In ΔVWX, the measure of ∠X=90°, the measure of ∠W=25°, and WX = 61 feet. Find the length of XV to the nearest foot.

Answers

Answer 1
Final answer:

The length of XV in triangle VWX is approximately 26 feet.

Explanation:

To find the length of XV, we can use the trigonometric relationship in a right triangle. In triangle VWX, the measure of angle W is 25° and angle X is 90°. We can use the sine function to find the length of XV. The sine of angle W is equal to the length of the side opposite angle W divided by the length of the hypotenuse. So, we have sin(25°) = XV/61. Rearranging the equation, we get XV = 61 * sin(25°). Plugging in the values, we find that XV is approximately 26 feet.


Related Questions

The solution to 15 a2 − 1 = 5 2a − 2 is a = . The extraneous solution is a = .

Answers

For this case the correct expression is:
 15 / (a ^ 2 - 1) = 5 / (2a - 2)
 Rewriting we have:
 3 / (a ^ 2 - 1) = 1/2 (a - 1)
 6 / (a ^ 2 - 1) = 1 / (a - 1)
 6 (a - 1) = (a ^ 2 - 1)
 6 (a - 1) = (a-1) (a + 1)
 (a + 1) = 6
 a = 6-1
 a = 5
 Answer:
 
The solution is:
 
a = 5

Answer:

5 and 1

1 is extraneous

Step-by-step explanation:

Q1 :Let f(x)=2x^2−8


The quadratic function g(x) is f(x) translated 2 units down


What is the equation for g(x)


Q2 Let f(x)=[tex] \frac{3}{4} [/tex]x2−1.


The function g(x) is a vertical stretch of f(x) by a factor of 8.


What is the equation of g(x)?


Q3 The graph of the function g(x) is a transformation of the parent function f(x)=x2 .


Which equation describes the function g?

(refer to picture attached)

A. g(x)=x2+2 ​

B. g(x)=(x−2)2

C. g(x)=(x+2)2 ​

D. g(x)=x2−2

Answers

Question # 1.

[tex]f(x) = 2 x^{2} -8 \\[/tex]
g(x) is the translation of f(x) 2 units down.

Vertical translation can be expressed as addition or subtraction of a number from the function value. Subtraction indicates that the function is translated down. So, translation of f(x) by 2 units down can be expressed as:

g(x) = f(x) - 2
Using the value of f(x), we can write:

[tex]g(x)= 2x^{2} -8-2 \\ \\ g(x)=2 x^{2} -10[/tex]

Question # 2

[tex]f(x)= \frac{3}{4} x^{2} -1 [/tex]

A function can be vertically stretched by multiplying it with a number having magnitude greater than 1. f(x) is to be stretched by a factor of 8 to get g(x), so we can write:

g(x) = 8 * f(x)

Using the value of f(x) we can write:

[tex]g(x)=8* (\frac{3}{4} x^{2} -1) \\ \\ g(x)=6 x^{2} -8[/tex]

The square root of 53 lies between which two numbers?

Answers

The square root of 53 lies between 7 and 8.

There are a couple ways to find this. You could...
A. Use a calculator and simply find the square root of 53 (7.280...) OR
B. You could square each number (1^2, 2^2, 3^2...) until you get the closest 2 numbers (one less than and one greater than) to 53 (7^2 = 49) and (8^2 = 64).

I hope this helps!

The resonance frequency f in an electronic circuit containing inductance L and capacitance C in series is given by f=1/2π√LC. Determine the inductance L in an electric circuit if the resonance frequency is 6.2 and the capacitance is 0.0001. Round your answer to the nearest tenth.

10270.1
6.6
256.8
0

Answers

For this case we have the following function:
 f = 1 / (2π√LC)
 Clearing L we have:
 √LC = 1 / (2πf)
 LC = (1 / (2πf)) ^ 2
 L = (1 / C) * (1 / (2πf)) ^ 2
 Substituting values:
 L = (1 / 0.0001) * (1 / (2 * 3.14 * 6.2)) ^ 2
 L = 6.596253438
 Round to the nearest tenth:
 L = 6.6
 Answer:
 
L = 6.6
In this situation, you have to use the equation
 f = 1 / (2π√LC)
 

To find L
 √LC = 1 / (2πf)
 LC = (1 / (2πf)) ^ 2
 L = (1 / C) * (1 / (2πf)) ^ 2

 Substitute the values:
 L = (1 / 0.0001) * (1 / (2 * 3.14 * 6.2)) ^ 2
 L = 6.596253438
 L = 6.6
So the  Answer is this:
 L = 6.6

The Candle Emporium is pouring cylindrical candles. Each candle has a radius of 5 inches and a height of 18 inches. Which formula represents the correct way to find the volume of a candle?
a. Volume= 5x18
b. Volume= pi (5) (18)
c. Volume= pi (18)squared (5)
d. Volume= pi (5)squared (18)

Answers

Hello!

The formula for finding the volume of a cylinder is [tex]V = \pi r ^{2}h[/tex]. The answer choice that matches this is answer choice D. Hope I helped! :3

Answer:

Option D is correct.

Step-by-step explanation:

We are given,

Height of the candles, h  = 18 inches

Radius of the candles, r = 5 inches

Candles are in shape of cylinder.

We have to find correct representation of volume of candle.

Volume of cylinder = [tex]\pi r^2h[/tex]

Volume of candle = ]tex]\pi (5)^2\times18[/tex]

Therefore, Option D is correct.

Which of the following gives all of the coefficients of the algebraic expression -2x^2 +17-15x+7xy

Answers

The coefficients of the algebraic expression -2x² + 17 -15x + 7xy are -2, 17, -15 and 7

How to determine the coefficient of the expression

From the question, we have the following parameters that can be used in our computation:

-2x² + 17 -15x + 7xy

Consider an expression represented as

Ax

Where A is a constant and x is the variable

The coefficient of the expression is A

Using the above as a guide, we have the following:

The coefficients of the algebraic expression are -2, 17, -15 and 7

Question

Which of the following gives all of the coefficients of the algebraic expression -2x^2 +17-15x+7xy

a. 2,  17, 15 and 7

b. -2, 17, -15 and 7

c. -2, -17, -15 and 7

d. -2, -17, 15 and 7

PLEASE ANSWER + BRAINLIEST!!!

What is the value of 3x^2 - 5xy + 5y^2 for x = -6 and y = 2?

A. -68

B. -4

C. 188

D. 208

Answers

If you put in x for -6 and y for 2, you get 3(-6)^2 - 5(-6)(2) + 5(2)^2. 

Simplifying all the numbers, it's 3(36) + 30(2) + 5(4), and then 108+60+20. Going along, you get 188

20 points!
Looking at circle O, ∠BOC is a(n)
Please contact your teacher immediately if you do not see the image.

Question options:

minor angle


central angle


inscribed angle


major angle

Answers

Central angle. It is in the center
Short Answer B
A central angle is one that goes through the center of a circle. It's two ends are the endpoints of  the chord BC which you should draw on your sheet. 

If you do, we can talk about the other answers. 
An inscribed angle is one that has it's vertex on the circumference. <BAC is an example. A is the vertex. 

A major angle is the part above BC that goes around the circle such that the angle is larger than 180 degrees. It is described above by BAC going clockwise. It is associated with the arc of a circle.

A minor angle is the angle not included in the major angle. In this case it is the angle formed by sweeping around from B to C underneath the chord BC


Find the amount in a continuously compiunded account for the following condition. Principal, $4000; Annual interest rate, 5.1%; time, 2 years

Answers

Final answer:

Using the given principal of $4000, an annual interest of 5.1%, and a time period of 2 years, the amount in a continuously compounded account will be approximately $4483.48 using the formula A = P*e^(rt).

Explanation:

In this question, we are asked to find the amount in a continuously compounded account. The formula to calculate this is A = P*e^(rt), where A is the amount, P is the principal, r is the rate, t is the time, and e is the base of the natural logarithm, approximately equal to 2.71828.

In this case, P = $4000, r = 0.051 (5.1% expressed as a decimal), and t = 2.

Substituting these values into the formula, we get: A = 4000 * e^(0.051*2). Using a calculator, we can find this to be approximately $4483.48.

So, after 2 years with an annual interest rate of 5.1%, compounded continuously, the account will contain about $4483.48.

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What is the trigonometric ratio for sin C?

Answers

The simplified fraction for sinC will be 9/41

Write the function associated with the graph below

Answers

That's a positive slope... I don't know if that's the kind of answer you're looking for, but it's a start I guess.

Since the value of the function is decreasing exponentially as x decreases ,

The function is of the form [tex] y=ae^{bx}+c,b>0 [/tex].

Since the curve passes through (0,6),

[tex] 6=ae^{0}+c,6=a+c [/tex],

Since the curve passes through (-1,0),

[tex] 0=ae^{-b}+c [/tex].

Since [tex] y=-3 [/tex] is a horizontal asymptote,

[tex] -3=ae^{-\infty}+c,c=-3 [/tex]

From the above 3 equations,

[tex] c=-3,a=9,9e^{-b}=3,e^b=3,b=\ln 3 [/tex].

Therefore, the required function is

[tex] y=9e^{\ln 3 x}-3\\
y=9*3^{ x}-3 [/tex].

It can be verified that the curve [tex] y=9*3^{ x}-3 [/tex] passes through [tex] (-2,-2) [/tex].

After a 40% discount an item costs $360. what is the original cost

Answers

Original Price = Final Price / (100 - Discount)

So...

OP = 360 / 100 - 0.40
OP = 360 / 0.60
OP = 600

The original price is $600. 

To check, do 600 - (600 * 0.40) in a calculator. You get 600 - 240 = 360, the discounted cost. 

Answer:

It is $600

Step-by-step explanation:

hope it helps, murdle

A rectangular plot of land that contains 1500 square meters will be fenced and divided into two equal portions by an additional fence parallel to two sides. find the dimensions of the land that require the least amount of fencing.

Answers

Let x = the length of the rectangle
Let w= the width

Two sections are required, hence 2w of fence required
2x+3w=500

this can be written as:
3w=1500-2x
w=(1500-2x)/3

Area=x*w
replacing w with our expression:
A=x(1500-2x)/3
A=(500x-2x^2)/3

This is a quadratic equation, if we find the axis of symmetry we will know what value of x gives maximum area:
Axis of symmetry: x=-b/2a
From our equation we get:
a=-2/3; b=1500/3
thus
x=(1500/3)/(-(-2/3))
x=750
thus the maximum area will be given by length of 750

Anyone know this geometry question? Will give brainiest

Answers

If AC must be parallel with BD and m∠6 is doubled, m∠3 must be doubled too. 

This is because of the following rule:
When two lines are parallel, which is the occasion with AB and CD, then the corners in which the intecepting parallel lines (AC and BD) stand must be the same. So corner 6 is equivalent to corner 3, corner 1 and corner 5. Corner 2 and corner 4 are equivalent too.

A typist charges $0.90 a page and averages 45 pages per work day. If she works 3 days a week, how much does she earn in a week?

Answers

the answer to this problem is 121.5

Final answer:

The typist earns $121.50 per week by multiplying the charge per page ($0.90) with the daily page average (45 pages) and the number of days worked per week (3 days).

Explanation:

The question asks us to calculate the weekly earnings of a typist who charges $0.90 per page and averages 45 pages per day, working 3 days a week. To find the total weekly earnings, we can multiply the number of pages typed per day by the charge per page, and then multiply that result by the number of days worked in a week.

Multiply the number of pages (45) by the charge per page ($0.90): 45 pages × $0.90 = $40.50 per day.

Multiply the daily earnings by the number of days worked in a week (3): $40.50 × 3 days = $121.50 per week.

Therefore, the typist earns $121.50 per week.

If and represent rational expressions and b0 and y0, what is true of their product? Check all that apply.

Answers

Their product will be rational. Can I see the answer options?

Correct options are Options B, D, E. The product of two rational expressions (a/b) and (x/y) is a rational expression, specifically the ratio of ax and by, or equivalently ax/by. Incorrect options include ay/bx and a/y(x/b).

To determine the product of two rational expressions (a/b) and (x/y), where b ≠ 0 and y ≠ 0, let's explore the given options. Here are the truths about the product:

The product is a rational expression: When you multiply two rational expressions, the result is also a rational expression. This follows from the definition of rational expressions, which are ratios of polynomials.

The product is the ratio of ax and by: Mathematically, multiplying the numerators and denominators of the two rational expressions gives us (ax)/(by).

The product is equivalent to ax/by: This restates the above ratio in a simplified expression form, confirming that the multiplication results in (ax)/(by).

As we can see, the other expressions mentioned (ay/bx, a/y(x/b), a/(y(x/b))) are not correct representations of the product. Correct options are Options B, D, E.

Complete question:

If a/b and x/y represent rational expressions and b0 and y0, what is true of their product? Select three options.

A. The product is equivalent to ay/bx

B. The product is a rational expression.

C. The product is equivalent to a/y(x/b)

D. The product is the ratio of ax and by.

E. The product is equivalent to ax/b(y)

For the function f(x) = x2, what effect will multiplying f(x) by 1/2 have on the graph?

Answers

For this case we have the following function:
 f (x) = x2
 We apply the following transformation:
 Vertical expansions and compressions:
 To graph y = a * f (x)
 If 0 <a <1, the graph of y = f (x) is compressed vertically by a factor a. (Shrinks)
 We have then:
 f (x) = (1/2) * x2
 Answer:
 
is compressed vertically by a factor 1/2

What is the equation of the line that passes through the points (0, -4) and (2, 8)?

A. y = 6x - 4
B. y = 6x + 4
C. y = 4x + 6
D. y = -4x + 6

Answers

Option A is your answer, y = 6x - 4.

m = Y₂ - Y₁ / X₂ - X₁

m = 8 -  (- 4) / 2 - 0
m = 12 / 2
m = 6

So now your equation is y = 6x + b. This eliminates options C and D. Plug in any of your ordered pairs to find b. I picked the first one. 

- 4 = 6(0) + b
- 4 = 0 + b
- 4 = b

Your equation is y = 6x - 4. 

Which system of inequalities is represented by the graph

Answers

For this case we have the following lines:
 y = x
 y = -x
 We then have to evaluate points that belong to the shaded region:
 For (0, 1) we have:
 1> = 0
 1> = - 0
 We observe that both equalities are fulfilled, therefore, we have that the inequalities are:
 y> = x
 y> = - x
 Answer:
 
y> = x
 
y> = - x
 
option D

A. (-3,-5)
B.( -2,-2)
C. (4,9)
D.(13,5)

Answers

12. The inverse relation has the x- and y-values swapped.

The appropriate choice is ...
  D. (13, 5)

Express answer in exact form.

Find the area of one segment formed by a square with sides of 6" inscribed in a circle.

(Hint: use the ratio of 1:1:√2 to find the radius of the circle.)


Answers

Answer:

A = { 9/2 π - 9 } in^2

Step-by-step explanation:

I just did this

Hope this helps !

Final answer:

To find the area of the segment, subtract the area of the triangle from the area of the sector.

Explanation:

To find the area of one segment formed by a square with sides of 6 inches inscribed in a circle, we need to find the area of the sector formed by the circle and subtract the area of the triangle formed by the diagonal of the square.



First, find the radius of the circle using the given square. The diagonal of the square is equal to the diameter of the circle. Using the Pythagorean theorem, we have: r = s×√2/2 = 6×√2/2 = 3√2 inches.Next, find the area of the sector. The formula for the area of a sector is: A = (θ/360) × π r2. Since the square is inscribed in the circle, the angle θ is 90 degrees. Plugging in the values, we have: A = (90/360) × π (3√2)2 = π (9/2) square inches.Finally, find the area of the triangle. The diagonal of the square divides it into two congruent right triangles. The area of one of the triangles is: A = (1/2) b h = (1/2) × 6 × 6 = 18 square inches. Since there are two triangles, the total area of the two triangles is 36 square inches.To find the area of the segment, subtract the area of the triangle from the area of the sector. The area of the segment is: A = π (9/2) - 36 = (9π/2) - 36 square inches. This is the exact form of the area of one segment formed by the square inscribed in the circle.

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What is the radius of convergence of the maclaurin series (2x)/(1+x^2)?

Answers

To solve this problem you must apply the proccedure shown below:
 1. You have to find the radius of convergence of the following Maclaurin series:
 [tex](2x)/(1+ x^{2} ) [/tex]
 2. Let's take the denominator and find the roots:
 [tex]1+ x^{2} =0[/tex]
 [tex] x^{2} =-1 \\ x= \sqrt{-1} \\ x1=i \\ x2=-i[/tex]
 3. The roots are [tex]x1=i \\ x2=-i[/tex] and the distance from the origin is [tex]1[/tex].
 Therefore, the answer is: [tex]1[/tex]

The radius of convergence of the maclaurin series is 1 unit.

It is given that maclaurin series  [tex]\rm \frac{2x}{(1+x^2)}[/tex]

It is required to find the radius of the convergence of the maclaurin series.

What is maclaurin series?

It is defined as the expansion of a function that provide the approximation of the given function at any point of function.

We have:

[tex]\rm \frac{2x}{(1+x^2)}[/tex]

To find the radius of convergence of the maclaurin series, we must find the roots of denominator hence:

[tex]\rm 1+x^2= 0\\\\\rm x^2 = -1\\\\[/tex]

From the complex number: the roots are imaginary:

[tex]\rm x_1 = i\\x_2 = -i[/tex]

i is the iota

and the distance from the origin (0,0) is 1.

Thus, the radius of convergence of the maclaurin series is 1 unit.

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Park rangers notice a negative correlation between the number of available campsites in a park and the amount of litter on the park's trails. Which variable is most likely the lurking variable that explains the correlation? Question 3 options: age of trees in the park number of eagles spotted in the park number of visitors to the park density of trees in the park

Answers

The answer is The number of visitors to the park.

We have been given that a park rangers notice a negative correlation between the number of available campsites in a park and the amount of litter on the park's trails.

We need to figure out the lurking variable that describes the given correlation.

Out of the given options, the most appropriate variable that describes that negative correlation between number of available campsites in the part and the amount of litter on the park's trails is number of visitors to the park.

The reason, why number of visitors to the park is the lurking variable for the given negative correlation, is that more the number of visitors, more the litter they produce and consequently, lesser the number of available campsites.

how do you convert cos(x) into sin(x) and tan(x) ?

Answers

since tan x = sin x    /    cos x, we could write:

              tan x
cos x = ----------    In other words, rewrite "cos x" in an expression as

  tan x 
-----------
  sin x

Write the equation of a horizontal line that passes through the point (3, -3).

Answers

check the picture below.

If you add the lengths of the focal radii of an ellipse, what other value will you produce?



2a



2b



2c



The eccentricity

Answers

The figure below shows the representation of this problem. We know from mathematics that an ellipse is a curve in a plane surrounding two focal points called F1 and F2, such that the sum of the distances to the two focal points is constant for every point on the curve. So, for the figure If you add the lengths of the focal radii of an ellipse will produce a constant value equal to 2a that is the line in red.

Equation of an ellipse

→having center (0,0) , vertex ([tex](\pm a ,0)[/tex] and covertex [tex](\pm b ,0)[/tex] and focus [tex](\pm c ,0)[/tex] is given by:

[tex]\frac{x^2}{a^2} + \frac{y^2}{b^2}=1[/tex]

As definition of an ellipse is that locus of all the points in a plane such that it's  distance from two fixed points called focii  remains constant.

Consider two points (a,0) and (-a,0) on Horizontal axis of an ellipse:

Distance from (a,0) to (c,0) is = a-c = [tex]F_{1}[/tex]

Distance from (-a,0) to (c,0) is = a + c = [tex]F_{2}[/tex]

[tex]F_{1} + F_{2} =[/tex] a -c + a +c

          = a + a

        = 2  a  →(Option A )


Complete the equation of the line through (-8,8) and (1,-10). Use exact numbers.

Answers

Since you know the x and y values, you just have to plug these into the linear slope-intercept equation:

y = mx + b
-10 = m(1) + b
m + b = -10
b = -10 - m

Now that we have a value for b, we can plug this into the other equation:

8 = m(-8) + b
8 = -8m + (-10 - m)
8 = -9m -10
18 = -9m
m = -2

Now that we know what m is equal to, we can plug this into our first equation to get an answer for b:

b = -10 - m
b = -10 -(-2)
b = -10 + 2
b = -8

Our final equation is y = -2x - 8

The equation of the line through (-8,8) and (1,-10) is y = -2x - 8

Using the slope intercept form equation.

y = mx + b

where

m = slope

b = y-intercept

Therefore,

(-8,8) (1,-10)

m = -10  - 8 / 1 + 8 =  - 18  / 9 = -2

Therefore,

let's find b as follows:

(1, -10)

y = -2x + b

-10 = -2(1) + b

b = -10 + 2

b= -8

Therefore,

y = -2x - 8

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22 POINTS, NEED URGENT HELP

Write the equation of each circle:

1. R with center R(-1, 8) and radius 5

2. K with center K(4,0) and that passes through (2,0)

Answers

1) start with (x-h)^2 + (y-k)^2 = r^2.  Insert the given info:  center at (-1,8) and radius 5:

              (x+1)^2 + (y-8)^2 = 5^2     (answer)

solve for z (attachment)

Answers

By similar triangles
                      z / 4 = (16 + 4)/z
                      z^2 / 4 = 20
                           z^2 = 80
                               z = 4√5
Therefore the answer to this question is z = 4√5.
Look at the picture.
[tex]\Delta ABD\ and\ \Delta BCD\ are\ similar,\ therefore:\\\\\dfrac{y}{4}=\dfrac{16}{y}\ \ \ \ |cross\ multiply\\\\y\cdot y=4\cdot16\\\\y^2=64\to y=\sqrt{64}\to y=8[/tex]
Use Pythagorean theory:
[tex]z^2=4^2+8^2\\\\z^2=16+64\\\\z^2=80\to z=\sqrt{80}\\\\z=\sqrt{16\cdot5}\\\\z=\sqrt{16}\cdot\sqrt5\\\\\boxed{z=4\sqrt5}[/tex]

Daniela is a stain glass artist; she created the window below for her living room. What is
the area of the window she created?

Answers

The window has a shape of a semi-circle (half of a circle).

We know the diameter d = 12 ft.

The area of a (complete) circle is given by the formula:
A = π × r²

The radius can be found by halving the diameter:
r = d ÷ 2
  = 12 ÷ 2
  = 6 ft

Therefore the area of the circle will be:
A = π × r²
    = 3.14 × 6²
    = 3.14 × 36
    = 113.04 ft²

And the area of the semi-circle:
A = 113.04 ÷ 2
   = 56.52 ft²

Hence, the area of the window will be 56.52 ft².
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