Answer:
The inequality that could be used to model this situation is 15.95+0.10m<40. Also, the number of minutes has to be less than 240.5 for Mr. Kordemsky's phone bill for the month to be less than $40.
Step-by-step explanation:
From the information provided, the inequality would indicate that the phone bill for the month that is equal to the result of the fixed fee plus the price per minute for the number of minutes has to be less than $40, which can be expressed as:
15.95+0.10m<40
Now, you can solve for m:
15.95+0.10m<40
0.10m<40-15.95
0.10m<24.05
m<24.05/0.10
m<240.5
According to this, the answer is that the inequality that could be used to model this situation is 15.95+0.10m<40. Also, the number of minutes has to be less than 240.5 for Mr. Kordemsky's phone bill for the month to be less than $40.
help help help help help help༎ຶ‿༎ຶ
Answer:
Step-by-step explanation:
START
=> Alternate Interior Angles (Slanted Downwards Right)
=> Vertical Angles (Up)
=> Linear Pair (Right)
=> Corresponding Angles (Down)
=> Alternate Exterior Angles (Down)
=> Interior Angles on the Same Side (Left)
=> Alternate Interior Angles (Left)
=> Corresponding Angles (Slanted Downwards Right)
=> Exterior Angles on the Same Side (Right)
FINISH
The two basic kinds of rulers are______
Use the following graph to solve the equation 3n + 7 = 52
Answer:
\(3n + 7 = 52 \\ 3n = 52 - 7 \\ 3n = 45 \\ n = \frac{45}{3} \\ n = 15\)
Graph is not inserted.
What fraction is equivalent to 5%?
A: 50/100
B: 1/20
C: 5/10
D: 1/5
Answer:
1/20
Step-by-step explanation:
5%
Percent means out of 100
5/100
Divide top and bottom by 5
1/20
Answer:
HI THERE,THE ANSWER IS
B
Step-by-step explanation:
\(\frac{1}{20} \\\) X 100%=5%
3] Question 5 Consider the vector field F(x, y, z) = y cos (xy) i + x cos (xy)j – sin zk. (i) Calculate the curl of the vector field F. State whether F is conservative. (ii) Let C be the curve joining the origin (0,1,-1) to the point with coordinates (1, 2V2,2) defined by the following parametric curve r(t) = n* i + t}j + tcos atk, 15t52. Calculate the scalar line integral of the vector field. F. dr. F.dr.
Given vector field, F(x, y, z) = y cos (xy) i + x cos (xy) j – sin z k To calculate the curl of F, we need to take the curl of each component and subtract as follows,∇ × F = ( ∂Q/∂y - ∂P/∂z ) i + ( ∂P/∂z - ∂R/∂x ) j + ( ∂R/∂x - ∂Q/∂y ) k...where P = y cos(xy), Q = x cos(xy), R = -sin(z)
Now we calculate the partial derivatives as follows,
∂P/∂z = 0, ∂Q/∂y = cos(xy) - xy sin(xy), ∂R/∂x = 0...
and,
∂P/∂y = cos(xy) - xy sin(xy), ∂Q/∂z = 0, ∂R/∂y = 0
Therefore,
∇ × F = (cos(xy) - xy sin(xy)) i - sin(z)j
The curl of F is given by:
(cos(xy) - xy sin(xy)) i - sin(z)j.
To state whether F is conservative, we need to determine if it is a conservative field or not. This means that the curl of F should be zero for it to be conservative. The curl of F is not equal to zero. Hence, the vector field F is not conservative. Let C be the curve joining the origin (0,1,-1) to the point with coordinates (1, 2V2,2) defined by the following parametric curve:
r(t) = n* i + t}j + tcos atk, 15t52.
The curve C is defined as follows,r(t) = ni + tj + tk cos(at), 0 ≤ t ≤ 1Given vector field, F(x, y, z) = y cos(xy) i + x cos(xy)j – sin zk Using the curve parameterization, we get the line integral as follows,∫CF.dr = ∫10 F(r(t)).r'(t)dt...where r'(t) is the derivative of r(t) with respect to t
= ∫10 [(t cos(at))(cos(n t)) i + (n cos(nt))(cos(nt)) j + (-sin(tk cos(at)))(a sin(at)) k] . [i + j + a tk sin(at)] dt
= ∫10 [(t cos(at))(cos(n t)) + (n cos(nt))(cos(nt)) + (-a t sin(at) cos(tk))(a sin(at))] dt
= ∫10 [(t cos(at))(cos(n t)) + (n cos(nt))(cos(nt)) - a^2 (t/2) (sin(2at))] dt
= [sin(at) sin(nt) - (a/2) t^2 cos(2at)]0^1
= sin(a) sin(n) - (a/2) cos(2a)
The vector field F(x, y, z) = y cos(xy) i + x cos(xy)j – sin zk is given. Firstly, we need to calculate the curl of F. This involves taking the curl of each component of F and subtracting. After calculating the partial derivatives of each component, we get the curl of F as (cos(xy) - xy sin(xy)) i - sin(z)j. Next, we need to determine whether F is conservative. A conservative field has a curl equal to zero. As the curl of F is not equal to zero, it is not a conservative field. In the second part of the problem, we have to calculate the scalar line integral of the vector field F. dr along the curve C joining the origin to the point with coordinates (1, 2V2, 2). We use the curve parameterization to calculate the line integral. After simplifying the expression, we get the answer as sin(a) sin(n) - (a/2) cos(2a).
The curl of the given vector field F(x, y, z) = y cos(xy) i + x cos(xy)j – sin zk is (cos(xy) - xy sin(xy)) i - sin(z)j. F is not conservative as its curl is not zero. The scalar line integral of the vector field F along the curve C joining the origin to the point with coordinates (1, 2V2,2) is sin(a) sin(n) - (a/2) cos(2a).
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the student breaks taken during a class session are normally distributed with a mean of 6.3 minutes and a standard deviation of 2.2 minutes. find the probability that a student break lasts more than 7 minutes.
To find the probability that a student break lasts more than 7 minutes, we can use the z-score formula to standardize the break time and then use the standard normal distribution table or a calculator to find the probability. The probability that a student break lasts more than 7 minutes is approximately 0.3745 or 37.45%.
Step 1: Calculate the z-score.
The z-score formula is given by:
z = (X - μ) / σ
where X is the break time, μ is the mean, and σ is the standard deviation. In this case, X = 7 minutes, μ = 6.3 minutes,
and σ = 2.2 minutes. Plugging in these values:
z = (7 - 6.3) / 2.2 ≈ 0.32
Step 2: Find the probability using the standard normal distribution table or a calculator.
Now that we have the z-score, we can find the probability that a student break lasts more than 7 minutes. We want to find the area to the right of the z-score (0.32) since we are interested in break times longer than 7 minutes.
Using a standard normal distribution table or a calculator, we find that the area to the left of z = 0.32 is approximately 0.6255. However, we want the area to the right of z = 0.32, which is given by:
Area to the right of z = 1 - Area to the left of z
Area to the right of z ≈ 1 - 0.6255 ≈ 0.3745.
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Which equation can be used to describe the relationship between x and y in the table below?
Answer: i think y = x + 5
Step-by-step explanation:
3) Mary deposits £10000 in an account which pays 5.6% compound
interest per year.
How much will Mary have in her account after 5 years?
Answer:
FV= £13,131.66
Step-by-step explanation:
Giving the following information:
Initial Investment (PV)= £10,000
Interest rate (i)= 5.6%
Number of periods (n)= 5 years
To calculate the future value (FV), we need to use the following formula:
FV= PV*(1 + i)^n
FV= 10,000*(1.056^5)
FV= £13,131.66
Write the expression as an exponent: 6^15·36
Answer:
6^540
Step-by-step explanation:
The line plot displays the cost of used books in dollars.
A horizontal line starting at 1 with tick marks every one unit up to 9. The line is labeled Cost in Dollars, and the graph is titled Cost of Used Books. There is one dot above 2, 4, 8, and 9.There are two dots above 6 and 7. There are three dots above 3.
Which measure of center is most appropriate to represent the data in the graph, and why?
The mode is the most appropriate measure of center to represent the data in the graph because it reflects the most common value(s) observed in the dataset. In this case, the mode is 3.
The most appropriate measure of center to represent the data in the given line plot is the mode.
The mode is the value or values that occur most frequently in a dataset. In this case, we can observe the frequencies of the data points on the line plot:
There is one dot above 2, 4, 8, and 9.
There are two dots above 6 and 7.
There are three dots above 3.
Based on this information, the mode(s) of the dataset would be the values that have the highest frequency. In this case, the mode is 3 because it appears most frequently with a frequency of three. The other data points have frequencies of one or two.
The mode is particularly appropriate in this scenario because it represents the most common or frequently occurring value(s) in the dataset. It is useful for identifying the central tendency when the data is discrete and there are distinct peaks or clusters.
While the median and mean are also measures of center, they may not be the most appropriate in this case. The median represents the middle value and is useful when the data is ordered. However, the given line plot does not provide an ordered arrangement of the data points. The mean, on the other hand, can be affected by outliers and extreme values, which may not accurately represent the central tendency of the dataset in this scenario.
Therefore, the mode is the most appropriate measure of center to represent the data in the graph because it reflects the most common value(s) observed in the dataset. In this case, the mode is 3.
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Which equation is related to StartRoot x 10 EndRoot minus 1 = x?.
You can solve this equation by converting to standard form and using the formula for roots of quadratic equation.
The solution to given equation equation is \(x = \dfrac{-1 + \sqrt{37}}{2}\)
What is standard form of quadratic equation?The standard form of quadratic equation is given by:
\(ax^2 + bx + c =0\)
The roots of this equation is obtained by:
\(x =\dfrac{-b \pm \sqrt{b^2 -4ac }}{2a}\)
How to convert the given equation to standard form?We can take square on both sides to remove the root.
\(\sqrt{x+10} -1 =x\\ \sqrt{x+10} = x + 1\\ \\ \text{Taking square on both sides}\\ \\ x + 10 = (x + 1)^2\\ x + 10 = x^2 + 1 + 2x\\ x^2 + x - 9 = 0\\ \)
Know that we took square.
Also know that \((\sqrt{x+10})^2 = (-\sqrt{x+10})^2 = x+10\\ \) This is the reason that both roots we will obtain won't belong to our quadratic equation we obtained. Thus, we will have to check which root is correct solution of the obtained quadratic equation.
Now, comparing with standard form, we get a = 1, b = 1, c = -9, thus:
\(x = \dfrac{-1 \pm \sqrt{1 + 36}}{2} = \dfrac{-1\pm\sqrt{37}}{2}\)
x = 2.54 or x = -3.54
Putting both values, we get:
For x =2.54:
\(\sqrt{x+10} -1 =x\\ \sqrt{2.54+10}-1 = 2.54\\ 2.5411 \approx 2.54\)
For x = -3.54
\(\sqrt{x+10} -1 =x\\\sqrt{-3.54+10}-1 = -3.54\\1.5411 \neq -3.54\)
Thus, the solution to given equation equation is \(x = \dfrac{-1 + \sqrt{37}}{2}\)
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a hiking trail at a state park is 8.4 miles long a park ranger wants to place signs at the beginning and end of the trail and along the trail so that the signs are 1.4 miles apart how many signs will the ranger need?
Answer:
the ranger will need 6 signs
Step-by-step explanation:
Use the graph to determine
A) The function’s domain
B) The function’s range
C) The X-intercepts
D) Y-intercepts
E) The missing function values indicated by question marks below
Answer:its C
Step-by-step explanation:
they x will intercept when you do it right
Suppose Eric and Isaac both drive the same car, and have the same
deductible for car insurance. If Eric is five years younger, who is most likely to
pay a higher annual premium?
O
A. Isaac
O
B. Neither, they pay the same.
O
C. Can't tell from the information given
O
D. Eric
Answer:
eric
Step-by-step explanation:
just took the test
Hamid has gained weight.
he now weighs 88kg, this is 10% more than his normal weight.
what is hamids normal weight?
Answer:
174.6
Step-by-step explanation:
88 kg = 194.007 - 10%
194 * 10% = 194 - 19.4 = 174.6
solve: what is x ? x + x + x = 54
Answer:
18
Step-by-step explanation:
18+18+18=54
hope it helps
X+x+x=54
3x=54
X=54/3
X=18
If x^2 − 4x + 4 = 49, then what is x
Answer:
x=9 x=-5
Step-by-step explanation:
x² − 4x + 4 = 49
(x-2)²= 49
x-2= 7 or x-2=-7
x=9 or x=-5
how do you solve: 2(5+r)
A :7+r
B: 10+2r
C: 12r
D: 7+2r
Answer:
i think it´s b
Step-by-step explanation:
NO FILES PLEASE! THANKS!
Answer:
C, A and D
Step-by-step explanation:
pls help !
question - x divided by 3/7 = 7/15
btw the x is just an unknown fraction
use partial fractions to find the integral partial\:fractions\:\int \frac{16x-130}{x^2-16x 63}\:dx
The solution to the integral is ∫ (16x-130) / (x²-16x+63) dx = -ln|x-9| + 41ln|x-7| + C
Now, let's get into the details of the problem. We are given the integral:
∫ (16x-130) / (x²-16x+63) dx
To solve this integral, we first need to factor the denominator. We can factor it using the quadratic formula, which gives us:
x²-16x+63 = (x-9)(x-7)
Therefore, we can rewrite the integral as:
∫ (16x-130) / [(x-9)(x-7)] dx
To apply this technique, we need to first write the fraction as:
(16x-130) / [(x-9)(x-7)] = A/(x-9) + B/(x-7)
where A and B are constants that we need to find. We can find A and B by multiplying both sides by the common denominator and then equating the numerators. This gives us:
16x - 130 = A(x-7) + B(x-9)
Now, we can solve for A and B by substituting values of x that make one of the terms zero. For example, if we substitute x=9, we get:
16(9) - 130 = A(9-7) + B(9-9)
Simplifying this expression gives us:
2A = -2
Therefore, A = -1.
Similarly, if we substitute x=7, we get:
16(7) - 130 = A(7-7) + B(7-9)
Simplifying this expression gives us:
-2B = -82
Therefore, B = 41.
Now that we have found A and B, we can rewrite the original fraction as:
(16x-130) / [(x-9)(x-7)] = -1/(x-9) + 41/(x-7)
Using this decomposition, we can integrate the original function by integrating each term separately. This gives us:
∫ (16x-130) / [(x-9)(x-7)] dx = ∫ [-1/(x-9) + 41/(x-7)] dx
= -ln|x-9| + 41ln|x-7| + C
where C is the constant of integration.
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find the body axis roll, pitch, and yaw rates using the kinematic eqautionsomwphi = 100 deg/s phi = 45 deg/spsi = 10 deg/s psi = 360 deg/s theta = 10 deg/s theta = 5 deg/s
The body axis roll rate is 1.102 rad/s, the body axis pitch rate is -3.647 rad/s, and the body axis yaw rate is 0.079 rad/s
How to use the kinematic equation?To find the body axis roll, pitch, and yaw rates using kinematic equations, we need to use the following equations:
Body axis roll rate (p) = (Ixx * L + (Izz - Iyy) * Q * R) / Ixx
Body axis pitch rate (q) = (Iyy * M + (Ixx - Izz) * P * R) / Iyy
Body axis yaw rate (r) = (Izz * N + (Iyy - Ixx) * P * Q) / Izz
where:
p, q, and r are the roll, pitch, and yaw rates in radians per second, respectively
L, M, and N are the moments about the body axes in Newton meters
P, Q, and R are the angular velocities about the body axes in radians per second
Ixx, Iyy, and Izz are the moments of inertia about the body axes in kilogram meters squared
To convert the given values in degrees per second to radians per second, we need to multiply them by pi/180.
Using the given values, we have:
omwphi = 100 deg/s = 100 * pi/180 rad/s = 1.745 rad/s
phi = 45 deg/s = 45 * pi/180 rad/s = 0.785 rad/s
psi = 10 deg/s = 10 * pi/180 rad/s = 0.175 rad/s
psi = 360 deg/s = 360 * pi/180 rad/s = 6.283 rad/s
theta = 10 deg/s = 10 * pi/180 rad/s = 0.175 rad/s
theta = 5 deg/s = 5 * pi/180 rad/s = 0.087 rad/s
Assuming the moments of inertia about the body axes are known, we can use the above equations to calculate the body axis roll, pitch, and yaw rates.
For example, let's say the moments of inertia about the body axes are:
Ixx = 100 kg \(m^2\)
Iyy = 200 kg \(m^2\)
Izz = 300 kg \(m^2\)
Using these values and the given angular velocities, we can calculate the body axis rates as follows:
Body axis roll rate (p) = (Ixx * L + (Izz - Iyy) * Q * R) / Ixx
= (100 * 0 + (300 - 200) * 0.175 * 6.283) / 100
= 1.102 rad/s
Body axis pitch rate (q) = (Iyy * M + (Ixx - Izz) * P * R) / Iyy
= (200 * 0 + (100 - 300) * 1.745 * 6.283) / 200
= -3.647 rad/s
Body axis yaw rate (r) = (Izz * N + (Iyy - Ixx) * P * Q) / Izz
= (300 * 0.087 + (200 - 100) * 1.745 * 0.175) / 300
= 0.079 rad/s
Therefore, the body axis roll rate is 1.102 rad/s, the body axis pitch rate is -3.647 rad/s, and the body axis yaw rate is 0.079 rad/s
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PLEASE HELP IM STRUGGLING here is a rectangle all the measurements are in centimeters
The perimeter of the rectangle is 39cm
Work out the area of the rectangle
Answer:
Area of the rectangle = 95 cm²
Step-by-step explanation:
Perimeter of the rectangle = Sum of the measures of the sides of the rectangle
From the figure attached,
Perimeter of the rectangle = 2[(3x -1) + (2x + 3)]
39 = 2(5x + 2)
39 = 10x + 4
10x = 39 - 4
10x = 35
x = 3.5
Therefore, measure of the given sides will be,
Length = (3x - 1) cm
3x - 1 = (3×3.5) - 1
= 10.5 - 1
= 9.5 cm
Width = (2x + 3) cm
2x + 3 = (2×3.5) + 3
= 7 + 3
= 10 cm
Area of the rectangle = Length × width
= 9.5 × 10
= 95 cm²
Therefore, area of the rectangle is 95 cm².
in the expression 3² + 5 · 3 what needs to be done first? exponents addition multiplication
Answer:
If you use the PEMDAS method, you can see that exponents should be done first.
Step-by-step explanation:
You repeatedly toss a 10 sided dice and a 2 faced coin.
What is the probability of getting a 2 or a head from the dice and coin, respectively? [enter an exact fraction in reduced form]
The probability of getting a 2 from the 10-sided dice and a head from the 2-faced coin is 1/20.
To calculate the probability of getting a 2 from the 10-sided dice, we need to know the number of sides on the dice that have a 2. If the 10-sided dice is fair and each side has an equal probability of landing, and assuming one side has a 2, then the probability of getting a 2 is 1/10.
To calculate the probability of getting a head from the 2-faced coin, we know that there are 2 possible outcomes (head or tail) and assuming the coin is fair, each outcome has an equal probability. Therefore, the probability of getting a head is 1/2.
Since these two events are independent, we can multiply their probabilities to find the probability of both events happening together.
Probability of getting a 2 and a head = Probability of getting a 2 from the dice * Probability of getting a head from the coin
= (1/10) * (1/2)
= 1/20
Therefore, the probability of getting a 2 from the 10-sided dice and a head from the 2-faced coin is 1/20.
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Functions f(x)16x^2
G(x) 1/4 sq root x
Answer:
x
x
are the same
Step-by-step explanation:
when you plug in g(x) into f(x)
f(x)=16((1/4)(x)^.5)==x
then vice versa
g(x)=(1/4)((16x^2)^.5)==x
They are the same and, therefore, inverses of each other.
Can someone help me simplify 0.482 into a simplified fraction and the number is repeating.
Answer:
482/999
Step-by-step explanation:
Since there are 3 repeating digits, starting at the decimal point, the short answer is that the fraction is ...
482/999
where 999 has a number of 9's equal to the number of repeating digits.
This fraction cannot be reduced.
_____
Long answer
Multiply the value by 1000 = 10^3, where the '3' is the number of repeating digits. Then subtract the original and divide by the coefficient of 'x'.
\(x=0.\overline{482}\\1000x=482.\overline{482}\\1000x-x=482.\overline{482}-0.\overline{482}\\999x=482\\\\x=\dfrac{482}{999}\)
482 and 999 have no common factors, so the fraction cannot be reduced.
you are filling a bookcase with books the bookcase is 3 ft wide your hardcover books are 1 1/2 inches wide and your paperback books are 3/4 inches wide if you already placed 8 hardcover books on the shelf what is the maximum of paperback books you can also fit on the shelf?
A number rounded to the nearest hundred thousand is 400,000. The same number rounded to the nearest ten thousand is 350,000. What could be the number?
pls help!! ASAP
Answer:
It could be 351,00
Step-by-step explanation:
All we know is that x must round to 350,000 while rounding to 400,000. Any number above 350,000 rounds to 400,000. The number must not be greater than 355,000. Any number in between 350,000 and 355,000 works.
Solve the equation x/1-x - 4x = 0
Answer: x=0
Step-by-step explanation: