Explain why you need to state the domain before simplifying a rational function. you should use at least one example in your explanation.

Answers

Answer 1

Knowing which x-values would result in division by zero can help you avoid using certain x-values. Finding the domains of rational functions is therefore likely to be your initial step.

What is a rational function?

A function that measures two polynomials in comparison. Because one is divided by the other, just like a ratio, it is a "rational function."

All real numbers x, except those for which the denominator is 0, are included in the domain of a rational function. Equilibrate the denominator to zero and then solve for x to determine which x values are excluded from the scope of a rational function.

For instance, the set of all real numbers other than x=0 is the domain of the parent function f(x)=1/x.

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Related Questions

A tourist in France wants to visit 12 different cities. How many different routes are possible?

A. 39,916,800

B. 144

C. 479,001,600

D. 12

Answers

The different routes are 479,001,600

How to determine the number of routes?

The number of cities is given as:

n = 12

The cities are different.

So, the number of routes is:

Routes = 12!

Expand

Routes =12 * 11 * 10 * 9 * ..... * 1

Evaluate

Routes =479,001,600

Hence, the different routes are 479,001,600

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What is the area of the shaded portion of the circle?
A: (16pi-32) in^2
B: (16pi-8) in^2
C: (64pi- 32) in^2
D: (64pi - 8) in^2

Answers

Answer:

1st option

Step-by-step explanation:

the area of the shaded portion is calculated as

area of sector - area of white Δ

area of sector = area of circle × fraction of circle

                        = πr² × [tex]\frac{90}{360}[/tex] ( r is the radius )

                        = π × 8² × [tex]\frac{1}{4}[/tex]

                       = 64π × [tex]\frac{1}{4}[/tex]

                       = 16π in²

area of Δ = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )

here b = h = 8

area of Δ = [tex]\frac{1}{2}[/tex] × 8 × 8 = [tex]\frac{1}{2}[/tex] × 64 = 32 in²

then

area of shaded portion = (16π - 32 ) in²

If lines I and m are parallel, which pair of angles are congruent?
o 2 and 3
o 1 and 8
o 4 and 5
o 1 and 7

Answers

Answer:

last choice

angle 1 and 7 are alternet xterior angles

Step-by-step explanation:


The temperature outside is initially recorded, in Fahrenheit degrees at 8:00 AM and is re-recorded at various times throughout the day. The
temperature recordings are represented by the number line below.

Answers

The temperature in degrees Fahrenheit outside at various times throughout the day is given by the inequality x < 69°F

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

A number line is a straight line with numbers placed at equal intervals.

Let x represent the temperature in degrees Fahrenheit, from the number line:

x < 69°F

The temperature in degrees Fahrenheit outside at various times throughout the day is given by the inequality x < 69°F

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A wheel with radius $1\text{ m}$ is rolled in a straight line through one complete revolution on a flat horizontal surface. How many meters did the center of the wheel travel horizontally from its starting location

Answers

The distance traveled by the center is equal to the distance traveled by the wheel 6.28m is traveled by the center.

Given: A wheel with a radius rolled in a straight line through one complete revolution on a flat horizontal surface.

To Find: How many meters did the center of the wheel travel horizontally from its starting location.

Solution:

consider the figure attached.

radius of wheel [tex]=1m[/tex]

Horizontal distance traveled by the wheel in one complete revolution

=circumference of the wheel

[tex]\\=2\pi r\\=2*3.14*1\\=6.28m[/tex]

Hence, the distance traveled by center is equal to the distance traveled by the wheel 6.28m is traveled by the center

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2. Use the Distributive Property to determine which of the following statements is equivalent to 5(6-2).
O11-2
30-2
O11-7
tive OR (JL22) 1 Tools Of The Trade
30 - 10
A

Answers

Answer:

30 - 10

Step-by-step explanation:

When you distribute, that means you multiply everything on the outside of the parentheses by everything on the inside.

5 (6-2)

is really

5*6 - 5*2

30 - 10

The following system of equation is given: -7x+7y=7\newline 2x-2y=-18−7x+7y=7
2x−2y=−18
​Choose the correct solution for the system.

Answers

The given system of equation has no solution.

What is a System of Equation ?

The set of equation that have common solution is called the system of equation

The equation given are

- 7x + 7y = 7

2x - 2y = -18

On simplifying the equations

- x + y = 1

x - y = -9

On adding these equations there is no solution

as

[tex]\rm \dfrac {a_1}{a_2 } = \dfrac{b_1} {b_2} \ne \dfrac{c_1}{c_2}[/tex]

The given system of equation has no solution.

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mark the congruent parts of the triangles and complete the proof

Answers

1) given

2) definition of an angle bisector

3) reflexive

4) [tex]\triangle ABD \cong \triangle CBD[/tex] (ASA)

5) [tex]\angle A \cong \angle C[/tex] (CPCTC)

5|x +9| < 10



x< ?
x> ?

Answers

Answer:

x<−7 and x>−11

Step-by-step explanation:

Let's solve your inequality step-by-step.

5(|x+9|)<10

Step 1: Divide both sides by 5.

5(|x+9|)/5 < 10/5

|x+9|<2

Step 2: Solve Absolute Value.

|x+9|<2

We know x+9<2 and x+9>−2

x+9<2(Condition 1)

x+9−9<2−9(Subtract 9 from both sides)

x<−7

x+9>−2(Condition 2)

x+9−9>−2−9(Subtract 9 from both sides)

x>−11

Answer:

x<−7 and x>−11

[tex]\huge\textsf{Hey there!}[/tex]

[tex]\huge\textbf{Equation:}[/tex]

[tex]\mathbf{5|x + 9| < 10}[/tex]

[tex]\huge\textbf{Solving:}[/tex]

[tex]\mathbf{5|x + 9| < 10}[/tex]

[tex]\huge\textbf{DIVIDE 5 to BOTH SIDES:}[/tex]

[tex]\mathbf{\dfrac{5|x \ + \ 9|}{5} = \dfrac{10}{5}}[/tex]

[tex]\huge\textbf{Simplify it!}[/tex]

[tex]\mathbf{|x + 9| < 2}[/tex]

[tex]\huge\textbf{Solve the absolute value:}[/tex]

[tex]\mathbf{|x + 9| < 2}[/tex]

[tex]\huge\textbf{Possibly we know that:}[/tex]

[tex]\mathbf{x + 9 < 2 \ and\ we\ know\ that \ x+9 > -2}[/tex]

[tex]\huge\textbf{Solving for:}[/tex]

[tex]\mathbf{x + 9 < 2}[/tex]

[tex]\huge\textbf{SUBTRACT 9 to BOTH SIDES:}[/tex]

[tex]\mathbf{x + 9 - 9 < 2 -9}[/tex]

[tex]\huge\textbf{Simplify it!}[/tex]

[tex]\mathbf{x < -7}[/tex]

[tex]\huge\textbf{Solving for:}[/tex]

[tex]\mathbf{x + 9 > -2}[/tex]

[tex]\huge\textbf{SUBTRACT 9 to BOTH SIDES:}[/tex]

[tex]\mathbf{x + 9 - 9 > -2 - 9}[/tex]

[tex]\huge\textbf{Simplify it!}[/tex]

[tex]\mathbf{x > -11}[/tex]

[tex]\huge\textbf{Answer(s):}[/tex]

[tex]\huge\boxed{\mathsf{x < -7\ or\ x > -11}}\huge\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Solve for X. HELP?!

Answers

Answer:

x = 90

Step-by-step explanation:

In this figure the exterior angle is 130°

An exterior angle is the sum of the interior angles. The interior angles are x and 40 so x + 40 = 130 giving x = 130-40 = 90

Answer:

∠ x = 90°

(90 degrees)

Step-by-step explanation:

When two angles combine to make a straight line, we know that their angle values must add up to 180

Here, we can see that 130 combines with an inner angle to form a straight line. (I will be calling this interior angle z )

So, 130 + z = 180

   130 + z = 180

 - 130        -130

   z = 50

We also know that all angles in a triangle must add up to 180 degrees, and because we know the two other angles of our triangle now, we can find x

z + x + 40 = 180

50 + x + 40 = 180

90 + x = 180

- 90           -90

x = 90

So, the measure of angle x is 90°

hope this helps!! have a lovely day :)

PLEASE HELP

A linear function has a slope of Negative StartFraction 7 Over 9 EndFraction and a y-intercept of 3. How does this function compare to the linear function that is represented by the equation y + 11 = Negative StartFraction 7 Over 9 EndFraction (x minus 18)? a It has the same slope and the same y-intercept. b It has the same slope and a different y-intercept. c It has the same y-intercept and a different slope. d It has a different slope and a different y-intercept.

Answers

The given function: B. has the same slope and a different y-intercept.

What is the Equation in Slope-intercept Form of a Linear Function?

The linear function is expressed in slope-intercept form as, y = mx + b, where b is the y-intercept and m is the slope.

Slope (m) of the first function is: -7/9.

Its y-intercept (b) is: 3.

Given the equation, y + 11 = -7/9x - 18, rewrite in slope-intercept form:

y + 11 = -7/9x - 18

y = -7/9x - 18 - 11

y = -7/9x - 29

The slope (m) is: -7/9

Its y-intercept (b) is: -29

Therefore: B. It has the same slope and a different y-intercept.

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What is the value of Lilly’s expression when x=5? Show or explain how you got your answer

Answers

Answer:

what is lollies expression. I need to now what the expression is in order to plug 5 in for x.

Step-by-step explanation:

we need the expression first

anybody can help me?

Answers

The proportional graph that corresponds to the situation is: Graph C.

What is a Proportional Graph?

A proportional graph is a straight line graph with a constant of proportionality, k = y/x. The equation of the graph is defined as, y = kx.

The equation, M = 3n, has a constant of proportionality as, k = 3.

In graph C, using a point on the line, (400, 1,200), the constant of proportionality, k = 1,200/400

k = 3.

Therefore, the answer is: C.

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How many apples?
Help me please, thanks so much

Answers

The number of Apples that were in the given fruit salad is approximately; 2170 Apples.

How to work with ratio questions?

We are given the ratio of apples to oranges as;

A:O = 31:11

Now, we are told that there are 2940 apples and oranges in total.

Thus, the fractions of apples and oranges of the total will be;

Apple fraction = 31/(31 + 11) = 31/42

Orange Fraction = 11/42

Thus;

Number of Apples = (31/42) * 2940

Number of Apples = 2170 Apples

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please help I need help ill pick brainlyist
20points

Answers

Hello and Good Morning/Afternoon

Let's take this problem step by step:

What the problem wants to find:

  ⇒ area of a parallelogram

What is the area formula of the parallelogram:

  ⇒ Area = Base * Height

Let's gather the information necessary:

Base: 12 inHeight: 11 in

Let's solve:

   ⇒ Area = 12 * 11 = 132 in²

Answer: 132 in²

Hope that helps!

#LearnwithBrainly

Answer:

132 inches squared

Step-by-step explanation:

Area is 132 inches squared

Method 1:

Area of parallelogram = base x height = 11inches x 12 inches = 132 inches squared

Method 2:

Move the triangle divided by the dotted line on the right to the left.

It becomes a rectangle of 11 inches by 12 inches. 11 inches x 12 inches = 132 inches squared.


Carson is a salesman at an insurance company. He receives a monthly salary of $1,027.00 and a $185.00 commission on each
policy he sells. If Carson receives his commission check at the end of the month along with his salary check, which of the following
functions can be used to determine his total pay for the month?
(Let x represent the number of policies sold and f(x) represent the total amount of pay for the month.)

Answers

Answer: He receives a monthly salary of $1,478.00 and a $249.00 commission on each policy he sells. If Carson receives his commission check at the end of the month ...

Step-by-step explanation:

Triangle L N M is cut by a bisector that forms a right angle with the base and splits the base into 2 congruent lengths. The lengths of sides L N and N M are congruent. Angle L N M is (6 x + 1) degrees. Angle N M L is (4 x minus 11) degrees.

What is the measure of ∠NLM?

m∠NLM =

Answers

The value of ∠NLM = 29 degree

What is a Triangle ?

A triangle is a polygon with three sides , angles and vertices.

It is given that a Δ LNM is cut by a bisector

The bisector forms a right angle at the base and splits in tnto two congruent lengths

LN = NM

∠LNM = 6x +1

∠NML = 4x -11

∠NLM = ?

∠NLM =∠NML  = 4x -11

as 6x +1 is the value of the angle bisector

By the angle sum property

4x -11 +4x -11 + 12x+2 = 180

20x = 200

x = 10

The value of ∠NLM =

4x - 11 = 4 * 10 - 11 = 29 degree

Therefore the value of ∠NLM = 29 degree

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Answer: A.) ✔ 29 degrees

Step-by-step explanation: i hope this helps :)

A sum of money in a savings account is represented by the following function:
A = 9, 000(1. 03)t where t is the number of years the money is invested.

What is the initial sum of money in the account?

Answers

The initial sum of money in the account is 9000

How to determine the initial sum of money?

The function is given as:

A = 9, 000(1.03)^t

The above function is an exponential function.

An exponential function is represented as:

A = ab^t

Where

a represents the initial value

By comparison;

a = 9000

Hence, the initial sum of money in the account is 9000

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You should be able to find this
without a calculator.
sin cos
(co
1
√√3
2
?]
[ ]

Answers

Answer:

[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

sin([tex]cos^{-1}[/tex] [tex]\frac{\sqrt{3} }{2}[/tex] )

using the sides of the 30- 60- 90 triangle

with legs 1, [tex]\sqrt{3}[/tex] and hypotenuse 2 , then

[tex]cos^{-1}[/tex] [tex]\frac{\sqrt{3} }{2}[/tex] = 30° and

sin30° = [tex]\frac{1}{2}[/tex]

answer:

1/2

Step-by-step explanation:

sin 30º=-√3/2, 1/2 or π/6

cos=√3/2

sin= 1/2

Mark has 580 stamps. Debbie has 720 stamps than Mark. How many stamps must Debbie give to mark so that Mark have 120 more than she?

Answers

480 stamps must be given to Mark

Answer: 130 stamps.

Step-by-step explanation:

Let amount оf the stamps Debbie must give to Mark so that Mark have 120 more than she is x.    

Hence,

(580+x)-(720-x)=120

580+x-720+x=120

2x-140=120

2x=260

2*x=2*130

x=130.

So, 130 stamps Debbie must give to Mark so that Mark have 120 more than she.

Good luck an' have a nice day!

The kind of statistics that focuses on providing a description that illuminates some characteristic of a numerical dataset and has value as an estimate of a real-world measure is called

Answers

The kind of statistics that provides a description that illuminates some characteristic of a numerical dataset and has an estimate is called descriptive.

What does descriptive statistics mean?

Descriptive statistics is a branch of statistics field that sheds light on a given feature of datasets.

Descriptive statistics uses numerical coefficients to analyze datasets that may represent the overall population or only a sample.

In conclusion, the statistics that provides a description that illuminates some characteristic of a numerical dataset is called descriptive.

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Quick algebra 1 assignment for 50 points!

Answers

Answer:

1. graphing a linear using slope

2. Determine the learning goals of your tutoring session

            - convert equations to slope-intercept forms.

            - graph linear equations from the slope-intercept form.

3. Provide a brief overview of the graphing method that you will be demonstrate.

          - use this formula y=mx+b to make the equation into slope intercept form

          - Then graph the line equation using the slope intercept form

4.  Plot the line Y = 2x+3 starting with the y-intercept and then using the slope

Steps on how to do number 4

1. Find the y-intercept = b of the equation y = mx + b.

2. Plot the y-intercept. The point will be (0, b).

3. Find the slope=m of the equation y = mx + b.

4. Make a single step, using the rise and run from the slope. (Make sure you go up to the right if it's positive and down to the right if it's negative.)

5. Connect those two points with your line.

Should look like the first graph below

5. Plot the line y= -3x+2  starting with the y-intercept and then using the slope.

Answer key

Use these steps

Find the y-intercept = b of the equation y = mx + b.

2. Plot the y-intercept. The point will be (0, b).

3. Find the slope=m of the equation y = mx + b.

4. Make a single step, using the rise and run from the slope. (Make sure you go up to the right if it's positive and down to the right if it's negative.)

Second graph is what number 5 question is supposed to look like

A jar contains 18 jelly beans: 7 purple jelly beans, 3 green jelly beans, and 8 orange jelly beans. Without looking. Travis picks 1 jelly bean from the jar. What is the probability of each of the following outcomes? [ P(green) - 2 P(purple) 3 P(orange) - 4 P(not green) 5. P(purple or green) 6. P(not orange)​

Answers

Answer:

1/6, 7/18, 4/9, 5/6, 5/9, 5/9

Step-by-step explanation:

Ariana bought 153 ounces of flour and she used 21.4 ounces of it to make biscuits. How much is left?

Answers

153 0z minus the 21.4 oz

What is the value of x in the figure shown below?
3.6
A
C
57⁰
80⁰
4.5
4.5
D
3.6
B

Answers

Answer: [tex]57^{\circ}[/tex]

Step-by-step explanation:

[tex]\triangle ACB \cong \triangle DBC[/tex], so by CPCTC, [tex]x=57^{\circ}[/tex]

can someone please please help me with this question !!!

Answers

Answer: b and d

Step-by-step explanation:

Since the roots are x=2 and x=6, we can write the equation as

[tex]f(x)=a(x-2)(x-6)[/tex]

Substituting in the coordinates of the vertex,

[tex]-4=a(4-2)(4-6)\\\\-4=a(2)(-2)\\\\-4=-4a\\\\a=1[/tex]

So, the equation is [tex]f(x)=(x-2)(x-6)[/tex].

On expanding, we get [tex]f(x)=x^2 - 8x+12[/tex]

Cooper weighs 20 pounds. when he is an adult dog, he will weigh about 350% as much as his current weight. how much will cooper weigh as an adult dog. show each step of your solution.

Answers

The cooper's weight as an adult dog will be 90 pounds.

What is percentage?

Percentage, which is a relative figure used to denote hundredths of any quantity. One percent (symbolized as 1%) is equal to 100 parts; hence, 100 percent denotes the complete amount, and 200 percent designates double the amount specified.

A typical method for calculating a percentage is the formula shown below:

Determine the total amount of what you want to find a percentage. Divide the number to determine the percentage. Multiply the value by 100.

Calculation for the weight of Cooper as an adult;

Cooper's present weight is 20 pounds.

He will weigh about 350% as much as his current weight.

Calculate 350% of 20 pounds.

= (350×20)/100

= 70

The increment of the weight of Cooper will be 70 pounds.

Thus, the total weight is 20 + 70 = 90.

Therefore, the weight of Cooper after 350% as an adult would be 90 pounds.

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3. 46,386
4. 1,020,615
Write in word form

Answers

Answer:

46,386=Forty six thousand three hundred eighty six.

1,020,615=One million twenty thousand and six hundred fifteen.

Can someone help me with this problem having trouble

Answers

So the bottom line is for vehicle weight so if you look at the bar at the top it says 25 so go to the graph and put a dot on 25 and then it says city mp is 27 so you put a dot between 25 and 30 and the connect it with a line

If mauricio does a job in 6 hrs less time than Alyson, and they can do the job together in 4 hrs, how long will it take to do the job alone

Answers

Mauricio takes 24 hours, and Alyson takes 24/5 hours if the Mauricio does a job in 6 hrs less time than Alyson.

What is a fraction?

Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

Let x and y be the time to take the job for Mauricio and Alyson respectively

1/x = 1/y - 1/6 ..(1)

1/x + 1/y = 1/4 ..(2)

After solving the equations:

[tex]\rm \dfrac{1}{\dfrac{6y}{6-y}}+\dfrac{1}{y}=\dfrac{1}{4}[/tex]

y = 24/5 hours

x = 24 hours

Thus, Mauricio takes 24 hours, and Alyson takes 24/5 hours if Mauricio does a job in 6 hrs less time than Alyson.

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Other Questions
Which inequality is true? 1.5 greater-than 2 and one-halfOne-half greater-than 0.5Negative 2.5 greater-than negative 1.5Negative 3 and one-half greater-than negative 4.5 On a coordinate plane, a curved line labeled f of x with a minimum value of (1.9, negative 5.7) and a maximum value of (0, 2), crosses the x-axis at (negative 0.7, 0), (0.76, 0), and (2.5, 0), and crosses the y-axis at (0, 2).Which statement is true about the graphed function? F(x) < 0 over the intervals (-, -0.7) and (0.76, 2.5).F(x) > 0 over the intervals (-, -0.7) and (0.76, 2.5).F(x) < 0 over the intervals (-0.7, 0.76) and (2.5, ).F(x) > 0 over the intervals (-0.7, 0.76) and (0.76, ). Whose address is 3276 American Business Drive?O Everybody CountsO Ms. ThompsonO USA Publishers1-212 Educatel Why are Xpiyacoc and Xmucane important?They are the names of the two gods who destroy all human life with the flood.They are the divine beings who are the grandparents of the hero-twins.None of these answers.They are the supreme judges and lords of the underworld. TRUE or FALSE: The square root of R2 (the coefficient of determination) is r, the correlation coefficient. (remember that square roots are always positive) Help solve please H ( - 1) = 6 - x QUESTION 111. Part 2. Multiple ChoiceChoose the best answer from among the options for each question.Booker T. Washington's admonition to African-Americans to "Cast down your buckets" can be interpreted as all of the following except staying in the South rather than moving to the North. being willing to start at the bottom and work up. becoming as educated as possible by pursuing advanced college degrees. living separately but equally with whites.QUESTION 121. The biggest criticisms for Booker T. Washington's Atlanta Exposition Address came from African Americans who felt that he had not spoken out strongly enough for their civil rights. Southern whites who felt that he had insulted them. African Americans who felt that he had spoken out too strongly about civil rights. politicians who felt threatened by what he said. Ethan sold some watches at $14 each and 20 bookmarks at $1.50 each. Roy sold the same number of watches at $13.50 each and 20 bookmarks at $1.80 each. They collected the same amount of money. How many watches did Ethan sell? Ethan Roy watches 17-114 watches come total Bookmarks 20 $1.56-30 Bookmarly 20-11-80-36 Same total What are the two categories that include intellectual and knowledge-based assets? Explicit Knowledge; Tacit Knowledge. Efficient Knowledge; Tacit Knowledge. Intelligent Knowledge; Explicit Knowledge. Open Knowledge; Closed Knowledge. Guys I need help! You and your friend are rolling number cubes. Each cube has 6 sides with the numbers 1 to 6. If a sum of 7 is rolled, your friend gets 1 point.If a 2, 3, or 4 is rolled, you get 1 point.After 108 rolls each, what scores should you expect?1. Friend: 54; You: 542. Friend: 54; You: 183. Friend: 18; You: 184. Friend: 18; You: 54 calculate the pressure of water in a well if the depth of the water is 10m What are the zeros of g(x)= x + 6x - 9x-54? Write as a single fraction-8c-d/9c+9C+4d/3c-5 A value that is used in a computation is known as an _____. Group of answer choices operand operator function clause Which of the following is NOT a question you need to ask yourself when editing and proofreading?A. Did I use parallel structure?B. Are my tenses consistent?C. Am I spending too much time proofreading?D. Have I used the appropriate style of language? For example, you should use Standard English if the writing is formal. Couples in which both partners follow the traditional gender roles (i.e., the man is masculine and the woman is feminine) tend to have Multiple Choice higher compassion. higher marital satisfaction. lower marital satisfaction. lower self-reliance. Southern Africa starts at which lake,that acts as a border between the northand the south?A. Lake Saint LuciaB. Lake ChadC. Lake Fundudzi Consider [tex]$\triangle ABC$ such that $BC = 3AC$ and $\angle A = \pi/6$[/tex]What are [tex]\[12 \sin(\angle B), 12 \sin(\angle C)\][/tex] in that order? One measure of the inflation rate is the a. percentage change in the CPI of adjacent years. b. sum of the CPIs of adjacent years. c. GDP minus the Real GDP in a year. d. percentage change in the Real GDP of adjacent years. You purchased 100 shares of ABC common stock on margin at $70 per share. Assume the initial margin is 50% and the maintenance margin is 30%. Below what stock price level would you get a margin call