Solve for the variable z in this equation 2y(x+z)=w

A. Z = w-2xy/2y
B. Z = 2w-2xy/2y
C. Z = w-2x/2y
D. Z = w-xy/2y

Answer:

[tex]x = 16.6\ cm[/tex]

Step-by-step explanation:

To answer this question use the secant line theorem.

If two secant segments are drawn towards a circle from an outer point, then the product of the length of the secant segment y and the length of its outer secant segment is equal to the product of the length of the other secant segment and its external secant segment.

This is:

[tex](12+6)*6 = (5+x)*5[/tex]

Now we solve the equation for the variable x

[tex]18*6 = 5*5+x*5[/tex]

[tex]108 = 25+5x[/tex]

[tex]5x = 108-25[/tex]

[tex]5x = 83[/tex]

[tex]x = \frac{83}{5}[/tex]

[tex]x = 16.6\ cm[/tex]

Answer:

16.6

Step-by-step explanation:

got it right online

[tex]\bf ~\hspace{7em}\textit{negative exponents} \\\\ a^{-n} \implies \cfrac{1}{a^n} ~\hspace{4.5em} a^n\implies \cfrac{1}{a^{-n}} ~\hspace{4.5em} \cfrac{a^n}{a^m}\implies a^na^{-m}\implies a^{n-m} \\\\[-0.35em] \rule{34em}{0.25pt}[/tex]

[tex]\bf f(x)=\cfrac{20}{4+3e^{-0.2x}}\implies f(3)=\cfrac{20}{4+3e^{-0.2(\stackrel{\downarrow }{3})}}\implies f(3)=\cfrac{20}{4+3e^{-0.6}} \\\\\\ f(3)=\cfrac{20}{4+3\frac{1}{e^{0.6}}}\implies f(3)=\cfrac{20}{4+3\frac{1}{e^{\frac{3}{5}}}}\implies f(3)=\cfrac{20}{4+3\frac{1}{\sqrt[5]{e^3}}} \\\\\\ f(3)=\cfrac{20}{4+\frac{3}{\sqrt[5]{e^3}}}\implies f(3)\approx\cfrac{20}{4+5.6464}\implies f(3)\approx 3.5421[/tex]

you could also just use plug in 0.6 as the exponent for "e", Euler's constant, in your calculator, and that works the same.

Answer: Option A

[tex]tan(60\°) = \sqrt{3}[/tex]

Step-by-step explanation:

We know the sides and z. So since it is a straight triangle we use the Pythagorean theorem to pull the length of the x side.

[tex]z ^ 2 = x ^ 2 + y ^ 2\\\\x^2 = z^2 - y^2\\\\x=\sqrt{z^2 - y^2}\\\\x=\sqrt{2^2 - 1^2}\\\\x=\sqrt{4 - 1}\\\\x=\sqrt{3}[/tex]

By definition, the tangent of an angle is:

[tex]tan(\theta) = \frac{opposite}{adjacent}[/tex]

In this case:

[tex]adjacent = y=1\\\\opposite=x =\sqrt{3}\\\\\theta=60\°[/tex]

Then:

[tex]tan(60\°) = \frac{\sqrt{3}}{1}[/tex]

[tex]tan(60\°) = \sqrt{3}[/tex]

The answer is:

The correct option is:

A. [tex]\sqrt{3}[/tex]

Since we already know the hypothenuse and the opposite side of the triangle (y), we can calculate the value of "x" using the Pythagorean Theorem.

We have that:

[tex]Hypothenuse^{2}=Adjacent^{2}+Opposite^{2}[/tex]

We know that:

[tex]Hypothenuse=z=2\\Adjacent=x=1[/tex]

So, substituting and calculating we have:

[tex]2^{2}=1^{2}+Opposite^{2}[/tex]

[tex]4-1=Opposite^{2}[/tex]

[tex]Opposite^{2}=3\\Opposite=\sqrt{3}[/tex]

Then,using the following trigonometric relation:

[tex]Tan(\alpha)=\frac{Opposite}{Adjacent}\\\\Tan(60\°)=Tan(\frac{Opposite}{Adjacent})=Tan(\frac{\sqrt{3} }{1})^=\sqrt{3[/tex]

We have that the correct option is:

A. [tex]\sqrt{3}[/tex]

Have a nice day!

Answer:

Iris can make 2 hats in an hour.

Step-by-step explanation:

3 hats in one and a half hours is 1 hat per half hour. 2 hats would take two half hours, which is one whole hour.

She can make 2 hats.

Since she can make 3 hats in 1.5 hours, divide 1.5 by 3 to find the unit amount of hats she can make.

1.5/3=.5

.5 of an hour is 30 mins.

Now, multiply 30 mins by 2 to find the amount of time it would take to make 2 hats.

30*2=60 or 1 hour.

She can make 2 hats in an hour.

Hope this helps!

Answer: x = 19.42, y = 18.47, z = 18°

Step-by-step explanation:

This is assumed to be a 90° triangle so you can use Soh Cah Toa to answer the questions. You must use a calculator for the last step.

[tex]cos\theta=\dfrac{adjacent}{hypotenuse}\implies cos72^o=\dfrac{6}{x}\implies x=\dfrac{6}{cos72^o}\implies x=19.42\\\\\\tan\theta=\dfrac{opposite}{adjacent}\implies tan72^o=\dfrac{y}{6}\implies y=6\ tan72^o}\implies y=18.47\\\\[/tex]

Use Triangle Sum Theorem to find the angle measure of z:

90° + 72° + z = 180°

   162°     + z = 180°

                  z = 18°

8 days ago is -8 and the time was 24 minutes

9 days ago is -9 and the time was 18 minutes.

The time 2 days ago was halfway in between.

Add the two times together and divide by 2:

24 + 18 = 42 / 2 = 21 minutes

The coordinate is at (-2,21)

Answer:

Option A (48 yards).

Step-by-step explanation:

The perimeter of any shape other than the ellipse is given by:

Perimeter = Sum of all sides.

Since there are two pairs of lines and both lines in the pair are congruent in each other in a rectangle, the formula can be updated as:

Perimeter of a rectangle = 2L + 2W; where L is the length and W is the width.

The perimeter of the fence around the rectangular pool is 108 feet and the width of the pool is 6 feet. The length can be calculated by plugging in the values in the above equation:

108 = 2L + 2(6).

2L = 108 - 12.

L = 96/2.

L = 48 feet.

So Option A is the correct answer!!!

The length of the fence in yards, if he uses all 108 feet of material, is 48 feet if Mason has 108 feet of material to build a fence around a rectangular pool on his property.

It is defined as two-dimensional geometry in which the angle between the adjacent sides is 90 degrees. It is a type of quadrilateral.

It is defined as the area occupied by the rectangle in two-dimensional planner geometry.

The area of a rectangle can be calculated using the following formula:

Rectangle area = length x width

It is given that:

Mason has 108 feet of material to build a fence around a rectangular pool on his property.

As we know,

Perimeter = Sum of all sides.

The perimeter of a rectangle (P) = 2L + 2W

Here L is the length and W is the width.

P = 109 feet

W = 6 feet

108 = 2L + 2(6)

2L = 108 - 12

L = 96/2

L = 48 feet.

Thus, the length of the fence in yards, if he uses all 108 feet of material, is 48 feet if Mason has 108 feet of material to build a fence around a rectangular pool on his property.

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Answer:

The lines are parallel.

Step-by-step explanation:

They are parallel if their slopes are the same.

Slope of Line A =  rise / run = (7-5) / (0 - -3) = 2/3.

Slope of Line B = (4-2) / 9-6) = 2/3.

Therefore they are parallel.

The lines passing through points (-3,5) and (0,7) and through points (6,2) and (9,4) are parallel to each other. The equation of a line perpendicular to y=-4x that passes through the point (2,6) is y=1/4x+5.5.

To determine whether the lines are parallel, perpendicular, or neither, we first need to calculate the slope of both lines. The slope of a line is the ratio of the vertical change to the horizontal change between any two points on the line. It's given by the formula m = (y2 - y1) / (x2 - x1).

For line A passing through points (-3,5) and (0,7), the slope (m1) is (7-5) / (0 - (-3)) = 2/3. For line B passing through points (6,2) and (9,4), the slope (m2) is (4-2) / (9-6) = 2/3. Since m1 = m2, Line A and Line B are parallel.

To write an equation of a line in slope-intercept form that is perpendicular to the line y = -4x and passes through the point (2,6), we first note that the slope of lines that are perpendicular to each other multiply to -1. Since the slope of the given line is -4, the slope of the line perpendicular to it would be 1/4. Using the slope-intercept form y = mx + b, where m is the slope and b is the y-intercept, we substitute for m and a point on the line (2,6) to solve for b: 6 = 1/4*2 + b. Solving for b gives b = 5.5. So the equation of the line is y = 1/4x + 5.5.

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Answer:

1.83×[tex]10^{-9}[/tex]

Step-by-step explanation:

The exponent on the base of ten is -9 for both.  The easiest way to do this when that is the case is to factor it out:

[tex]10^{-9}(6.33-4.5)[/tex]

and then perform the subtraction to give you

1.83×[tex]10^{-9}[/tex]

The multiplicative inverse of a number is the reciprocal of the number.

For a whole number this would be making it a fraction with 1 as the numerator.

The  multiplicative inverse of 5 is 1/5

Multiplicative inverse means that the numerator and denominator switch places. Remember that all non fraction numbers can be turned into a fraction by making the denominator 1 like so...

[tex]\frac{5}{1}[/tex]

Now you can take the multiplicative inverse of 5/1 to get...

[tex]\frac{1}{5}[/tex]

^^^That is equal to 0.2

Hope this helped!

~Just a girl in love with Shawn Mendes

I think it is A because the numbers decreased

Answer:

  eight more than a fifth of a number

Step-by-step explanation:

k/5 is one-fifth of a number. When 8 is added to it, the result is ...

  eight more than a fifth of a number

_____

There is no multiplication by 5, so any phrasing with "five times" is incorrect.

The one-fifth multiplier is applied only to k, not to any sum.

The x-coordinate of the solution to the system of linear equations is 0.

To find the x-coordinate of the solution to the given system of linear equations, we need to analyze the data points provided for both Equation 1 and Equation 2.

Similarly, examining the data points for Equation 2, we notice that as x increases by 4, y increases by 1. This implies a constant rate of change and suggests that Equation 2 also follows a linear pattern. We can express Equation 2 in the slope-intercept form:

y = (1/4)x + b.

To find the x-coordinate of the solution to the system, we need to set the two equations equal to each other and solve for x.

Equating the two equations, we have:

-x + b = (1/4)x + b

By simplifying the equation, we can eliminate the b term:

-x = (1/4)x

Next, we can multiply both sides of the equation by 4 to eliminate the fraction:

-4x = x

Bringing all the x terms to one side, we get:

-4x - x = 0

Combining like terms, we have:

-5x = 0

Finally, we divide both sides of the equation by -5 to solve for x:

x = 0

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Answer: Radical conjugate.

Step-by-step explanation:

By definition  [tex]a+\sqrt{b}[/tex] and [tex]a-\sqrt{b}[/tex] are called "Conjugate radicals".

Therefore, by this definition, you can know the following:

1) [tex]a+\sqrt{b}[/tex] is the conjugate of [tex]a-\sqrt{b}[/tex]

2) [tex]a-\sqrt{b}[/tex] is the conjugate of [tex]a+\sqrt{b}[/tex].

Then, since you know that [tex]3+\sqrt{11}[/tex] is a root of a polynomial function, therefore you can conclude that the name given to the other root [tex]3-\sqrt{11}[/tex] of the same function is the following:

"Radical conjugate".

Answer:

The correct statements that are true to functions are :

These above two can be explained as : We write a function as y = f(x), where x is the independent variable, and y is dependent as it depends on x values.

Rest all options are incorrect.

Answer:

The correct options are:

Option A: All functions have a dependent variable.

Option B: All functions have an independent variable.

Option E: A horizontal line is an example of a functional relationship.

Step-by-step explanation:

Consider the provided information.

Function: A function is a relationship where each input has only one output.

Which is denoted by "y=f(x)" where x is input value, also the variable x is independent and y is dependent.

Each input value has exactly one output value vice versa is not true.

Vertical line test: A equation is said to be a function if all vertical lines intersect the graph at most once.

Now consider the provided options:

Option A: All functions have a dependent variable.

This option is true, by the above definition of function.

Option B: All functions have an independent variable.

This option is true, by the above definition of function.

Option C: The range of a function includes its domain.

This option is false.

Understand this with the help of an example:

Consider the function [tex]y=x^2[/tex]

The range of the function is [0,∞) and domain of the function (-∞,∞).

Here range doesn't contains the domain.

Thus this option is wrong.  

Option D: vertical line is an example of a functional relationship.

The equation of the vertical line is x=a where a can be any real number.  

We have different values of y for a unique x also the function fails the vertical line test.

Thus the option D is False.

Option E: A horizontal line is an example of a functional relationship.

The equation of horizontal line is y=a where a can be any real number.

For each input has only one output also it satisfy the vertical line test. We will have same value of y for any x.  Which satisfy the property of function.

Thus this option is true.

Option F: Each output value of a function can correspond to only one input value by definition of function.

Understand this with the help of an example:

Consider the function y=a

The function has same output value for each input value. Which is the contradictory to the option's statement.

Thus, this option is false.

The correct options are:

Option A: All functions have a dependent variable.

Option B: All functions have an independent variable.

Option E: A horizontal line is an example of a functional relationship.

Answer:

Step-by-step explanation:

The values at two points that differ by 1 year differ by $125, so the slope is $125 per year.

The graph shows the total cost of membership, which includes the initiation fee (y-intercept) and yearly membership dues (increase per year). The slope represents the increase per year: the yearly membership dues.

The slope of a line is determined by the change in the y-axis divided by the change in the x-axis. In this case without specific graphical data, it is conjectured that the slope may represent the yearly membership cost increase or decrease over time. A positive slope shows an increase, while a negative slope shows a decrease.

The question seems to be asking about the slope of a line related to the cost of a membership at a nature preserve. However, the provided reference information does not connect directly to this question, but outlines concepts of slope in economics and business scenarios rather than the nature preserve context. In general, the slope of a line is calculated by the change in the y-axis divided by the change in the x-axis. In this context, without a graph, one can conjecture that the slope may represent the yearly membership cost increase or decrease over time. A positive slope indicates an increase, whereas a negative slope indicates a decrease.

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The value of x is 20.1036 given that x³=8125. This can be obtained by using prime factorization.

The number 8125 can be written as factors of primes as,

8125 = 5×5×5×5×13

x³ = 5×5×5×5×13

Take cube roots on both sides,

⇒ x = ∛5×5×5×5×13

x = 5∛5×13

x = 5 × 4.02072 ⇒ x = 20.1036

Hence the value of x is 20.1036 given that x³=8125.

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To solve the equation x^3 = 8125 for x, we need to take the cube root of both sides of the equation. The cube root of a number y, denoted as y^(1/3), is a number which, when raised to the power of 3, gives y.
So, let's calculate the cube root of 8125:
First, we can factor 8125 into its prime factors to help simplify the cube root:
8125 = 5 * 1625 = 5 * 5 * 325 = 5 * 5 * 5 * 65 = 5 * 5 * 5 * 5 * 13   (Since 65 = 5 * 13)
Now that we have the prime factorization of 8125, we can group the factors into triples:
8125 = (5 * 5 * 5) * 13
Notice that there are three 5s in one group and a leftover 13 that cannot form a triple.
The cube root of a product of factors is the product of the cube roots of those factors, so taking the cube root of both sides of the equation gives us:
x = (5 * 5 * 5)^(1/3) * 13^(1/3)
x = 5 * 13^(1/3)
Because 13 is a prime number and cannot be broken down any further, it does not have a rational cube root. As a result, 13^(1/3) is an irrational number and cannot be represented exactly as a fraction. However, we can write the exact answer as:
x = 5 * 13^(1/3)
To find an approximate rational representation, we can look for a fraction that is close to the cube root of 13. Since we cannot do this exactly without a calculator, we can only leave our final answer like this, with the understanding that the cube root of 13 remains irrational.
In conclusion, the exact result, in simplest form without using an irrational-to-rational conversion (which would not be exact), is:
x = 5 * 13^(1/3)

Coordinates are the group of a number used to indicate the position of a point in a graph or at a scale.the coordinate of Cristian's house are (11,0)

Given-

Jayda's house is located at (1, 5).

A fast-food restaurant is located at (9, 1).

Fast-food restaurant partitions the way from Jayda's house to Cristian's house by a ratio of 4:1

Coordinates are the group of a number used to indicate the position of a point in a graph or at a scale.

Let the coordinate of jadya's be A (1,5))

Let the coordinate of Cristian's be B ([tex]x_2,y_2[/tex])

Let the coordinate of fast food restaurant be R (9,1)

The ratio is 4:1. Thus m is 4 and n is 1.

The coordinate of the point B is,

[tex]x_R=\dfrac{nx_1+mx_2}{m+n}[/tex]

[tex]9=\dfrac{1\times1+4\times x_2}{1+4}[/tex]

[tex]9=\dfrac{1+4 x_2}{5}[/tex]

[tex]4 x_2=9\times 5-1[/tex]

[tex]x_2=\dfrac{44}{4} =11[/tex]

Find the other point of Critian's house,

[tex]y_R=\dfrac{ny_1+my_2}{m+n}[/tex]

[tex]1=\dfrac{1\times5+4\times y_2}{1+4}[/tex]

[tex]1=\dfrac{5+4 y_1}{5}[/tex]

[tex]4y_1=5-5[/tex]

[tex]y_1=0[/tex]

Thus the coordinate of Cristian's house are (11,0).

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Answer:

The answer is B.

Step-by-step explanation:

Simply you change 6 3/4 into decimal form which is 6.75 then you divide it by the amount which is 3/4= .75

divide 6.75 by .75 equals 9

i hope this helps

For this case we have that there are a total of 14 male students and a total of 16 female students. Thus, there is a total of 30 students distributed in the four categories.

On the other hand, we have a total of 8 Junior students.

Then, the probability of selecting a student Junior is [tex]\frac {8} {30} * 100 = 26.67[/tex]

Rounding off we have 27%

Answer:

27%

The probability that the student is junior to the nearest whole percent is 27%

Probability is defined as the likelihood or chance that an event will occur.

Probability = Expected outcome/Total outcome

The total outcome will be the total number of students (both male and female)

Total outcome = 4+6+2+2+3+4+6+3

Total outcome = 30

Since we are to find the probability that the student is a junior.

Total Juniors = 2 + 6 = 8

Expected outcome = 8

Probability that the student is junior = 8/30

Express as a percentage:

[tex]Pr(Juniors)=\dfrac{8}{30} \times 100\%\\ Pr(Juniors)=\dfrac{800}{30}\\ Pr(Juniors)=26.66\%\\[/tex]

Hence the probability that the student is a junior is 27%.

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Answer: Option a

They are equal and parallel

Step-by-step explanation:

If a and b have the same direction then necessarily a and b are parallel.

We know that they also have the same magnitude.

Two vectors are equal if they have the same magnitude and direction.

Then we can say that a and b are equal and we can also say that they are parallel.

Therefore the correct option is the option a

Answer:

Option B [tex]HI=5\sqrt{2}\ units[/tex]

Step-by-step explanation:

Applying the Pythagoras Theorem

[tex]HI^{2}=(y2-y1)^{2}+(x2-x1)^{2}[/tex]

substitute the given values

[tex]HI^{2}=(2+3)^{2}+(3+2)^{2}[/tex]

[tex]HI^{2}=(5)^{2}+(5)^{2}[/tex]

[tex]HI^{2}=50[/tex]

[tex]HI=5\sqrt{2}\ units[/tex]

Answer:

B

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

140 coins total

Step-by-step explanation:

Straightforward, this reads "7 is 5% of how many?".  Algebraically, the word "is" means an equals sign, and the word "of" means you multiply.  Of course, the 5% needs to be in decimal form.  Taking the sentence above, algebraically it is:  7 = .05x.  Divide by .05 on both sides to get x = 140

Answer:

The coordinate would be (-1, -1)

Step-by-step explanation:

Answer:

  ±1/5, ±1, ±11/5, ±11

Step-by-step explanation:

Potential rational roots of 5x² -7x +11 will be of the form ...

  (divisor of 11)/(divisor of 5)

so will include ...

  ±1/5, ±1, ±11/5, ±11

Answer:

r=0.8

Step-by-step explanation:

We know that a geometric series has the following look: (see picture attached).

Comparing both series, we can clearly see that r=0.8

The value of r in a geometric series can be positive, negative, or zero.

The value of r in a geometric series can be positive, negative, or zero. When r is positive, it means the population is increasing in size. When r is negative, it means the population is decreasing in size. And when r is zero, it means the population size is unchanging, which is known as zero population growth.

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Answer:

24 m

Step-by-step explanation:

The last un-labeled side of the figure is 6 - 4 = 2 m

Simply add all the sides (including the one not labeled) to get the perimeter

4+6+6+2+2+4 = 24 m

Answer:

24m

Step-by-step explanation:

6 + 6 + 2 + 2 + 4 + 4 =24

Answer:

The answer in the procedure

Step-by-step explanation:

we know that

Figures can be proven similar if one, or more, similarity transformations (reflections, translations, rotations, dilation's) can be found that map one figure onto another.  

In this problem to prove circle 1 and circle 2 are similar, a translation and a scale factor (from a dilation) will be found to map one circle onto another.

we have that

Circle 1 is centered at (5,8) and has a radius of 8 centimeters

Circle 2 is centered at (1,-2) and has a radius of 4 centimeters

step 1

Move the center of the circle 1 onto the center of the circle 2

the transformation has the following rule

(x,y)--------> (x-4,y-10)

so

(5,8)------> (5-4,8-10)-----> (1,-2)

center circle 1 is now equal to center circle 2  

The circles are now concentric (they have the same center)

step 2

A dilation is needed to decrease the size of circle 1 to coincide with circle 2

scale factor=radius circle 2/radius circle 1-----> 4/8----> 0.5

radius circle 1 will be=8*scale factor-----> 8*0.5-----> 4 cm

radius circle 1 is now equal to radius circle 2  

therefore

A translation, followed by a dilation will map one circle onto the other, thus proving that the circles are similar

Answer:

  8 cm

Step-by-step explanation:

See the diagram below.

The triangle formed by the radius, half the chord length, and the distance (d) from the center to the water is a right triangle with hypotenuse 20 cm and one leg length 16 cm. Then the other leg (d) can be found using the Pythagorean theorem:

  d^2 + 16^2 = 20^2

  d = √(400 -256) = 12

The depth of the water is the difference between this distance and the radius, so is ...

  20 cm - 12 cm = 8 cm

The maximum depth of the water in the pipe is 8 cm.

Answer:

8 cm

Step-by-step explanation: