Answer:
Radius = 1.5ft
Volume = 7.1 ft³
Step-by-step explanation:
Hello!
Part 1The length of the radius in feet can be found by dividing 18 inches by 12.
18/121.5The length of the radius in feet is 1.5ft
Part 2The formula for the volume of a cone is \(V =\frac13 \pi r^2h\)
Solve
\(V = \frac13 \pi (1.5)^2(3)\)\(V = 2.25\pi\)\(V = 7.0685834706 \approx 7.1\)The volume is approximately 7.1 ft³
Determine whether the statement is true or false. If false, give a counterexample.
The constant of proportionality in an equation can never be 0.
Answer:
Step-by-step explanation:
Tessellations
Determine whether the following regular polygon tessellates the plane.
Square
a. yes; measure of interior angle = 90
b. no; measure of interior angle = 90
c. yes; measure of interior angle = 45
d. no; measure of interior angle = 45
Please select the best answer from the choices provided
Answer:
A. Yes; measure of interior angle = 90
Step-by-step explanation:
I calculated it logically
what is 1/25 squared?
Answer: 0.0016
Step-by-step explanation: To find the fraction square root, first, find the square root of the numerator and then find the square root of denominator. After finding the square root values, simplify the fraction.
What is the length of the line segment below?
(107)
(3.1
answer the question for me
Answer: 1, 2, and 4.
Step-by-step explanation: Each must be wider than the angle than a "L" has.
Please look at the graphs in the photo. Thank you!
(a). The graph of y = -f(x) is shown in the image below.
(b). The graph of y = g(-x) is shown in the image below.
How to draw the graph of the transformed functions?By reflecting the parent absolute value function g(x) = |x + 2| - 4 over the x-axis, the transformed absolute value function can be written as follows;
y = -f(x)
y = -|x + 2| - 4
Part b.
In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation (formula):
y - y₁ = m(x - x₁)
Where:
x and y represent the data points.m represent the slope.First of all, we would determine the slope of this line;
Slope (m) = rise/run
Slope (m) = -2/4
Slope (m) = -1/2
At data point (0, 5) and a slope of -1/2, a linear equation for this line can be calculated by using the point-slope form as follows:
y - y₁ = m(x - x₁)
y - 5 = -1/2(x - 0)
g(x) = -x/2 + 5, -4 ≤ x ≤ 4.
y = g(-x)
y = x/2 + 5, -4 ≤ x ≤ 4.
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Shana bought 6.2 pounds of pecans and paid $56.00. About how much per pound did the pecans cost?
$5.00
$6.00
$8.00
$10.00
Answer:
D
Step-by-step explanation:
h=p√m2+n find the value of h when p = 3, n=20 , m=6
Answer:
We can substitute the given values of p, m, and n into the formula for h:
h = p√(m^2 + n)
h = 3√(6^2 + 20)
h = 3√(36 + 20)
h = 3√56
We can simplify this by factoring 56 into its prime factors:
h = 3√(2^3 × 7)
h = 3 × √(2^2 × 7) × √2
h = 3 × 2√7
Therefore, when p = 3, n = 20, and m = 6, the value of h is 6√7 or approximately 13.42.
The owner of a golf course wants to determine if his golf course is more difficult than the one his friend owns. He has 20 golfers play a round of 18 holes on his golf course and records their scores. Later that week, he has the same 20 golfers play a round of golf on his friend's course and records their scores again. The average difference in the scores (treated as the scores on his course - the scores on his friend's course) is 8.9 and the standard deviation of the differences are 11.986. Calculate a 99% confidence interval to estimate the average difference in scores between the two courses.
Answer:
(1.985, 15.815)
Step-by-step explanation:
Given that:
Sample size (n) = 20
Standard deviation (s) = 11.986
Mean (m) = 8.9
α = 99%
Using the relation :
Confidence Interval = Mean ± Error
Where ;
Error = Zcritical * standard deviation / sqrt(n)
Zcritical at 99% = 2.58
Hence,
Error = 2.58 * (11.986/sqrt(20))
Error = 2.58 * 2.6801510
Error = 6.91478958
Hence,
Lower boundary = 8.9 - 6.91478958 = 1.98521042
Upper boundary = 8.9 + 6.91478958 = 15.81478958
(1.985, 15.815)
Jamie needs to build a fence around his garden , as illustrated by polygon ABCDEF on the coordinate grid below.If each unit represents one yard, what is the total length of Jamie’s fence in yards ?
A.20 yards
B.23 yards
C.26 yards
D.45 yards
Answer:
C. 26 yards
Step-by-step explanation:
Total length of Jamie's fence = sum of all distances from one vertex of the polygon to another = AB + BC + CD + DE + EF + FA
Use the distance formula, \( d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} \), to find the distance between vertexes.
Distance between A(-5, 5) and B(0, 5)
Let,
\( A(-5, 5) = (x_1, y_1) \)
\( B(0, 5) = (x_2, y_2) \)
\( AB = \sqrt{(0 -(-5))^2 + (5 - 5)^2} \)
\( AB = \sqrt{(5)^2 + (0)^2} \)
\( AB = \sqrt{25 + 0} = \sqrt{25} \)
\( AB = 5 \)
Distance between B(0, 5) and C(4, 2)
Let,
\( B(0, 5) = (x_1, y_1) \)
\( C(4, 2) = (x_2, y_2) \)
\( BC = \sqrt{(4 - 0)^2 + (2 - 5)^2} \)
\( BC = \sqrt{(4)^2 + (-3)^2} \)
\( BC = \sqrt{16 + 9} = \sqrt{25} \)
\( BC = 5 \)
Distance between C(4, 2) and D(1, -2)
Let,
\( C(4, 2) = (x_1, y_1) \)
\( D(1, -2) = (x_2, y_2) \)
\( CD = \sqrt{(1 - 4)^2 + (-2 - 2)^2} \)
\( CD = \sqrt{(-3)^2 + (-4)^2} \)
\( CD = \sqrt{9 + 16} = \sqrt{25} \)
\( CD = 5 \)
Distance between D(1, -2) and E(-2, -2)
Let,
\( D(1, -2) = (x_1, y_1) \)
\( E(-2, -2) = (x_2, y_2) \)
\( DE = \sqrt{(-2 - 1)^2 + (-2 -(-2))^2} \)
\( DE = \sqrt{(-3)^2 + (0)^2} \)
\( DE = \sqrt{9 + 0} = \sqrt{9} \)
\( DE = 3 \)
Distance between E(-2, -2) and F(-5, 2)
Let,
\( E(-2, -2) = (x_1, y_1) \)
\( F(-5, 2) = (x_2, y_2) \)
\( EF = \sqrt{(-5 -(-2))^2 + (2 -(-2))^2} \)
\( EF = \sqrt{(-3)^2 + (4)^2} \)
\( EF = \sqrt{9 + 16} = \sqrt{25} \)
\( EF = 5 \)
Distance between A(-5, 5) and F(-5, 2)
Let,
\( A(-5, 5) = (x_1, y_1) \)
\( F(-5, 2) = (x_2, y_2) \)
\( FA = \sqrt{(-5 -(-5))^2 + (2 - 5)^2} \)
\( FA = \sqrt{(0)^2 + (-3)^2} \)
\( FA = \sqrt{0 + 9} = \sqrt{9} \)
\( FA = 3 \)
Total length of Jamie's fence in yards = 5 + 5 + 5 + 5 + 3 + 5 + 3 = 26 yards
Liam says the DOMAIN of the relationship shown here
is 0
Edit the inequality below to correct her mistake.
Submit
1(-2.0)
(1.0)
9 M
Answer:
Step-by-step explanation:
- 2 ≤ x ≤ 1
x ∈ [ - 2 , 1 ]
Answer:
How we will solve:
- 2 ≤ x ≤ 1
x ∈ [ - 2 , 1 ]
What is the sum of fist one hundred positive multiples of 3? I’ll mark you brainliest and give 100 points!
Answer:
The solution to the given problem can be obtained by sum formula of arithmetic progression.
In arithmetic progression difference of two consecutive terms is constant. The multiples of any whole number(in sequence) form an arithmetic progression.
The first multiple of 3 is 3 and the 100th multiple is 300.
3, 6, 9, 12,... 300. There are 100 terms.
The sum 3 + 6 + 9 + 12 + ... + 300 can be obtained by applying by sum formula for arithmetic progression.
Sum = (N/2)(First term + Last term)
where N is number of terms which in this case is 100.
First term = 3; Last term = 300.
Sum = (100/2)(3 + 300) = 50 x 303 = 15150.
Step-by-step explanation:
Brainliest please tysm
The expression cosine of pi over 2 times cosine of pi over 5 plus sine of pi over 2 times sine of pi over 5 can be rewritten as which of the following?
cosine of 7 times pi over 10
cosine of 3 times pi over 10
sine of 7 times pi over 10
sine of 3 times pi over 10
(The clear version of the question is in the picture below)
Answer:
(b) cos(3π/10)
Step-by-step explanation:
The given expression matches the trig identity form for the cosine of the difference of two angles:
cos(α-β) = cos(α)cos(β) +sin(α)sin(β)
__
To match the given expression exactly, we can choose ...
α = π/2
β = π/5
Then the difference is ...
α -β = π/2 -π/5 = (5/10)π -(2/10)π = 3π/10
The given expression can be shortened to ...
cos(3π/10)
__
Additional comment
Sometimes it can be difficult to remember when the signs in trig identities match, and when they differ. The fact that cosines of smaller angles have larger values can be a peg on which to hang that hat.
how to find compound rate from given values, 10 years after, and initial
The formula that calculates the compound rate from the given values is \(r = n(-1 + \sqrt[10n]{\frac{P + I}{P}})\)
How to determine the compound interest rate?The compound interest formula is:
\(I = P(1 + \frac rn)^{nt} - P\)
Where:
P represents the principal amountr represents the compound interest raten represents the number of times the interest is compoundedt represents the time in yearsI represents the interestWe start by adding P to both sides
\(P + I = P(1 + \frac rn)^{nt}\)
Divide through by P
\(\frac{P + I}{P} = (1 + \frac rn)^{nt}\)
Take the nt-th root of both sides
\(\sqrt[nt]{\frac{P + I}{P}} = 1 + \frac rn\)
Subtract 1 from both sides
\(-1 + \sqrt[nt]{\frac{P + I}{P}} = \frac rn\)
Multiply through by n
\(r = n(-1 + \sqrt[nt]{\frac{P + I}{P}})\)
In this case, t = 10
So, we have:
\(r = n(-1 + \sqrt[10n]{\frac{P + I}{P}})\)
Hence, the formula that calculates the compound rate is \(r = n(-1 + \sqrt[10n]{\frac{P + I}{P}})\)
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Find the measures of the sides of the sides of triangle JKL then classify it by its sides if J(-7, -7), K(-9 1), L(-1, -1)
\(~\hfill \stackrel{\textit{\large distance between 2 points}}{d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}}~\hfill~ \\\\[-0.35em] ~\dotfill\\\\ J(\stackrel{x_1}{-7}~,~\stackrel{y_1}{-7})\qquad K(\stackrel{x_2}{-9}~,~\stackrel{y_2}{1}) ~\hfill JK=\sqrt{(~~ -9- (-7)~~)^2 + (~~ 1- (-7)~~)^2} \\\\\\ ~\hfill JK=\sqrt{( -2)^2 + ( 8)^2} \implies \boxed{JK=\sqrt{ 68 }}\)
\(K(\stackrel{x_1}{-9}~,~\stackrel{y_1}{1})\qquad L(\stackrel{x_2}{-1}~,~\stackrel{y_2}{-1}) ~\hfill KL=\sqrt{(~~ -1- (-9)~~)^2 + (~~ -1- 1~~)^2} \\\\\\ ~\hfill KL=\sqrt{( 8)^2 + ( -2)^2} \implies \boxed{KL=\sqrt{ 68 }} \\\\\\ L(\stackrel{x_1}{-1}~,~\stackrel{y_1}{-1})\qquad J(\stackrel{x_2}{-7}~,~\stackrel{y_2}{-7}) ~\hfill LJ=\sqrt{(~~ -7- (-1)~~)^2 + (~~ -7- (-1)~~)^2} \\\\\\ ~\hfill LJ=\sqrt{( -6)^2 + (-6)^2} \implies \boxed{LJ=\sqrt{ 72 }}\)
well, let's notice, the triangle has two sides that are twins, JK and KL, that means is an isosceles, and isosceles triangle is a triangle with twin sides.
(2x - 8y) + (34x + 49y)
Answer:
the answer is 36 x + 41y
happy to help!
lim (cosec 2x - xcosec³x)
x approaches 0
The limit lim(x approaches 0) (cosec(2x) - x*cosec³(x)) is undefined.
We have,
To evaluate the limit of the expression as x approaches 0, we can simplify the expression first.
The expression is given as lim(x approaches 0) (cosec(2x) - x cosec³(x)).
Using trigonometric identities, we can rewrite cosec(2x) as 1/sin(2x) and cosec³(x) as 1/(sin(x))³.
Substituting these into the expression,
We get lim(x approaches 0) (1/sin(2x) - x (1/(sin(x))³)).
Now, let's evaluate the limit term by term:
lim(x approaches 0) (1/sin(2x)) = 1/sin(0) = 1/0 (which is undefined).
lim(x approaches 0) (x (1/(sin(x))³))
= 0 (1/(sin(0))³)
= 0 x 1/0 (which is also undefined).
Since both terms of the expression are undefined as x approaches 0, we cannot determine the limit of the expression.
Therefore,
The limit lim(x approaches 0) (cosec(2x) - x*cosec³(x)) is undefined.
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What term number will have 400 square in it?
Answer:
400^2 = 160 000
Step-by-step explanation:
The square of a number means the product of a number by itself, while the perfect square ... For example, the number 9 is a perfect square because it can be expressed as a product of ... A square football pitch has a perimeter of 400 meters.
Given f(x)=-5x+2, find f(6)
Suppose there is a simple index of two stocks, stock A and stock B. Stock A opens on Monday with 5000 shares at $2.75 per share. Stock B opens on Monday with 3000 shares at $4.30 per share. Stock A opens on Tuesday at $3.10 per share, and stock B opens on Tuesday at $4.85 per share. Both stocks have the same number of shares that they opened with on Monday. What is the rate of change of this simple index over 1 day?
The rate of change of the simple index over one day is approximately 12.78%.
To calculate the rate of change of the simple index over one day, we need to determine the percent change in the total value of the index between Monday's opening and Tuesday's opening.
On Monday, Stock A has 5000 shares at $2.75 per share, so its total value is:
Total value of Stock A on Monday = 5000 * $2.75 = $13,750
Similarly, on Monday, Stock B has 3000 shares at $4.30 per share, so its total value is:
Total value of Stock B on Monday = 3000 * $4.30 = $12,900
The total value of the index on Monday is the sum of the values of Stock A and Stock B:
Total value of the index on Monday = $13,750 + $12,900 = $26,650
On Tuesday, Stock A opens at $3.10 per share, and Stock B opens at $4.85 per share. Both stocks still have the same number of shares as on Monday.
The total value of Stock A on Tuesday is:
Total value of Stock A on Tuesday = 5000 * $3.10 = $15,500
The total value of Stock B on Tuesday is:
Total value of Stock B on Tuesday = 3000 * $4.85 = $14,550
The total value of the index on Tuesday is the sum of the values of Stock A and Stock B:
Total value of the index on Tuesday = $15,500 + $14,550 = $30,050
To calculate the percent change in the index, we use the formula:
Percent Change = ((New Value - Old Value) / Old Value) * 100
Percent Change = (($30,050 - $26,650) / $26,650) * 100 ≈ 12.78%
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how would i anwser this? help pls!
Answer:
Step-by-step explanation:
To get the y values all you need to do is substitute the x value in the equation y=-2/3x+7.
For example:
y=-2/3(-6)=7
-2/3x6=-4
-4+7=3
(-6,3)
You can double check your work by filling the x and y coordinates in the equation and when solved if it it true you know you were correct.
To get the x value, you need to fill in the y in the equation y=-2/3x+7
for example:
5=-2/3x+7
-2=-2/3x
3=x
(3,5)
y=-2/3x+7
y=-2/3(15)+7
y=-10+7
y=-3
(15,-3)
y=-2/3x+7
15=-2/3x+7
8=-2/3x
-12=x
(-12,15)
Graph and analyze the function f(x)= 1/x-2
Solve the equation.|8x + 4 = 1Select one:O A. 1531OО В. .O C.88D. (-31)O D.
We are given the following:
\(18x+4=1\)To solve the equation we will first subtract 4 from both sides:
\(\begin{gathered} 18x+4-4=1-4 \\ 18x=-3 \end{gathered}\)Now, we divide both sides by 18:
\(x=-\frac{3}{18}\)Now, we simplify the expression by dividing the numerator and denominator by 3:
\(x=-\frac{1}{6}\)Therefore, the value of "x" is -1/6.
a typical tip in a restaurant is 15% of the total bill. if the bull is $160, what would the typical tip be?
Answer:
$24
Step-by-step explanation:
Fist, you will multiply the percent, 15, and the total money amount, 160, which you would get 2,400. Then, divide 2,400 by 100, and there you will get the tip, $24. I hope this helps :)
in euclidean geometry any three points not on the same line can lie on how many planes?
Answer:
1 plane
Step-by-step explanation:
In Euclidean geometry, three non-collinear points will define exactly one plane.
__
Two points will define a line. That line can exist in an infinity of different planes.
A third point not on the line can only lie in exactly one plane with that line.
Three non-collinear points in Euclidean geometry can lie on one unique plane.
In Euclidean geometry, any three non-collinear points (points not lying on the same line) uniquely determine a plane.
This means that there is only one plane that contains all three of those points.
So, given three non-collinear points, you can find exactly one plane that passes through all of them.
Hence, if the three points not on the same line can lie on one plane.
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PLEASE HELP; WILL MARK BRAINLIEST. Teresa wants to buy two new tires for mountain bike. She has budgeted $120 for the tires, but after researching cost, knows she may end up spending within $25 of that amount.
Write an inequality that Teresa could use to the cost of each tire. Use the inequality to complete this statement.
Teresa may spend at least $ (47.50, 72.50, 95.00, 145.00) and at most $( 47.50, 72.50, 95.00, 145.00) for each new tire.
Answer:
see pic
Step-by-step explanation:
Solve: 5x - 8 = 12 + 8
Sienna buys a mystery pack of sparkly modeling clay. The pack has 5 colors, and there are 7 possible colors that are all equally likely. Sienna wants to know the probability that at least 2 of the colors will be the same. Which of the following is the best simulation? Explain your reason for your answer.
A. Roll a standard number cube 5 times for each trial. Let each number represent a different color. Run 50 trials and find the fraction of times that at least two of the same number are rolled.
B. Create a spinner with 5 equal sections. Label each section with a different color. Spin the spinner 7 times to see if it lands on the same color two or more times.
C. Create a spinner with 7 equal sections. Label each section with a different color. Spin the spinner 5 times for each trial. Run 50 trials and find the fraction of times the spinner lands on the same color two or more times.
D. Put 5 pieces of paper in a bag, each labeled with a different color. For each trial, randomly select and replace a paper 7 times. Run 50 trials and find the fraction of times that at least two of the same color appear.
The probability that at least 2 of the colors will be the same, the following is the best simulation is Option D Put 5 pieces of paper in a bag, each labeled with a different color. For each trial, randomly select and replace a paper 7 times. Run 50 trials and find the fraction of times that at least two of the same color appear.
Given, Sienna buys a mystery pack of sparkly modeling clay. The pack has 5 colors, and there are 7 possible colors that are all equally likely. We have to find the probability that at least 2 of the colors will be the same. There are 5 colors in the pack of clay, and 7 colors are possible in total.
So, the probability of picking any color at random is
P(picking a color) = 5/7 = 0.7143Let P(X = 2) be the probability that exactly 2 of the colors are the same.
Then, the probability that at least 2 of the colors are the same can be calculated by using the formula:
P(X ≥ 2) = 1 - P(X < 2).
The simulation method that can be used to find the probability of at least 2 of the colors will be the same in the mystery pack is option D.
Put 5 pieces of paper in a bag, each labeled with a different color. For each trial, randomly select and replace a paper 7 times. Run 50 trials and find the fraction of times that at least two of the same color appear.
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Use >,<, or = to compare -2.7
-2.2.
Answer:
- 2.7 < - 2.2
Step-by-step explanation:
A total of 388 tickets were sold for the school play they were either adult tickets or student tickets the number of student tickets sold was three times the number of adult tickets sold how many adult tickets were sold
Answer:
97
Step-by-step explanation:
Number of adult tickets = a.
Number of student tickets = s.
"A total of 388 tickets were sold"
a + s = 388
"the number of student tickets sold was three times the number of adult tickets sold"
s = 3a
a + s = 388
s = 3a
Substitute s in the first equation with 3a.
a + 3a = 388
4a = 388
a = 97
Answer: 97 tickets