The 99% confidence interval for how much the drug will lower a typical patient's systolic blood pressure is approximately (40.6, 43.8).
How to determine the confidence intervalThe formula for calculating the confidence interval is:
Confidence Interval = Sample Mean ± (Critical Value * Standard Error)
we need to find the critical value associated with a 99% confidence level. Since the sample size is large (n = 309), we can use the z-distribution.
The critical value for a 99% confidence level is approximately 2.576.
Next, we need to calculate the standard error using the formula:
Standard Error = Standard Deviation / √(Sample Size)
Standard Error = 10.7 / √309
Now we can calculate the confidence interval:
Confidence Interval = 42.2 ± (2.576 * (10.7 / √309))
Calculating the values:
Confidence Interval = 42.2 ± (2.576 * 0.609)
Confidence Interval ≈ 42.2 ± 1.570
Therefore, the 99% confidence interval for how much the drug will lower a typical patient's systolic blood pressure is approximately (40.6, 43.8).
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a) Find f(t).
ℒ−1
e−????s
s2 + 1
f(t)=? + (?) (t - ?)
The value of function, f(t) for L⁻¹ ( e−s /(s²+ 1)) is equals to sin( t - π ) u(t-π) .
The Laplace transform is the essential term of the given derivative function. Moreover, it comes with a real variable (t) for converting into complex function with variable (s). For ‘t’ ≥ 0, let ‘f(t)’ be given, the Laplace transform of ‘f(t)’, denoted by 'L{f(t)}' or ‘F(s)’ is definable with the equation:
\( L(f(t)) = F(s) = ₀∫^{ \infty } e⁻ˢᵗ f(t)dt\)
we have L⁻¹ ( e−s /(s²+ 1))
Now, L⁻¹ (1 /(s²+ 1)) = sin(t)
so, L⁻¹ ( e−s /(s²+ 1)) = sin( t - π ) u(t-π)
where u(t-π) is unit of step function.
so, required function f(t) is sin( t - π ) u(t-π).
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Complete question:
Find f(t) ℒ−1 (e−s /(s²+ 1))
f(t)=? + (?) (t - ?)
Simplify (-x+3)+(-11x2-8+ 12x)
A Store owners offers a discount of 20% off the regular price of all jackets. Jessica has a coupon that gives her an additional 5% off the discount price. The original price of jacket Jessica buys is $84. What is the price of the jacket after the discount and Jessica coupon?
Answer:
$63
Step-by-step explanation:
The store is 20% off, Jessica has a coupon that is 5% off add that together and it's 25% off. $84 - 25% = $63
Use the diagram to find the value of x
The arc angle x in the circle is 38 degrees.
How to find the angle x in the circle?An inscribed angle in a circle is formed by two chords that have a common end point on the circle.
The inscribed angle A is half of the arc angle x of the circle.
Therefore,
51 + 53 + ∠A = 180
∠A = 180 - 51 - 53
∠A = 76 degrees
Therefore,
x = 1 / 2∠A
Hence,
x = 1 / 2 × 76
x = 38 degrees
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Use a ratio box to solve this problem. a. The 1/12 scale model of the rocket stood 48 inches high. What was the height of the actual rocket?
The actual height of the rocket is 576 inches.
What is cross multiply?Cross multiply is to multiply the numerator of each side of a proportion by the denominator of the other side.
A ratio box is a visual tool that can be used to solve proportion problems. To use a ratio box to solve this problem, we can set up the following ratio:
1/12 : 48 inches : : x : actual height
where x is the unknown value that we want to find.
To solve for x, we can cross-multiply and simplify the equation:
1/12 * actual height = 48 inches
actual height = 48 inches * 12/1
actual height = 576 inches
So the actual height of the rocket is 576 inches.
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whats an expression for the bracelets?
An expression for the number of bracelets of n beads, where rotations.
Whats an expression for the bracelets?
In mathematics, the term "bracelets" can refer to a type of combinatorial object, specifically, a set of beads arranged in a circular pattern. An expression for the number of bracelets of n beads, where rotations and reflections are considered identical, can be given as follows:
B(n) = (1/n) * (2raise to the power (n-1) + Σ(d|n, d<n) μ((n/d)) * 2 raise to the power ((n/d)-1))
Here, B(n) represents the number of distinct bracelets of n beads, Σ denotes the summation, d|n denotes "d divides n", and μ is the Möbius function.
The first term in the expression, (1/n) * (2 raise to the power (n-1)), represents the number of bracelets that are invariant under rotation. The second term takes into account the bracelets that are not invariant under rotation, but are invariant under reflection, and involves the Möbius function.
This expression can be used to calculate the number of bracelets for any value of n, by plugging in the value of n and evaluating the expression.
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Twenty-four is ___% of 80
Answer:
30
Step-by-step explanation:
Answer:
30
Step-by-step explanation:
i really don't have a method for this, just try a number you think is close, go up, or down depending on the number
what is the value of 3cubed
Answer:
27
Step-by-step explanation:
\(3^{3}\) is basically just multiplying the number 3, three times. So 3x3x3. 3x3 is 9, and when you multiply 3 more, it is 27.
Answer:
Step-by-step explanation: 3, because when 3 is cubed you get 27.
can i get help with this please?
Answer:
1. (any number less than 10) < 10
2. 520 (division)
520
➗ 2
260
3. (any number less than 3 *1 or 2*) < 3
4. (any number greater than 1) > 1
5. (Subtraction - A number subtracting two and the result is less than 10) < 10
Step-by-step explanation:
1. The symbol "<" shows greater than. It is facing the number "10",
So, we need to get any number below 10. As example: 1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 7 ; 8 ; 9. The numbers I mentioned there are what you can use for question 1.
-----------------------------------------------------------------------------------------------------------------
2. The number 520' is what I find to be multi-result but I would do division. Number 520 is part of the addition, subtraction, multiplication, and division but I am doing division.
Divison:
520
➗ 2
260
Multiplication:
260
x 2
520
Addition:
500
+ 20
520
Subtraction:
550
- 30
520
These are the examples that you can try for number 2.
-----------------------------------------------------------------------------------------------------------------
3. First, you can see that there is the greater symbol here again, "<".
But this time, it's pointing to 3. Which means the number is less than 3.
The only numbers that are less than 3 is 1 and 2 so those are the 2 options you can choose.
-----------------------------------------------------------------------------------------------------------------
4. This time, the symbol is less. It's now pointing at 1, so you can pick any number that is greater than 1.
Example:
5 > 1
Like that! You can pick any number that is greater than 1 for this question!
-----------------------------------------------------------------------------------------------------------------
5. the equation "-2 < 10" is about a number subtracting 2 but than the results come in being less than 10. Since we have spotted the greater symbol as "<", and the subtraction symbol as "-".
Now, first we find a number that can subtract 2 but less than 10 in the result.
The options we have are:
1. 2 (2-2=0 ; 0 < 10)
2. 3 (3-2=1 ; 1 < 10 )
3. 4 (4-2=2 ; 2 < 10 )
4. 5 (5-2=3 ; 3 < 10 )
And so on until you reach number 9 as the result!
-----------------------------------------------------------------------------------------------------------------
Hope this helped you! I tried my best to help you. But have a good day!
The formula F(C) = 9/5C + 32 calculates the temperature in degrees Fahrenheit, given a temperature in degrees Celsius.
You can find an equation for the temperature in degrees Celsius for a given temperature in degrees Fahrenheit by finding the function’s
The function C(F) to calculate the temperature in degrees Celsius for a given temperature in degrees Fahrenheit will be equal to \([(\frac{5}{9}F) -\frac{160}{9}]\)
As per the question statement, the formula [F(C) = 9/5C + 32] is to calculate the temperature in degrees Fahrenheit for a given a temperature in degrees Celsius.
We are required to determine the function to calculate the temperature in degrees Celsius for a given temperature in degrees Fahrenheit.
Since, [F(C) = 9/5C + 32],
\(or, [F = \frac{9}{5} C + 32]\\or, (F-32)= \frac{9}{5} C\\or, \frac{9}{5} C=(F-32)\\or,C=\frac{5}{9} (F-32)\\or,C=\frac{5}{9}F-\frac{160}{9}\)
That is, the function to calculate the temperature in degrees Celsius for a given temperature in degrees Fahrenheit is \(C(F)=[(\frac{5}{9}F) -\frac{160}{9}]\).
Function: In Mathematics, a function is an operator, which when fed with a input, will perform a specific set of operations on the input and then produce a certain output.To learn more about Functions, click on the link below.
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Answer:
inverse
C(F)=5/9F-106/9
check all
Step-by-step explanation:
23
Help me with answer asp
Answer:
picture #1 - 50.27 square units
picture #2 - 113.10 square units
picture #3 - 380.13 square units
Step-by-step explanation:
picture #1 - area = πr^2 -> π*4^2 = 50.27 square units
picture #2 - area = πr^2 -> π*6^2 = 113.10
picture #3 - area = πr^2 -> π*11^2 = 380.13
Can someone help me pleaseeee
Answer:
B
Step-by-step explanation:
More math help, please
Answer:
15) Quadratic Function : The 3x is squared
16) Linear Function : It is a straight line
17) Quadratic Function : The line is a U shape
18) Linear Function : There is one y value for every x value, and the points form a straight line
Step-by-step explanation:
Done
8,20,50 find the 10th term
Starting off we just need to divide the numbers by each other to see how they are increasing.
20÷8 = 2.5
50÷20 = 2.5
Seeing that our answer is 2.5 we need to multiply several times to reach our 10th term.
8, 20, 50, 125, 312.5, 781.25, 1953.125, 4882.8125, 12207.03125, 30517.578125
Meaning the 10th term is 30517.578125 or when rounded to a whole number 30,518
Checking
To check if the term is right you just need to keep dividing the numbers until your back at the starting number.
ex.
30517.578125 ÷ 2.5 = 12207.03125 (Which is the 9th term)
Six times the sum of a number and negative one is the same as two more than eight times the number
Answer:-5/4
Step-by-step explanation:
A square has an area of 150 square centimeters. Which of the
following measures is closest to the length of one of its sides?
11.8 cm
B
12.2 cm
C 12.7 cm
D
13.5 cm
Answer:
C) 12.2 cm
Step-by-step explanation:
To find the area of a square, you multiply length and width, which for a square, are the same. So to find the length of one of its sides, you have to take the square root of the area.
\(L^{2} = 150\\\\L=\sqrt{150} \\L= 12.2\\\)
Determine whether the triangles are similar or not, if so, determine if it is by AA-, SSS-, or SAS-
Answer and Step-by-step explanation:
These triangles are similar by AA......
This is because the point that connects the triangles together have the same angle value. We also see that they both have 90 degrees as an angle, making it similar by AA~.
The other angle that shows the 38 in it is 52, so it is definitely proven by AA~.
#teamtrees #PAW (Plant And Water)
An online retailer receives 5% of the cost of all sales made on their website. How much does the retailer make on a sale of $80?
The online retailer will make $4 on a sale of $80. This is calculated by multiplying the cost of the sale ($80) by the retailer's percentage (5%).
The first step in calculating the retailer's profit is to identify the cost of the sale. In this case, the cost of the sale is $80.
The next step is to identify the percentage of the cost that the retailer will receive. In this case, the retailer will receive 5% of the cost of the sale.
The third step is to calculate the retailer's profit. This can be done by multiplying the cost of the sale ($80) by the retailer's percentage (5%). This calculation results in $4, which is the retailer's profit for this sale. Hence, the online retailer will make $4 on a sale of $80.
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Evaluate the expression if a =
- 2, b = -3, c = 2, x = 2.1, y = 3, and z = - 4.2.
4a - |3b + 2cl
Answer:
-13
Step-by-step explanation:
expression =4a-|3b+2c|
subtitute all values in the expression:
=4(-2) -|3(-3)+2(2)|
=-8-|-9+4|
=-8-|-5|
=-8-(5)
=-8-5
=-13
Note:if you need to ask any question please let me know.
The value of the expression from the variables is -13
How to evaluate the expression from the variablesFrom the question, we have the following parameters that can be used in our computation:
4a - |3b + 2cl
Also, we have
a = - 2, b = -3, c = 2, x = 2.1, y = 3, and z = - 4.2.
substitute the known values in the above equation, so, we have the following representation
4a - |3b + 2cl = 4 * -2 - |3 * -3 + 2 * 2|
Evaluate
4a - |3b + 2cl = -13
Hence, the expression from the variables is -13
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Find the size of the angles marked by letters in the following diagram.
Answer:
x = 52
y = 19
Step-by-step explanation:
The degree measure of a straight line is (180) degrees. One can use this to find the measure of the angle that is adjacent to the angle with a measure of (142) degrees. Form an equation and solve for the unknown,
142 + (unknown angle) = 180
unknown angle = 38
The inscribed angle theorem states that twice the measure of an angle with its vertex of the circumference (outer edge) of a circle is equal to the measure of the surrounding arc. Therefore, one can state the following:
(2)(unknown angle) = (surrounding arc)
(2)(38) = (surrounding arc)
76 = surrounding arc
The central angles theorem states that the measure of an angle whose vertex is the center of the circle is equal to the measure of the surrounding arc. Therefore, one can state the following:
m<O = (surrounding arc)
m<O = 76
The radius is the distance from the center of the circle to the circumference of the circle. All radii in a circle are congrunet. Therefore the triangle with angle (x) and vertex (O) is an isosceles triangle, as two of its sides are radii, and are thus congruent. One property of an isosceles triangle is the base angles theorem. This theorem states that the angles opposite the congruent sides in an isosceles triangle are congruent. Moreover, the sum of angles in any triangle is (180) degrees. Therefore, one can make the following statement:
m<O + x + x = 180
76 + 2x = 180
x = 52
Finally, one can use the property that the sum of angles in any triangle is (180) degrees to make the following statement:
(x + 19) + (x + y) + (38) = 180
52 + 19 + 52 + y + 38 = 180
161 + y = 180
y = 19
x=52°
y=19°
Answer:
Solution given:
<OCA=19°[base angle of isosceles triangle]
Since ∆AOC is similar to ∆ BOC
y=19°[corresponding angle of a similar triangle are equal]
<OAB=<OBA=x[base angle of isosceles triangle]
again
<A+<B=180°[exterior angle of a triangle is equal to the sum of two opposite interior angle]
x+19+x+19=142°
2x=142°-38°
x=104/2
x=52°
PLS HELPPP 15 PTS!!!!!!!!!!!!
Answer: 12.2
Step-by-step explanation:
PLEASE HELP ME I WILL GIVE BRAINLIEST!!
Which row of Pascal's Triangle should you use to expand the binomial (a + b)^4?
Answer:
Step-by-step explanation:
a + b)^6 will have 7 terms so you want row 6 of the triangle 1 6 15 20 15 6 1
so (a + b)^6 = a^6 + 6a^(5)b + 15a^(4)b^2 + 20a^(3)b^3 + 15a^(2)b^4 + 6ab^5 + b^6
given a = d and b = -5y
∴ (d − 5y)^6 = d^6 + 6d^(5)(-5y) + 15d^(4)(-5y)^2 + 20d^(3)(-5y)^3 + 15d^(2)(-5y)^4 +
HELP
what is 3^9 x 3^5?
Answer:
\(3^{14}\) or 4,782,969
Step-by-step explanation:
Note that the base are the same (3). In this case, when you are multiplying, add the powers together:
\(3^9 * 3^5 = 3^{9 + 5} = 3^{14}\).
~
The length on the scale drawing and the actual length of the patio
can be written as a
of 1:2.
The phrase "a of 1:2" refers to the scale factor between the length of the scale drawing and the actual length of the patio.
It means that the length on the scale drawing is half of the actual length of the patio.
The scale is used to represent the object's size proportionally.
The scale shows the ratio of the size of the drawing to the actual size of the object.
A scale of 1:2 means that one unit on the drawing represents two units in real life.
The patio, if the length on the scale drawing and the actual length of the patio can be written as a ratio of 1:2, it means that the length of the patio on the drawing is half the length of the actual patio.
This scale can be used to determine the actual length of the patio if the length on the scale drawing is known.
If the length of the patio on the scale drawing is 4 inches, then the actual length of the patio can be found by multiplying the length on the drawing by the scale factor:
Actual length of the patio = 4 inches × 2 = 8 inches
Conversely, if the actual length of the patio is known, the length on the scale drawing can be found by dividing the actual length by the scale factor:
Length on the scale drawing = Actual length of the patio / 2
The actual length of the patio is 16 feet, then the length on the scale drawing would be:
Length on the scale drawing = 16 feet / 2 = 8 feet
The scale ratio of 1:2 allows us to represent the actual size of the patio in a smaller size on a drawing, while maintaining the correct proportions. This can be useful for architectural plans, blueprints, or any other situation where a representation of an object needs to be made in a smaller size.
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f(t)=e5t+4t+7ln(t2+3c)+te-1+5e6
where c is constant
The function f(t) is defined as e raised to the power 5t plus 4t plus the natural logarithm of the quantity t squared plus 3 times the constant c, raised to the power of 7, plus t times e raised to the power of -1 plus 5 times e raised to the power of 6.
Given a function:
f(t)=e5t+4t+7ln(t2+3c)+te-1+5e6
where c is a constant.
The solution to the question is shown below.
Step 1: We have given a function:
f(t)=e5t+4t+7ln(t2+3c)+te-1+5e6
We have to find the number of words we have to write to express this function in words.
Step 2: Solution
f(t) = et5+4t + ln(t²+3c)⁷ +te-1+5e⁶
Where,
et5+4t = exponential function
ln(t²+3c)⁷ = natural logarithmic function
te-1 = linear function
e⁶ = exponential function
Therefore, f(t) can be expressed in words as:
The function f(t) is defined as e raised to the power 5t plus 4t plus the natural logarithm of the quantity t squared plus 3 times the constant c, raised to the power of 7, plus t times e raised to the power of -1 plus 5 times e raised to the power of 6.
Step 3: Conclusion
Hence, the function f(t) can be expressed in words with:The function f(t) is defined as e raised to the power 5t plus 4t plus the natural logarithm of the quantity t squared plus 3 times the constant c, raised to the power of 7, plus t times e raised to the power of -1 plus 5 times e raised to the power of 6.
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roatate triangle p 90* clockwise about the point (2,-1)
Answer:
hope this helps
Step-by-step explanation:
Find In ∫∫(xy.z) dV, where is the region bounded by the coordinate planes and 2 +y+z= 1. and f(x, y, z) = 5r - 3y.
The value of the given integral is 15/4 - 5z.The given integral represents the volume integral of the function f(x,y,z) = 5r - 3y over the region R bounded by the coordinate planes and the plane 2 + y + z = 1.
To evaluate the given integral, we need to determine the limits of integration for x, y, and z. The region R is bounded by the coordinate planes, so the limits of integration for x, y, and z are simply 0 to 1.
The plane 2 + y + z = 1 intersects the coordinate planes at the points (1,0,0), (0,1,0), and (0,0,-1), so this plane divides the region R into two parts. To determine the limits of integration for z, we need to find the equation of the plane in terms of z:
2 + y + z = 1
y + z = -1
So, the limits of integration for z are -1 to 0 for the part of R below the plane, and 0 to 1 for the part of R above the plane.
Now we can write the given integral as:
∫∫∫R (5x - 3y) dV
= ∫0^1 ∫0^1 ∫-1^0 (5x - 3y) dz dy dx + ∫0^1 ∫0^1 ∫0^1 (5x - 3y) dz dy dx
= ∫0^1 ∫0^1 [-z(5x - 3y)]|z=-1^0 dy dx + ∫0^1 ∫0^1 [(1-z)(5x - 3y)]|z=0^1 dy dx
= ∫0^1 ∫0^1 (3y - 5x) dy dx + ∫0^1 ∫0^1 (4-5z)(5x - 3y) dy dx
= ∫0^1 ∫0^1 (3y - 5x) dy dx + ∫0^1 [(4-5z)(5/2 - 3)] dx
= ∫0^1 ∫0^1 (3y - 5x) dy dx + 5/2 ∫0^1 (4-5z) dx
= ∫0^1 ∫0^1 (3y - 5x) dy dx + 5/2 (4-5z)
= ∫0^1 [-5x/2 + (3/2)y]|y=0^1 dx + 5/2 (4-5z)
= ∫0^1 (-5x/2 + 3/2) dx + 5/2 (4-5z)
= [-5x^2/4 + (3/2)x]|x=0^1 + 5/2 (4-5z)
= -5/4 + 3/2 + 5/2 (4-5z)
= 15/4 - 5z
Therefore, the value of the given integral is 15/4 - 5z.
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Determine the simple interest.
Principal = $7,600
Rate= 7%
Time= 9 months
The simple interest on a principal of $7,600 at a rate of 7% for 9 months is $399.
To determine the simple interest, we can use the formula:
Simple Interest = Principal x Rate x Time
Principal = $7,600
Rate = 7% (which can be expressed as 0.07 in decimal form)
Time = 9 months (which can be expressed as 9/12 or 0.75 in years)
Let's substitute these values into the formula:
Simple Interest = $7,600 x 0.07 x 0.75
Calculating this expression, we have:
Simple Interest = $7,600 x 0.0525
Simple Interest = $399
Therefore, the simple interest on a principal of $7,600 at a rate of 7% for 9 months is $399.
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A price of a toy usually costing £50 is increased to £65
work out the percentage increase
Answer:
15/50×100=30%
Step-by-step explanation:
At the bottom of a mountain, a ski lift starts four feet above the ground. At the top of the mountain, the lift is 1356 feet higher. If the lift ascends 1 foot for every 4 feet it travels west, how far west of the starting position is the lift at the top of the mountain?
PLEASE HELP ASAP ill be very thankful
Answer:
5,424 ft.
Step-by-step explanation:
For every 1 foot the ski lift goes up by, it travels west 4 feet. So, because we know that the lift will be 1,356 feet higher at the top of the mountain, all we have to do is multiple 1,356 by 4.
1,356 * 4 = 5,424 ft.
I hope this helps. :)