Which of the six trigonometric functions do not depend on the value of r?

Answers

Answer 1
If we construct a triangle in a circle of radius [tex]r[/tex], the radius of the circle will be the hypotenuse of our triangle, and the legs will be [tex]x[/tex] and [tex]y[/tex] as you can see in the picture. 
Now we can construct our trigonometric ratios for our triangle as usual:
[tex]sin \alpha = \frac{y}{r} [/tex]
[tex]cos \beta = \frac{x}{r} [/tex]
[tex]tan \beta = \frac{y}{x} [/tex]
[tex]csc \beta = \frac{r}{y} [/tex]
[tex]sec \beta = \frac{r}{x} [/tex]
[tex]cot \beta = \frac{x}{y} [/tex]

As you can see the only two trigonometric functions that don't depend on the value of [tex]r[/tex] are tangent and cotangent.
Which Of The Six Trigonometric Functions Do Not Depend On The Value Of R?

Related Questions

Hannah is saving money for a car. She earns $160 each week working part time after school and on the weekends at Papa's Pizza. Hannah currently has $1,280 in savings. Her parents put $50 in her savings account each week and she saves one-half of her paycheck each week. Which expression represents the situation? (n represents the number of weeks)

Answers

From the problem we know that Hanna saves one-half of her paycheck each week, so she saves [tex]( \frac{1}{2})(160)= \frac{160}{2} =80[/tex]. Also, we know that her parents put $50 in her savings account each week, so the total amount she and her parents put in her saving's account is [tex]80+50=130[/tex].
Since we know that Hanna currently has $1,280 in her saving's account and each week she and her parents deposit $130 to the account, with [tex]n[/tex] representing the number of weeks, we can model the situation as follows:
[tex]f(n)=1280+130n[/tex]

Answer:

The answer is A because

Step-by-step explanation:

1,280 in savings

160n

2

Hannah saves each week

50n parents put in savings each week

thus,

1,280 + 160n/2+ 50n

1,280 + 80n + 50n

1280 + 130n

You really have to think this one through all the way.  All the other answer choices are steps in finding the answer

explain how a table cn be used to find the rate of change?

Answers

The rate of change is a rate that describes how one quantity changes in relation to another quantity.

Write the expression as a product of polynomials:

a(p–q)+q–p

p^2q+r^2–pqr–pr

PLZ ANSWER ASAP

Answers

1. a(p–q)+q–p

We take out common factor

To change q - p as p - q we pull out -1

So q - p becomes -1(p - q)

a(p–q)+q–p

a(p–q) -1(p - q)

p -q is in common so we factor out p-q

(p - q) (a - 1)

2. p^2q+r^2–pqr–pr

WE change the order of terms

[tex] p^2q-pqr+r^2-pr [/tex]

We group first two terms and last two terms

[tex] (p^2q-pqr)+(r^2-pr) [/tex]

Now we factor out pq from first group and -r from second group

[tex] pq(p-r) - r(p - r) [/tex]

[tex] (p - r) (pq - r) [/tex]

To write the answer as a product of polynomials we try to factor the polynomial

a(p–q)+q–p

we can write this expression as

a(p-q)+(q-p)

from second parenthesis we can factor out -1 , so we get

a(p-q) -1(p-q)

Now it has two terms a(p-q) and -1(p-q) , from these two terms we can factor out (p-q)

So we get it

(p-q)(a-1)

So we get the polynomial as a product of two polynomials.


Second

[tex] p^2q+r^2- pqr-pr [/tex]

we can rewrite the expression as

[tex] (p^2q- pqr)+(r^2-pr) [/tex]

Now try to factor the groups

factor out "pq" as GCF from first group and "-r" as GCF from second group

[tex] pq(p- r)-r(p-r) [/tex]

Now we can factor it out for final step

[tex] (p- r)(pq-r) [/tex]



Choose as many answers as apply. Which of the following are sources of income? salary deductions part-time work odd jobs wishful thinking

Answers

salary, part time work, odd jobs

Answer:

salary . part time work . odd jobs.

Step-by-step explanation:

What is the greatest common factor of 14c^3, 70c^4, and 28c^2

Answers

GCF is
[tex]14 {c}^{2} [/tex]

Answer:

14c^2

Step-by-step explanation:

The greatest common factor is the factor between the 3 expressions that once divided by each expression, 1 becomes the only number common to all 3. Considering all the expressions as follows (broken into all the factors that make up each expression)

14c^3 = 2 × 7 × c × c

70c^4 = 2 × 5 × 7 × c × c × c × c

28c^2 = 2 × 7 × c × c

From the above, the common factors are 2, 7, c and c,the product of these

= 2 × 7 × c × c

= 14c^2

Match the reasons to the statements in the proof.

1. m∠1 + m∠5 = 180° and m∠1 + m∠4=180°
Subtraction property of equality
2. m∠1 + m∠5 = m∠1 + m∠4
Substitution
3. m∠5 = m∠4
If alternate interior angles equal, then lines are ||.
4. Ray YZ is parallel to Ray UV
Given

Answers

1. m∠1 + m∠5 = 180° and m∠1 + m∠4=180°
Given

2. m∠1 + m∠5 = m∠1 + m∠4
Substitution

3. m∠5 = m∠4
Subtraction property of equality 

4. Ray YZ is parallel to Ray UV
If alternate interior angles equal, then lines are ||. 

Answer:

1. [tex]m\angle 1+m\angle 5=180^{\circ}[/tex] and [tex]m\angle 1+m\angle 4=180^{\circ}[/tex]; given

2. [tex]m\angle 1+m\angle5=m\angle 1+m\angle4[/tex]; substitution

3.[tex]m\angle5=m\angle4[/tex]; subtraction property of equality

4. Ray YZ is parallel to ray UV; if alternate interior angles equal , then lines are parallel.

Step-by-step explanation:

Given

[tex]m\angle1+m\angle5=180^{\circ}[/tex]

[tex]m\angle 1+m\angle4=180^{\circ}[/tex]

To prove that YZ is parallel to UV.

Proof:

1.Statement: [tex]m\angle 1+m\angle5=180^{\circ}[/tex] and [tex]m\angle1+m\angle4=180^{\circ}[/tex]

Reason; Given

2. Statement: [tex]m\angle1+m\angle5=m\angle 1+m\angle4[/tex]

Reason: By using substitution property

3.Statement: [tex]m\angle5=m\angle4[/tex]

Reason: Subtraction property of equality.

4.Statement: Ray YZ is parallel to Ray UV

Reason: If alternate interior angles equal, then lines are parallel.

Find the slope of (2,3) and (6,7)

Answers

To find the slope, we must use the formula stated below.

Slope = Change in Y / Change in X = (Y1 - Y2) / (X1 - X2)

Since our coordinates are given as (X, Y), we must pick a coordinate to be #1, and the other coordinate will be #2.

I'll use the first coordinate as our #1.

(3 - 6) / (2 - 7) = (-3) / (-5) = 3/5 which is our answer

A blueprint was using a scale of 3 cm=4.5m. find the actual length if it is 5 cm on the drawing. show work

Answers

For this case what we can do is the following rule of three:
 3cm ---> 4.5m
 5cm ---> x
 Clearing the value of x we have:
 x = (5/3) * (4.5)
 x = 7.5 m
 Answer:
 the current length if it is 5 cm on the drawing is:
 x = 7.5 m

What is the area of a sector with a central angle of 3π5 radians and a diameter of 21.2 cm?

Use 3.14 for π and round your final answer to the nearest hundredth.

Enter your answer as a decimal in the box.


cm²

Answers

we know that

Area of a circumference=π*r²
for diameter=21.2 cm---------> r=10.6 cm
A=π*10.6²--------> A=π*112.36 -------> A=352.81 cm²

if 2π radians (full circumference) has an area of -----------------> 352.81 cm² 
3π/5 radians-------------------------------------> X
X=[(3π/5)*(352.81)]/2π---------> X=105.84 cm²

the answer is 105.84 cm²

Divide 9x^2-21x-20 by x-1

Answers

[tex]9 x^{3}-30 x^{2} +x+20 [/tex]
Answer:

1) quotient:  9x - 12
2) remainder: - 32

Explanation:

I will use short division, which consists in using just the coefficients.

This is the full operation:

  literal            x^2      x         0
 coefficient   | 9      - 21     - 20
                    |
                 1 |            9       - 12
                 -------------------------------------
                      9      -12      - 32

Result:

1) quotient:  9x - 12
2) remainder: - 32

You can prove the result by multiplyin (9x - 12) times (x - 1) and then adding  the remainder (-32).

=> (9x - 12) (x - 1) - 32 = 9x^2 - 9x - 12x + 12 - 32 = 9x^2 - 21x - 20 which proves the answer.

Suppose you travel at 60 mph for 222 miles. How many hours will it take you to reach your destination?
A.) 4.3 hours
B.) 4.5 hours
C.) 3.7 hours
D.) 1.05 hours

Answers

Hey there! :D

Divide 60 by 222 for the number of hours you will need to travel to get to your destination. 

222/60= 3.7

"C" 3.7 hours <== the answer

I hope this helps!
~kaikers
222/60= 3.666.... thus 3.7 c: is your Answer

Write an inequality to represent a number decreased by 15 is at least 4

Answers

x-15 is greater than or equal to 4

The inequality that represents the number decreased by 15 is at least 4 will be equal to x - 15 ≥ 4.

What is inequality?

Inequalities are mathematical expressions where neither side is equal. In inequality, as opposed to equations, we compare the two values.

Less than (or less than and equal to), larger than (or greater or equal to), or not similar to signs are used in place of the equal sign in between.

As per the given data in the question,

Let the number be x.

Number is decreased by 15 which is at least equal to 4.

Then, the inequality will be,

x - 15 ≥ 4

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One liter is approximately 1.06 quarts. Write a direct variation equation that relates x liters to y quarts. what is an equation

Answers

For this case what we should do is write an equation of the form:
 y = k * x
 Where,
 k: proportionality constant.
 We have then that the equation for this case is:
 y = 1.06 * x
 That is to say:
 k = 1.06
 Answer:
 an equation is:
 y = 1.06 * x

If two figures have the same perimeter, they are congruent. True or false?

Answers

false, a trapezoid and a square can have the same perimeter but not be confruent
False.

Two figures may be different shape and have the same perimeter (a square and a circle, for example). If they are different shape, they will not be congruent.

find the lateral area of the given prism

Answers

A = 2h ( l + w)  (2 height ( length + width )
26 is the height
6 is the width
15 is the length
2(26)(6+15)               2(26) means you multiply them
52 (21)
1092m² is you answer

The non-congruent angle in an isosceles triangle is called the

Answers

The non-congruent angle in an isosceles triangle is called the vertex angle.

Hope this helps =)

The non-congruent angle in an isosceles triangle is called the vertex angle.

What is an isosceles triangle?

An isosceles triangle is a triangle that has at least two sides of equal length.

Sometimes it is specified as having exactly two sides of equal length, and sometimes as having at least two sides of equal length, the latter version thus including the equilateral triangle as a special case.

The two angles opposite to the equal sides are congruent with each other. That means it has two congruent base angles and this is called an isosceles triangle base angle theorem.

The angle which is not congruent to the two congruent base angles is called an apex angle.

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Which is more 3 liters or 2997 millilliters

Answers

3 liters because 1 liter is 1000 milliliters 

Which set of points correctly demonstrates a pre-image that has been is reflected over x = -1? A(0,-1) and A'(4,-1) A(0,-5) and A'(0,3) A(-5,0) and A'(3,0) A(0,-4) and A'(0,4)

Answers

Points reflected across x = -1 will be the same distance from it but on the opposite side. The y-values will stay the same for the reflected point. So you can cross out the 2nd and 4th options because they have different y-values. That leaves us with the 1st and 3rd options:

A(0, -1) and A'(4, -1)

See if the x-values are the same distance from -1.

|0 - (-1)| = 1
|4 - (-1)| = 5

The distances are different so let's try the other one:

A(-5, 0) and A'(3, 0)

See if the x-values are the same distance from -1.

|-5 - (-1)| = 4
|3 - (-1)| = 4

The distances are the same, so these points correctly demonstrate a pre-image that has been reflected over x = -1.

The correct set of points that demonstrate a pre-image that has been reflected over x = -1 is A(0,-1) and A'(−2,−1).

What are coordinates?

A pair of numbers called coordinates are used to locate a point or a form in a two-dimensional plane. The x-coordinate and the y-coordinate are two numbers that define a point's location on a 2D plane.

To reflect a point over the line x = -1, we simply need to flip the x-coordinate of the point across the line. In other words, if a point has coordinates (x,y), its image after reflection over x = -1 will have coordinates (-x,y).

Using this rule, we can check each of the given options:

A(0,-1) and A'(4,-1): The reflection of A(0,-1) over x = -1 should have an x-coordinate of -0, which means it should be the same as the original point. A'(4,-1) does not fit this requirement, so this is not the correct set of points.A(0,-5) and A'(0,3): The reflection of A(0,-5) over x = -1 should have an x-coordinate of -0, which means it should be the same as the original point. A'(0,3) does not fit this requirement, so this is not the correct set of points.A(-5,0) and A'(3,0): The reflection of A(-5,0) over x = -1 should have an x-coordinate of 5, which means it should be (-5,0). A'(3,0) does not fit this requirement, so this is not the correct set of points.A(0,-4) and A'(0,4): The reflection of A(0,-4) over x = -1 should have an x-coordinate of -0, which means it should be the same as the original point. A'(0,4) does not fit this requirement, so this is not the correct set of points.

Therefore, the correct set of points is A(0,-1) and A'(−2,−1).

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Multiply and simplify if possible.
√5x(√x - 5 √5)

Answers

The answer would be:
x√5 - 25√x

HELP FAST PLEASE!!!

A telephone pole that is 14 ft. tall has fallen against a house. If the top of the telephone pole touches the house 8 ft. above the ground, what is the angle that the telephone pole makes with the ground?

29.7 degrees
55.2 degrees
60.3 degrees
34.8 degrees

Answers

you would do inverse sin(opposite/hypotenuse) and that will equal the angle. so the answer is 34.8

From the given information , we can make a rough figure as shown in attachment.

Now in the given triangle we can use following formula of sin to get the angle,

[tex] sin x = \frac{Perpendicular}{opposite} [/tex]

We can see from the figure that:

perpendicular = 8 and opposite =14.

Plugging the given values in the formula for sin x,

[tex] sin x = \frac{8}{14} [/tex]

sin x = 0.5714

to find x we have to find sin inverse of 0.5714 ,

x = sin⁻¹(0.5714)

x=34.8 degrees.

Answer : the angle that the telephone pole makes with the ground is 34.8 degrees. option D

Please if some one can help help ! Thank you !!

Answers

The multiplication property of equality lets you multiply both sides of an equation by the same number. That multiplication does not change the truth of the equality or the values of the variables.

As compared to the equations in the 1st step the equations in the 4th step have this description.
  The first equation in the first step has been multiplied by 2.
  The second equation in the first step has been multiplied by 3.


Selection C is appropriate.

This figure is made up of a quadrilateral and a semicircle.

What is the area of this figure?

Use 3.14 for pi. Round your final answer to the nearest tenth.


15.7 units²

17.9 units²

25.7 units²

31.4 units²

Answers

Answer:

Option B. 17.9 units²

Step-by-step explanation:

This figure consist of two figures

1). One quadrilateral

2). One semicircle

Now to get the area of total figure

= Area of triangle + area of semicircle

1). Area of quadrilateral = length × width

= √(3-1)²+(1-2)² × √(3-1)²+(1+3)² = √(4 + 1) ×√(4 + 16) = √5×2√5 = 10

2) Area of semicircle = (1/2)πr²

Radius of the circle = (1/2)√(3-1)²+(1+3)² = (1/2)√(4 + 16) = (1/2)(√20)

r = √5

Area of semicircle = (1/2).(π).(√5)² = (1/2).(3.14)(5) = 7.85

Area of the total figure = 10 + 7.85 = 17.85 ≈ 17.9 units²

Option B is the correct answer.

Assume x = 5, y = 6, and z = 8. what is the value of the expression?

Answers

what is the expression ????

Choose the correct simplification of the expression a to the 7th power times b to the 8th power all over a to the 4th power times b to the 4th power

Answers

First you need to write the numerical equation for the given:

[tex] \frac{ a^{7} b^{8} }{ a^{4} b^{4} } [/tex]

When you will simplify this fraction, you can divide the expressions. Based on the law of exponents when you divide like terms with different exponents, you can subtract the exponents of the denominator from the numerator. 

So if you will simplify the equation:

[tex] \frac{ a^{7} b^{8} }{ a^{4} b^{4} } [/tex]

Subtract the following:

Exponents of a 7-4 and;
Exponents of b 8-4

Your answer should be 
[tex] a^{3} b^{4} [/tex]

PLEASE HELP ME!!

BRAIINLIEST WILL BE GIVEN

Answers

Your answer would be answer choice C. The initial number of transactions is a dependent variable, because the number of transactions made are dependent on the number of hours that have passed.

Hope this helps,
♥A.W.E.S.W.A.N.♥

What are the asymptotes of the graph of f(x) ?

Answers

When in doubt, graph it.

The 3rd and 4th choices are appropriate.

_____
This is what is known as a "logistic function." It is used to model population growth when there is a resource limit. It starts out exponential, but then slows as it reaches the "carrying capacity" of the environment. The lower asymptote is zero; the upper one is the carrying capacity of the resource--here 15/1 = 15.

Factor –7x3 + 21x2 + 3x – 9 by grouping. What is the resulting expression? (3 – 7x)(x2 – 3) (7x – 3)(3 + x2) (3 – 7x2)(x – 3) (7x2 – 3)(3 + x)

Answers

The correct answer is the option (3–7x²)(x–3). The reasons are shown below:

 If you apply the distributive property in (3–7x²)(x–3), you obtain:

 3x-9-7x²(x)+21x²
 3x-9-7x³+21x²
 
 When you order the expression, you have:

 -7x³+21x²+3x-9
 
 Then, the answer is (3–7x²)(x–3)
Answer: (3 - 7x^2) (x - 3)

Explanation:

1) Given: -7x^3 + 21x^2 + 3x - 9

2) Group the first two terms and the second two terms:

[-7x^3 + 21x^2] + [3x - 9]

3) Extract common factor -7x^2 from the first group and common factor 3 from the second group:

-7x^2 [x - 3] + 3[x - 3]

4) Take common factor x - 3

(x - 3) (3 - 7x^2)

By commutative property that is equal to (3 - 7x^2) (x - 3)



A circle has a radius of 6 in.
What is the exact length of an arc formed by a central angle measuring 45°?

Express your answer using π

Answers

the circumference of a circle can be calculated using the following equation;
circumference = 2πr
The radius of the given circle = 6 in.
The circumference of the circle = 2π *6
                                                  = 12π in.
circumference of a complete circle is when the central angle is 360°.
we are asked to find the length of an arc when the central angle is 45°.
the length when central angle is 360° = 12π
therefore when central angle is 45°     = 12π /360 * 45
     the length of the arc = 1.5π in.

The 8 foot diameter circular table has a 4 foot wide extension. What is the total area with the extension? How does the area compare to the area of the 10 foot diameter table? Show your work.

Answers

To compare the areas of the table without the extension and the table with the extension, you would need to find the areas of both. See the attached page for the area of the table with the extension. To compare this to a table with a diameter of 10 ft, you need to calculate the area of the table that has a diameter of 10 feet. See the attached page for this information as well. When you're done make a comparison statement giving both pieces of information in your answer.

A bakery packages cookies in two sizes of boxes, one with 18 cookies and the other with 24 cookies. A small number of cookies are to be wrapped in cellophane before they are placed in a box. To save money, the bakery will use the same size cellophane packages for each box. How many cookies should the bakery place in each cellophane package to maximize the number of cookies in each package?

Answers

Final answer:

The bakery should place 6 cookies in each cellophane package to maximize the number of cookies per package and fit them evenly in both sizes of boxes. This is found by calculating the greatest common divisor (GCD) of the box sizes, which in this case is 6.

Explanation:

To solve the problem of how many cookies the bakery should place in each cellophane package to maximize the number of cookies in each package, we need to find the greatest common divisor (GCD) of the two box sizes, which are 18 cookies and 24 cookies. The GCD represents the largest number of cookies that can be evenly distributed in both box sizes without any leftovers.

Step-by-step Solution:

List the divisors of 18: 1, 2, 3, 6, 9, 18.List the divisors of 24: 1, 2, 3, 4, 6, 8, 12, 24.Find the largest number that appears on both lists, which is 6.Thus, the bakery should use cellophane packages that contain 6 cookies each to maximize the number of cookies per package and ensure that they fit evenly in both the 18-cookie box and the 24-cookie box.

This way, both the smaller and the larger box sizes can be filled with equal-sized packages of cookies, and there will be no leftover cookies.

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