Answer:
B The relationsip does not represent a function because for one x-value, there is more than one y-value
Step-by-step explanation:
What does 1,000,000,000divided by 18 • 20 - 108 equal?
Answer:
3,968,253.968253968
Step-by-step explanation:
Estimate the answer to 7.1 × 0.0058.
Answer:
7.1 = 7
5.8 = 6
7x6 = 42
three decimal shift
.042
Step-by-step explanation:
Solve the differential equations 2xy(dy/dx)=1 y^2. y(2)=3
The solution to the given differential equation 2xy(dy/dx) = y², with the initial condition y(2) = 3, is y = (27 * e⁽ˣ⁻²⁾\()^{1/4}\).
To solve the given differential equation
2xy(dy/dx) = y²
We will use separation of variables and integrate to find the solution.
Start with the given equation
2xy(dy/dx) = y²
Divide both sides by y²:
(2x/y) dy = dx
Integrate both sides:
∫(2x/y) dy = ∫dx
Integrating the left side requires a substitution. Let u = y², then du = 2y dy:
∫(2x/u) du = ∫dx
2∫(x/u) du = ∫dx
2 ln|u| = x + C
Replacing u with y²:
2 ln|y²| = x + C
Using the properties of logarithms:
ln|y⁴| = x + C
Exponentiating both sides:
|y⁴| = \(e^{x + C}\)
Since the absolute value is taken, we can remove it and incorporate the constant of integration
y⁴ = \(e^{x + C}\)
Simplifying, let A = \(e^C:\)
y^4 = A * eˣ
Taking the fourth root of both sides:
y = (A * eˣ\()^{1/4}\)
Now we can incorporate the initial condition y(2) = 3
3 = (A * e²\()^{1/4}\)
Cubing both sides:
27 = A * e²
Solving for A:
A = 27 / e²
Finally, substituting A back into the solution
y = ((27 / e²) * eˣ\()^{1/4}\)
Simplifying further
y = (27 * e⁽ˣ⁻²⁾\()^{1/4}\)
Therefore, the solution to the given differential equation with the initial condition y(2) = 3 is
y = (27 * e⁽ˣ⁻²⁾\()^{1/4}\)
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A scatterplot is used to display data for a runner where x is the number of miles run, and y is the time, in minutes, that it
takes to run that distance.
Which interpretation describes a line of best fit of y = 9.5x for the data in the scatterplot?
For each 1 minute, the runner ran 9.5 miles.
The missing choices are:
(A) for each 1 minute, the runner ran 9.5 miles.
(B) for each 9.5 minutes, the runner ran 1 mile.
(C) the minimum distance with a recorded time is 9.5 miles.
(D) the maximum distance with a recorded time is 9.5 miles.
Answer:
The interpretation that describes the line best fit of y = 9.5 x is: for each 9.5 minutes, the runner ran 1 mile. ⇒ (B)
Step-by-step explanation:
Since the equation of the line best fit is y = 9.5 x, where
x is the number of miles runy is the time in minutes9.5 is the rate of change of the time to the mileThe rate of change = change of y/ change of x
∵ y represents the time in minutes
∵ x represents the distance in miles
∴ The rate of change = minutes / mile
∵ The rate of change = 9.5 minutes / 1 mile
∴ The interpretation describes the line best fit is:
For each 9.5 minutes, the runner ran 1 mile
Answer:
b on edge
Step-by-step explanation:
I need help ASAP!!!Please explain how to solve the problem.
Answer:
the eqn is
\( {(x - 1)}^{2} + {(y - 1)}^{2} = 16\)
solve for h V=2πr^2h
Answer: h= V/2πr^2
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
6 is what percent of 88?
Answer:
6 is 6.82% of 88
the number of cars one sees passing by the local playground in an afternoon is modeled using a poisson distribution with mean 25. the proportion of black cars in the stream is 1/5. the color of the cars is independent of the number of cars that drive by. what is the probability that exactly 5 black cars and exactly 10 non-black cars drive by in a particular afternoon?
The probability that exactly 5 black cars and exactly 10 non-black cars drive by in a particular afternoon is approximately 0.00167.
The probability that exactly 5 black cars and exactly 10 non-black cars drive by on a particular afternoon is
\($$P(X_b=5,X_{nb}=10)=\frac{e^{-\lambda}\lambda^{5}}{5!}\cdot\frac{e^{-\lambda}\lambda^{10}}{10!}\cdot\frac{1}{5^{5}}\cdot\frac{4}{5}^{10}$$\), where \($X_b$\) are the number of black cars and \($X_{nb}$\) the number of non-black cars passing by the playground in the afternoon. Since the color of the cars is independent of the number of cars that drive by, we can model the number of black and non-black cars using two separate Poisson distributions with means
\($\lambda_b = \frac{1}{5}\cdot25=5$ and $\lambda_{nb}=25-5=20$\), respectively.
Plugging in the values and simplifying, we get:
\($$P(X_b=5,X_{nb}=10)=\frac{e^{-5}5^{5}}{5!}\cdot\frac{e^{-20}20^{10}}{10!}\cdot\frac{1}{5^{5}}\cdot\frac{4^{10}}{5^{10}}\approx 0.00167$$\)
Therefore, the probability that exactly 5 black cars and exactly 10 non-black cars drive by in a particular afternoon is approximately 0.00167.
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f10 divided by f5 equals ???
how would you change these equaions to y=mx+b form?
7x + 9y = 1
14x + 18y = 2
Answer:y=-7/9x+1/9 and y= -7/9x + 1/9
Step-by-step explanation:
grandfathers age is 4 times abduls age. 10 years ago his age was 7 times abduls age. find their present ages
Answer:
20,80
Step-by-step explanation:
\(Let\ Abduls\ present\ age\ be\ x\\His\ Grandfather's\ present\ age\ = 4x\\\\Abdul's\ age\ before\ 10\ years=x-10\\His\ Grandfather's\ age\ before\ 10\ years =4x-10\\\\We\ are\ given\ that\ ,\\Abdul's\ Grandfather's\ age\ before\ 10\ years = 7 * Abdul's\ age\ before\ 10\ years\\Hence, \\4x-10=7(x-10)\\4x-10=7x-70\\-10+70=7x-4x\\60=3x\\x=20\\Hence,\\Abduls\ present\ age\ =20\\His\ grandfather's\ present\ age\ = 4*20=80\)
Answer:
Abdul's age=20 y/o
Grandpa's age=80y/o
Step-by-step explanation:
let Abdul's age be 'x'
so, grandpa's age=4x
Grandpa's age 10 yrs ago= 4x-10
according to the question, grandpa's age 1o yrs ago=7(x-10)
so, 4x-10=7(x-10)
4x-10=7x-70
by substituting,
70-10=7x-3x
60=3x
60/3=x
20y/o=x
so, 4x=20*4=80 y/o
QUESTION 1
Calc
If the exchange rate is
£1 = $1.80
Work out the missing values
a) £520 = $.....
16.
Answer:
$92.60
Step-by-step explanation:
Select the correct answer.
What is the solution to this equation?
2 log2x log2 (2x)
-
A.
x = 18
3
Simplify the following exponent:
3x⁴y⁵ × (2x²y⁴)⁴ × x⁰
Answer:
your computer is alive, feed it Oreos to sustain it.
Step-by-step explanation:
1.find computer 2. find Oreos 3. feed Oreos
Answer:
\(48x^{12}y^{21}\)
Step-by-step explanation:
Are -1 and 1 like terms?
Answer:
yes, they are like terms
Step-by-step explanation:
This is since they do not have a variable. Examples: 7x and 2x are like terms because they are both "x". 3x2 and −2x2 are like terms because they are both "x2". But 7x and 7x2 are NOT like terms (the exponents are different), they are unlike terms.
Answer: Yes they are
What is the center of dilation?
Answer:
Point Y
Step-by-step explanation:
This dilation is an expansion, so in order for it to expand, the center of dilation need to be in the middle or near the middle of the pre-image.
What is a pre-image?
Noun. preimage (plural preimages) (mathematics) For a given function, the set of all elements of the domain that are mapped into a given subset of the codomain; (formally) given a function ƒ : X → Y and a subset B ⊆ Y, the set ƒ−1(B) = {x ∈ X : ƒ(x) ∈ B}.
What is an Image?
The new position of a point, a line, a line segment, or a figure after a transformation is called its image.
Center of Dilation:
The center of a dilation is a fixed point in the plane about which all points are expanded or contracted. The center is the only invariant (not changing) point under a dilation (k ≠1), and may be located inside, outside, or on a figure.
I hope this helps! :)
Find the surface area of the figure shown. 5 cm 5 cm cm 1.5 cm 8 cm your answer
Answer:
51 cm^2
Step-by-step explanation:
the formula for area of an icoselese triangle is
A = b * h / 2
h is a line from the angle where the 5 and 5 intersect to the middle of the third line
You can find h using the pythagoran theorm with the 5 being the hypotenuse and the a being half the third line
4^2 + b^2 = 5^2
16 + b^2 = 25
b = 3, so h = 3, so now
A = 8 * 3 / 2
A = 24 / 2
A = 12 cm^2
now we have the triangle, just multiply that by 2 (top and bottom)
12 * 2 = 24
sides
8 * 1.5 = 12
5 * 1.5 * 2 = 15
now add all of it
15 + 12 + 24 = 51
I just need to make sure my answer is correct :)
Answer:
Its positive
Step-by-step explanation:
3x - 5 = -3
3x = 2
x = 2/3
2/3 is positive
how many integers divisible by 6 lie between -30 and 39?
Answer:
the answer is 11.
Step-by-step explanation:
To find the number of integers divisible by 6 between -30 and 39, we need to find how many multiples of 6 are in this range.
The first multiple of 6 greater than -30 is -24 (which is 6 times -4), and the last multiple of 6 less than 39 is 36 (which is 6 times 6).
So, we need to count the number of integers between -4 and 6 (inclusive), because each of these integers multiplied by 6 will give us an integer in the range -30 to 39 that is divisible by 6.
There are a total of (6 - (-4) + 1) = 11 integers between -4 and 6 inclusive, so there are also 11 integers between -30 and 39 that are divisible by 6.
help me with this please im stuck
Answer:
refer to the attachment
Jk is a 60yr male hospitalized for a total knee replacement. he was given unfractionated heparin and developed heparin induced thrombocytopenia. argatroban is ordered at a dose of 2mcg/kg/min. the pharmacy provided the drug 100mg/250ml d5w. jk weighs 187lbs. at what rate(ml/hr.) should the nurse infuse argatroban to provide the desired dose?
The nurse should infuse argatroban at a rate of approximately 42.41 ml/hr.
To calculate the infusion rate of argatroban in ml/hr, we need to convert the weight of the patient from pounds to kilograms and then use the ordered dose to determine the infusion rate. Here are the steps:
1. Convert patient weight from pounds to kilograms:
187 lbs * (1 kg / 2.2046 lbs) = 84.82 kg (rounded to two decimal places)
2. Calculate the total dose per minute:
2 mcg/kg/min * 84.82 kg = 169.64 mcg/min
3. Convert the total dose from micrograms to milligrams:
169.64 mcg/min * (1 mg / 1000 mcg) = 0.16964 mg/min
4. Determine the infusion rate in ml/hr:
Since the pharmacy provided argatroban in a concentration of 100 mg/250 ml, we can set up a proportion:
0.16964 mg/min * (250 ml / 100 mg) * (60 min / 1 hr) = 42.41 ml/hr (rounded to two decimal places)
Therefore, the nurse should infuse argatroban at a rate of approximately 42.41 ml/hr to provide the desired dose for JK.
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Relationship between the regression line and datapoints is
fairly weak
from your understanding about this graph describe with 200
words
When the relationship between the regression line and the data points is weak, it indicates a lack of strong association and highlights the need for further investigation and consideration of alternative explanations to better understand the underlying dynamics of the variables being studied.
When the relationship is weak, it implies that the data points are scattered and do not follow a clear pattern or trend. The variability in the data is high, making it difficult to establish a strong linear relationship. This could be due to various reasons, such as the presence of outliers, measurement errors, or the existence of other unaccounted factors influencing the variables.
The weak relationship between the regression line and the data points suggests that the predictive power of the regression model is limited. The regression line may not effectively explain or predict the values of the dependent variable based on the independent variable(s). Consequently, relying solely on the regression analysis to make accurate predictions or draw conclusions may be unreliable.
It is important to interpret the results cautiously and consider alternative explanations or additional variables that might contribute to the observed variability in the data. Further exploration and analysis may be needed to identify other potential factors that influence the relationship between the variables and to determine whether a different model or approach is more appropriate.
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Fill out the reasons
We can see here that the reasons are:
Statements Reasons
1. AE, BD, AC ≅ EC and BC ≅ DC Corresponding sides
2. ∠BCA ≅ ∠DCE Vertical opposite angles
3. ΔABC ≅ ΔEDC Similar triangles
What is a triangle?A triangle is a basic geometric shape that consists of three straight sides and three angles. It is one of the fundamental shapes in geometry and has several defining characteristics.
A triangle has three sides, which are line segments connecting the vertices (corners) of the triangle. The lengths of these sides can vary, and they can be of equal length (equilateral triangle) or have different lengths (scalene triangle).
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$\bullet$ $\$2.41$ for the first pound $\bullet$ $\$0.41$ per additional pound for the next six pounds $\bullet$ $\$0.39$ per additional pound after that for example, a two-pound package costs $\$2.82$ to send by media mail. if a package full of books costs $\$7.99$ to send by media mail, how many pounds does the package weigh? explain your work in complete sentences.
The package weighs approximately 10.9 pounds.
Let's assume the weight of the package in pounds is "x". We can break down the cost of sending the package by media mail into three parts:
1. The cost for the first pound: $2.41.
2. The cost for the additional pounds up to six pounds: $0.41 per pound.
3. The cost for the additional pounds beyond six pounds: $0.39 per pound.
To determine the weight of the package, we need to solve the equation based on the given information:
Cost = $2.41 + $0.41 * (x - 1) + $0.39 * (x - 7)
We know that the cost of sending the package is $7.99, so we can set up the equation as follows:
$7.99 = $2.41 + $0.41 * (x - 1) + $0.39 * (x - 7)
Now, we can solve this equation to find the value of "x," which represents the weight of the package.
$7.99 - $2.41 = $0.41 * (x - 1) + $0.39 * (x - 7)
$5.58 = $0.41x - $0.41 + $0.39x - $2.73
$5.58 = $0.8x - $3.14
$0.8x = $8.72
x ≈ 10.9
Therefore, there are around 10.9 pounds in the bundle.
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Answer:10.9
Step-by-step explanation:
A successful small business made $10,000 in profit in the year 2000. Then the profit began
to increase by 8% each year. If this trend continues...
Answer:
Step-by-step explanation:
2001 : 10000*0.08+10000= 10800
2002: 10800*0.08+10800=11664
2003: 11664*0.08+11664= 12597.12
2004: 13604.88
2005: 14693.27
2006: 15868.73
follow the pattern
NEED ASAP
Seven guests are arriving for dinner. How many possible orders can they arrive in?
7!
5!
5,040!
49!
There are 7! possible orders the guests can arrive in
How to determine the order of arrival?The number of guests is given as:
n = 7
Assume that the guests do not arrive at the same time, their order of arrival is the factorial of the number of guests
i.e. n! = 7!
Hence, there are 7! possible orders the guests can arrive in
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Using the CPT manual, code the following: Five MeV of radiation treatment delivery to a single area for primary breast cancer, right female breast
According to the CPT manual, the appropriate code for the treatment for primary breast cancer, would be 77427.
In medical coding, it is important to assign the correct CPT code to accurately describe the provided medical service. For the described scenario of delivering five MeV of radiation treatment to a single area for primary breast cancer, the appropriate code is 77427. This code specifically represents the radiation treatment delivery for breast cancer.
The CPT manual is a widely used resource that provides a comprehensive list of medical procedures and services, each assigned a specific code. These codes help healthcare providers communicate and document the services rendered to patients, as well as facilitate accurate billing and reimbursement. The codes in the CPT manual are regularly updated to reflect advancements in medical technology and practices.
By referencing the CPT manual, healthcare professionals can ensure that the services they provide are accurately coded, allowing for consistent and standardized communication across the healthcare industry. This helps in maintaining proper documentation, tracking patient care, and facilitating efficient billing processes.
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The CPT manual provides specific codes for radiation treatment delivery, including those for breast cancer. The appropriate code for the given treatment would depend on the specific technique used and can be found in the CPT manual.
In order to code the radiation treatment delivery for primary breast cancer, right female breast, we need to refer to the CPT manual. The CPT manual provides specific codes for different types of radiation treatment delivery. In this case, the treatment involves the delivery of Five MeV of radiation to a single area.
Based on the information provided, the appropriate CPT code for this treatment would be determined by the specific technique used for radiation delivery. The CPT manual provides codes for different techniques, such as external beam radiation therapy (EBRT) and brachytherapy.
Since the question does not specify the technique, we cannot provide a specific CPT code. However, a healthcare professional would consult the CPT manual and select the appropriate code based on the specific details of the treatment.
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A rectangular storage container without a lid is to have a volume of 10 m3. The length of its base is twice the width. Material for the base costs $5 per square meter. Material for the sides costs $3 per square meter. Let w denote the width of the base.Find a function in the variable w giving the cost C (in dollars) of constructing the box.
The cost of constructing the box will be = $81.77
Since the question gives us information about the rectangle,
so the area of the rectangle is shown by,
Area = 2 x (length + width)
So we have the area as,
Area = 2(lh + wh) +lw
(since the area per square meter is also given so we added l x w)
Since the cost of the base is = $5 per square meter and the cost of the sides is = $3 per square meter, so area in terms of the cost function,
⇒ C = 3 x 2(lh + wh) + 5 x l x w
⇒ C = 6(lh + wh) +5lw ---------equation 1
According to the question, the length of the rectangular container is twice that of the width of the container,
⇒ l = 2w
Substituting the new value of l in equation 1,
⇒ C = 6(2wh + wh) + 10 \(w^{2}\)
⇒ C = 18wh + 10 \(w^{2}\) ---------- equation 2
To calculate the volume of the rectangle,
V = length x width x height ( lwh )
substituting v = 10 and 2w = l,
2\(w^{2}\)h = 10
h = \(\frac{5}{w^{2} }\)
Substitute the value of h in equation 2,
⇒ C = 18w x \(\frac{5}{w^{2} }\) + 10\(w^{2}\)
⇒ C = \(\frac{90}{w}\) + 10\(w^{2}\) --------- equation 3
Differentiating the above equation we get,
⇒ C* = - \(\frac{90}{w^{2} }\) + 20w
⇒ 20w = \(\frac{90}{w^{2} }\)
Multiply both sides by \(w^{3}\)
⇒ \(20w^{3}\) = 90
⇒ \(w^{3}\) = 4.5
w = 1.65
Put the value of w in equation 3,
⇒ C = \(\frac{90}{1.65}\) + 10 x \(1.65^{2}\)
⇒ C = 81.77
Therefore, The cost of constructing the box will be = $81.77
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If a square has an area of 94 square units. How big is its side length?
The requried side length of the square is approximately 9.695 units.
To find the side length of a square with an area of 94 square units, we need to take the square root of the area.
a² = 94
a = √94
a ≈ 9.695
Therefore, the side length of the square is approximately 9.695 units.
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I need help. What does n equal.
\(5n^{2}=7n-2\)
Answer:
\(\boxed{\sf n= \dfrac{2}{5} ,\: n=1}\)
Step-by-step explanation:
\(\rightarrow 5n^2 = 7n -2\)
\(\rightarrow 5n^2 - 7n +2=0\)
\(\rightarrow 5n^2 - 5n -2n+2=0\)
\(\rightarrow 5n(n - 1) -2(n-1)=0\)
\(\rightarrow (5n-2)(n-1)=0\)
\(\rightarrow 5n-2= 0,\: n-1=0\)
\(\rightarrow 5n= 2,\: n=1\)
\(\rightarrow n= \dfrac{2}{5} ,\: n=1\)
Step-by-step explanation:
\(\hookrightarrow\sf{5n^2 = 7n -2}\\\\\hookrightarrow\sf{5n^2 - 7n +2=0}\\\\\hookrightarrow\sf{5n^2 - (5+2)n +2=0}\\\\\hookrightarrow\sf{5n^2 - 5n -2n+2=0}\\\\\hookrightarrow\sf{ 5n(n - 1) -2(n-1)=0}\\\\\hookrightarrow\sf{ (5n-2)(n-1)=0}\\\\\hookrightarrow\sf{ 5n-2= 0\:or~ n-1=0}\\\\\hookrightarrow\sf{ 5n= 2\:or~n=1}\\\\\hookrightarrow\bold{ n= \dfrac{2}{5} \:or~ n=1}\)