Answer: The percentage of operations last longer than 138 minutes =15.87%
Step-by-step explanation:
Let x denotes the duration of routine operations in a certain hospital.
Given: The duration of routine operations has approximately a normal distribution with [tex]\mu[/tex] = 120 minutes and [tex]\sigma=[/tex] 18 minutes.
The probability that operations last longer than 138 minutes = [tex]P(X>138)[/tex]
[tex]=P(\dfrac{X-\mu}{\sigma}>\dfrac{138-120}{18})\\\\=P(Z>1)\ \ \ [Z=\dfrac{X-\mu}{\sigma}]\\\\=1-P(Z<1)\\\\=1- 0.8413\\\\=0.1587[/tex]
The percentage of operations last longer than 138 minutes =15.87%
Juan has $10. He recently got a job and now makes $9.15 an hour. He now has $760.30. How many hours has he worked?
Answer:
760.30 - 10 = 750.30
750.30÷9.15=82
Step-by-step explanation:
Take what he have at the end subtract by what he had ad at the start to find how much he earned in total.
Then divide by the money earned per hour to find how many hours worked.
Help me pls
this is very important
Answer:
C/3rd one. (y=2x+4)
Step-by-step explanation:
In the equation y=mx+b, m=slope of the line and b=y-intercept. From the graph, we know the y-intercept is 4 so we can write y=mx+4. To find the slope: (0-4)/(-2-0) = (-4)/(-2) = 2. We can replace the m with 2 to get the final equation of y=2x+4 which is also the third answer.
can you slve fasssst pls
Step-by-step explanation:
the value of x is 18 degree and the value of Y is 15 degree
2. Dado un número, la suma de su mitad, su doble y su triple es 55. ¿Qué número es?
Answer:
English
Step-by-step explanation:
can you speak English plzzz
we need that
Answer:
i dont speak taco ask again in english
Step-by-step explanation:
help me please i need help on this
Answer:
CE = 20
Step-by-step explanation:
Given a line parallel to a side of a triangle and intersecting the other 2 sides then it divides those sides proportionally, that is
[tex]\frac{6}{8}[/tex] = [tex]\frac{15}{CE}[/tex] ( cross- multiply )
6 CE = 120 ( divide both sides by 6 )
CE = 20
The adjacent sides of a rectangle are (2x – 1) and (x + 5). Find its area.
Answer:
2x²+9x-5
Step-by-step explanation:
Area of a rectangle = Length * Width
If the adjacent sides are 2x – 1) and (x + 5), the area is calculated as;
A = (2x – 1) * (x + 5).
A = 2x²+10x-x-5
A = 2x²+9x-5
Hence the area of the rectangle with the adjacent sides is 2x²+9x-5
Type the equation for the graph below.
please help!!!
Answer:
y = 1sin(3x)
Step-by-step explanation:
y = A sin( (2π/ω)x )
A is amplitude = 1
ω is period = 2π/3
------------------------------
y = 1sin( 2π / (2π/3) x)
y = 1sin(3x)
The equation for the graph with a sinusoidal wave, given an amplitude of 1, a period of 2π/3, and a phase shift of 0, is y = sin((2π/3)x).
The equation for a sinusoidal wave can be written as:
y = A * sin(ωx + φ)
In this case, we are given the values of amplitude (A = 1), period (ω = 2π/3), and phase shift (φ = 0).
The amplitude (A) represents the maximum displacement or height of the wave from the center line. In this case, it is 1.
The period (ω) represents the length of one complete cycle of the wave. The period is the reciprocal of the frequency, and in this case, it is 2π/3.
The phase shift (φ) represents any horizontal displacement of the wave. In this case, the phase shift is 0, indicating that the wave starts at its equilibrium position.
Using these values, the equation for the given graph would be:
y = 1 * sin((2π/3)x + 0)
Simplifying it further:
y = sin((2π/3)x)
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Find the value of angle y
Answer:
116
Step-by-step explanation:
116 is parallel to y so that are the same its called corresponding angles
When a transversal cuts two parallel lines, the corresponding angles are equal.
In the given figure, the corresponding angles are 116° and y
So, they are equal
⇒ y = 116°
Find the y-intercept of the quadratic function: g(x) = 5х2 + 9x + 4 о (0, 18) (4.0) ООО (0.4) (0,5)
Answer:
(0,4)
Step-by-step explanation:
Here, we want to find the y-intercept of the quadratic function
g(x) = 5x^2 + 9x + 4
Mathematically, we know that the y-intercept is the position on the graph where we have x = 0
so, to find the y-intercept value, we have to find g(0)
simply put, we have to substitute the value of 0 for x
Mathematically, we have this as;
g(0) = 5(0)^2 + 9(0) + 4
g(0) = 0 + 0 + 4
g(0) = 4
thus, we have the y-intercept point as (0,4)
f(x)=-3x^2-20
find f(-9)
Answer: go to symbolab i swear it will help if not apologies
Step-by-step explanation:
Determine whether the triangles are congruent. Explain your reasoning .
SAS (Side, Angle, Side) or ASA (Angle, Side, Angle)
Answer:
not congruent, they must have 3 equal sides and 3 equal angles. 72+38= 110, which means the last angle is 70°
Step-by-step explanation:
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Lara planted some seeds. For every 3 seeds Lara planted, only 2 seeds grew. Altogether, 12 seeds grew. How many seeds did Lara plant?
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Sulio wants to build a wooden fence to enclose his vegetable garden. Determine the amount of fencing he needs by finding the perimeter of the garden.
Perimeter = 2 times length + 2 times width. The length of a garden is 8 feet and the width is 6 feet.
Evaluate the formula for the perimeter of a parallelogram to solve the problem. Then check all that apply.
First, write the formula for the perimeter of a parallelogram, P = 2l + 2w.
Next, use parentheses when you substitute 8 for l and 6 for w.
After multiplying, add 16 and 12.
Sulio needs 28 feet of fencing.
Sulio needs 48 feet of fencing.
Answer:
Sulio needs 28 feet of fencing.
Step-by-step explanation:
P = 2l + 2w
P = 2(8) + 2(6)
P = 16 + 12
P = 28
Answer:
The answer is
First, write the formula for the perimeter of a parallelogram, P = 2l + 2w.
Next, use parentheses when you substitute 8 for l and 6 for w.
After multiplying, add 16 and 12.
Sulio needs 28 feet of fencing.
Step-by-step explanation:
this is your answer
Which is equivalent to7^(3/2) over 7^(1/2)?
A. 7^(1/3)
B. 7^(3/4)
C. 7^1
D. 7^2
E. 7^3
Given the expression below:
[tex] \large{ \frac{ {7}^{ \frac{3}{2} } }{ {7}^{ \frac{1}{2} } } }[/tex]
Use the following property:
[tex] \large \boxed{ {a}^{ \frac{m}{n} } = \sqrt[n]{ {a}^{m} } }[/tex]
Therefore:
[tex] \large{ \frac{ {7}^{ \frac{3}{2} } }{ {7}^{ \frac{1}{2} } } = \frac{ \sqrt{ {7}^{3} } }{ \sqrt{7} } } \\ \large{ \frac{ \sqrt{ {7}^{3} } }{ \sqrt{7} } = \frac{ \sqrt{7 \times 7 \times 7} }{ \sqrt{7} } \longrightarrow \frac{7 \sqrt{7} }{ \sqrt{7} } } \\ \large{ \frac{7 \cancel{ \sqrt{7} }}{ \cancel{ \sqrt{7} }} = 7}[/tex]
Note that a¹ = a. Therefore, 7¹ = 7.
Answer
7¹ or 7.find the area of the figure below
A.832in^2
B.768^2
C.416^2
D.384in^2
Corey is two times older than Brad. If the sum of their ages is 54, how old is Brad?
Answer:
Corey has to be 36 while Brad is 18
Step-by-step explanation:
The factors of 54 is 1,2,3,6,9,18,27, and 54.
i pulled 18 because it look like the key number. Corey is 2 times older than Brad, that means you add multiply 18 x 2. Then you get 36. Then u subtract 36 from 54 then you get Brads age :)
Find the greatest common factor of 28a^3 , 12a^4 and 26a^5
Answer:
2a³
Step-by-step explanation:
2a³ can divide all these without living a remainder
If mABC=125 and mABD=94 then m DBC, somebody help!
Answer:
31 degrees
Step-by-step explanation:
Subtract 94 from 125 to get the measure of angle DBC.
WILL GIVE BRAINLIEST!
3 Using SOH CAH TOA!
1 point
Find the missing side length,
1
16
23°
2
х
Type your answer...
Previous
Help please! Someone!
Answer:
8
Step-by-step explanation:
Since AB is tangent to the circle, ABC is a 90 degree angle. Using either knowledge about special triangles (3-4-5) or the Pythagorean theorem, BC will equal 8.
Hope this helped.
This is my last question I need to do what’s the answer
Step-by-step explanation:
According to the question,
l+5=2h
A plant 3 inches tall grows an average of 0.5 inches each month. Which equation models the heigh h after x months
Answer:H = 3 + 0.5x
Step-by-step explanation:
This would be H = 3 + 0.5x
Solve:
[tex] \frac{dy}{dx} = {x}^{3} + 5x - 18[/tex]
[tex]y = \frac{1}{4} {x}^{4} + \frac{5}{2} {x}^{2} - 18x + k[/tex]
Step-by-step explanation:
[tex]dy = ( {x}^{3} + 5x - 18)dx[/tex]
Integrating the above expression, we get
[tex]y = \int( {x}^{3} + 5x - 18)dx[/tex]
[tex] = \frac{1}{4} {x}^{4} + \frac{5}{2} {x}^{2} - 18x + k[/tex]
where k is the constant of integration
Find the value of x
Answer:
x=19.78
Step-by-step explanation:
Given triangle:
P=2.0
h=5.9
[tex]sin x=\frac{2.0}{5.9} \\sin x=0.338\\x= sin ^-10.338\\x=19.78^0[/tex]
Two vertices of a right triangle have the coordinates (-2, 5) and (9, 5). What is the length of the side formed by these vertices?
Answer:
11 unit
Step-by-step explanation:
Applying,
s = √[(y₂-y₁)²+(x₂-x₁)²]...................... Equation 1
Where s = length of the side formed.
From the question,
Given: x₁ = -2, x₂ = 9, y₁ = 5, y₂ = 5
Substitute these values into equation 1
s = √[(9+2)²+(5-5)²]
s = √(11²)
s = 11 unit.
Hence the length of the side formed by the vertices is 11 unit
Pls answer this needs to be turned in at 3:00 pm today
Again, I’m too lazy to do this but if you could help, thanks.
The length of a rectangle is seven less than twice the length of its width, if the area of the rectangle is 15 square meters, find the dimensions of the rectangle.
monkeys at the zoo eat 4 cups of food every day .elephants eat 76 times as much what is the equation?
Answer:
304 cups daily
Step-by-step explanation:
4 cups of food (monkeys) multiplied by 76 (amount elephants eats more)
4 x 76
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Which point represents the outlier in the scatter plot?
OA (2,4)
OB. (5, 10)
OC. (9, 10)
OD. (10,9)
Answer:
(10,9) is the outlier in the scatter graph
The outlier in the scatter plot is (10, 9).
Option D is the correct answer.
What is a scatterplot?A scatterplot is a type of graphical display that is used to represent the relationship between two continuous variables.
In a scatterplot, each point represents the values of the two variables, with one variable being plotted along the x-axis and the other variable being plotted along the y-axis.
The position of each point on the graph represents the values of both variables for that particular observation.
We have,
In a scatterplot, an outlier is a data point that lies far away from the other data points in the plot.
Outliers can be identified as data points that are much higher or lower than the majority of the data points, and they can be seen as points that are separated from the other data points in the plot.
We see that,
Point (10, 9) lies far away from the rest of the points in the scatterplot.
Thus,
The outlier in the scatter plot is (10, 9).
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MARKING BRAINLIEST HELP PLS
Answer:
R(x) = 3.5x
Step-by-step explanation:
In economics, formula for total revenue is;
Total revenue = quantity sold × price.
In this question;
Let he quantity of drinks sold be x
We are told that the selling price is $3.50 per drinks
Since quantity is "x", then total revenue can be said to be R(x)
Thus;
Total revenue; R(x) = x × 3.50
R(x) = 3.5x