Find parametric equations for the line that is tangent to the given curve at the given parameter value. r(t) = (2t^2) i + (3t + 4) j + (2t^3) k, t = t_0 = 3 What is the standard parameterization for the tangent line? x= y= z =
The standard parameterization for the tangent line is x = 12t + 18 , y = 3t + 13 , z = 54t + 54
Equation of this type is known as a parametric equation; it uses an independent variable known as a parameter (commonly represented by t) and dependent variables that are defined as continuous functions of the parameter and independent of other variables.
Given that,
Given that, t = t0 = 3, I + (3t + 4) j + (2t 3) k
In order to get the tangent line to the curve at t=3, (x, y, z) = 18, 13, and 54,
r'(t) = 4t, 3, > and r'(t=3) = 12, 3, 54>. (18, 13, 54)
finally,
x = 12t + 18
y = 3t + 13
z = 54t + 54
The tangent line's usual parameterization is as follows:
x=12t+18, y=3t+13, and z=54t+54
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What is the major goal of secondary wastewater treatment? 1) Removing nutrients ii) Removing large particles iii) Removing organics iv) Disinfection
While secondary wastewater treatment may also contribute to the removal of nutrients and disinfection, its main goal is to remove organic compounds from the wastewater. This is achieved through the utilization of different treatment methods that promote the decomposition and conversion of organic matter into environmentally safe forms.
Secondary wastewater treatment is a process that follows primary treatment and focuses on the removal of dissolved and colloidal organic matter, as well as the reduction of nutrients and pathogens. The primary objective of secondary treatment is to break down the organic compounds present in wastewater and convert them into stable forms, such as carbon dioxide and water, which are less harmful to the environment.
various treatment methods are commonly used in secondary wastewater treatment, such as biological processes (activated sludge, trickling filters), physical processes (membrane filtration), and chemical processes (flocculation, coagulation).
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z is a standard normal random variable. the p(z ≥ 2.11) equals
The area of the tail is 1 minus the area to the left of 2.11. So, you can look up the area to the left of 2.11 in the z-table, which is 0.9823, and subtract it from 1 to get the area of the tail, which is 0.0177.
The p(z ≥ 2.11) is 0.0177.
To calculate the p(z ≥ 2.11), you can use a z-table to look up the z-score. This z-score falls in the area of the tail of the distribution, which means it is the area to the right of 2.11.
The area of the tail is 1 minus the area to the left of 2.11. So, you can look up the area to the left of 2.11 in the z-table, which is 0.9823, and subtract it from 1 to get the area of the tail, which is 0.0177.
The p(z ≥ 2.11) is 0.0177.
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if a =76 and b=287
what is( a+b/2)/a-bx2
The value of the given expression (a + b/2)/a - bx² = 219.5/(76 - 287x²).
What is an expression?An expression is the combination of variables, coefficients, and constants that are separated by an arithmetic operator(+, -, ...).
Calculation:The given expression is
(a + b/2)/a - bx²
It is given that a = 76 and b = 287
On substituting,
(a + b/2)/a - bx² = (76 + 287/2)/76 - 287x²
⇒ (76 + 143.5)/76 - 287x²
⇒ 219.5/(76 - 287x²)
Therefore, the given expression for the values a = 76 and b = 287 is 219.5/(76 - 287x²).
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Find the surface area of the cylinder.
PLS PLS PLS PLS PLS PLS PLS PLS PLS PLS HELP THIS IS SO CONFUSING !!
Answer:
376.990444... \(cm^{2}\) or 376.99 \(cm^{2}\) ( It says in terms of π so your answer is 120 π, sorry :) )
Hope this helps!
Step-by-step explanation:
To find the surface area of a cylinder you need to find the area of the 2 circles and the area of the rectangle.
The area of a circle is \(\pi\) × \(r^{2}\)
So, the area of one circle is \(\pi\) × 36 = 113.097335529...
113.097 × 2 = 226.194
The area of the rectangle is 4 × 2\(\pi r\) ( circumference of the circle is the rectangle's length )
The area of the rectangle is 4 × 12\(\pi\) = 4 × 37.699111... = 150.796444...
Add the area of the rectangle with the area of the 2 circles to get 376.990444... \(cm^{2}\).
help asap if you can pls an thank u!!!!!!!
The value of angle S is 53°
What is exterior angle theorem?Exterior angle theorem states that the measure of an exterior angle of a triangle is equal to the sum of two remote interior angles.
With this theorem we can say that
7x+2 = 4x+13+19
collecting like terms
7x -4x = 13+19-2
3x = 30
divide both sides by 3
x = 30/3
x = 10
Since x = 10
angle S = 4x+13
angle S = 4(10) +13
= 40+13
= 53°
Therefore the measure of angle S is 53°
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20 POINTS.
Solve 4x+2 = 12 for x using the change of base formula
−1. 442114
−0. 207519
2. 55789
3. 79248
Solution to the equation 4x+2 = 12 using the change of base formula is x = 1.442114.
The given equation is 4x+2 = 12.
To solve for x using the change of base formula, we need to isolate x on one side of the equation. We start subtracting 2 from LHS and RHS:
4x+2-2 = 12-2
4x = 10
Next, we use the change of base formula, which states log base a of b is equal to log base c of b divided by log base c of a. In this case, we want to find x, which is the exponent that 4 is raised to in order to get 10.
Rewrite equation:
x = log base 4 of 10
Use the change of base formula, we can present this as:
x = \(log base 10 of 10 / log base 10 of 4\)
Simplifying:
x = 1.442114
Solution to the equation 4x+2 = 12 using the change of base formula is x = 1.442114.
In conclusion, using the change of base formula, the answer to the equation 4x+2 = 12 is roughly 1.442114. This method can be used to solve a variety of problems in the sciences, engineering, and financial sectors, as well as exponential and logarithmic equations.
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How many units is -14 away from 0
Answer:
14
Step-by-step explanation:
|-14|=14
what is the volume of the cube if one side is equal to 6 cm
Answer:
The volume is 216 cm³
Step-by-step explanation:
Hope this helped Mark BRAINLEST!!!
Evaluate A2 for A = -4
Answer:
16
Step-by-step explanation:
A² for A = -4
= (-4)²
= (-4) × (-4)
= 16
Answer:
A² = 16
Step-by-step explanation:
Substitute A = - 4 into the expression
A² = (- 4)² = - 4 × - 4 = 16
brainliest for correct answer
Answer:
m=2
Step-by-step explanation:
(0,-4) -> (0,4)
(1,-2) -> (-1, 2)
2-4/-1-0
m= -2/-1
m= 2
In circle I I J = 9 and the area of shaded sector = 36π. Find m ∠JIK.
The measure of the central angle m ∠JIK is 160°.
Given that the circle I, in which IJ is the radius of 9 units, the area of shaded sector = 36π, we need to find the m ∠JIK, the central angle.
Area of the sector = central angle / 360° × π × radius²
∴ 36π = m ∠JIK / 360° × π × 9²
m ∠JIK = 360° × 4 / 9
m ∠JIK = 160°
Hence, the measure of the central angle m ∠JIK is 160°.
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Graw Week 8-FAST Practice (RM G6 FL)
Hal
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Question 9 of 10
Which situation(s) can be represented by the expression x-2 where x represents the original price (in dollars)?
Select all that apply.
A) $2 less than three-quarters of the original price
✔B) $2 less than the original price
c) $2 more than three-quarters of the original price
D) $2 decreased by three-quarters of the original price
E) Three-quarters of the original price decreased by $2
Next Question
Check Answer
Done and
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The situation that can be represented by the expression x-2 where x represents the original price (in dollars) is B) $2 less than the original price
How to explain the expressionThe value of x-2 symbolizes a price, subtracted with two dollars. However, if "$2 less than three-quarters of the original price" is to be written and represented through an expression, it becomes (3/4)x - 2 instead of x-2.
.
Thus, showing that this situation cannot be indicated by x-2. On the other hand, " $2 less than the original price" can be rightfully denoted using the expression x-2. It fulfills the task effectively and accurately represents the given scenario.
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What is the answer to that question ?
Answer:
C
BC=35in
Step-by-step explanation:
21/3=7
multiply 5 by 7
5 X 7=35
Find b if a is a constant such that 3ax - 8 b = 4x + 6a for all values of x
Answer:
b = -1
Step-by-step explanation:
if you did not skip anything from the original question (the space in "8 b" is suspicious), we have
3ax - 8b = 4x + 6a
to be true for all x, the variable parts of both sides must be equal, and then the constant parts of both sides must be equal.
so,
3ax = 4x
3a = 4
a = 4/3
-8b = 6a = 6×4/3 = 2×4 = 8
-8b = 8
b = -1
To find b in the equation 3ax - 8b = 4x + 6a, first solve for the constant a as 4/3 by equating coefficients of x. Then, equating constant terms gives b as -1.
Explanation:In the equation 3ax - 8b = 4x + 6a, first, you compare coefficients of x on the left and right side, which means 3a should be equal to 4, giving you the value of a which is a = 4/3.
Then, the constant terms should be equal on both sides as well hence, -8b = 6a gives you -8b = 6*(4/3), so b = -1.
Therefore, given the original equation and that a is a constant, the equation is true for all values of x if a = 4/3, and b = -1.
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There are 240 children at summer camp. They will travel by bus on a field trip. Each bus will hold a total of 50 students.
What is the minimum number of buses they will need?
A middle school took all of its 6th grade students on a field trip to see a play at a theater that has 3200 seats. The students filled 2496 of the seats in the theater. What percentage of the seats in the theater were filled by the 6th graders on the trip?
The percentage of the seats in the theater were filled by the 6th graders on the trip is 78%.
What is the percentage?Percentage is a measure of frequency that is expressed as the fraction of a number out of 100.
The percentage of the seats in the theater were filled by the 6th graders = (number of filled seats / total number of seats) x 100
(2496/3200) x 100 = 78%
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A small bus charges $3.50 per person for a ride from the train station to a concert. The bus will run if at least 3 people take it, and it cannot fit more than 10 people.
Function B gives the amount of money that the bus operator earns when n people ride the bus.
Which numbers make sense as inputs and outputs for this function?
i. 3-10
ii. 4-11
iii. 2-10
iv. 10-15
Answer:
the minimum amount of money that the operator earns when n people ride the bus is $10.5 and the maximum amount of money that the operator earns when n people ride the bus is $35.
Amount = 3.5n
Use the following information about project A to answer the following 3 questions: Project A has an initial cost of $180,000 and would produce cash flows of $60,000 per year for the first two years of the project and $80,000 per year for the last two years of the project. The required return for the project is 12%. What is the Net Present value for project A? a. $ 29,187 b. $ 74,581 c. $100,000 d. $389,187 What is the Internal Rate of Return for project A? a. 14.03% b. 26.60% c. 19.04% d. 12.81% Should the project be undertaken? a. Yes b. No c. Not enough information
The Net Present Value (NPV) for project A is (a) $29,187.
The Internal Rate of Return (IRR) for project A is (a) 14.03%.
(a) Yes, The project should be undertaken.
The Net Present Value (NPV) is a financial metric used to assess the profitability of an investment project by calculating the present value of its expected cash flows. In this case, project A has an initial cost of $180,000 and is expected to generate cash flows of $60,000 per year for the first two years and $80,000 per year for the last two years. The required return for the project is 12%.
To calculate the NPV, we discount each cash flow back to its present value using the required return. The present value of the cash flows for the first two years can be calculated as follows:
Year 1: $60,000 / (1 + 0.12) = $53,571.43
Year 2: $60,000 / (1 + 0.12)² = $47,733.63
Similarly, the present value of the cash flows for the last two years can be calculated as follows:
Year 3: $80,000 / (1 + 0.12)³ = $58,783.53
Year 4: $80,000 / (1 + 0.12)⁴ = $52,406.25
Adding up all the present values of the cash flows and subtracting the initial cost, we get:
NPV = ($53,571.43 + $47,733.63 + $58,783.53 + $52,406.25) - $180,000 = $29,187
The positive NPV indicates that the project is expected to generate a return higher than the required rate of return. Thus, undertaking the project is financially viable.
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PLEASE HELP! WILL GIVE BRAINLIEST AND 30 POINTS!
What is the range of possible values for x?
The diagram is not to scale.
Answer in this format: a < b < c
What is the domain? I need help on this problem
The domain of the function \(f(x) = \sqrt{\frac{1}{3}x + 2\) is (d) x ≥ -6
How to determine the domain of the functionFrom the question, we have the following parameters that can be used in our computation:
\(f(x) = \sqrt{\frac{1}{3}x + 2\)
Set the radicand greater than or equal to 0
So, we have
1/3x + 2 ≥ 0
Next, we have
1/3x ≥ -2
So, we have
x ≥ -6
Hence, the domain of the function is (d) x ≥ -6
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Use the following building blocks in the right column to assemble a direct proof that the product of two odd numbers is odd Not all blocks belong in the proof. Suppose that the product of two odd numbers is odd. Distributing we get nm-2(2kk)+1 Suppose that nm is odod. By multiplying these equations, we obtain nm = (2k + 1)(29 + 1). By definition of an odd integer, that means that nm is odd. Suppose that n and m are odd numbers. Then n = 2k + 1 for some integer k and m = 2q + 1 for some integer q. Then n 2k + 1 and m-2k + 1 for some integer k.
Using the following building blocks in the right column to assemble a direct proof that the product of two odd numbers is odd, we have:
Suppose that n \(\alpha\) m is oddThen n = 2k + 1, for some integers k, m = 2q + 1, for some integers qBy multiplying these equations, we obtain mn = (2k +1)(2q + 1)Distributing, we get: nm = 2(2kq + k + q) + 1By definition of odd integers, nm is oddWhat is a Mathematical Proof?A mathematical proof is an inferential justification for a mathematical claim that demonstrates how the premises logically support the conclusion.
The direct proof has been assembled above,
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Nellie's drama club is taking a trip by bus to see a performance at the Carmine Theater. The theater is 125 miles from Nellie's school. The bus driver plans to stop and refuel after 1.5 hours, then complete the trip. The bus driver plans to drive at an average speed of 50 miles per hour.
Which equation can you use to predict how many hours, x, the second part of the trip will take?
The equation to predict how many hours, x, the second part of the trip will take is :x = (total distance - distance traveled in the first part) / average speed x = (125 - 75) / 50 x = 1
To predict how many hours, x, the second part of the trip will take, we can use the equation:
x = (total distance - distance traveled in the first part) / average speed
In this case, the total distance of the trip is 125 miles, and the distance traveled in the first part is the product of the average speed and the time taken for the first part, which is 50 miles/hour * 1.5 hours = 75 miles.
Substituting these values into the equation, we have:
x = (125 - 75) / 50
Simplifying the equation, we get:
x = 50 / 50
x = 1
Therefore, the equation to predict how many hours, x, the second part of the trip will take is:
x = (total distance - distance traveled in the first part) / average speed
x = (125 - 75) / 50
x = 1
This means that the second part of the trip will take 1 hour to complete after the bus stops to refuel.
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What is the range of the given function?
A 2-column table with 4 rows. The first column is labeled x with entries negative 5, 1, 4, 6. The second column is labeled y with entries 9, 0, negative 7, negative 1.
Answer:
Step-by-step explanation:
x= -5,1,4,6 y=9,0,-7,-1
the range of a given function equals to the value of y in order
range = -7,-1,0,9
The school cafeteria sells three different types of sandwiches: chicken, turkey,
and roast beef. Chicken sandwiches sell for $3, turkey sandwiches sell for
$3.50, and roast beef sandwiches sell for $4. The cafeteria makes 400
sandwiches in total, and, if all sandwiches are sold, the cafeteria will take in
$1375. If the cafeteria makes the same number of chicken sandwiches as it
does turkey sandwiches, how many of each type of sandwich does the school
make? (Hint: Write one equation for the number of sandwiches, one equation
for to amount of money all the sandwiches cost, and an equation that show the
number of chicken and turkey sandwiches are equal.)
No
Answer:
Number of chicken sandwiches = 150
Number of turkey sandwiches = 150
Number of roast beef sandwiches= 100
Step-by-step explanation:
We are told the school cafeteriat makes and sells 3 different types of sandwiches which are; chicken, turkey and roast beef.
Let chicken be x, turkey be y and roast beef be z.
We are told they make 400 sandwiches in total.
Thus;
x + y + z = 400
However, we are told that the cafeteria makes same number of chicken and turkey sandwiches.
Thus, x = y
Thus;
Total is now;
x + x + z = 400
2x + z = 400 - - - (eq 1)
Now,we are told that chicken, turkey and roast beef sandwiches are sold for $3, $3.5 and $4 respectively. Also that the total amount realized from sales is $1375.
Thus;
3x + 3.5y + 4z = 1375
Since x = y. Thus;
3x + 3.5x + 4z = 1375
6.5x + 4z = 1375 - - - (eq 2)
Let's make z the subject in eq 1.
Thus;
z = 400 - 2x - - - (eq 3)
Putting 400 - 2x for z in eq(2) gives us;
6.5x + 4(400 - 2x) = 1375
6.5x + 1600 - 8x = 1375
1600 - 1375 = 8x - 6.5x
225 = 1.5x
x = 225/1.5
x = 150
Putting 150 for x in eq 3 gives;
z = 400 - 2(150)
z = 400 - 300
z = 100
Since x = y. Then y = 150
Find the 60th term of the arithmetic sequence -27, -24, -21, ...−27,−24,−21,...
Answer:
150
Step-by-step explanation:
The common difference, d, is +3 add +3 to find the next term.
to find the second term add +3 to the first term
to find the third term add 2 * +3
to find the 60th term add 59 * +3 to the first term
-27 + (59*3) = 150
PLEASEEEEEE HELPPPPPP MATHHHH
1.The shape formed from intersection are hemisphere, cone and triangular prism
2. The only figure that is not a polyhedron is the second figure.
What is a polyhedron?Any three-dimensional geometric solid known as a polyhedron is composed of flat polygonal faces, angular edges, and pointy vertices. It is an interesting object with a variety of straightforward to intricate forms. Polyhedrons can be found in crystals and various biological forms in the natural world.
Polyhedrons have two-dimensional polygonal faces, which give them their characteristic shape. These faces are connected by edges, which are line segments where two faces converge. At every intersection of edges, we identify vertices. The number and arrangement of faces, edges, and vertices determine the kind of polyhedron.
1. In the question given, the shape formed by intersection of the plane are hemisphere, cone and a triangular prism.
2. The only figure that is not a polyhedron is the second figure.
In the second figure, the figures formed from intersection of the plane are hemisphere, cone and triangular prism respectively.
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If you have the option of choosing a loan that will accumulate 4%/ a interest compounded semi-annually compared to a loan that will accumulate 4% /a interest compounded monthly, which one would you choose
Answer:
4%/ a interest compounded semi-annually
Step-by-step explanation:
The option that gives the lower interest rate payment would be more appropriate. to determine this calculate the effective interest rate
Effective annual rate = (1 + APR / m ) ^m - 1
M = number of compounding
(1 + 0.04/2)^2 - 1 = 4.04%
(1 + 0.04/12)^12 - 1 = 4.07%
the choice should be 4%/ a interest compounded semi-annually
Sarafina had 34 out of 99 hits when she was at bat during the soft ball season. What was her batting average? (use bar notation if needed)
WILL GIVE BRAINLY
SHOW WORK
Answer:
34%
Step-by-step explanation:
34/99÷1/100=
34/99×1/100=
17/99×1/50=
17/4959=34%
Claire completed the steps to solve the system of equations. 4 x minus 2 y = 4. 3 x + 3 y = 21. Step 1 12 x minus 6 y = 12. 6 x + 6 y = 42. Step 2 18 x = 54. Step 3 x = 3. Step 4 4 (3) minus 2 y = 4. 12 minus 2 y = 4. 2 y = negative 8. Y = negative 4. Step 5 Solution is (3, negative 4). Is Claire's solution to the system of equations correct? Explain why or why not.
Answer:
Claire should have gotten –2y = –8 instead of 2y = –8 in step 4.
Step-by-step explanation:
Following the steps taken :
4x - 2y = 4 - - - (1)
3x + 3y = 21 - - - (2)
Multiply (1) by 3 and (2) by 2
12x - 6y = 12 - - - (3)
6x + 6y = 42 - - - (4)
Add (3) and (4)
18x = 54
x = 54/18
x = 3
Put x = 3 in (1)
4(3) - 2y = 4
12 - 2y = 4
-2y = 4 - 12
-2y = - 8 (this is where the mistake lies)
It shouldn't be 2y = - 8 as stated
Answer:
The other dude is right.
Step-by-step explanation: