Answer:
C≈40.21cm
Step-by-step explanation:
Answer:
40.192
Step-by-step explanation:
the radius is half of the diameter so the diameter is 12.8 now 12.8 times pi / 3.14
16% of the town's population are above the age of 65. If there are 320 residents are over the age of 65, approximately what is the town's total population?
Answer:
the total population is 2,000
Step-by-step explanation:
so if we double 16 we get 32% and we have 640 residents then we ad 8% which gets us to an even number of 40% and therefor we add half the 16% to our 640 to get 800 and this is sounding complicated but stick with me. now that we have 40% of the population is 800 people then 80% is 1,600 then we add half or 20% and get 100% is 2,000 people
Please Help! SCAMMERS WILL BE REPORTED! Use Cramer's Rule to solve the following system
-2x- 6y = -26
5x + 2y = 13
Answer:
x=1,y=4
Step-by-step explanation:
x=1,y=4
50 pts. Compute the requested operating costs as indicated, based on the preceding table and the following information.
Car: six-cylinder compact
Year driven: second
Miles driven: 14,000
The insurance cost for second year is $
.
If the answer is right, (I will check it,) then I will post a question and give you more points. just get on my prophile, and keep reloading on my "questions' page. 100 extra points.
DONT FLAG. I NEED HELP WITH THIS PROBLEM AND I"M TRYING TO GET A REAL ANSWER.
From the table , the insurance cost for the second year based on the prescription given is : $1329
Using the prescription table, the six cylinder compact , second year car with a mileage of 14000 falls in the mid table category with the 13000 mileage label .
The operating cost in insurance for the second year is therefore $1329.
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Find all values of $x$ that solves this system.
\begin{align*}
x^2 - 9y^2 &= 72\\
x + 3y &= 9
\end{align*}
All the values of x that solve the given system of equations are as follows:
x = 17/2.
What is a system of equations?A system of equations is when multiple variables are related by equations, which are solved to find the values of each variable. Usually, these relations are linear, but they may also be quadratic, as is the case in this problem.
For this problem, we are given two equations, as follows:
x² - 9y² = 72.x + 3y = 9.From the second equation, we have that:
x = 9 - 3y.
Replacing in the first, we have that:
(9 - 3y)² - 9y² = 72.
9y² - 54y + 81 = 72.
54y = 9.
y = 9/54
y = 1/6, as 9/9 = 1, 54/9 = 6.
Hence the solution for x of the system of equations is found by replacement, as follows:
x = 9 - 3y = 9 - 3/6 = 9 - 1/2 = 18/2 - 1/2 = 17/2.
The solution is x = 17/2.
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3/x=2
How do you solve this without get a loop
Answer:
x= 3/2
Step-by-step explanation:
3/x=2
Multiply x both sides so,
3 =2x
Divide 2 to get the value of x so,
x= 3/2
Use the distributive property to remove the parentheses. Simplify your answer as much as possible.
1/2(4w-5)
please help i need answers asap
Answer:
2w - 2 1/2
Step-by-step explanation:
you need to multiply the faction by each one of the numbers. multiplying them by 1/2 is going to be the same was dividing them by 2
4w (1/2) - 5 (1/2)
2w - 2 1/2
hope this helps!
A 2-column table with 4 rows. Column 1 is labeled x with entries 1, 2, 3, 4. Column 2 is labeled y with entries 11, 22, 33, 44. What relationship between the quantities is shown in the table? The relationship between quantities is +10. The relationship between quantities is ×11. The relationship between quantities is – 30. The relationship between quantities is + 20. A 2-column table with 4 rows. Column 1 is labeled x with entries 1, 2, 3, 4. Column 2 is labeled y with entries 11, 22, 33, 44. What relationship between the quantities is shown in the table? The relationship between quantities is +10. The relationship between quantities is ×11. The relationship between quantities is – 30. The relationship between quantities is + 20. A 2-column table with 4 rows. Column 1 is labeled x with entries 1, 2, 3, 4. Column 2 is labeled y with entries 11, 22, 33, 44. What relationship between the quantities is shown in the table? The relationship between quantities is +10. The relationship between quantities is ×11. The relationship between quantities is – 30. The relationship between quantities is + 20. A 2-column table with 4 rows. Column 1 is labeled x with entries 1, 2, 3, 4. Column 2 is labeled y with entries 11, 22, 33, 44. What relationship between the quantities is shown in the table? The relationship between quantities is +10. The relationship between quantities is ×11. The relationship between quantities is – 30. The relationship between quantities is + 20.
The relationship between the quantities shown in the table is +10. The values in column 2 (y) are obtained by adding 10 to the corresponding values in column 1 (x).
How to explain the relationshipIn the given table, the values in column 1 (labeled "x") are 1, 2, 3, and 4. The values in column 2 (labeled "y") are 11, 22, 33, and 44.
To determine the relationship between the quantities in the table, we can compare the values in column 2 (y) with the corresponding values in column 1 (x).
If we subtract each value in column 1 from the corresponding value in column 2, we find that:
11 - 1 = 10
22 - 2 = 20
33 - 3 = 30
44 - 4 = 40
By observing these results, we can see that the difference between each value in column 2 and its corresponding value in column 1 is always 10.
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How long would it take for a ball dropped from the top of a 81ft building to hit the ground round your answer to two decimal places
Answer:
Set the height equal to (1/2)gt^2 and solve for t.
h = (1/2)gt^2
t = (2h/g)^1/2
Plug in the numbers and get your answer in seconds:
h = 81 ft
g = 32 ft/s^2
Step-by-step explanation:
An employee makes $10.51 per hour but is getting a 3% increase. What is his new wage per hour to the nearest cent? What percentage of the original wage is his new wage?
The employee's new wage per hour is $10.83. The percentage increase of the original wage to his new wage is 3%.
What is a percentage increase?A percent increase means how much a percentage has gone up over time. To find this number, one would need to find the difference between the original value and the final value, subtracting to find the exact total of the decrease. The formula for percent increase equals to "Increase / original number (value) x 100".
Given data:
First, we find 3% of $10.51 to get new wage per hour
= 0.03$ * $10.51
= $0.32
Then, we add this increase to $10.51.
= $10.51 + $0.32
= $10.83
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Please help me!! can't figure it out for some reason
A census was conducted at a school. All of the students were asked how many cars their family owns. The results are below.
3. What is the probability that a randomly chosen student has at least 3 cars? Answer
4. What is the expected number of cars? Answer
5. What is the standard deviation? Answer
Answer: how did u get a pfp
Step-by-step explanation:
A jar has marble ms in these three colors only: 7 green, 10 blue, 3 red.
What is the probability of randomly choosing a green marble, after choosing (and keeping) a red marble?
Answer with a percentage rounded to the nearest tenth.
The probability of randomly choosing a green marble after you have chosen red is 4.4%
What is probability?
Simply put, probability measures how probable something is to occur. We can discuss the probabilities of various outcomes, or how likely they are, whenever we are unsure of how an event will turn out. Statistics is the study of events subject to probability.
Given
A jar has 20 marbles: 3 green, 12 blue, 5 red.
Probability;
In probability theory, an event is a set of outcomes of an experiment or a subset of the sample space.
The total number of marbles = 20
The number of green marbles= 3
The number of blue marbles = 12
The number of red marbles = 5
The probability of choosing a red marble = Number of red marbles / Total number of marbles
= 5/20
The probability of choosing a green marble is = Number of green marbles / New total number of marbles
= 3/19
Therefore,
The probability of randomly choosing a green marble after you have chosen red is;
= 5/20 * 3/19
= 3/68
percentage = 3/68 * 100 = 4.4%
Hence, the probability of randomly choosing a green marble after you have chosen red is 4.4%
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Consider the following figure.
(Note that the figure is not drawn to scale.)
20°
L
47°
89°
Order the side lengths IK, KL, IJ, IL, and LJ from least to greatest.
The side lengths from least to greatest as follows:
IK < KL < IJ < IL < LJ
To order the side lengths IK, KL, IJ, IL, and LJ from least to greatest, we can analyze the given figure.
Since the figure is not drawn to scale, we cannot determine the exact lengths of the sides. However, we can make some observations based on the given angles.
Let's analyze the angles:
Angle L: Since angle L is marked as 47°, we know that side KL is the shortest side, as it is opposite to the smallest angle in a triangle.
Angle I: Since angle I is marked as 20°, we can infer that side IJ is longer than side IK, as it is opposite to a larger angle.
Angle LJ: Since angle LJ is marked as 89°, we can conclude that side LJ is the longest side, as it is opposite to the largest angle in the triangle.
Based on these observations, we can order the side lengths from least to greatest as follows:
IK < KL < IJ < IL < LJ
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What is the measure of each interior angle of the regular polygon pictured below? If necessary, round to the nearest tenth.
\(\underset{in~degrees}{\textit{sum of all interior angles}}\\\\ n\theta = 180(n-2) ~~ \begin{cases} n=\stackrel{number~of}{sides}\\ \theta = \stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ n=5 \end{cases}\implies 5\theta =180(5-2) \\\\\\ 5\theta =180(3)\implies 5\theta =540\implies \theta =\cfrac{540}{5}\implies \theta =108\)
why can't I see all the answer? I paid and still getting paritial
Answer:
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A boat is heading towards a lighthouse who’s beacon-light is 132 feet above the water. the boat’s crew Measure the angle of elevation to the beacon, 5 degrees. what is the ships horizontal distance from the lighthouse and the shore? round your answer to the nearest tenth of a foot
The right angle triangle representing this scenario is shown below
A represents the beacon light
AB is the ship'e horizontal distance from the lighthouse
Taking angle A which is the angle of elevation as the reference angle,
opposite side = BC = 132
adjacent side = AB
To find AB, we would apply the tangent trigonomeric ratio which is expressed as
Tan # = opposite side/adjacent side
Therefore,
Tan 5 = 132/AB
ABtan5 = 132
AB = 132/tan5
AB = 1508.8
The ship's horizontal distance from the lighthouse and the shore is 1508.8 feet
How influe One statistic used to measure a country's wealth is the gross domestic product (GDP). A higher GDP indicates higher wealth. A researcher compared the GDP per person for 12 countries with the life expectancy of that country. The data for the 12.countries are shown in the scatterplot. The value ofr for the scatterplot is 0.608.
ANSWER:
1st option: This data point weakens the correlation.
STEP-BY-STEP EXPLANATION:
According to what can be seen on the graph, Jordan's point is an outlier. This is because it is outside the trend that the graph shows.
Therefore, what this point does is weaken the correlation.
Therefore, the correct answer is:
1st option: This data point weakens the correlation.
write the expression as a product of the to factors: 6m+ 8n+ 4
Answer:
No answer do u today
Step-by-step explanation:
Lol
H hi ha job un hi is ihnihniuniunihn como te quiero
An observer at Point A makes measurements that show that the peak of Mount Wayne lies in a direction of 50º from Point A, with an angle of elevation of 18º. The peak of Mount Rolly lies in a direction of 340º from Point A, with an angle of elevation of 23º. The peak of Mount Maggie lies in a direction of 190º from Point A, at an angle of elevation of 13º. The distance to the peak of Mount Wayne is 2980 m. The distance to the peak of Mount Rolly is 3450 m. The distance to the peak of Mount Maggie is 5130 m.
Based on the angles and distances to the peaks, the horizontal distance from point A to each mountain peak is:
Mount Wayne = 2,834.15mMount Maggie = 4,998.52 mMount Rolly = 3,375.75 mWhat is the distance from point A to the peak of Mount Wayne?This can be found as:
= Distance to peak x Cos(point of elevation)
= 2,980 x Cos18°
= 2,834.15 m
What is the distance from point A to the peak of Mount Maggie?= Distance to peak x Cos13°
= 5,130 x Cos13°
= 4,998.52m
What is the distance from point A to the peak of Mount Rolly?= 3,450 x Cos23°
= 3,375.74 m
Question is:
Determine the horizontal distance from point A to each mountain peak.
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Claudia’s skis are 150 centimeters long. How many millimeters is this?
Answer:
1500
Step-by-step explanation:
50 Points! Multiple choice algebra question. Photo attached. Thank you!
Using half angle formula, the exact value of cos (105°) is √(2 - √3) / 2.
Given angle is 105°.
We have to find the cosine value of this angle.
The method to be used is half angle formula.
Half angle formula in terms of cosine function is,
cos (x/2) = ± √[(1 + cos x) / 2]
So we can write 105° as the half of certain value.
105 = 210 / 2
So,
cos (210/2) = ± √[(1 + cos 210) / 2]
Now,
cos (210°) = cos (180° + 30°)
= - cos (30°)
= - √3 / 2
So,
cos (210/2) = ± √[(1 + (-√3/2)) / 2]
= √[(2 - √3) / 4]
= √(2 - √3) / 2
Hence the correct option is D.
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What is the answer to 7k² +9k+1=0
The solutions for k are: k = (-9 + √53) / 14, k = (-9 - √53) / 14. These are the two possible values of k that satisfy the given equation.
What is quadratic equation?
it's a second-degree quadratic equation which is an algebraic equation in x. Ax2 + bx + c = 0, where a and b are the coefficients, x is the variable, and c is the constant term, is the quadratic equation in its standard form.
The given equation is a quadratic equation in the variable k, and it can be solved using the quadratic formula.
The quadratic formula states that for any quadratic equation in the form of ax² + bx + c = 0, the solutions for x are given by:
x = (-b ± √(b² - 4ac)) / (2a)
Applying this formula to the given equation 7k² + 9k + 1 = 0, we can determine the solutions for k.
In this case, a = 7, b = 9, and c = 1. Plugging these values into the quadratic formula, we get:
k = (-9 ± √(9² - 4 * 7 * 1)) / (2 * 7)
Simplifying further:
k = (-9 ± √(81 - 28)) / 14
k = (-9 ± √53) / 14
So the solutions for k are:
k = (-9 + √53) / 14
k = (-9 - √53) / 14
These are the two possible values of k that satisfy the given equation. Note that √53 represents the square root of 53, which is an irrational number.
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Use the magnitudes (Richter scale) of the earthquakes listed in the data set below. Find the mean and median of this data set. Is the magnitude of an earthquake measuring 7.0 on the Richter scale an outlier (data value that is very far away from the others) when considered in the context of the sample data given in this data set? Explain.
Answer:
\(\bar x = 1.4896\)
\(Median = 1.525\)
7 is an outlier
Step-by-step explanation:
Given
See comment for dataset
Solving (a): The mean
The mean is calculated as:
\(\bar x = \frac{\sum x}{n}\)
So, we have:
\(\bar x = \frac{2.53 +1.33 +0.64 +2.55 +0.67 +0.57 +............+2.03 +1.78}{50}\)
\(\bar x = \frac{74.48}{50}\)
\(\bar x = 1.4896\)
Solving (b): The median
First, we sort the data:
\(0.01, 0.01, 0.08, 0.14, 0.24, 0.35, 0.57, 0.64, 0.65, 0.67,\)
\(0.69, 0.74, 0.81, 0.82, 0.92, 0.99, 1.01, 1.04, 1.15, 1.16, 1.33,\)
\(1.41, 1.45, 1.48, 1.52, 1.53, 1.58, 1.61, 1.62, 1.73, 1.77, 1.78, 1.84,\)
\(1.98, 2.01, 2.02, 2.03, 2.06, 2.06, 2.31, 2.41, 2.53, 2.55, 2.59,\)
\(2.66, 2.74, 2.74, 2.77, 2.77, 2.91\)
The median position is:
\(Median = \frac{n + 1}{2}\)
\(Median = \frac{50 + 1}{2}\)
\(Median = \frac{51}{2}\)
\(Median = 25.5th\)
This means that the median is the average of the 25th and the 26th item.
So:
\(Median = \frac{1.52+1.53}{2}\)
\(Median = \frac{3.05}{2}\)
\(Median = 1.525\)
Solving (c): Is 7 an outlier
Yes; 7 is an outlier.
Because the range of the dataset (0.01 to 2.92) is far from 7.
PLEASE ANSWER THIS IS URGENT
Convert the following to slope-intercept form (y=mx+b) 2x - (2y + 4) = 2(4x + 1)
Answer:
i think its 48 but dont trust me im just doing this for points hope you get a good grade on it
Step-by-step explanation:
( Exercises 11.8- Complete the following: 1. Find the distance between the line and the point. (a) 3x + 4y = 24; (-10, 1) (c) x + 2y = 12; (4, -6) (e) x + 3y = 0; (1, -7)
Answer : Distance between the equation and the point is 7.07
We are given the equation of a line to be
x + 3y = 0
Firstly, we need to find the value of x and y from the equation
To find x, isolate y by making it zero
x + 3(0) = 0
x + 0 = 0
x = 0 - 0
x = 0
To find y, make x = 0
0 + 3y = 0
3y = 0
Divide both sides by 3
3y/3 = 0/3
y = 0
Therefore, x = 0, and y = 0
(0 , 0) and (1, -7)
From the given points
x1 = 0, y1 = 0, x2 = 1, y2 = -7
\(\begin{gathered} \text{Distance = }\sqrt[]{(x1-x2)^2+(y1-y2)^2} \\ \text{Distance = }\sqrt[]{(0-1)^2+(0-(-7)\rbrack^2} \\ \text{Distance = }\sqrt[]{(-1)^2+(0+7)^2} \\ \text{Distance = }\sqrt[]{(-1)^2+(7)^2} \\ \text{Distance = }\sqrt[]{1\text{ + 49}} \\ \text{Distance = }\sqrt[]{50} \\ \text{Distance = 7.07 units} \end{gathered}\)PLEASE HELP ME
Angles PTQ and STR are vertical angles and congruent.
Circle T is shown. Line segments T P, T Q, T R, and T S are radii. Lines are drawn to connect points P and Q and points S and R to create secants. Angles P T Q and R T S are congruent.
Which arcs are congruent?
Arc S P and Arc S R
Arc P Q and Arc S R
Arc P Q and Arc Q R
Arc S P and Arc P R
Answer:
PQ AND SR on ED
Step-by-step explanation:
Based on vertical angle theorem, arcs that are congruent is option (B) arc P Q and arc S R is the correct answer.
What is vertical angle theorem?The vertical angles theorem is a theorem that states that when two lines intersect and form vertically opposite angles, each pair of vertical angles has the same angle measures. A pair of vertically opposite angles are always equal to each other.
For the given situation,
Angles PTQ and STR are vertical angles and congruent.
Line segments T P, T Q, T R, and T S are radii.
So, T P = T Q = T R = T S.
The two sides T P = T Q and T R = T S and \(\angle PTQ = \angle RTS\),
then by SAS similarity theorem two triangles,
Δ PTQ ≅ Δ STR.
When two triangles are congruent, then the corresponding arc are also congruent.
The congruent central angles intercept congruent arcs PQ and SR.
Hence we can conclude that based on vertical angle theorem, arcs that are congruent is option (B) arc P Q and arc S R is the correct answer.
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A leaf hangs from a branch 12 feet in the air. It falls to the ground at a rate of 0.25 feet per second. Which graph could represent the leaf’s height in feet as a function of time, in seconds, after leaving the branch? A coordinate plane showing Falling Leaf, Time in seconds on the x-axis and Height in feet on the y-axis. A line is passing through (4, 20 ), (6, 14), and (12, 0). A coordinate plane showing Falling Leaf, Time in seconds on the x-axis and Height in feet on the y-axis. A line is passing through (0, 12), (8, 8), and (20, 2). A coordinate plane showing Falling Leaf, Time in seconds on the x-axis and Height in feet on the y-axis. A line is passing through (0, 16), (6, 8), and (12, 0).
Answer:
the last graph is correct
Based on the information given, it should be noted that the correct option is the last graph.
Solving the coordinate plane.From the complete information, the leaf starts at 12 feet above the ground. This eliminates the first and third graph, leaving the second and last. The leaf falls at 0.25 ft/sec. This means it would take 4 seconds for the leaf to fall 1 foot.
Also, on the second graph, when we go over to 4 seconds and then up, the line is at 10 feet; this means it fell 2 feet in 4 seconds. On the last graph, it is going over to 4 seconds and then up, the line is at 11 feet; this means it fell 1 foot in 4 seconds. This is therefore correct.
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he polynomial of degree 5, P ( x ) has leading coefficient 1, has roots of multiplicity 2 at x = 3 and x = 0 , and a root of multiplicity 1 at x = − 1 Find a possible formula for P ( x ) .
f]
The possible formula for the polynomial in discuss whose roots are described as; having roots of multiplicity 2 at x = 3 and x = 0 , and a root of multiplicity 1 at x = − 1 is; P(x) = x^5 -5x⁴-6x³+18x².
What is the polynomial in discuss whose roots and leading coefficient are as discussed?The polynomial which is as described in the task content whose roots are as given can be written in its factorised form as follows;
P(x) = (x-3) (x-3) (x) (x) (x+1)
The expanded form is therefore;
P(x) = x^5 - 5x⁴- 6x³+ 18x².
Therefore, the polynomial having roots of multiplicity 2 at x = 3 and x = 0 , and a root of multiplicity 1 at x = − 1 is P(x) = x^5 - 5x⁴- 6x³+ 18x².
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4. What is the length of b?
b=16
b=24
b=12
b=15
Answer:
b=12
Step-by-step explanation:
A local electronics store, CDs were on sale. Some were priced at $14.00 and some at $12.00. Sabrina bought 9 CDs and spent a Total of $114.00 how many $12.00 CDs did she purchase
Answer:
Sabrina purchased 6 $ 12 CDs.
Step-by-step explanation:
Suppose that the random variable X represents the length of a punched part in centimeters. Let Y be the length of the part in millimeters. If and , what are the mean and variance of Y
Complete Question
Suppose that the random variable X represents the length of a punched part in
centimeters. Let Y be the length of the part in millimeters. If E(X) = 5 and V(X) = 0.25,
what are the mean and variance of Y?
Answer:
The mean
\(E(Y) =50 mm\)
The variance
\(V(Y) = 25 mm\)
Step-by-step explanation:
From the question we are told that
Length in cm is X
Length in mm is Y
Generally 10 mm = 1 cm
So
\(Y = 10 X\)
Hence the expected mean of Y is
\(E(Y) = E (10 X)\)
=> \(E(Y) = 10 E(X)\)
From the question \(E(X) = 5\)
So
\(E(Y) = 10 * 5\)
=> \(E(Y) =50 mm\)
Gnerally the variance of X is
\(V(X) = E [X^2] -E[X]^2\)
From the question we are told that \(V(X) = 0.25\)
=> \(0.25 = E [X^2] -E[X]^2\)
Gnerally the variance of Y
\(V(Y) = E [Y^2] -E[Y]^2\)
=> \(V(Y) = E [10X^2] -E[X]^2\)
=> \(V(Y) = 10^2[ E [X^2] -E[X]^2]\)
=> \(V(Y) = 10^2* V(X)\)
=> \(V(Y) = 10^2* 0.25\)
=> \(V(Y) = 25 mm\)