Answer:
Since TS is a tangent to the circle PQRS, we know that the tangent line is perpendicular to the radius that intersects the point of tangency, which is S in this case.
Let O be the center of the circle. We can draw a radius from O to S, which intersects TS at point T, forming a right triangle OST.
Since /PR/-/PS/, we know that angles PSR and PRS are acute angles, which means that angle PSO is also an acute angle. This means that angle OST is complementary to angle PSO.
So, angle OST = 90 - angle PSO. But we know that angle PSO = angle PQR, since they are both subtended by the same arc PR. Therefore:
angle OST = 90 - angle PSO = 90 - angle PQR = 90 - 17 = 73 degrees.
Therefore, RST = angle TSR = 180 - angle OST = 180 - 73 = 107 degrees.
Step-by-step explanation:
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Feb 23, 12:41:00 PM If f(x)=3x^(5)+4, then what is the remainder when f(x) is divided by x-2 ?
The remainder when f(x)=3x^(5)+4 is divided by x-2 is 100.
The remainder when f(x)=3x^(5)+4 is divided by x-2 can be found using synthetic division.
Step 1: Set up the synthetic division by writing the coefficients of f(x) in a row and the value of x that makes the divisor equal to zero in a box to the left. In this case, the coefficients are 3, 0, 0, 0, 0, and 4 and the value of x is 2.
2|300004
Step 2: Bring down the first coefficient and multiply it by the value in the box. Write the result under the next coefficient and add them together. Repeat this process for all of the coefficients.
2|300004|612244896|36122448100
Step 3: The last number in the bottom row is the remainder. In this case, the remainder is 100.
Therefore, the remainder when f(x)=3x^(5)+4 is divided by x-2 is 100.
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PLS HELP ILL GIVE BRAINLIEST
Use the unit circletofind all the values of between 0 and 2 for which the given statement is true. (Use the exact radian values)
tan()=−√3
The values of Ф solved using a unit circle, between 0 and 2π, for which tanФ = - √3 is 2π/3 and 5π/3.
What is a circle?
A circle is a shape made up of all points in a plane that are at a specific distance from the centre point. In other words, it is the path a moving point in a plane takes to move around a curve while maintaining a constant distance from another point. The circle has an area and a perimeter and is a two-dimensional figure. The distance around a circle, or its circumference, is referred to as the perimeter of the circle. The region enclosed by a circle in a 2D plane is said to be its area.
The complete question is given below.
Given,
tan Ф = - √3
We have to find all values of Ф between 0 and 2π using a unit circle.
The unit circle for trigonometric calculations is given below.
from the unit circle,
tan 60 = √3
In quadrant 2,
tan ( 180 - 60) = - tan 60
tan 120 = - tan 160 = -√3
In quadrant 3, tangent values are positive.
In quadrant 4
tan (360 - 60) = - tan 60
tan 300 = -tan 60 = -√3
Also,
tan 120 = tan 2π/3
tan 300 = tan 5π/3
Therefore the values of Ф solved using a unit circle, between 0 and 2π, for which tanФ = - √3 is 2π/3 and 5π/3.
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6. Each of the bases of a right prism is a regular hexagon with one side, which measures 6 cm. What is the volume of the prism if the bases are 15 cm apart?
The volume of the right prism if bases are 15 cm apart is 405√3/2 cm^3.
The volume of a right prism is given by the formula V = Bh, where B is the area of the base and h is the height of the prism. In this case, the base is a regular hexagon with one side measuring 6 cm and the height of the prism is 15 cm.
To find the area of the base, we can use the formula for the area of a regular hexagon: [tex]A = (3√3/2)s^2[/tex], where s is the length of one side.
Plugging in the value of s = 6 cm, we get:
[tex]A = (3√3/2)(6 cm)^2 = 54√3/2 cm^2[/tex]
Now we can plug this value into the formula for the volume of the prism:
V = Bh = ([tex]54√3/2 cm^2)(15 cm) = 405√3/2 cm^3[/tex]
So the volume of the prism is 405√3/2 cm^3.
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Every purchase of a product or service is an exchange of value. A product or service is traded for money that is equal to the value of the product or service.
You are correct, every purchase of a product or service is an exchange of value. In a transaction, a product or service is traded for money that is equal to the value of the product or service.
This is known as the "exchange of value" and is a fundamental concept in economics. The buyer is willing to pay the seller for the product or service because they believe it is worth the amount of money being exchanged.
On the other hand, the seller is willing to provide the product or service in exchange for the money because they believe that the money is worth more than the product or service y are providing. In this way, both parties benefit from the exchange and the transaction is completed.
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Workers in an office of 60 staff were asked their favourite type of take-away.
The results are summarised in the table.
Take-away Frequency Angle
Pizza 3
a
Curry 10
b
Fish & chips 14
c
Kebab 19
d
Other 14
e
Work out the size of each angle to draw a pie chart.
Answer:
To find the angle for each category, we need to calculate the percentage of the total frequency for each category, and then multiply by 360 (the total number of degrees in a circle).
The total frequency is:
3 + 10 + 14 + 19 + 14 = 60
The percentage of the total frequency for each category is:
Pizza: 3/60 x 100% = 5%
Curry: 10/60 x 100% = 16.67%
Fish & chips: 14/60 x 100% = 23.33%
Kebab: 19/60 x 100% = 31.67%
Other: 14/60 x 100% = 23.33%
To find the angle for each category, we multiply the percentage by 360:
Pizza: 5% x 360 = 18 degrees
Curry: 16.67% x 360 = 60 degrees
Fish & chips: 23.33% x 360 = 84 degrees
Kebab: 31.67% x 360 = 114 degrees
Other: 23.33% x 360 = 84 degrees
So the table with the angles for each category is:
Take-away Frequency Angle
Pizza 3 18°
Curry 10 60°
Fish & chips 14 84°
Kebab 19 114°
Other 14 84°
(x+4)^2=15
solving by talking the square root
Answer:
x = -4 + √15 and x = -4 - √15.
Step-by-step explanation:
To solve for x in the equation (x + 4)^2 = 15 using square roots, we can take the square root of both sides of the equation, remembering to include both the positive and negative square root:
(x + 4)^2 = 15
Taking the square root of both sides:
±(x + 4) = √15
Now we can isolate x by subtracting 4 from both sides of the equation:
x + 4 = ±√15
x = -4 ±√15
Therefore, the solutions to the equation (x + 4)^2 = 15 are x = -4 + √15 and x = -4 - √15.
Work out the area of trapezium L.
If your answer is a decimal, give it to 1 d.p.
Step-by-step explanation:
Refer to pic............
Identify the roots of the quadratic function. What is the product when the roots are multiplied?
Check the picture below.
[tex]\begin{cases} x = -1 &\implies x +1=0\\ x = 3 &\implies x -3=0\\ \end{cases} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{original~polynomial}{a ( x +1 )( x -3 ) = \stackrel{0}{y}}\implies a(x^2-2x-3)=y\hspace{5em}\stackrel{\textit{\LARGE product}}{x^2-2x-3}[/tex]
now, that's not the equation of the parabola, unless the value of "a" is 1, but in this case, doesn't matter, we just need that product part.
elect all expressions that represent a correct solution to the equation 6(x + 4) = 20.
A. (20-4) +6
D.
B. (20-4)
C. 20-6-4
206-4
E.
(20-24)
F. (20-24) +6
The correct solution to the equation is (20 - 24)/6
How to determine the correct solutionFrom the question, we have the following parameters that can be used in our computation:
6(x + 4) = 20.
There are many different expressions that can represent a correct solution to an equation
These expression depends on the specific equation and context.
Open the bracketss
So, we have
6x + 24 = 20
Collect the like terms
6x = 20 - 24
Divide both sides by 6
So, we have the following representation
x = (20 - 24)/6
Hence, the correct expression in the equation solution is (20 - 24)/6
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Find the missing variable and indicated
angle measure.
X =
S
R
(5x – 2)° | 82°
T
m
O
WILL
MARK THE FIRST PERSON WHO ANSWERS BRAINIEST JUST PLEASE ANSWER. ALSO 24 POINTS:)
Answer:
The missing variable "x" = 20
And the Angle measure = 98°
Step-by-step explanation:
Explaination is given in the picture...
Thank you!
Answer:
the angles are 82 degrees and 98 degrees (5(20) -2), and the missing variable (x) is 20.
Step-by-step explanation:
Let us first look at SL. SL is a straight line and has an angle measure of 180 degrees. Angle RTL is 82 degrees and splits SL into 2. The angle right next to RTL is RTS, which is (5x-2) degrees. Since all of SL adds to 180 degrees, this means that RTL and RTS will add up to 180 degrees, since they are in the middle of it.
82 + 5x-2 = 180
80 +5x = 180
5x = 100
x = 20
Therefore, the angles are 82 degrees and 98 degrees (5(20) -2), and the missing variable (x) is 20.
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f) \( \sin ^{-1}\left(\sin \frac{5 \pi}{3}\right) \) 2. Find the exact value of \( \tan \left(\arccos \frac{2}{3}\right) \).
The exact value of \( \tan \left(\arccos \frac{2}{3}\right) \) is:
\( \tan \left(\arccos \frac{2}{3}\right) = \frac{\sin \left(\arccos \frac{2}{3}\right)}{\cos \left(\arccos \frac{2}{3}\right)} = \frac{\frac{\sqrt{5}}{3}}{\frac{2}{3}} = \frac{\sqrt{5}}{2} \).
1) The exact value of \( \sin ^{-1}\left(\sin \frac{5 \pi}{3}\right) \) is \( \frac{\pi}{3} \).
2) The exact value of \( \tan \left(\arccos \frac{2}{3}\right) \) is \( \frac{\sqrt{5}}{2} \).
Explanation:
1) We know that \( \sin \frac{5 \pi}{3} = \sin \left(\frac{5 \pi}{3} - 2\pi\right) = \sin \left(\frac{5 \pi}{3} - \frac{6 \pi}{3}\right) = \sin \left(-\frac{\pi}{3}\right) = -\sin \frac{\pi}{3} = -\frac{\sqrt{3}}{2} \).
So, we have:
\( \sin ^{-1}\left(\sin \frac{5 \pi}{3}\right) = \sin ^{-1}\left(-\frac{\sqrt{3}}{2}\right) = -\frac{\pi}{3} \).
But, since the range of the inverse sine function is \( \left[-\frac{\pi}{2}, \frac{\pi}{2}\right] \), we need to find an angle in this range that has the same sine value.
We know that \( \sin \frac{\pi}{3} = \frac{\sqrt{3}}{2} \), so \( \sin \left(\pi - \frac{\pi}{3}\right) = \sin \frac{2\pi}{3} = \frac{\sqrt{3}}{2} \).
Therefore, the exact value of \( \sin ^{-1}\left(\sin \frac{5 \pi}{3}\right) \) is \( \frac{\pi}{3} \).
2) We know that \( \cos \left(\arccos \frac{2}{3}\right) = \frac{2}{3} \), and we need to find the value of \( \tan \left(\arccos \frac{2}{3}\right) \).
Using the Pythagorean identity, we have:
\( \sin ^2 \left(\arccos \frac{2}{3}\right) = 1 - \cos ^2 \left(\arccos \frac{2}{3}\right) = 1 - \left(\frac{2}{3}\right)^2 = 1 - \frac{4}{9} = \frac{5}{9} \).
So, \( \sin \left(\arccos \frac{2}{3}\right) = \frac{\sqrt{5}}{3} \).
Therefore, the exact value of \( \tan \left(\arccos \frac{2}{3}\right) \) is:
\( \tan \left(\arccos \frac{2}{3}\right) = \frac{\sin \left(\arccos \frac{2}{3}\right)}{\cos \left(\arccos \frac{2}{3}\right)} = \frac{\frac{\sqrt{5}}{3}}{\frac{2}{3}} = \frac{\sqrt{5}}{2} \).
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Solve the following matrix equation for a, b, c, and d. |a-b b+c | = |13 1| |3d+c 2a-4d| |9 12|
To solve the matrix equation for a, b, c, and d, we can equate the corresponding elements of the matrices on both sides of the equation.
So, we get the following system of equations:
a - b = 13 (1)
b + c = 1 (2)
3d + c = 9 (3)
2a - 4d = 12 (4)
From equation (1), we can express b in terms of a:
b = a - 13 (5)
Substituting equation (5) into equation (2), we get:
a - 13 + c = 1
a + c = 14 (6)
From equation (3), we can express c in terms of d:
c = 9 - 3d (7)
Substituting equation (7) into equation (6), we get:
a + 9 - 3d = 14
a - 3d = 5 (8)
Substituting equation (5) into equation (4), we get:
2a - 4d = 12
a - 2d = 6 (9)
Subtracting equation (9) from equation (8), we get:
d = -1
Substituting d = -1 into equation (7), we get:
c = 9 - 3(-1) = 12
Substituting d = -1 and c = 12 into equation (6), we get:
a + 12 = 14
a = 2
Substituting a = 2 and d = -1 into equation (5), we get:
b = 2 - 13 = -11
So, the solution is a = 2, b = -11, c = 12, and d = -1.
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can u please help me
Let R be a commutative ring, and let A be an ideal of R. The set is called a radical of A N(A) = {x ∈ R : xn ∈ A for some integer n}.
Prove that
a) N(A) is an ideal of R.
b) N(N(A)) = N(A).
N(A) is an ideal of R and N(N(A)) = N(A).
a) To prove that N(A) is an ideal of R, we need to show that it is closed under addition and multiplication by elements of R.
Let x, y ∈ N(A) and r ∈ R. Then there exist integers m and n such that xm ∈ A and yn ∈ A. By the commutative property of R, we have:
(x + y)n = xn + xny + yxn + yn ∈ A
(rx)n = rnxn ∈ A
Therefore, x + y ∈ N(A) and rx ∈ N(A), so N(A) is an ideal of R.
b) To prove that N(N(A)) = N(A), we need to show that N(N(A)) ⊆ N(A) and N(A) ⊆ N(N(A)).
Let x ∈ N(N(A)). Then there exists an integer n such that xn ∈ N(A). This means that there exists an integer m such that (xn)m ∈ A. By the associative property of R, we have:
(xn)m = xnm ∈ A
Therefore, x ∈ N(A), so N(N(A)) ⊆ N(A).
Let x ∈ N(A). Then there exists an integer n such that xn ∈ A. Since A ⊆ N(A), we have xn ∈ N(A). Therefore, x ∈ N(N(A)), so N(A) ⊆ N(N(A)).
Hence, N(N(A)) = N(A).
Conclusion: N(A) is an ideal of R and N(N(A)) = N(A).
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HELPPPP MEEEE I NEED TO TURN IN THIS LATE MATH HOMEWORK
Answer:
enter the step by step answer u did and then add the number the match and enter them in the box and u shall be done
Step-by-step explanation:
Does someone mind helping me with this question? Thank you!
Answer:
543.07214553
Round to the Nearest Whole Number
543
Knowledge Check Solve for u. -(2)/(7)u=-14 Simplify your answer as much as possible. u
The solution to the equation -(2)/(7)u=-14 is u = 49.
Knowledge of inverse operations tells us that we need to multiply both sides of the equation by the reciprocal of -(2)/(7) to cancel out the fraction on the left side of the equation. The reciprocal of -(2)/(7) is -(7)/(2).
Multiply both sides of the equation by -(7)/(2):
u = -(7)/(2) * -(2)/(7)u = -(7)/(2) * -14
Simplify the left side of the equation:
u = 49
Solve for u:
u = 49
Therefore, the solution to the equation -(2)/(7)u=-14 is u = 49.
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PLEASE HELP
Bob climbed down a ladder from his roof, while Roy climbed up another ladder next to Bob’s ladder. Each ladder had 30 rungs. Their friend Jill recorded the following information about Bob and Roy:
Bob went down two rungs every second.
Roy went up one rung every second.
At some point, Bob and Roy were at the same height. Which rung were they on?
If Rοy is οn the 10th rung, then Bοb is οn the 30 - 2t = 30 - 20 = 10th rung as weII, since they wiII be at the same height at this pοint. Therefοre, the answer is that Bοb and Rοy were οn the 10th rung when they were at the same height.
Let's start by figuring οut hοw fast each persοn is mοving in terms οf rungs per secοnd. We knοw that Bοb is gοing dοwn twο rungs every secοnd, sο his speed is -2 rungs/secοnd (the negative sign indicates that he is gοing dοwn). SimiIarIy, we knοw that Rοy is gοing up οne rung every secοnd, sο his speed is +1 rung/secοnd.
We want tο knοw at which rung Bοb and Rοy wiII be at the same height, sο Iet's caII that rung "R". We can set up an equatiοn tο describe this situatiοn:
30 - 2t = R (Bοb's pοsitiοn at time t)
R = rt (Rοy's pοsitiοn at time t)
Here, t is the time that has eIapsed since Bοb and Rοy started cIimbing. We knοw that they started at the bοttοm οf their respective Iadders, sο we can assume that t is the same fοr bοth οf them.
Nοw we can sοIve fοr R by setting the twο expressiοns equaI tο each οther:
30 - 2t = rt
We can sοIve fοr t by rearranging the equatiοn:
t = 30/(r+2)
Substituting this vaIue οf t back intο either οf the οriginaI equatiοns wiII give us the vaIue οf R:
R = rt = r * 30 / (r+2)
Tο find the vaIue οf r that makes R an integer (since we're Iοοking fοr the rung they're οn), we can try different vaIues οf r untiI we find οne that wοrks. Starting with r=1:
R = 1 * 30 / (1+2) = 10
This means that if Rοy is οn the 10th rung, then Bοb is οn the 30 - 2t = 30 - 20 = 10th rung as weII, since they wiII be at the same height at this pοint. Therefοre, the answer is that Bοb and Rοy were οn the 10th rung when they were at the same height.
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Part 1
A gender-selection technique is designed to increase the likelihood that a baby will be a girl. In the results of the gender-selection technique, 950 births consisted of 483 baby girls and 467 baby boys. In analyzing these results, assume that boys and girls are equally likely.
a. Find the probability of getting exactly 483 girls in 950 births.
b. Find the probability of getting 483 or more girls in 950 births. If boys and girls are equally likely, is 483 girls in 950 births unusually high?
c. Which probability is relevant for trying to determine whether the technique is effective: the result from part (a) or the result from part (b)?
d. Based on the results, does it appear that the gender-selection technique is effective?
In analysis the results are a) 0.017, b) 0.1515, c) punctual probability, and d) Outcome is improbable.
Probability is a way to gauge how likely something is to happen. Several things are difficult to forecast with absolute confidence. With it, we can only make predictions about the likelihood of an event happening, or how likely it is.
a)Sd(Y) = (226) = 15.033 .
Let's call Z the approximation, we conclude:
X = [tex]\frac{Z-452}{15.033}[/tex]
With reference, that would be 0.017.
b) P(Y ≥ 467) is just 0.1515, a low number. This means that it 467girls from 904 births is a pretty high number.
c) Calculating a punctual probability will likely provide a low figure due to a large number of potential outcomes.
d) The results appear to be relatively successful. We thus estimate that getting a comparable or better outcome is improbable.
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At a religious gathering there were 560 persons present . For every 4 adults , there were 3 children . 4/5 of the children were boys . How many more boys were there than girls??
Therefore , the solution of the given problem of unitary method comes out to be the religious gathering thus had 144 more males than girls.
Describe the unitary method.To finish the job using the unitary method, multiply the measures taken from this microsecond variable section by two. In a nutshell, when a wanted thing is present, the characterized by a group but also colour groups are both eliminated from the expression unit technique. For instance, 40 changeable-price pencils would cost Inr ($1.01). It's conceivable that one nation will have complete control over the strategy used to achieve this. Almost all living things have a unique trait.
Here,
Find out how many people and kids are attending the event first.
There were 3 kids for every 4 people. We can thus divide the overall population by the sum of the ratios as follows:
=> 4 + 3 = 7
Adult population
=> (4/7) x 560 = 320
Children's number
=> (3/7) x 560 = 240
Now that we know that the majority of the kids were males,
Number of boys:
=> (4/5) * 240 = 192.
By deducting the number of male children from the total number of children, we can calculate the number of girl children:
48 is the number of girls out of 240 total kids.
There are 192 male children and 48 girl children, which equals 144.
The religious gathering thus had 144 more males than girls.
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Which graph represents the function f(x) = cos (4x)
The period of the given function f(x) = Cos 4x is π/2
What is a function?A function is a relation from a set of inputs to a set of possible outputs, where each input is related to exactly one output.
Given is a graph of the function f(x) = Cos 4x, we need to identify the period of this function.
We know that, the function of the form of :-
y = A Cos(Bx), The A and B coefficients can tell us the amplitude and period respectively.
So, comparing this equation to the given function equation, we get,
A = 1, Bx = 4x
The period of cosine is 2π, Therefore, the period would be 2π/B
Therefore, the period of the given function is 2π/4
= π/2
Hence, the period of the given function f(x) = Cos 4x is π/2
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O is the center of the regular decagon below. Find its perimeter. Round to the nearest tenth if necessary. 6 O
By answering the above question, we may infer that So the perimeter of the regular decagon is approximately 38.2 units (rounded to the nearest tenth).
what is decagon?In geometry, a decagon is either a decagon or not. There are 144° of inner angles total in a simple decagon. A regular decagon that self-intersects is known as a decagram. A polygon with 10 sides, ten internal angles, and ten vertices is called a decagon. Geometry may contain the form known as a decagon. It also has ten horns and ten horns. A dodecagon is a polygon with twelve sides. Some unusual types of dodecagons are shown in the photographs above. Particularly, a regular dodecagon has angles that are equally placed around a circle and sides that are of the same length.
Each interior angle of a regular decagon measures:
[tex]$$(n-2)\times180^\circ/n = (10-2)\times180^\circ/10 = 144^\circ$$\\$$\cos(72^\circ) = \frac{x}{2y}$$[/tex]
Solving for x, we get:
[tex]$$x = 2y\cos(72^\circ)$$[/tex]
We can use the fact that[tex]$\cos(72^\circ) = \frac{1+\sqrt{5}}{4}$[/tex](which can be derived using the golden ratio) to get:
[tex]$$x = 2y\cos(72^\circ) = 2y\cdot\frac{1+\sqrt{5}}{4} = \frac{y}{2}(1+\sqrt{5})$$\\$$R = \frac{x}{2\sin(180^\circ/10)} = \frac{x}{2\sin(36^\circ)}$$\\[/tex]
We can use this formula to find[tex]$y$:[/tex]
[tex]$$y = R = \frac{x}{2\sin(36^\circ)} = \frac{x}{2\sin(\frac{1}{2}\times72^\circ)} = \frac{x}{2\cos(72^\circ/2)}$$[/tex]
We can use the half-angle identity [tex]$\cos(\theta/2) = \sqrt{\frac{1+\cos(\theta)}{2}}$ to simplify this expression:[/tex]
[tex]$$y = \frac{x}{2\cos(72^\circ/2)} = \frac{x}{2\sqrt{\frac{1+\cos(72^\circ)}{2}}} = \frac{x}{2\sqrt{\frac{1+\frac{1+\sqrt{5}}{4}}{2}}} = \frac{x}{2\sqrt{\frac{3+\sqrt{5}}{4}}} = \frac{x}{\sqrt{3+\sqrt{5}}}$$[/tex]
Putting it all together, we have:
[tex]$$\text{Perimeter} = 10x = 10\cdot\frac{y}{2}(1+\sqrt{5}) = 5\sqrt{10+2\sqrt{5}}\approx 38.2$$[/tex]
So the perimeter of the regular decagon is approximately 38.2 units (rounded to the nearest tenth).
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Indicate the transformations to f(x) = √x
a) y = 1/2 √ −3(x + 1) + 4
Indicate the transformations to f(x) = x^3
a) y = (2(x − 1))^3 − 5
a) y = 1/2 √ −3(x + 1) + 4
- The function is multiplied by 1/2, indicating a vertical compression by a factor of 1/2.
- The function is multiplied by -3 inside the square root, indicating a horizontal compression by a factor of 1/3 and a reflection across the y-axis.
- The function is shifted 1 unit to the left, indicated by the (x + 1) inside the square root.
- The function is shifted 4 units up, indicated by the + 4 outside the square root.
a) y = (2(x − 1))^3 − 5
- The function is multiplied by 2 inside the cube, indicating a horizontal compression by a factor of 1/2.
- The function is shifted 1 unit to the right, indicated by the (x - 1) inside the cube.
- The function is shifted 5 units down, indicated by the - 5 outside the cube.
The transformations to f(x) = √x are as follows:
a) y = 1/2 √ −3(x + 1) + 4
- The function is multiplied by 1/2, indicating a vertical compression by a factor of 1/2.
- The function is multiplied by -3 inside the square root, indicating a horizontal compression by a factor of 1/3 and a reflection across the y-axis.
- The function is shifted 1 unit to the left, indicated by the (x + 1) inside the square root.
- The function is shifted 4 units up, indicated by the + 4 outside the square root.
The transformations to f(x) = x^3 are as follows:
a) y = (2(x − 1))^3 − 5
- The function is multiplied by 2 inside the cube, indicating a horizontal compression by a factor of 1/2.
- The function is shifted 1 unit to the right, indicated by the (x - 1) inside the cube.
- The function is shifted 5 units down, indicated by the - 5 outside the cube.
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In one country, 7 out of 1,000 infants die before their first birthday. Convert this figure to a percentage. Is your answer greater than or less than 1%?
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Answer: 0.7% < 1%
Step-by-step explanation:
Percent is out of 100 so...
7/1000 = 0.7/100 = 0.7%
0.7% < 1% so the answer is less than 1%
Hope this helped!
Write the first five terms of a sequence, don’t make your sequence too simple. Write both an explicit formula and a recursive formula for a general term in the sequence.
Answer:
One example of a sequence is the Fibonacci sequence, which starts with 0 and 1, and each subsequent term is the sum of the two preceding terms:
0, 1, 1, 2, 3, ...
To write the explicit formula for the nth term of the Fibonacci sequence, we can use Binet's formula:
Fn = [((1 + sqrt(5))/2)^n - ((1 - sqrt(5))/2)^n]/sqrt(5)
where Fn is the nth term in the sequence.
To write the recursive formula for the Fibonacci sequence, we can use the definition:
F0 = 0, F1 = 1, and Fn = Fn-1 + Fn-2 for n ≥ 2.
So the first five terms of the Fibonacci sequence are:
F0 = 0
F1 = 1
F2 = 1 (0 + 1)
F3 = 2 (1 + 1)
F4 = 3 (1 + 2)
F5 = 5 (2 + 3)
The explicit formula for the nth term in the sequence is:
Fn = [((1 + sqrt(5))/2)^n - ((1 - sqrt(5))/2)^n]/sqrt(5)
The recursive formula for the nth term in the sequence is:
Fn = Fn-1 + Fn-2 for n ≥ 2, with F0 = 0 and F1 = 1.
Find EG if FG = 8, EH = x - 1, and EG = x + 1
If FG = 8, EH = x - 1: EG = x + 1
How to find EG?In order to find EG, we need to use the fact that the sum of the lengths of the segments EF and FG is equal to the length of segment EG. That is,
EF + FG = EG
We are given that FG = 8, and we know that EH + HF = EF. Therefore,
EF = EH + HF
Putting this all together, we get:
EF + FG = EG
(EH + HF) + 8 = x + 1
EH + HF = x - 7
But we also know that EH = x - 1, so we can substitute that in:
x - 1 + HF = x - 7
Simplifying this equation, we get:
HF = -6
Now we can use the fact that the sum of the lengths of the segments EH and HF is equal to the length of segment EF. That is,
EH + HF = EF
(x - 1) + (-6) = EF
x - 7 = EF
Finally, we can substitute this value for EF into our original equation to find EG:
EF + FG = EG
(x - 7) + 8 = EG
x + 1 = EG
Therefore, EG = x + 1.
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Compound X has a solubility of 20 g in 100 g of water at 20°C. What is the minimum amount of water needed to dissolve 50 g of compound X? 250 g 100 g 500 g 200 g
Answer:
250 g of water
Pamela is 6 years younger than juri. The sum of their ages is 94
Answer:
Step-by-step explanation:
pamela: j - 6 years = juri's age.
juri: j + 6 years.
sum of pamela and juri = 94 years.
j +(j - 6) = 94
2j - 6 = 94
2j = 94 - 6
2j = 88
j = 44
juri age: 44years and pamela age: 44years - 6years = 38years.
whats the area of a rectangle with 25 ft and width 30 ft
[tex]\huge\begin{array}{ccc}A=75ft^2\end{array}[/tex]
The area of a rectangle.
The formula:
[tex]\huge\boxed{A=l\cdot w}[/tex]
[tex]l[/tex] - length of a rectangle
[tex]w[/tex] - width of a rectangle
SOLUTION:[tex]l=25ft,\ w=30ft[/tex]
substitute:
[tex]A=25\cdot30=750ft^2[/tex]
A market analyst wants to know if the new website he designed is showing increased page views per visit. A customer is randomly sent to one of two different websites, offering the same products, but with different designs. Assume that the data come from a distribution that is Normally distributed. The data is shown in the table to the right. Complete parts a through c below Website1 n, = 70 y1 = 7.5 s1 = 4.9 Website 2 n2 = 90 y2 7.4 S2 5.4 a) Test the null hypothesis at α= 0.05 using the pooled t-test. Assume that the new website is website 1 and the old website is website 2 Choose the null and alternative hypotheses below Calculate the test statistic. Let the difference of the sample means be y1 -y2 t- (Round to three decimal places as needed.) Calculate the P-value P-value- (Round to four decimal places as needed.)
a) The null and alternative hypotheses are:
H0: µ1 = µ2
Ha: µ1 ≠ µ2
b) The test statistic is:
t = 0.117
c) The P-value is:
P-value = 0.9072
To test the null hypothesis at α= 0.05 using the pooled t-test, we need to follow these steps:
Step 1: Choose the null and alternative hypotheses. The null hypothesis is that the mean page views per visit for website 1 are equal to the mean page views per visit for website 2. The alternative hypothesis is that the mean page views per visit for website 1 are not equal to the mean page views per visit for website 2.
H0: µ1 = µ2
Ha: µ1 ≠ µ2
Step 2: Calculate the test statistic. The test statistic for the pooled t-test is given by:
t = (y1 - y2) / (sp * √(1/n1 + 1/n2))
where sp is the pooled standard deviation, given by:
sp = √(((n1 - 1) * s1^2 + (n2 - 1) * s2^2) / (n1 + n2 - 2))
sp = √(((70 - 1) * 4.9^2 + (90 - 1) * 5.4^2) / (70 + 90 - 2)) = 5.178
t = (7.5 - 7.4) / (5.178 * √(1/70 + 1/90)) = 0.117
Step 3: Calculate the P-value. The P-value is the probability of observing a test statistic as extreme or more extreme than the one we calculated, assuming the null hypothesis is true. We can use a t-distribution table or a calculator to find the P-value. The degrees of freedom for the pooled t-test are n1 + n2 - 2 = 70 + 90 - 2 = 158.
Using a t-distribution table or a calculator, we find that the P-value is 0.9072.
Step 4: Since the P-value is greater than the significance level of 0.05, we fail to reject the null hypothesis. There is not enough evidence to suggest that the mean page views per visit for website 1 are different from the mean page views per visit for website 2.
Thus:
a) The null and alternative hypotheses are:
H0: µ1 = µ2
Ha: µ1 ≠ µ2
b) The test statistic t = 0.117
c) The P-value = 0.9072
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