12 inches in a foot so 9 inches = 9/12 of a foot
9/12 reduces to 3/4
so 4 ft 9 inches = 4 3/4 feet
Find the distance between the points 6 + 5i and 1 – 2i.
Answer:
Approximately 8.6
Step-by-step explanation:
Find the lowest common denominator of and . A. x3y4 B. x2y3 C. xy4 D. x4y5
Answer:15 2 3
Step-by-step explanation:
A wire is first bent into the shape of a triangle. Each side of the triangle is
12cm long. Then the wire is unbent and reshaped into a square. What is the length of a side of the square?
Final answer:
By dividing the total length of the wire (36 cm) by the number of sides of a square (4), we find that the length of one side of the square is 9 cm.
Explanation:
We start by calculating the total length of the wire when it was bent into an equilateral triangle. Since each side is 12 cm long and there are three sides, the total wire length is 3 × 12 cm = 36 cm. When the wire is unbent and reshaped into a square, the total wire length remains the same; thus, the perimeter of the square is also 36 cm. A square has four equal sides, so the length of each side of the square is the perimeter divided by four.
Length of one side of the square = Total wire length ÷ 4
Length of one side of the square = 36 cm ÷ 4
Length of one side of the square = 9 cm
How many ounces of gold are in anan 18-karat gold chain that weighs 2.7 ounces?
A karat is a measure of the amount of gold in the gold chain. The karat has a maximum value of 24 karats. This means that an 18 karat of gold chain contains 18 parts of pure gold for every 24 parts of gold chain. Therefore:
gold = (18 / 24) * 2.7 ounces
gold = 2.025 ounces
The number of minutes taken for a chemical reaction if f(t,x). it depends on the temperature t degrees celcius, and the quantity, x grams, of a catalyst present. when the temperature is 30 degrees celcius and there are 5 grams of catalyst, the reaction takes 50 minutes. increasing the temperature by 3 degrees reduces the time taken by 5 minutes. increasing the amount of catalyst by 2 grams decreases the time taken by 3 minutes. use this information to find the partial derivatives fx(30,5) and ft(30,5). use the tangent plane approximation to find f(33,4).
The partial derivatives fx(30,5) and ft(30,5) can be calculated using the given information, and the tangent plane approximation can be used to estimate f(33,4).
Explanation:The chemical reaction time is represented by the function f(t,x), where t is the temperature in degrees Celsius and x is the quantity of a catalyst present in grams. We are given that when the temperature is 30 degrees Celsius and there are 5 grams of catalyst, the reaction takes 50 minutes. Additionally, increasing the temperature by 3 degrees reduces the time taken by 5 minutes, and increasing the amount of catalyst by 2 grams decreases the time taken by 3 minutes.
To find the partial derivative fx(30,5), we need to find the rate of change of the reaction time with respect to the quantity of catalyst, while holding the temperature constant. Using the given information, we can calculate:
fx(30,5) = (f(30,5+2)-f(30,5))/2 = (-3)/2 = -1.5
To find the partial derivative ft(30,5), we need to find the rate of change of the reaction time with respect to the temperature, while holding the quantity of catalyst constant. Using the given information, we can calculate:
ft(30,5) = (f(30+3,5)-f(30,5))/3 = (-5)/3 = -1.67
Using the tangent plane approximation, we can estimate f(33,4) by calculating the change in reaction time by adjusting the temperature to 33 degrees Celsius and the quantity of catalyst to 4 grams.
f(33,4) = f(30,5) + ft(30,5) * (33-30) + fx(30,5) * (4-5)
f(33, 4) = 50 + (-1.67) * 3 + (-1.5) * -1 = 50 - 5.01 + 1.5 = 46.49
[tex]\( f_t(30,5) = -\frac{5}{3} \)[/tex], [tex]\( f_x(30,5) = -1.5 \)[/tex], [tex]\( f(33,4) \approx 46.5 \)[/tex] minutes.
ft (30, 5) =_[tex]\(-\frac{5}{3} \)[/tex]_ fx (30,5) =_-1.5_ f (33,4)=__46.5 minutes__
To find the partial derivatives [tex]\( f_t(30,5) \)[/tex] and [tex]\( f_x(30,5) \)[/tex], we'll use the given information about how changes in [tex]\( t \) and \( x \)[/tex] affect the time [tex]\( f(t,x) \)[/tex].
Given:
- [tex]\( f(30,5) = 50 \)[/tex] minutes
- Increasing [tex]\( t \)[/tex] by 3 degrees Celsius reduces [tex]\( f \)[/tex] by 5 minutes.
- Increasing [tex]\( x \)[/tex] by 2 grams decreases [tex]\( f \)[/tex] by 3 minutes.
1. Partial derivative with respect to [tex]\( t \) at \( (30,5) \)[/tex]:
- Change in [tex]\( t \): \( \Delta t = 3 \)[/tex] degrees Celsius
- Change in [tex]\( f \): \( \Delta f = -5 \)[/tex] minutes
- Using the definition of partial derivative:
[tex]\[ f_t(30,5) = \frac{\Delta f}{\Delta t} = \frac{-5}{3} = -\frac{5}{3} \text{ minutes/degree Celsius} \][/tex]
2. Partial derivative with respect to [tex]\( x \) at \( (30,5) \)[/tex]:
- Change in [tex]\( x \): \( \Delta x = 2 \)[/tex] grams
- Change in [tex]\( f \): \( \Delta f = -3 \)[/tex] minutes
- Using the definition of partial derivative:
[tex]\[ f_x(30,5) = \frac{\Delta f}{\Delta x} = \frac{-3}{2} = -1.5 \text{ minutes/gram} \][/tex]
Now, to find [tex]\( f(33,4) \)[/tex] using the tangent plane approximation, we'll use the partial derivatives we found and the point [tex]\( (30,5) \)[/tex] as a reference:
The tangent plane approximation formula is:
[tex]\[ f(t,x) \approx f(30,5) + f_t(30,5)(t-30) + f_x(30,5)(x-5) \][/tex]
Substituting the values:
[tex]\[ f(33,4) \approx 50 + \left(-\frac{5}{3}\right)(33-30) + (-1.5)(4-5) \][/tex]
[tex]\[ f(33,4) \approx 50 - 5 + 1.5 \][/tex]
[tex]\[ f(33,4) \approx 46.5 \text{ minutes} \][/tex]
So, [tex]\( f(33,4) \approx 46.5 \)[/tex] minutes.
Thus:
- [tex]\( f_t(30,5) = -\frac{5}{3} \)[/tex] minutes/degree Celsius
- [tex]\( f_x(30,5) = -1.5 \)[/tex] minutes/gram
- [tex]\( f(33,4) \approx 46.5 \)[/tex] minutes
The correct question is:
The number of minutes taken for a chemical reaction if f(t,x). It depends on the temperature t degrees Celsius, and the quantity, x grams, of a catalyst present. When the temperature is 30 degrees Celsius and there are 5 grams of catalyst, the reaction takes 50 minutes. Increasing the temperature by 3 degrees reduces the time taken by 5 minutes. Increasing the amount of catalyst by 2 grams decreases the time taken by 3 minutes. Use this information to find the partial derivatives fx(30,5) and ft(30,5). Use the tangent plane approximation to find f(33,4). ft (30, 5) =__________ fx (30,5) =__________ f (33,4)=__________
In the number 12,005,999 what is the value of the 2
E bisects DF, DE=2y, and EF=8y-3. Find DE, EF, and DF
What's the principal square root of 169
The principal square root of 169 is 13.
The principal square root of a number is the non-negative square root.
The principal square root of 169 is the non-negative number that, when multiplied by itself, equals 169.
We are looking for a number such that when it is squared (multiplied by itself), it equals 169.
This can be expressed mathematically as:
x² = 169
The solution to this equation is
x = √169.
169 is a perfect square, and its square root is 13 because:
13 × 13 = 169.
Therefore, the principal square root of 169 is 13.
What is the result of dividing x^3-4 by x+2
A. x^2-2x+4+12/x+12
B. x^2-2x+4+4/x+2
C. x^2-2x+4-4/x+2
D. x^2-2x+4-12/x+2
What is the result of dividing 2x^3+x^2-2x+8 by x+2
A. 2x^2+5x+8
B. 2x^2-3x+16
C. 2x^2-3x+4
D. 2x^2+5x-8
What is the remainder when the polynomial 6x^2+11x-3 is divided by 2x-1
Jorge wasnt to divide 3x^2-x-2 by x+4 using synthetic division. (has picture)
Which answer shows the correct process?
What is the remainder when the polynomial 6x^2+11x-3 is divided by x+2
Help please algebra
andre placed 7/8 gallon of water in a pot near his wood burning stove 1/5 gallon of water evaporates each hour how many hours would it take for the entire pot of water to evaporate
A jet travels 500 miles in 2 hours. At this rate, how far could the jet fly in 8 hours? What is the rate of speed of the jet?
500 / 2 = 250 miles per hour ( rate of speed)
250 * 8 = 2,000 miles in 8 hours
There is a box full of toys. There are four Lego sets, six video games, and five remote control cars. You randomly choose a toy. Find the probability of choosing a remote control car. A. 1/7 B. 7/24 C. 1/3 D. 11/24
The probability of choosing a remote control car from the box is 1/3, which is calculated by dividing the number of remote control cars (5) by the total number of toys (15).
Explanation:To find the probability of choosing a control car from the box, we use the formula for probability, which is:
Probability = Number of favorable outcomes / Total number of possible outcomes
The number of favorable outcomes is the quantity of remote control cars which is 5. The total number of toys is the sum of all the toys, which are 4 Lego sets + 6 video games + 5 remote control cars = 15 toys in total.
The probability is therefore calculated as:
Probability of choosing a remote control car = 5 (number of remote control cars) / 15 (total number of toys) = 1/3
Hence, the correct answer is C. 1/3.
What is the distance in km between two cites that are 7.5 cm apart on a 1:24 000 scale
ann took a taxi home from the airport. the taxi fare was $2.10 per mile and she gave the driver a $5 tip. Ann paid a total of $49.10. What is an equation to determine the distance in miles from Anns home to the airport?
Five cans of tomatoes cost $6.50. At this rate, how much will nine cans of tomatoes cost?
The cost of one can of tomatoes is $1.30, so nine cans at this rate would cost $11.70.
If five cans of tomatoes cost $6.50, to find the cost of nine cans, we first need to find the cost of one can of tomatoes. We do this by dividing the total cost by the number of cans.
Cost per can = Total cost / Number of cans
Cost per can = $6.50 / 5
Cost per can = $1.30
Now that we know how much one can costs, we can find out how much nine cans will cost by multiplying the cost per can by nine.
Total cost for nine cans = Cost per can × Number of cans
Total cost for nine cans = $1.30 × 9
Total cost for nine cans = $11.70
Therefore, nine cans of tomatoes will cost $11.70.
What is the r (common ratio) for the geometric sequence: -3, -15, -75, -375, -1875...
Mei draws three pairs of parallel lines that are each intersected by a third line. In each figure, she measures a pair of angles. What is a reasonable conjecture for Mei to make by recognizing a pattern and using inductive reasoning? A. When a pair of parallel lines are intersected by a third line, the alternate interior angles are congruent. B. When a pair of parallel lines are intersected by a third line, the alternate interior angles are acute. C. When a pair of parallel lines are intersected by a third line, all of the angles formed are obtuse. D. When a pair of parallel lines are intersected by a third line, all of the angles formed are congruent.
The only correct statement among the choices is:
A. When a pair of parallel lines are intersected by a third line, the alternate interior angles are congruent.
This statement can actually be proven by measuring the angles of the alternate interior angles. We can actually see that they have equal measurements. While the adjacent interior angles are supplementary angles.
Solve the following equation, answer as a reduced, mixed number.
4(7x - 1) = 3(2x + 1) - 4(x + 6)
The two numbers with a product of 30 and a sum of 17 are
The required numbers are "15" and "2".
What is the number system?A number system is defined as a way to represent numbers on the number line using a set of symbols and approaches. These symbols, which are known as digits, are numbered 0 through 9.
Let the first number would be x and the second number would be y
We have been given that the two numbers with a product of 30,
So, x × y = 30
x = 1/y .....(i)
And the sum of 17, then x + y = 17 .....(ii)
Take both equations, then solves them and we get the values that are:
x = 15 and y = 2
So, 15 × 2 = 30 and 15 + 2 = 17
Thus, the required numbers are "15" and "2".
Learn more about the number system here:
https://brainly.com/question/21751836
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Evaluate ƒ(x) = 3x + 8 for x = 1.
Answer: The required value of f(x) for x = 1 is 11.
Step-by-step explanation: We are given to evaluate f(x) for x = 1, where
[tex]f(x)=3x+8~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)[/tex]
To evaluate the required value, we need to substitute x = 1 in expression (i).
So, putting x = 1 in (i), we get
[tex]f(1)=3\times1+8=3+8=11.[/tex]
Thus, the required value of f(x) for x = 1 is 11.
An air show is scheduled for an airport located on a coordinate system measured in miles. The air traffic controllers have closed the airspace, modeled by a quadratic equation, to non-air show traffic. The boundary of the closed airspace starts at the vertex at (10, 6) and passes through the point (12, 7). A commuter jet has filed a flight plan that takes it along a linear path from (–18, 14) to (16, –13). Which system of equations can be used to determine whether the commuter jet’s flight path intersects the closed airspace?
Answer:
third option
Step-by-step explanation:
I just got a 100
Answer:
C
Step-by-step explanation:
The ratio of boy to girls in a class is 3 : 2. There are 15 boys in the class. How many total boys and girls are in the class?
How is the parent function y=x2 related to the given function Y=3(x+1)2?
A single little brown bat can eat up to 1,000 mosquitoes in a single hour. Express in scientific notation how many mosquitoes a little brown bat might eat in 10.5 hours.
What is the value of the expression 5x+2y y-x2 when x=2 and y =3
How many solutions are there in the equation below 8x+11=8x+8
A worker can assemble 3 shelf units each hour. the same worker can assemble 6 tv stands each hour. if x = hours assembling shelf units, y = hours assembling tv stands, and 24 = total number of furniture pieces made, write a function in standard form modeling the situation.
To solve the literal equation 5x = 7t + 6, what is the first step that you must do?
Can anyone help me?
A student has two test scores. the difference between the scores is 44 and the mean, or average, of the scores is 8484. what are the two test scores?