Which figure shows an example of symmetry?
O A.
OB.
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To find the domain and range, the function we simply solve the equation y=f(x) to determine the values of the independent variable x and obtain the domain.

Domain: In simple words, the domain is the set of values of x for which function f(x) is defined,  and also the set of values of x for which we can calculate the value of f(x)

Range: The range of function can define as the set of values of f(x) for the value of its domain

For finding the domain of any function f(x) ..find the value of all x for which function f(x) is defined

For finding the value of the range of function f(x), calculate the value of f(x) for all values of x in the set of domains of f(x)

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Answer:

8000

Step-by-step explanation:

bc if its 3 picnic its its 8000

a) The mean and the standard deviation of the proportion of 50 randomly-selected songs that are Beatles songs are given as follows:

b) The probability that more than 30% of the 50 songs are Beatles songs is given as follows: 0.2594 = 25.94%.

c) The mean and the standard deviation of the proportion of 40 randomly-selected songs that are Beatles songs are given as follows:

The z-score of a measure X of a variable that has mean symbolized by [tex]\mu[/tex] and standard deviation symbolized by [tex]\sigma[/tex] is obtained by the rule presented as follows:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

For item a, the sample size and the proportion are given as follows:

n = 50, p = 0.26.

Hence the mean and the standard error are given as follows:

(using the third bullet point, about the Central Limit Theorem).

The probability that the proportion is above 30% is one subtracted by the p-value of Z when X = 0.3, hence:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem:

[tex]Z = \frac{X - \mu}{s}[/tex]

Z = (0.3 - 0.26)/0.062

Z = 0.645.

Z = 0.645 has a p-value of 0.7406.

(halfway between Z = 0.64 and Z = 0.65 on the z-table appended at the end of the answer).

1 - 0.7406 = 0.2594 = 25.94%.

For item c, the sample size and the proportion are given as follows:

n = 40, p = 0.33.

Hence the mean and the standard error are given as follows:

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The linear regression equation is given as follows:

y = -30x + 1048.8.

The estimate for the number of cases in 2026 is given as follows:

689 new cases.

The equation for the line of fit is obtained inserting the points of the data-set into a linear regression calculator.

(this is because there are multiple types of regression, such as logistic, exponential and quadratic regression).

The points for this problem are given as follows:

(0, 1047), (1, 1020), (2, 989), (3,943), (4,964), (5,880).

Inserting these points into a calculator, the regression equation is given as follows:

y = -30x + 1048.8.

2026 is 12 years after 2014, hence the estimate is calculated as follows:

y = -30(12) + 1048.8

y = 689 new cases.

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Answer:

(- 4, - 2 ) and (- 1, 2 )

Step-by-step explanation:

to determine which ordered pairs make the equation true

substitute the x and y coordinates of each point into the left side of the equation and if  equal to the right side then it is a solution.

(3, - 1 )

4(3) - 3(- 1) = 12 + 3 = 15 ≠ - 10 ← not true

(- 4, - 2 )

4(- 4) - 3(- 2) = - 16 + 6 = - 10 ← true

(1, 4 )

4(1) - 3(4) = 4 - 12 = - 8 ≠ - 10 ← not true

(- 1, 2 )

4(- 1) - 3(2) = - 4 - 6 = - 10 ← true

Answer: 26.7

Step-by-step explanation:

[tex]\frac{9.2}{v}=\tan 19^{\circ}\\\\\frac{v}{9.2}=\frac{1}{\tan 19^{\circ}}\\\\v=\frac{9.2}{\tan 19^{\circ}}\\\\v \approx 26.7[/tex]

Answer: The given equation is 9.2/v = tan(19). To solve for v, we can first multiply both sides of the equation by v to get rid of the denominator on the left side. This gives us 9.2 = v * tan(19).

Next, we can divide 9.2 by tan(19) to find the value of v. The value of tan(19) is approximately 0.3420201, so 9.2 / 0.3420201 = 26.884956 (rounded to 1 decimal place).

So the value of v in the equation is approximately 26.9 (to 1 decimal place).

Step-by-step explanation:

The required distance from the base of the lighthouse to the sailboat is 11 feet.

Let x be the distance from the base of the lighthouse to the sailboat.

We know that the angle of depression is 6° and the height of the observer is 104 ft. We can use the tangent function to find the ratio of the opposite side (x) to the adjacent side (104 ft).

tan(6°) = x / 104

To find x, we can multiply both sides by 104:

x = 104 × tan(6°)

x = 104 × 0.10510

x = 10.9308

x ≈ 11

The value of x ≈ 11 is the distance from the base of the lighthouse to the sailboat.

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Answer:

The vertex of a parabolic function like V(x) = 325x² - 4600x + 145000 can be found by using the vertex form of the equation, which is y = a(x-h)² + k. In this form, (h,k) is the vertex of the parabola. To convert the equation V(x) = 325x² - 4600x + 145000 into vertex form, we can complete the square to get the following:

V(x) = 325(x² - 14x) + 145000

To complete the square we will add and subtract (14/2)² = 49

V(x) = 325(x-7)² + 145000 - 49*325 = 325(x-7)² + 138375

So the vertex of the parabola is (h,k) = (7, 138375).

The vertex of a parabolic function represents the minimum or maximum point of the parabola, depending on whether the parabola opens upwards or downwards. In this case, the vertex represents the maximum value of the home. It means that the value of the home reaches its highest point at 7 years after 2020, and this highest point is 138375.

So in terms of the value of the home, the vertex of the function represents the point at which the housing market reaches its peak, after which the value of the home begins to decrease.

Therefore , the solution of the given problem of ratio comes out to be 2:3 for the following cylinder and sphere.

An order pair of values "a" and "b" can be expressed with the straightforward formula "a / b," with "b" must be no bigger than zero. A ratio is created by adding two ratios together. In the event when there was only one guy and three women, the proportion might be shown as 1:3. 1/4 of the group are guys, and 3/4 are girls. A part can be a statistic, a portion of a thing's volume, or a division among two or more things.

Here,

Here, a sphere is engraved within a cylinder of height h=2r.

Sphere volume =>

4/3πr³.

and Cylinder Volume =πr²h = πr²(2r) = πr³

Volume of the sphere divided by the volume of the cylinder is equal to or greater than

=>4πr³/ 3×2πr³

=>2:3

Therefore , the solution of the given problem of ratio comes out to be 2:3 for the following cylinder and sphere.

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Answer:

The equation csc^5 (theta) - 4 csc (theta) + 1 = 0 can be solved by factoring the left-hand side of the equation.

csc^5 (theta) - 4 csc (theta) + 1 = 0

csc (theta) (csc^4 (theta) - 4) + 1 = 0

csc (theta) (csc^2 (theta) - 2)(csc^2 (theta) + 2) + 1 = 0

We can see that the last expression is a polynomial equation of the form (ax+1)(bx^2+c*x+d)=0 where x= csc(theta) , a=1, b=1, c= -2, d=2

Solving for x = 0, we get x=0 which is not a valid solution because csc(theta) is defined only for theta != k*pi where k is an integer.

Solving for x= -1/2 and x= 1/2, we get csc(theta) = -1/2 and csc(theta) = 1/2

To find theta, we can use the reciprocal cosecant function (csc) which is defined as 1/sin(theta)

csc(theta) = -1/2 => sin(theta) = -2

csc(theta) = 1/2 => sin(theta) = 2

Answer: 0 is cos^4(theta) = (4 - 1/sin(theta))(1-sin^2(theta))^2.

Step-by-step explanation: To solve the equation csc^5(theta) - 4csc(theta) + 1 = 0, we can use the identity csc^n(theta) = 1/sin^n(theta).

First, we can apply the identity:

1/sin^5(theta) - 4/sin(theta) + 1 = 0

Next, we can factor out sin(theta) from the first two terms:

sin(theta)(1/sin^4(theta) - 4) + 1 = 0

We can then use the identity sin^2(theta) = 1 - cos^2(theta) to rewrite the first term:

sin(theta)(1 - cos^4(theta)/(1-cos^2(theta))^2 - 4) + 1 = 0

We can then divide both sides of the equation by sin(theta), and we get:

1 - cos^4(theta)/(1-cos^2(theta))^2 - 4 + 1/sin(theta) = 0

We can then simplify this equation to get:

cos^4(theta)/(1-cos^2(theta))^2 = 4 - 1/sin(theta)

By using the identity cos^2(theta) = 1-sin^2(theta) we can simplify the equation further:

cos^4(theta) = (4 - 1/sin(theta))(1-sin^2(theta))^2

So to find the solution we can use double angle identities to simplify the right side of the equation.

Therefore, the solution to the equation csc^5(theta) - 4csc(theta) + 1 = 0 is cos^4(theta) = (4 - 1/sin(theta))(1-sin^2(theta))^2.

The curvature of the curve r(t) = (9t, t², t³) at the point (9, 1, 1) is (3/ 800)√(91/ 94).

The curvature of a curve at a given point is a measure of how much the curve is bending at that point. In order to find the curvature of a curve, we need to first find the unit tangent vector, the unit normal vector, and the unit binormal vector at the point in question.

Given r(t) = (9t, t², t³) at the point (9, 1, 1). Thus t = 1 at (9, 1, 1).

The unit tangent vector at the point (9, 1, 1) is given by the derivative of r(t) with respect to t, evaluated at t = 1

r'(t) = (9, 2t, 3t²)

so T(t) = r'(1) = (9, 2, 3)

The magnitude of T(1) = √(9² + 2² + 3²) = √(94)

The unit tangent vector at (9, 1, 1) is T(1) = (9/√(94), 2/√(94), 3/√(94))

The unit normal vector, N(1), is given by the derivative of T(1) with respect to t, evaluated at t = 1

T'(t) = (0, 2, 6t)

T'(1) = (0, 2, 6)

The magnitude of T'(1) = √(0² + 2² + 6²) = √(40)

The unit normal vector at (9, 1, 1) is N(1) = (0, 2/√(40), 6/√(40))

The unit binormal vector, B(1), is given by the cross product of T(1) and N(1)

B(1) = T(1) × N(1)

= (18/√(40×94), 6/√(40×94), -54/√(40×94))

|B| = (3/2)√(91/ 235)

Finally, the curvature, k, at the point (9, 1, 1) is given by the magnitude of T'(1)

[tex]k = \frac{|B|}{|T|^3}[/tex]

k = (3/2)√(91/ 235)/ (√40)³ = (3/ 800)√(91/ 94)

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7 white pairs coincide when upper half is folded over the centerline.

What is triangle ?

A triangle is a three-sided polygon that has three straight sides and three angles. The sum of the angles in a triangle is always 180 degrees. Triangles are classified based on their side lengths or angle measures.

We know that each half of the figure is composed of 3 red triangles, 5 blue triangles and 8 white triangles.

When the upper half is folded down over the centerline, 2 pairs of red triangles coincide, as do 3 pairs of blue triangles. there are 2 red-white pairs.

So, 2 red triangles + 3 blue triangles + 2 red-white pairs = 7 pairs of triangles that coincide

The total number of triangles in each half of the figure is 3 red triangles + 5 blue triangles + 8 white triangles = 16

If 7 pairs of triangles coincide, then 16 - 7 = 9 pairs do not coincide.

And since 2 red-white pairs coincide, then the remaining 9 - 2 = 7 pairs must be white pairs.

So 7 white pairs coincide when upper half is folded over the centerline.

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Answer:

(a) There are 2 groups. The treatment group will hear older students describe overcoming challenges. The control group won't hear anything.

Label each student with a different integer from 01 to 40. Go to a line in Table D and read two-digit groups moving from left to right. The first 20 different labels between 01 and 40 identify the 20 students who hear older students talking. The remaining 20 students don't hear anything. Ignore groups of digits from 41 to 00.

(b) Separate the 40 freshmen into 2 groups according to their history of academic performance. Carry out treatment separately in each block to account for the variation due to the history of academic performance.

Step-by-step explanation:

(a) We want to infer the cause and effect between hearing older students talking about their challenges and the students' academic performance.

Claim the 2 groups first;

Clarify the random assignment of people.

(b) The differences between the two kinds of students are expected to affect the response to the treatments in some ways. Randomized block designs are to eliminate the effect.

The measure of [tex]$\angle CAB = 180^{\circ} - \angle ACD$[/tex]

What is the circumscribed circle?

A circumscribed circle is a circle that is drawn around a polygon such that the circle touches all the vertices of the polygon. In other words, the vertices of the polygon lie on the circumference of the circle.

Given that a circle is circumscribed around a quadrilateral ABCD, it is clear that the circle passes through all four vertices of the quadrilateral, A, B, C and, D. Also, the diameter of the circle is the diagonal AC of the quadrilateral.

The angles formed by the diameter with the tangents from the non-adjacent vertices are supplementary. That is [tex]$\angle CAB + \angle ACD = 180^{\circ}$[/tex]

Therefore, the measure of [tex]$\angle CAB = 180^{\circ} - \angle ACD$[/tex]

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Answer:

Step-by-step explanation:

Total Number of balls = 3+5+2=10

a)Probability both are red:  3/10 * 2/9 = 1/15

b)First ball blue, other green : 5/10 * 2/9 = 1/9

c) Both are different color : (3/10*7/9)+(5/10*5/9)+(2/10*8/9)

=21/90+25/90+16/90=62/90=31/45

d)Both are same color: (3/10*2/9)+(5/10*4/9)+(2/10*1/9)

=6/90+20/90+2/90 = 28/90 = 14/45

The data set that represented by the dot plot given is:

D. {145, 165, 165, 165, 165, 165, 175, 175, 175, 175, 175, 175, 185}

In a dot plot, each data point in a data set is represented by a dot.

To find out the data set that is represented in the dot plot, list out the data points as plotted on the dot plot given.

In the given dot plot that is showing the pulse rates of runners after finishing a marathon, it can be seen that,

There are 1 dot on 145, 5 dots on 165, 6 dots on 175 and 1 dot on 185.

Thus:

Therefore, the data set that represented by the dot plot given is:

D. {145, 165, 165, 165, 165, 165, 175, 175, 175, 175, 175, 175, 185}

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The expression [tex](4^{(2/5)})^{(1/4)}[/tex] can be rewritten as the radical expression [tex]4^{(1/1280)}.[/tex]

What is the rational exponent?

A rational exponent is an exponent that is a fraction. In mathematics, a number raised to a fractional power represents a root of the number. For example, the expression[tex]x^{(1/3)}[/tex] represents the cube root of x. Similarly, the expression [tex]x^{(2/5)}[/tex] represents the fifth root of x².

The given expression can be rewritten as a radical expression as follows:

[tex](4^{(2/5)})^{(1/4)} = 4^{(2/5) * (1/4)}[/tex]

Using the property of exponents that (a^b)^c = a^(b*c), we simplify the right side of the equation:

[tex]4^{((2/5) * (1/4))} = 4^{(2/5 * 1/256)} = 4^{(1/1280)}[/tex]

So, the expression [tex](4^{(2/5)})^{(1/4)}[/tex] can be rewritten as the radical expression [tex]4^{(1/1280)}.[/tex]

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The right answer is: Z requires that you know the population standard deviation, which can be erroneous.

The standard deviation calculates how much the data vary from the mean value. The mean of the following two numbers, for instance, is the same: 15, 15, 15, 14, 16 and 2, 7, 14, 22, 30. But the second is obviously more dispersed. It expresses the deviation of each observed value from the mean.

given

Both distributions must meet a number of requirements in order to be used. The prerequisites that must be met in order to execute a hypothesis test for employing a z-distribution are: The population has a normal distribution. We are aware of the population standard deviation.

The scope of the sample is broad.

The prerequisites that must be met in order to conduct a hypothesis test for employing a t-distribution are:

The population has a normal distribution. The chosen sample was chosen at random.

Use the t-distribution to conduct the test for the population mean in cases where the population standard deviation is unknown and the sample standard deviation must be computed.

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The required solution of the given simultaneous equation is x = 5 and y = -9.

Simultaneous linear equations are two- or three-variable linear equations that can be solved together to arrive at a common solution.

here,
Given a system of equations,
6x + 5y = -15 - - - - -(1)
-4x - y = -11 - - - - (2)

Multiply equation 1 by 1 and multiply equaiton 2 by 5 then add both the equation,
6x + 5y -20x -5y = -15 -55
-14x = -70
x = 5

Now,
-4(5) - y = -11
-20 - y = -11
-y = -11 +20
y = -9

Thus, the required solution of the given simultaneous equation is x = 5 and y = -9.

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P2, P3, P1 is a safe sequence according to the banker's algorithm.

The banker's algorithm gets its name from the fact that it determines whether or not a person should be granted a loan amount in order to assist the bank system in securely simulating resource allocation. In this part, we'll go through the Banker's Algorithm in depth. The Banker's Algorithm is primarily used in the banking system to avoid stalemate. It assists you in determining whether or not a loan will be granted. This procedure is used to assess the allocation for securely replicating the maximum amount available for all resources.

Here,

According to the banker's algorithm, the sequence P2, P3, P1 is secure.

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The measure of the missing angles are a = 65°, b = 115°, c = 115°, d = 65° and e = 65°

Angle geometry is a branch of mathematics that deals with angles and the properties of angles in geometric shapes such as measuring angles, classifying angles, and solving problems involving angles.

The measure of the missing angles are as follow:

a = 65° (corresponding angles are equal)

a + b = 180° (sum of angles of straight line is 180°)

65° + b = 180°

b = 180-65 = 115°

c = b  (corresponding angles are equal)

c = 115°

d = 180 - c (sum of angles of straight line is 180°)

d = 180 - 115 = 65°

e = d (corresponding angles are equal)

e = 65°

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Therefore , the required probability is therefore 1/151200, which is the answer to the probability problem.

The probability that a happening will happen or that the proposition is true is determined by a field of mathematics known as probability theory. A probability is a number between 0 and 1, where 1 represents certainty and 0 roughly represents the likelihood that an event will occur. A probability is a numerical expression of a certain event's likelihood or chance of happening. The percentages 0% - 100% and 0 to 1 can also be used to express probabilities. the percentage of times in an ideal collection of equally likely alternatives that an event occurs compared to all possible outcomes.

Here,

The six numbers can only be chosen in one way if the order chosen must match my phone number.

In 10P6 methods, six random digits from a possible total of ten can be chosen.

So the necessary probability is equal to 1/P. (10,6).

Alternative: Probability = 1/151200

The required probability is therefore 1/151200, which is the answer to the probability problem.

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Answer:

6

Step-by-step explanation:

you have to count the 2d faces

Answer:

6 faces

Step-by-step explanation:

DCGH

BCDA

BCGF

ADHE

BFEA

FGHE

Nolan and his children went into a grocery store and he bought $9 worth of apples and bananas, The three ways are explained below

Generally, One way to determine the number of apples, x, and the number of bananas, y, that Nolan bought is to use the equation:

x + y = a (total number of apples and bananas)

0.75x + 0.5y = 9 (total cost of apples and bananas)

Another way is to use the equation:

x = y + 2 (number of apples is 2 more than the number of bananas) 0.75x + 0.5y = 9 (total cost of apples and bananas)

A third way is to use the equation

y = x - 2 (number of bananas is 2 less than the number of apples)

0.75x + 0.5(x-2) = 9 (total cost of apples and bananas)

You can then solve for x and y using either of the above equations.

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Answer:

The image attached

Step-by-step explanation:

Put the equation into slope-intercept form

[tex]y=mx+b[/tex]

The equation should look like this

[tex]y=-\frac{1}{4}x-2[/tex]

Graph the equation with the slope being  [tex]-\frac{1}{4}[/tex] and [tex]-2[/tex] being the y-intercept.

Answer:

no abla espanol

Step-by-step explanation:

If Zack deposited $4,533 in an account earning 5.9% interest compounded annually. The amount he will have in 1 year is: $4,807.79.

Using this formula to find the compounded amount

A = P(1+r/n)^nt

Where:

A = Amount = ?

P = Principal = $4,533

R = Interest rate = 5.9% or 0.059

n = Number of months = 12

t = Time = 1 years

Let plug in the formula

A = $4,533 (1+ 0.059/12)^1×12

A = $4,533 (1+.004916)^12

A = $4,533 (1.004916)^12

A = $4,533 (1.0606)

A = $4,807.79

Therefore the amount he will have in 1 year is: $4,807.79.

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