 45°

LN = 8.5

Step-by-step explanation:

when reading the order of what is given LMN = PRQ the order DOES matter

so whe looking at what is being asked....

P will equal whatever its place is in the opposite equation. In this case that is L. This means that P = L. Since L = 105° then so does P.

You can do this with the rest of the letters. What ever letter is in it's place in the opposite equation that is what it equals.

can you solve this equation for me?
simplify the expression 6-2x+5+4x

Answers

Answer:

11 + 2x

Step-by-step explanation:

First you will want to separate like variables, so (6, 5) and then (-2x, 4x)

Then you will use the signs to do the math. You can move everything to help visualize the solution easier.

6+5+4x-2x

6+5 = 11

4x-2x = 2x

Because you cannot add or subtract a variable with a non variable, and both numbers are positive you end up with

11 + 2x

The expression 6-2x+5+4x simplifies to 11 + 2x by combining like terms: the constants (6+5=11) and the variables (-2x+4x=2x).

To simplify the expression 6-2x+5+4x, we start by combining like terms. Combining the constant terms (6 and 5) and the variable terms (-2x and 4x), we get:

Constant terms: 6 + 5 = 11

Variable terms: -2x + 4x = 2x

Thus, the simplified expression is 11 + 2x.

Which number has the smallest number? -5 or -15?

Answers

Answer:

-15

Step-by-step explanation:

this is the negative scale, so the bigger the smaller

Answer:-15

Step-by-step explanation:

-15 is 15 away from 0 while -5 is only 5 away from 0

make g the subject of x=3g+2

Answers

Answer:

look at picture shown.

doug has 45 coins worth $9.00. The coins are all quarters or dimes. How many of each type of coin dose doug have?

Answers

Doug have 30 quarters and 15 dimes.

Step-by-step explanation:

Given,

Number of coins = 45

Worth of coins = $9.00 = 9.00*100 = 900 cents

Each quarter = 25 cents

Each dime = 10 cents

Let,

x be the number of quarters

y be the number of dimes

According to given statement;

x+y=45            Eqn 1

25x+10y=900   Eqn 2

Multiplying Eqn 1 by 10

[tex]10(x+y=45)\\10x+10y=450\ \ \ Eqn\ 3[/tex]

Subtracting Eqn 3 from Eqn 2

[tex](25x+10y)-(10x+10y)=900-450\\25x+10y-10x-10y=450\\15x=450[/tex]

Dividing both sides by 15

[tex]\frac{15x}{15}=\frac{450}{15}\\x=30[/tex]

Putting x=30 in Eqn 1

[tex]30+y=45\\y=45-30\\y=15[/tex]

Doug have 30 quarters and 15 dimes.

Keywords: linear equation, elimination method

Learn more about elimination method at:

brainly.com/question/2821386brainly.com/question/2860697

#LearnwithBrainly

Doug has 30 quarters and 15 dimes.

Let

x = number of quarters

y = number of dimes

The total number of coins is 45. Therefore,

Total number of coins:x + y = 45

Total amount of the coins is $9. Therefore,

Total cost of the coins:0.25x + 0.1y = 9

Therefore,

x + y = 45

0.25x + 0.1y = 9

0.1x + 0.1y = 4.5

0.25x + 0.1y = 9

0.15x = 4.5

x = 4.5 / 0.15

x = 30

y = 45 - 30

y = 15

learn more on quarter and dimes here:https://brainly.com/question/244382?referrer=searchResults

Marks car gets 30 miles per gallon for gas mileage. How many miles can Mark travel on 13 gallons of gas

Answers

Answer:

390 miles

Step-by-step explanation:

30 mpg means that he gets 30 miles for every gallon.

If he has 13 gallons means that you multiply 30 by 13.

30 * 13 = 390 miles

Final answer:

Mark can travel 390 miles on 13 gallons of gas, as his car gets 30 miles per gallon and distance is calculated by multiplying fuel efficiency by the number of gallons.

Explanation:

To calculate the distance Mark can travel on 13 gallons of gas, we use the formula: Distance = Fuel Efficiency  imes Number of Gallons.

Mark's car gets 30 miles per gallon. Thus, the distance he can cover on 13 gallons of gas is calculated by multiplying 30 miles/gallon by 13 gallons, which equals 390 miles.

This is a straightforward multiplication problem involving units of fuel efficiency (miles per gallon) and quantity of fuel (gallons).

The solution directly gives us the total number of miles Mark can travel on 13 gallons of gas.

3x to the power of the 4th - x to the second power - x to the second power-5x to the power of 4 +3

Answers

Answer:

3x^4-x^2-x^2-5x^4+3

-2x^4-2x^2+3 is the answer

Final answer:

To simplify the given expression, combine like terms by adding or subtracting the coefficients of the same powers of x.

Explanation:

The given expression is 3x4 - x2 - x2 - 5x4 + 3.

To simplify this expression, combine like terms by adding or subtracting the coefficients of the same powers of x.

Combining like terms, we have: -2x2 - 2x4 + 3.

Learn more about Combining like terms here:

https://brainly.com/question/16601020

#SPJ12

$300 at 4 percent for 3 years
A: Find the interest earned
B: Find the balance of the account

Answers

So this is a simple interest problem

Amount=principal(starting amount) * rate * time(In years)

So A= 300*0.04*3
A =36
So the interest earned was 36$ but since the balance started with 300$ you have to add 36$ to the old balance to find your new balance
Therefore your new balance would be 336$

44 decreased by twice a number
use the variable "n" to represent an unknown number​

Answers

Answer:

44-2n

Step-by-step explanation:

Hope it helps!

Final answer:

The expression '44 decreased by twice a number' can be represented as 44 - 2n, where n is the unknown number.

Explanation:

The question involves expressing a given mathematical relationship using a variable. Here, the relationship is '44 decreased by twice a number.' To represent this situation with the variable n, we use the expression 44 - 2n. To simplify further, just substitute the variable 'n' with the unknown number. This represents the original number 44 being reduced by two times the value of some unknown number n.

A concert hall has three sections: the main floor, the balcony, and the gallery. For a recent concert, 1020 tickets were sold. There were twice as many balcony tickets sold as gallery tickets, and 225 more main floor tickets than balcony tickets. If g represents the number of gallery tickets sold, which expressions represents this situation?

Answers

Answer:

Let the number of balcony seats be b

Let the number of gallery tickets be g

Let the number of main floor tickets be m

b + g + m  = 1020

b = 2g

m = b + 225

The number of balcony tickets = 318

The number of gallery tickets = 159

The number of main floor tickets = 543

Step-by-step explanation:

Let the number of balcony seats be b

Let the number of gallery tickets be g

Let the number of main floor tickets be m

i) Therefore we can write b + g + m  = 1020

ii) there were twice as many balcony tickets sold as gallery tickets

   therefore b = 2g      [tex]\Rightarrow[/tex]  g = 0.5b

iii) there were 225 more main floor tickets than balcony tickets

   therefore m = b + 225

iv) using equation ii) and equation iii) in equation i) we can write

     b + g  + m = b + 0.5b + b + 225  = 1020      [tex]\Rightarrow[/tex] 2.5b  = 795     [tex]\Rightarrow[/tex]  b = 318

v) g  = 0.5 b  = 0.5 [tex]\times[/tex] 318 = 159

vi) m = b + 225 = 318 + 225 = 543

Answer:

D. Gallery: g

Balcony: 2g

Main Floor: 2g+225

Step-by-step explanation:

Gallery is g

Balcony had 2 times as many tickets than Gallery so 2•g (2•gallery)

Main floor had 225 more tickets than Balcony so Balcony’s equation plus 225 tickets. 2g + 225

Please help me calculate the proper number of significant figures, I would like to check my answers to see if this is correct based on the significant figure rules
A.) 320.80−(6101.3/1.8)320.80−(6101.3/1.8)=
B.) [(286.4×105)−(1.300×103)]×2.8951=
C.) (0.0041×26000.0)+(2811×15)=
D.) 863×[1251−(3.11×109)]=

Answers

Final answer:

To determine the proper number of significant figures in a calculation, follow the rules for addition/subtraction and multiplication/division, and round the final answer to the proper number of significant figures.

Explanation:

To determine the proper number of significant figures in a calculation, follow these rules:

Addition and subtraction: The result should have the same number of decimal places as the number with the fewest decimal places.Multiplication and division: The result should have the same number of significant figures as the number with the fewest significant figures.Rounding: Round the final answer to the proper number of significant figures.

Using these rules, the proper number of significant figures for the given calculations are:

A.) 320.80 - (6101.3 / 1.8) = 300

B.) [(286.4 x 105) - (1.300 x 103)] x 2.8951 = 839000

C.) (0.0041 x 26000.0) + (2811 x 15) = 40000

D.) 863 x [1251 - (3.11 x 109)] = -1.7742e12

When you isolate the variable,the goal is to get the variable

Answers

Answer: you isolate the variable so you can get a equation of y= 10x or something like that

Step-by-step explanation:

urgent please be my saint VX is a midsegment of △WYZ. If YZ=t+95 and VX=10t, what is the value of t?

Answers

Answer:

[tex]t = 5[/tex]

Step-by-step explanation:

By the mid-segment theorem of triangles,

[tex]VX= \frac{1}{2} YZ[/tex]

We substitute the expressions in terms of t.

[tex]10t = \frac{1}{2} (t + 95)[/tex]

We multiply through by 2 to get:

[tex]20t = t + 95[/tex]

Subtract t from both sides:

[tex]20t - t = 95[/tex]

[tex]19t = 95[/tex]

Divide both sides by 19:

[tex]t = \frac{95}{19} [/tex]

[tex]t = 5[/tex]

Other Questions
What is the value of t=1 (4 x 1/2^t-1) How does Twain complete the frame story (Mark all that apply.)?The narrator refers again to Leonidas W. Smiley.The narrator stays for the story of the cow.The narrator escapes before Wheeler can tell another long story. 20 point questionPlease answer if you know. Which of the following instruction formats would you most likely use if you had to write step-by-step instructions?A. ChecklistB. Numbered listC. ParagraphD. If-then table What were the principal "tools of empire"the various technologies that gave the Europeans such an advantage? Johansen Corporation uses a predetermined overhead rate based on direct labor-hours to apply manufacturing overhead to jobs. The Corporation has provided the following estimated costs for the next year:Direct materials...................................$6,000Direct labor.........................................$20,000Rent on factory building......................$15,000Sales salaries.....................................$25,000Depreciation on factory equipment......$8,000Indirect labor.......................................$12,000Production supervisor's salary.............$15,000Jameson estimates that 20,000 direct labor-hours will be worked during the year. The predetermined overhead rate per hour will be:A) $2.50 per direct labor-hourB) $2.79 per direct labor-hourC) $3.00 per direct labor-hourD) $4.00 per direct labor-hour What is the most common cause of tsunamis? A. volcano eruptions B. landslides C.earthquakes D.high waves Which is often more predictive of the client's success than the characteristics of his or her illness? Marilyn Mallinson invested $30000, part at 6% annual interest and the rest at 7.5% annual interest. Last year she earned $1995 in interest. How much money did she invest at each rate? A multiple-step income statement is thought to be more beneficial to financial users because of the revelation of important relationships. Which of the following is not separately identified on a multiple-step income statement?A. Gross profitB. Net incomeC. Income taxesD. Total costs and expenses b=2.35 + 0.25xc=1.75+0.40xIn the equations above,b and c represent the price per pound,in dollars, of beef and chicken,respectively,x weeks after July 1 of last summer.What was the price per pound of beef when it was equal to the price per pound of chicken?A.2.60B.2.85C.2.95D.3.35 All strains of human papillomavirus (HPV) are capable of integrating their double-stranded DNA viral genome into host basal cells while waiting for keratinocyte differentiation before initiating viral replication for virion shedding. As a consequence of the integrated genome, HPV strains that more readily transform host cells are more likely to cause an increased expression of viral ________.a. tumor suppressor genes.b. oncogenes.c. lytic genes.d. lysogeny genes. The production plant for Ace Manufacturing has been located in the same place for over 100 years. It has just completed its new factory, which includes its new corporate offices. The planning required for moving Ace into a new facility is a single-use plan. (True/False)TRUE OR FALSE Four research teams each used a different method to collect data on howfast a new brand of paint dries. Assume that they all agree on the sample sizeand the sample mean (in minutes). Use the confidence level; confidenceinterval) pairs below to select the team that has the smallest samplestandard deviation.OA. Confidence Level: 99.7%; Confidence Interval: 42 to 48B. Confidence Level: 95%; Confidence Interval: 40 to 50OC. Confidence Level: 95%; Confidence Interval: 35 to 55D. Confidence Level: 68%; Confidence Interval: 44.5 to 45.5 Read and choose the option with the correct possessive adjective missing in the blanks to complete the sentences.Hola, buenas tardes, eres scar. Son la seora Tina y el seor Pedro ________ bisabuelos?Hola, s, ellos son deportistas. Tienes bisabuelos t?No, pero mi amiga Miguelina s. ________ bisabuela tiene 100 aos!tu; Sustus; Sustus; Sutu; Su If a solution is hypotonic, it will cause the cell to swell.a. No, the ions will evenly distribute themselves between the surrounding solution and the inside of the cell. b. Yes, the solution is hypotonic, causing the cell to burst. c. No, the solution is isotonic. d. Yes, the solution is hypertonic, causing the cell to swell. Why was King Louis XVI important Gina and Rhonda work for different real estate agencies. Gina earns a monthly salary of $5,000 plus a 6% commission on her sales. Rhonda earns a monthly salary of $6,500 plus a 4% commission on her sales. How much must each sell to earn the same amount in a month?A $750,000B $75,000C $15,000D $1,500 James Madison English test grade 12 lesson 1 At an astronomical conference, an astronomer gives a report on a star that has recently begun to interest astronomers because of hints that it may have a planet around it. In his report the astronomer gives the average speed with which this star is moving away from the Sun. How did the astronomer measure this speed?By looking at the Doppler shift in the lines of the star's spectrum. T/F The main purpose of security training courses is to rapidly train students in one or more skills, or to cover essential knowledge in one or more specific areas.