Answer:
37.68
Step-by-step explanation:
The formula to solve for the circumference is C=πD. D would be diameter.
First you need to find the diameter. Diameter is the length from across the middle of the circle. You would do 2x6=12. The 6 is the radius. The radius always equals half of the diameter.
Now you do C=π12.
3.14x12=37.68=Circumference.
Different sizes of ribbon need to be cut to go around various shapes. All of the following sizes are in inches.
, √4, 2√3, √6
(a) Without using your calculator, approximate the decimal equivalent of each number to the nearest
tenth. You must show your work for the square roots to receive credit. You must use the method
shown in this unit.
(b) Order the ribbon sizes from least to greatest.
Answer:
Different sizes of ribbon need to be cut to go around various shapes. All of the following sizes are in inches.
, √4=√2²=2inches
2√3,=2×√3=2×1.735=3.5inches
√6=√2×√3=1.4×1.7=2.4inches
In order
2 inches,2.4inches and 3.5 inches.
Answer:
Step-by-step explanation:
Different sizes of ribbon need to be cut to go around various shapes. All of the following sizes are in inches.
, √4=√2²=2inches
2√3,=2×√3=2×1.735=3.5inches
√6=√2×√3=1.4×1.7=2.4inches
In order
2 inches,2.4inches and 3.5 inches.
Side AC corresponds to side
.
Angle BAC corresponds to angle
Answer:
???
Step-by-step explanation:
Where's the image?
what is 3 9/10 times -8/3
Answer:
-52 / 5
Step-by-step explanation:
3 9/10 * -8 / 3 = 39 / 10 * -8 / 3 = -52 / 5
Answer: -52 / 5
Step-by-step explanation: 3 9/10 * -8 / 3 = 39 / 10 * -8 / 3 = -52 / 5
While you are on vacation, you start keeping track of how far your family is from home and how long it has taken. After 3 hours you are 70 miles from home. After 8 hours you are 360 miles from home. A) Write an equation that relates distance from home (dd) and the amount of time (tt) it has been. B) What does the slope mean in this case?-The slope is the distance you have traveled-The slope is how fast you traveled on average-The slope is how long you were traveling-The slope is not defined in this case
An equation that relates distance from home (d) and the amount of time (t) it has been is y = 58x - 104.
The meaning of the slope mean in this case is: B. the slope is how fast you traveled on average.
What is the point-slope form?Mathematically, the point-slope form of a straight line can be calculated by using this mathematical expression:
y - y₁ = m(x - x₁) or y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)
Where:
m represents the slope.x and y are the points.At data points (3, 70), a linear equation of this line in slope-intercept form can be calculated by using the point-slope form as follows:
y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)
y - 70 = (360 - 70)/(8 - 3)(x - 3)
y - 70 = 58(x - 3)
y = 58x - 104
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Find the volume of the cylinder. Round your answer to the nearest tenth. Use 3.14 for . 7 in. 16 in. The volume of the cylinder is about in?.
Answer:
1406.7 in^3
Explanation:
The volume of a cylinder with radius r and height h is given by
\(V=\pi r^2h\)Now in our case h = 7 in, r = 16 /2 = 8 in, and in we use pi = 3.14, the above gives
\(V=3.14\cdot8^2\cdot7\)which gives
\(V=3.14\cdot64\cdot7\)\(V=1406.72\text{ in\textasciicircum{}3}\)Rounded to the nearest tenth this is
\(undefined\)
Answer:
The formula to calculate volume of a cylinder is given by the product of base area and its height. Volume of a cylinder = πr2h cubic units.
Step-by-step explanation:
Rick is buying a $115 tennis racquet from a sporting goods store. If the racquet is on sale for 35% off, how much will he pay in total?
Jude was curious if the automated machine at his restaurant was filling drinks with the proper amountfilled a sample of 20 drinks to test H_{0} : mu = 530mLver H: mu = 530mL where is the mean filling amount. The drinks in the sample contained a mean amount of 528 with a standard deviation of 4 mLThese results produced a test statistic of t = - 2. 236 and a Pvalue of approximately 0, 038 Assuming the conditions for inference were met, what is an appropriate conclusion at the alpha = 0. 10 significance level?
We have sufficient evidence to support the alternative hypothesis (H₁: μ ≠ 530 mL) at the α = 0.10 significance level.
To determine an appropriate conclusion at the significance level of α = 0.10, we compare the p-value (0.038) to the significance level.
Since the p-value (0.038) is less than the significance level (0.10), we can reject the null hypothesis (H₀: μ = 530 mL).
In simpler terms, there is evidence to suggest that the automated machine at the restaurant is not filling drinks with the proper amount.
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What is 24/240 as a decimal
Answer:
0.1
Step-by-step explanation:
Just take 24/24 which is 1 and move the decimal one place to the left because there is an extra 0 on the denominator
i will mark brainliest please help me out
Answer:
2 is 15x-2 , 3 is 64x ,4 is 3x-24 I hope it will help you please follow me
100 point please help. It's not 28 or 52
Answer:
The answer is 39 ...........
The number of DVD's sold at Fry's Electronics in a month was 920 and the number of DVD's sold decreased by 12 per month. The number of Blu-ray discs sold at Fry's Electronics in the same month was 502 and the number of Blu-ray discs sold increased by 26 per month. Write a system of equations to model th situation. If this trend continues, in how many months will the number of DVD's sold each month equal the number of Blu-ray discs sold each month? How many each disc is sold in that month?
Answer:
a) 11 months
b) 788 discs
Step-by-step explanation:
Let us represent number of months = x
For DVD's
The number of DVD's sold at Fry's Electronics in a month was 920 and the number of DVD's sold decreased by 12 per month.
Hence:
920 - 12x
For Blu ray
The number of Blu-ray discs sold at Fry's Electronics in the same month was 502 and the number of Blu-ray discs sold increased by 26 per month.
502 + 26x
Write a system of equations to model th situation.
a).If this trend continues, in how many months will the number of DVD's sold each month equal the number of Blu-ray discs sold each month?
To solve this:
DVD's = Blu-ray
920 - 12x = 502 + 26x
Collect like terms
920 - 502 = 26x + 12x
418 = 38x
x = 418/38
x = 11 months
b) How many each disc is sold in that month?
For DVD's
920 - 12x
x = 11
Hence:
920 - 12 × 11
= 920 - 132
= 788 discs
For Blu ray
= 502 + 26x
x = 11
Hence:
= 502 + 26x
= 502 + 26 × 11
= 788 discs
Therefore, 788 discs were sold in each month
NEED ANSWER ASAP + BRANLIEST
Answer:
x=1 -/+ (root 13)
Step-by-step explanation:
Factor the following quadratic:
\(3x^2+7x-6\)
Step-by-step explanation:
Use the systematic new AC Method to factor trinomials (Socratic Search)
y
=3x2+7x−6
=3(x + p)(x + q)
Converted trinomial:
y'
=x^2+7x−18
= (x + p')(x + q').
p' and q' have opposite signs.
Factor pairs of (ac = -18) --> (-2, 9). This sum is 7 = b. Then p' = -2 and q' = 9. Therefore,
p ='p/a
= -2/3
and
q ='q/a
=9/3
=3.
Factored form: y = 3(x - 2/3)(x + 3) = (3x - 2)(x + 3)
Please help me I have been doing this forever.
which of the following descriptions (pertaining to the graph below) is true?
On solving the provided question we can say that from the provided data in the graph we have, A"B"C" is a reflection then translation of ABC.
What is graphs?Mathematicians use graphs to logically convey facts or values using the a visual representations or charts. A graph point will typically reflect a relationship between two or more things. Nodes, or vertices, and edges make form a graph, a non-linear data structure. Glue together the nodes, often referred to as vertices. This graph has vertices V=1, 2, 3, 5, and edges E=1, 2, 1, 3, 2, 4, and (2.5), (3.5). (4.5). Statistical charts (bar charts, pie charts, line charts, etc.) graphical representations of exponential growth. a logarithmic graph in the shape of a triangle
from the provided data in the graph we have,
A"B"C" is a reflection then translation of ABC.
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A company rents out 15 food booths and 22 game booths at the county fair. The fee for a food booth is $175 plus $8 per day. The fee for a game booth is $80 plus $7 per day. The fair lasts for d days, and all the booths are rented for the entire time. Enter a simplified expression for the amount, in dollars, that the company is paid.
Answer: ($2100+96d) + ($2755+116d)
= $4855+212d
Solve for x
2x-5=3x+4
Answer:
x=-9
Step-by-step explanation:
move the variable to the left hand side and change its sign
combine like terms
and then solve like a two step equation
Answer:
x = -9
Step-by-step explanation:
move the terms: you need to move the variable to the left-hand side and change its sign so the new equation would be 2x-3x=4+5
combine like terms: add the x values together and add the integers together the new equation would be -x=9
You need x to be positive so divide both sides by -x to make the x positive and that will you give the answer of -9
ackrabbits are capable of reaching speeds up to 40 miles per hour. How fast is this in feet per second? (Round to the earest whole number.)
5,280 feet = 1 mile
Answer:
Therefore, ackrabbits can reach speeds of approximately 59 feet per second.
Step-by-step explanation:
First, we need to convert miles to feet:
40 miles/hour * 5,280 feet/mile = 211,200 feet/hour
Then, we need to convert hours to seconds:
1 hour = 60 minutes/hour * 60 seconds/minute = 3,600 seconds/hour
211,200 feet/hour / 3,600 seconds/hour = 58.67 feet/second
Rounding to the nearest whole number, we get:
59 feet/second
Therefore, ackrabbits can reach speeds of approximately 59 feet per second.
3(x+5x-5)
another give away
rate me...
Answer:
18x-15
Step-by-step explanation:
suppose we collect a random sample of 2000 people residing in the u.s. based on the probability distribution, which result would be surprising? responses
The number of subscribers with land-line phones for any year after 2000, taking into account the 27% annual decline rate.
According to the given information, land-line phones are decreasing at a rate of 27% each year since 2000. This means that each year, the number of subscribers with land-line phones is reduced to 73% (100% - 27%) of the previous year's value.
To create a formula that models this scenario, we start with the initial number of subscribers in the year 2000, which is given as 10,000. We can express this as y(0) = 10,000, where y(0) represents the number of subscribers in the starting year (t = 0).
Based on the decline rate of 27% per year, we can express the relationship between the number of subscribers in a given year (y) and the number of subscribers in the previous year (y-1) as follows:
y = 0.73 * y(t-1)
Here, 0.73 represents the probability of retaining a land-line phone subscription from one year to the next, given the 27% annual decline rate. Multiplying this probability by the number of subscribers in the previous year gives us the estimated number of subscribers in the current year.
By iterating this formula year after year, we can estimate the number of subscribers with land-line phones for any given year after 2000.
For example, let's calculate the number of subscribers in the year 2023, which is 23 years after 2000 (t = 23). Using the formula, we can substitute t = 23 into the equation:
y(23) = 0.73 * y(22)
To find y(22), we substitute t = 22 into the equation:
y(22) = 0.73 * y(21)
We continue this process until we reach the starting year, y(0) = 10,000.
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Complete Question:
With the growing popularity of cell phones, a local phone company had a sharp decline in the number of customers with land-line phones in their homes. Suppose land-line phones are decreasing at a rate of 27% each year since 2000. Assume that there were 10,000 subscribers with land-line phones in the year 2000.
For convenience let t = the number of years after 2000 and y = number of subscribers with land-line phones.
A formula that models this scenario is
the side of the cube is increasing at a constant rate of 0.2 centimeters per second. in terms of the surface area s, what is the rate of change of the volume of the cube, in cubic centimeters?
The rate of change of the volume of the cube is 0.4s cm³/s
What is rate of change?Rate of change is the rate at which a quantity increases or decreases with time.
How to find the rate of change of the volume of the cube, in cubic centimeters?Since the side of the cube is increasing at a constant rate of 0.2 centimeters per second. Its volume is given by V = L³ where L = length of side of cube.
Now, to find the rate of change of its volume, we differentiate the equation with respect to time, t.
So, V = L³
Differentiating, we have
dV/dt = dL³/dt
= dL³/dL × dL/dt
= 2L² × dL/dt
Since the rate of increase of the side of the cube is dL/dt = 0.2 cm/s, we have that
dV/dt = 2L² × dL/dt
= 2L² × 0.2 cm/s
= 0.4L² cm³/s
We know that the area of a cube s = L². So, substituting this into the equation, we have
dV/dt = 0.4L² cm³/s
= 0.4s cm³/s
So, the rate of change is 0.4s cm³/s
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What is the percent of increase from 5 to 8
Answer: 60%
Step-by-step explanation:
(5 × p) / 100 = 3
((5 × p) / 100) × 100 = 3 × 100
5p = 300
5p / 5 = 300 / 5
p = 60
Percent Increase = 60
The circulation of a newsletter decreased from 6500 to 3575. What was the percentage decrease in circulation?
Answer:
Step-by-step explanation:
6
Find the present value of the ordinary annuity. (Round your answer to the nearest cent.) $1200/semiannual period for 8 years at 11%/year compounded semiannually
Suppose payments were made at the end of each month into an ordinary annuity earning interest at the rate of 9%/year compounded monthly. If the future value of the annuity after 10 years is $50,000, what was the size of each payment? (Round your answer to the nearest cent.)
Find the periodic payment R required to amortize a loan of P dollars over t years with interest charged at the rate of r%/year compounded m times a year. (Round your answer to the nearest cent.) P = 18,000, r = 10, t = 6, m = 6
The present value of the ordinary annuity is 29569 and the periodic payment R is 669.
What is the present value?
In economics and finance, present value, also known as present discounted value, is the value of an expected income stream determined as of the date of valuation.
Here, we have
Given: Suppose payments were made at the end of each month into an ordinary annuity earning interest at the rate of 9%/year compounded monthly. If the future value of the annuity after 10 years is $50,000.
We have to find the present value of the ordinary annuity.
We use the ordinary annuity formula here
A = P{(1+r)ⁿ-1}/r
P = 1200
n = 16
r = 5.5% = 0.055
A = 1200{(1+0.055)¹⁶-1}/0.055
A = 29569
Future value of annuity = 50000
Interest rate per period = interest rate per annum/no.of payment per annum
= 9%/12 = 0.75%
Number of period = 120
Each deposit = FVA/{(1+r)ⁿ-1}/r
= 50000/{(1+0.75%)¹²⁰-1}/0.75%
= 258
Now, P = 18,000, r = 10, x = 6, n = 6
Periodic payment (R) = P(r/n)×(1+r/n)ⁿˣ/(1+r/n)ⁿˣ-1
= 18000(0.167)(1+0.167)³⁶/(1+0.167)³⁶-1
R = 669
Hence, the present value of the ordinary annuity is 29569 and the periodic payment R is 669.
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Evaluate the triple integral ∭E x^8 e^y dV where E is bounded by the parabolic cylinder z=16−y2z=16−y2 and the planes z=0,x=4, and x=−4
The value of the triple integral is (\(16^{11}\) / 11) [(\(e^{16}\) - 1) (\(cos^8\) φ) (2π)] where E is bounded by the parabolic cylinder z=16−y2z=16−y2 and the planes z=0,x=4, and x=−4.
To evaluate the triple integral ∭E \(x^8 e^y\) dV, where E is bounded by the parabolic cylinder z=16−y² and the planes z = 0,x = 4, and x = −4, we can use the cylindrical coordinate system. Here are the steps to solve the integral:
Write down the limits of integration for each variable:
For ρ, the radial distance from the z-axis, the limits are 0 to 4.
For φ, the angle in the xy-plane, the limits are 0 to 2π.
For z, the height, the limits are 0 to 16 - y² for the parabolic cylinder, and 0 to the plane z = 0.
Write the integral using cylindrical coordinates:
∭E \(x^8 e^y\) dV = ∫\(0^4\) ∫0²π ∫\(0^{(16-y^2)\) (\(\rho^9\) \(cos^8\) φ) (\(e^y\)) ρ dρ dφ dz
Evaluate the integral:
∫0²π ∫\(0^4\)(16-y²) (\(\rho^9\) \(cos^8\) φ) (\(e^y\)) ρ dρ dφ dz
= ∫\(0^4\) ∫0²π (\(cos^8\) φ) dφ ∫\(0^{(16-y^2)}\)(\(\rho^{10\) \(e^y\)) dρ dz
= ∫\(0^4\) ∫0²π (\(cos^8\) φ) [\((16-y^2)^{11}\) / 11 \(e^y\)] dy dφ
= ∫\(0^4\) ∫0²π (\(cos^8\) φ) [(\(16^{11}\) / 11) \(e^y\) - (11/11) y² (\(16^{10}\)) \(e^y\) + (55/11) \(y^4\) (\(16^9\)) \(e^y\) - ...] dφ
= ∫\(0^4\) (\(16^{11}\) / 11) \(e^y\) [(\(cos^8\) φ) (2π)] dy
= (\(16^{11}\) / 11) [(\(e^{16}\) - 1) (\(cos^8\) φ) (2π)]
Therefore, the value of the triple integral is (\(16^{11}\) / 11) [(\(e^{16}\) - 1) (\(cos^8\) φ) (2π)].
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Otto got a pair of hand gloves for 76.70 kr. how much will he get back from the shopkeeper?
Answer:
I'm assuming that Otto gave the shopkeeper a certain amount of money to pay for the gloves and is expecting some change back. To calculate how much change he will receive, we need to know the amount of money he gave to the shopkeeper.
Assuming Otto gave the shopkeeper 100 kr to pay for the gloves, we can calculate the change he will receive as follows:
Change = Amount paid - Cost of gloves
Change = 100 kr - 76.70 kr
Change = 23.30 kr
Therefore, Otto will receive 23.30 kr back from the shopkeeper. If he gave a different amount of money, you can simply subtract the cost of the gloves from that amount to calculate the change.
Solve for r. -13 = r/9 + 8
= − 1 8 9
source: trust me
Answer:
r = -189
Step-by-step explanation:
r/9 + 8 = -13
r/9 = -13 -8
r/9= -21
sum of two negative numbers = negative number
r = -21×9
r= - 189
Suppose that public opinion in a large city is 65 percent in favor of increasing taxes to support the public school system and 35 percent against such an increase. If a random sample of 500 people from this city are interviewed, what is the approximate probability that more than 200 of these people will be against increasing taxes
According the question The approximate probability that more than 200 out of 500 people will be against increasing taxes is approximately 0.0114 or 1.14%.
Given:
- Sample size (n) = 500
- Probability of being against increasing taxes (p) = 0.35
- Probability of being in favor of increasing taxes (q) = 1 - p = 0.65
Mean (μ) and standard deviation (σ) of the binomial distribution:
\(\[\mu = n \cdot p = 500 \cdot 0.35 = 175\]\)
\(\[\sigma = \sqrt{n \cdot p \cdot q} \approx \sqrt{500 \cdot 0.35 \cdot 0.65} \approx 10.95\]\)
To find the probability of more than 200 people being against increasing taxes, we can use the normal approximation to the binomial distribution. Let's calculate the Z-score:
\(\[Z = \frac{{X - \mu}}{{\sigma}} = \frac{{200 - 175}}{{10.95}} \approx 2.28\]\)
Using a standard normal distribution table or calculator, we find that the probability of \(Z > 2.28\) is approximately 0.0114.
Therefore, the approximate probability that more than 200 out of 500 people will be against increasing taxes is approximately 0.0114 or 1.14%.
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Find a surface parameterization of the portion of the tilted plane x-y + 2z = 2 that is inside the cylinder x² + y² = 9.
To find a surface parameterization of the portion of the tilted plane x - y + 2z = 2 that is inside the cylinder x² + y² = 9, we can use cylindrical coordinates.
Let's first parameterize the cylinder x² + y² = 9. We can use the parameterization:
x = 3cosθ
y = 3sinθ
z = z
where θ is the azimuthal angle and z is the height.
Now, let's substitute these parameterizations into the equation of the tilted plane x - y + 2z = 2 to find the parameterization for the portion inside the cylinder. 3cosθ - 3sinθ + 2z = 2 Rearranging the equation, we have:
z = (2 - 3cosθ + 3sinθ)/2
Therefore, the parameterization for the portion of the tilted plane inside the cylinder is:
x = 3cosθ
y = 3sinθ
z = (2 - 3cosθ + 3sinθ)/2
This parameterization describes the surface points that satisfy both the equation of the tilted plane and the equation of the cylinder, representing the portion of the tilted plane inside the cylinder.
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The table below shows the total cost of buying printer ink cartridges for both members and nonmembers of a shopping club.
Price of Ink at Shopping Club
Number of ink cartridges purchased
Total cost for
members
(with membership fee)
Total cost for nonmembers
0
$30
0
1
$40
$25
2
$50
$50
3
$60
$75
Which statement is supported by the table?
The relationship between the number of cartridges purchased and the total cost is proportional for nonmembers but not for members.
The relationship between the number of cartridges purchased and the total cost is proportional for members but not for nonmembers.
The relationship between the number of cartridges purchased and the total cost is proportional for neither members nor nonmembers.
The relationship between the number of cartridges purchased and the total cost is proportional for both members and nonmembers.
Answer:
The relationship between the number of cartridges purchased and the total cost is proportional for nonmembers but not for members.
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
The relationship between the number of cartridges purchased and the total cost is proportional for nonmembers but not for members.