Answers
Answer:
[tex]65.1\text{cm}^2[/tex]
Step-by-step explanation:
Area of Rectangle
[tex]A=bh=(8\text{cm})(5\text{cm})=40\text{cm}^2[/tex]
Area of Semicircle
[tex]\displaystyle A=\frac{\pi r^2}{2}=\frac{\pi (4\text{ cm})^2}{2}=8\pi\text{ cm}^2[/tex]
Combined Area
[tex]A_{total}=A_{rectangle}+A_{semicircle}=40\text{cm}^2+8\pi\text{cm}^2\approx65.1\text{ cm}^2[/tex]
Related Questions
A triangular land having area 336 q meter and perimeter 84 meter ha length of an edge 26 meter. Calculate the meaurement of remaining two ide
Answers
A triangular land has area 336 q meter, perimeter 84 meter and length of an edge 26 meter. The lenght of the remaining two sides are both 29 meters long.
Let's call the length of the remaining two sides x.
Since the perimeter of the triangle is 84, then the sum of all three sides is 84, so:
x + x + 26 = 84
Therefore, the sum of the remaining two sides is:
2x = 84 - 26 = 58
And the length of each remaining side is:
x = 58 / 2 = 29 meters required lenght of the remaining two sides.
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A bag of marbles has 1 red, 1 green, and 3 yellow marbles, what is the probability of selecting a yellow and then a yellow without replacement?
Answers
The probability of selecting a yellow and then a yellow without replacement is 3/10.
What is probability?It is the chance of an event to occur from a total number of outcomes.
The formula for probability is given as:
Probability = Number of required events / Total number of outcomes.
We have,
Number of red marbles = 1
Number of green marbles = 1
Number of yellow marbles = 3
Total number of marbles = 5
The probability of selecting a yellow and then a yellow without replacement.
= 3/5 x 2/4
= 6/20
= 3/10
We are using 2/4 since yellow marbles become 2 and the total marbles become 4 when the condition of without replacement is given.
Thus,
The required probability is 3/10.
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You have two coupons for your favorite store. One coupon takes $100 off your purchase. The amount you spend after using this coupon can be represented by the function f ( x ) = x - 100 where x represents the initial cost of your purchase. The other coupon takes 30% off your purchase. The amount you spend after using this coupon can be represented by the function g ( x ) = 0 . 7 x where x represents the initial cost of your purchase. You want to use both coupons at once so the store decides to first take $100 off your purchase, then take 30% off your purchase. Write a function h ( x ) , in terms of the initial cost of your purchase, x , which represents the amount you will spend after both coupons are applied.
Answers
Work Shown:
x = initial cost before any discounts
x-100 = cost after taking off $100
0.7(x-100) = cost after taking 30% off from the previous value
Therefore, we end up with h(x) = 0.7(x-100)
Optionally you could distribute to get h(x) = 0.7x-70, but I think the first version of this is a bit more descriptive.
Help me on this hurry!!! :))))
Answers
Answer: In statistics, the term linear model is used in different ways according to the context.
Step-by-step explanation: The most common occurrence is in connection with regression models and the term is often taken as synonymous with linear regression model. However, the term is also used in time series analysis with a different meaning.
use a maclaurin series in this table to obtain the maclaurin series for the given function. f(x) = arctan(x8) [infinity] n = 0
Answers
The Maclaurin series for the function f(x) = arctan(x8) can be obtained as follows: f(x) = arctan(x8) = ∑ (-1)^n x^(8n+1) / (8n + 1), n = 0 to ∞
The Maclaurin series for arctan(x) is an alternating series, meaning that the signs of the terms alternate between positive and negative. The terms of the series also get smaller in magnitude as n increases, so the series converges rapidly for small values of x.
The Maclaurin series for the function f(x) = arctan(x8) can be obtained as follows: f(x) = arctan(x8) = ∑ (-1)^n x^(8n+1) / (8n + 1), n = 0 to ∞
This Maclaurin series representation of arctan(x8) is useful for approximating the value of the function for small values of x. To obtain more accurate results for larger values of x, one can use more terms from the series or use other numerical methods to calculate arctan(x8).
Therefore, The Maclaurin series for the function f(x) = arctan(x8) can be obtained as follows: f(x) = arctan(x8) = ∑ (-1)^n x^(8n+1) / (8n + 1), n = 0 to ∞
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How to convert micrometers to meters
Answers
1 micrometer equals 1e-6 meters. Dividing by 1000000 will convert your number from micrometers to meters.
Does equate to m?Microns are denoted by the letter "m," while micrometers are denoted by the letter "." 1 m = 1.00. The size of a micron is one millionth of a meter or 1/25,400 of an inch. Microns, a metric unit of length, are frequently used to quantify particles.The micrometre, sometimes referred to as the micron, is a unit of length in the metric system equal to 0.001 mm, or around 0.000039 inch. Its symbol is m.Micrometer A millimeter and a micrometer are separated by a distance of one thousand. There are 1000 micrometers in a millimeter (mm).1 micrometer equals 1e-6 meters. Dividing by 1000000 will convert your number from micrometers to meters.To learn more about micrometers refer to:
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Each year, a physicist measures the remaining radioactivity in a sample. She finds that it reduces by 18% each year. If there was 1.52 g of radioactive material left after 4 years: a. Find the initial quantity of radioactive material.
b. How many more years will it take for the amount of radioactive material to reduce to 0.2 g?
Answers
It will take an additional 7.15 years for the amount of radioactive material to reduce to 0.2 g.
Now, According to the question:
"Information available from the question"
A physicist measures the remaining radioactivity in a sample.
She finds that it reduces by 18% each year.
If there was 1.52 g of radioactive material left after 4 years.
In order to find the initial quality of radioactive material, we will use the formula:
Initial Quality = Final Quantity * (1 - Reduction Rate)^Years
We know that -
The final Quantity is 1.52 g, the reduction rate is 18% (or 0.18), and the number of years is 4.
Initial Quantity = 1.52 g × [tex](1-0.18)^4[/tex]
Initial Quantity = 1.52 g × 0.452
Initial Quantity = 0.68 g
Hence, the initial quantity of the radioactive material is 0.68 g.
b. In order to find how many more years it will take for the amount of radioactive material to reduce to 0.2 g, we will use the formula:
Years = log(Final Quality / Initial Quality) / log(1 - Reduction Rate)
We know that -
the final quality is 0.2 g, the initial quality is 0.68 g, and the reduction rate is 18% (or 0.18).
Years = log(0.2 / 0.0.68) / log(1 - 0.18)
Years = 7.15
Therefore, it will take an additional 7.15 years for the amount of radioactive material to reduce to 0.2 g.
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Erika went to the store. She got a pencil for 16¢ and a tablet for 25¢. She gave the storekeeper 50¢. How much more money did she get back?
Answers
Answer:
9c
Step-by-step explanation:
16+25=41
50-41=9
fnfnx
How many gallon of a 14%-alt olution mut be mixed with 6 gallon of a 25%-alt olution to obtain a 20%-alt olution?
Answers
The no of gallon of a 14%-salt solution must be mixed with 6 gallon of a 25%-salt solution to obtain a 20%-salt solution is 5 gallon
What is Gallon?
The gallon is a volume unit used in imperial and customary units in the United States. There are now three versions in use: the imperial gallon, which is equal to 4.54609 litres
Given
14%-alt solution must be mixed with 6 gallon of a 25%-salt solution to obtain a 20%-salt solution
.14x +.25*6 = .20(x+6)
.14x + 1.5 = .20x + 1.2
.14x - .20x = 1.2 - 1.5
-0.06x = -0.3
x = 5 gallon
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The no of gallon of a 14%-salt solution must be mixed with 6 gallon of a 25%-salt solution to obtain a 20%-salt solution is 5 gallon
What is Gallon?
A gallon is a volume unit used in imperial and customary units in the United States. There are now three versions in use: the imperial gallon, which is equal to 4.54609 litres
Given
14%-alt solution must be mixed with 6 gallon of a 25%-salt solution to obtain a 20%-salt solution
.14x +.25*6 = .20(x+6)
.14x + 1.5 = .20x + 1.2
.14x - .20x = 1.2 - 1.5
-0.06x = -0.3
x = 5 gallon
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Find m Please and thank you I would really appreciate it
Answers
x=6 m<ABD=20 *I think*
Step-by-step explanation:
Find x
plug in your answer
A real etate office manage an apartment complex with 40 unit. When the rent i $780 per month, all 40 unit are occupied. However, when the rent i $852, the average number of occupied unit drop to 36. Aume that the relationhip between the monthly rent p and the demand x i linear. (Note: the term demand refer to the number of occupied unit. )
(a) Write a linear equation giving the demand x in term of the rent p
Answers
The linear demand equation: x = m(p) + b, where x is the number of occupied units, p is the monthly rent, and m and b are constants and the linear demand equation in this case is:
x = -1.04p + 44.16
To find the linear equation, we need to determine the slope (m) and the y-intercept (b). Using the two points provided, we can write a system of equations:
When p = $780, x = 40 units
40 = m($780) + b
When p = $852, x = 36 units
36 = m($852) + b
Solving for m and b, we get:
m = -1.04 and b = 44.16
So, the linear demand equation is:
x = -1.04p + 44.16
This equation represents the inverse relationship between the monthly rent and the demand, where a higher rent results in a lower demand and vice versa.
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Part E
Using the results from part D and the dimensions of the other surfaces, find the surface area of the
outside of the doghouse. Be sure to include the bottom surface in your calculation.
Answers
The figure below is made of 222 rectangular prisms.
What is rectangular prism?A three-dimensional solid form with six faces, including rectangular bases, is called a rectangular prism. A rectangular prism also refers to a cuboid. A cuboid and a rectangular prism have the same cross-section.The top, bottom, and lateral faces of a rectangular prism are all rectangles, and all the pairings of the opposing faces are congruent. A rectangular prism is a three-dimensional structure with six faces.All six of its faces should be rectangles, with equal distances between the opposite faces and the same cross-section along its length.Rectangular prisms have surfaces equal to the sum of their side areas, and their volumes are equal to their length times breadth times height.Completed question :
Part D
Wendell plans to paint the doghouse after it’s built. He wants to know what the surface area of the outside of the doghouse will be. To find the surface area, first break up any composite shapes into rectangles and triangles. Which shape is considered a composite shape? When the shape is decomposed, what are the dimensions of the resulting shapes necessary for finding surface area?
Given data :
The volume of a rectangular prism is given as follows.
Volume of a rectangular prism = length x breadth x height
Therefore, the volume of 222 rectangular
prism
= 2 x 2 x 2
= 8 cubic units
Volume of 222 rectangular prisms = 222
×Volume of a rectangular prism
=222× 8
= 1776 cubic units
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Answer:
The surface area is 5,052 inches
In a car i moving in a traight line with peed 18 km/h. It i topped in 55 by applying brake. Find the peed of car after 2 of applying the brake
Answers
The car travel before stopping is 400 meters
The car's initial speed was 80 m/s.
Acceleration/Deferral = 8 m/s2.
The following is the equation of motion for time t and distance s:
v = u + at
s = ut + 1/2 * a * t ^2
v = final velocity = 0 where
Thus, s = 80 * 10 - 1/2 * 8 * 10 *10
= 800 - 400
= 400 meters were covered before stopping, giving us 0 = 80 - 8 * t t
= 80/8
= 10 seconds.
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The full question:
A car moving a straight highway with a speed of 80 m/s is forced to slow down at a rate of 8 m/s^2. How far does a car travel before stopping?
the numerical value of the standard deviation can never be positive, true or false?
Answers
Answer:
False - The standard deviation is always positive.
The volume of a gas was measured as its temperature was increased from 10 K to 15 K at intervals of 1 K. The volumes were 1. 5, 2. 2, 3. 38, 5. 1, and 7. 6 cm3. Would a linear or exponential function better approximate the data described? Explain why
Answers
A linear function would better approximate the data.
A linear function would better approximate the data described. This is because a linear function has a constant rate of change, while an exponential function has a changing rate of change. For example, if we take the data from 10 K to 15 K, we can calculate the rate of change for each 1 K increase in temperature. The rate of change of volume for a 1 K increase in temperature is calculated by taking the difference between the volumes at the two temperatures and dividing by the difference in the temperatures. With the given data, this would yield a rate of change of 0.7 cm3/K, 0.38 cm3/K, 0.92 cm3/K, 1.4 cm3/K, and 1.6 cm3/K. As we can see, the rate of change does not remain constant, but increases over the temperature range, indicating a nonlinear relationship. Therefore, a linear function would better approximate the data.
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the helix r(t) = cos(πt/2), sin (πt/2),t) intersects the sphere x^2 + y^2 + z^2 = 2 in two points. Find the angle of intersection at each point.
Answers
the helix r(t) = cos(πt/2), sin (πt/2),t) intersects the sphere x^2 + y^2 + z^2 = 2 in two points.
the angle of intersection at each point: θ = cos⁻¹ (√2/√π²+4)
the angle of intersection at each point: α = cos⁻¹(-√2 /(√π² +4))
What is helix?Scientists in the fields of physics, engineering, and biology all do research on helices, which are a significant topic in the theory of curves in differential geometry. Helix (or generic helix) is defined as tangent vector field in 3-dimensional Euclidean space establishing a fixed angle with the curve's direction. A curve for which the tangent forms a constant angle with a fixed line is referred to as a helix or coil.
helix: r(t) = < cos(πt/2), sin(πt/2), t > sphere: x² + y² + z² = 2
put it in the sphere's equation we get:
next, {cos(πt/2)}² + {sin(πt/2)}² + t² = 2
or, 1 + t² = 2
or, t² = 1
or, t = ± 1
thus, points of intersection r(1) = < cos(π/2), sin(π/2), 1 > = < 0, 1, 1 >
r(-1) = < cos(-π/2), sin(-π/2), -1 > = < 0, -1, -1 >
angle intersection is angle between their tangent:
helix:
r(t) = < -π/2 sin(πt/2), π/2 cos(πt/2), 1 >
r'(1) = < -π/2, 0, 1 > .........(i)
r'(-1) = < π/2, 0, 1 > ......... (ii)
sphere:
f = (x² + y² + z² - 2) = 0
Δf = <2x, 2y, 2z>
Δf (0,1,1) = <0,2,2> ................ (iii)
Δf (0,-1,-1) = <0,-2,-2> .............(iv)
angle between (i) and (iii) (at, t = 1)
cosθ = {r'(1) Δf (0,1,1)} / {|r'(1)| |Δf (0,1,1)|]
θ = cos⁻¹ (√2/√π²+4)
angle between (ii) and (iv) (at, t = 1)
cosα = r'(-1)Δf (0,-1,-1) / ||r'(-1)|| ||Δf (0,-1,-1) ||
cos α = -√2 /(√π² +4)
α = cos⁻¹(-√2 /(√π² +4))
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In thi activity, you'll analyze everal gym memberhip plan to help Mateo elect the one that i bet for him. What information do you think will be important in helping Mateo decide?
Answers
Mateo will be able to choose a gym membership plan that best meets his needs and budget.
To help Mateo decide on the best gym membership plan, the following information would be important:
Cost: the price of each plan, including any sign-up fees or monthly fees.Location: the proximity of the gym to Mateo's home or workplace.Amenities: what each gym offers, such as equipment, classes, and hours of operation.Contract terms: the length of the commitment and any cancellation policies.Reputation: the quality of the gym, including customer reviews and ratings.Personal fitness goals: what Mateo wants to achieve through his gym membership, such as weight loss or strength training.Special features: any additional features that may be important to Mateo, such as access to a pool or sauna.By considering these factors, Mateo will be able to choose a gym membership plan that best meets his needs and budget.
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Write the next three terms of the geometric sequence. 81, - 27, 9, - 3, ...
Answers
Answer:
1 - 1/3 1/9
Step-by-step explanation:
Common ratio is
81 * r = - 27
r= - 1/3
-3 * - 1/3 = 1
1 x - 1/3 = -1/3
-1/3 * - 1/3 = 1/9
Find the probability that in 200 tosses of a fair die, we will obtain at most 30 fives. Use the normal distribution to approximate the desired probability.
Answers
Answer:
0.2643
Step-by-step explanation:
Find the probability that in 200 tosses of a fair die, we will obtain at most 30 fives Summary: When a fair die is tossed 200 times, the probability of obtaining at most 30 fives is 0.2643.
A helicopter pilot is paid $506.75 per week. Calculate his equivalent monthly pay
Answers
Answer: $2171.79
Step-by-step explanation:
S2 22/23 Math 6 B (CL),7.20 / 1. Ratios, Proportions, and Perce
X
Find the value that makes the pair of ratios equivalent.
12:42, 2:x
Answers
The value that makes the pair of ratios equivalent is x = 7.
What is cross multiplication?To discover the unknown values in a mathematical equation, we cross multiply the numbers in the equation. The method of cross multiplication is frequently employed to identify the missing variable in an equation. We multiply both the numerator and denominator of the provided expression or fractions.
The given pair of ratios is:
12:42 = 2:x
12 /42 = 2/ x
Using cross multiplication we have:
12x = 2(42)
x = 7
Hence the value that makes the pair of ratios equivalent is x = 7.
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the logarithm is important when working with exponential dynamics. what is the relation between both?
Answers
The logarithm and exponential functions are inverse of each other. The exponential function raises a number to a power and the logarithm gives the power that the number has to be raised to in order to equal a given value. In other words, the exponential function expresses exponential growth, while the logarithm expresses exponential decay.
For example, if y = 2^x, then x = log2(y). This logarithmic relationship is useful in solving exponential problems and understanding exponential dynamics.
In exponential dynamics, logarithms are used to study and model changes that occur at exponential rates, such as population growth or decay, interest rate calculations, and many other real-world applications. The logarithmic relationship helps to simplify the exponential equations and make them easier to work with.
In summary, the logarithm and exponential functions are important in understanding exponential dynamics because the logarithmic relationship helps to simplify exponential problems and make them easier to solve.
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in slope intercept form
y+3/5=-4(x-1/2)
Answers
Answer:
y = -4 + 1.4
Step-by-step explanation:
y+3/5 = -4(x-1/2)
y + 3/5 = -4x + 2
y + 0.6 = -4x + 2
y = -4 + 1.4
Can anyone help me solve this problem step by step?
Answers
) b. estimate the circumference, in centimeters, of a circle with a diameter of 4.50 cm. circumference (cm) 14.2 saved (1pts) c. estimate the diameter, in centimeters, of a circle with a circumference of 3.94 inches. diameter (cm)
Answers
The circumference of the circle with the diagram of 2.25 cm is 14.13 cm.
What is circumference?The circumference, also known as the length of a circle, is its circumference. By using the radius or diameter, we can calculate the circumference of a circle.
An irregular plane figure is a circle. Every point on the circle is equally distant from the circle's fixed centre. It has a radius of 1, making it a 2D shape. The Latin word "circulus," which means "small ring," is the source of the English word "circle."
Given that the diameter of the circle is 4.50 cm. The circumference of the circle is calculated as:-
C = 2πr
C = 2 x π x 2.25
C = 14.13 cm
Therefore, the circumference of the circle with the diagram of 2.25 cm is 14.13 cm.
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Her older sister is making similar wall hangings with a diameter that is 134 inches longer than Poppy's. How much more wire did her sister use per wall hanging than Poppy? Use 3.14 for π. Write your answer as a decimal rounded to the nearest hundredth.
Answers
Sister uses 420.76 inches more wire per wall than Poppy.
What is a circle?A circle is a two-dimensional figure with a radius and circumference of 2πr.
We have,
Poppy's diameter = d
Older sister diameter.
D = d + 134
Now,
The circumference of the wall hangings.
= 2πr
= πd
Now,
The circumference of the wall hangings by the older sister.
= πD
= π (d + 134)
The circumference of the wall hangings by the Poppy.
= πd
Now,
The difference between the length of the wire.
= π (d + 134) - πd
= πd + π x 134 - πd
= 3.14 x 134
= 420.76 inches.
Thus,
Sister uses 420.76 inches more wire.
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Simplify: (-7x - 5) - (-9x2 + 8x + 7). Choose the standard form of the answer.
A. -16x2 – 15x – 12
B. 9x2 - 15x - 12
O
C. -9x2 + x-2
D. 9x2 + 56x – 35
Answers
The standard form from (-7x - 5) - (-9[tex]x^{2}[/tex] + 8x + 7) is B) 9[tex]x^{2}[/tex] - 15x - 12.
This is a quadratic equation. To simplify the equation, we need to arrange the equation to be standard form or quadratic equation which is
a[tex]x^{2}[/tex] + bx + c
(-7x - 5) - (-9[tex]x^{2}[/tex] + 8x + 7) = -7x -5 + 9[tex]x^{2}[/tex] - 8x -7
Group of a[tex]x^{2}[/tex] --> It will be 9[tex]x^{2}[/tex]
Group of bx ---> It will be -7x-8x = -15x
Group of c ---> It will be -5-7 = -12
We just combine the group into standard equation
(-7x - 5) - (-9[tex]x^{2}[/tex] + 8x + 7) = -7x -5 + 9[tex]x^{2}[/tex] - 8x -7
= 9[tex]x^{2}[/tex] -15x - 12
So the simplification of equation (-7x - 5) - (-9[tex]x^{2}[/tex] + 8x + 7) is 9[tex]x^{2}[/tex] - 15x - 12, or from the answer, it's B)
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the sum of lukes age and gibsons age is 73 if lukes age is five years less than twice gibsons age how old is luke
Answers
Lukes's age is 47
Gibson's age is 26
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Lukes's age = x
Gibson's age = y
Now,
x + y = 73 ______(1)
x = 2y - 5
Substituting in (1)
2y - 5 + y = 73
3y = 78
y = 26
Now,
x = 2 x 26 - 5
x = 52 - 5
x = 47
Thus,
Lukes's age = 47
Gibson's age = 26
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Pls hurry !!
Which of the following represents the total area of the figure? 16.425 in² 20.775 in² 24.15 in² 28.5 in²
Answers
Answer: A) 16.425 in^2.
Step-by-step explanation: The figure is broken down, so let's find the area of the rectangle first. We are given 4 in and 2.3 in, which can be multiplied to get 9.2 in. Now, we need to find the area of the two triangles, but let's start with the one to the left. The area of a triangle is b x h x 1/2. 2.3 in x 2.5 in is 5.75 in, but we need to multiply that by 1/2 which is 2.875 in. Finally, we can find the area of the bottom triangle by using the same formula. 3 in x 2.9 in is 8.7 in, but we need to multiply it by 1/2, which is 4.35 in. Now, all we need to do is add all the areas we found together to get the total area of the figure. 9.2 in + 2.875 in + 4.35 in is 16.425 in^2, which means that option A is your answer.
Let me know if this is right! :)
Answer:
16.425 in²
Step-by-step explanation:
total area of the figure= area of (left triangle+ rectangle+ down triangle)
=1/2*base*height+length*breath+ 1/2*base*height
=1/2*2.5*2.3+4*2.3+1/2*3*(5.2-2.3)
=16.425 in²
complete the conversion from 24.1 kg of body weight to milligrams (mg) of cephalexin administered per day.
Answers
The formula is also used to ensure that the patient is not overdosed or underdosed ,24.1 kg of body weight, 723 mg of cephalexin should be administered per day.
The conversion from 24.1 kg of body weight to milligrams (mg) of cephalexin administered per day can be calculated using the following formula:
Dose (mg) = Desired dose (mg/kg) x Body Weight (kg).
In this case, the Desired dose is 30 mg/kg. So, to calculate the total dose of cephalexin per day:
Dose (mg) = 30 mg/kg x 24.1 kg
Dose (mg) = 723 mg/day
Thus, for 24.1 kg of body weight, 723 mg of cephalexin should be administered per day.
The formula used in this calculation is a standard formula used to calculate the dose of medication to be administered to a patient based on their body weight. The formula is used to ensure that the patient receives the appropriate dosage of medication and that the medication is safe and effective. The formula is also used to ensure that the patient is not overdosed or underdosed, which can cause side effects or other medical problems.
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