The function f(x) = 1/2(3)ˣ + 7 depicts exponential decay.
What is a expression? What is a mathematical equation? What do you understand by 'e' in mathematics?A mathematical expression is made up of terms (constants and variables) separated by mathematical operators. A mathematical equation is used to equate two expressions. Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem. Euler’s Number ‘e’ is a numerical constant used in mathematical calculations and is an irrational number. Jacob Bernoulli discovered the mathematical constant e.
e = \(\lim_{n \to \infty} (1 + 1/n)^{n}\)
We have the following function -
f(x) = 1/2(3)ˣ + 7
It can be seen that the graph decreases and becomes constant in the first quadrant. Therefore, the function depicts exponential decay.
Therefore, the function f(x) = 1/2(3)ˣ + 7 depicts exponential decay.
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use simpson's rule with n=4 to approximate the solution to part b at x=0.5 to three decimal places.
Using the value of ∫01x3+1dx obtained above, we can approximate the value of∫0.50x3+1dx as:Simpson's Rule ∫abf(x)dx≈b−a3n[f(a)+2∑i=12n−1f(ai)+4∑i=14n−1f(xi)+f(b)]≈15[0+2{(13)3+1}+4{(14)3+1}+13+3]≈0.7828Therefore, the solution to part b at x=0.5 to three decimal places is approximately equal to 0.7828.
The solution to part b at x
=0.5 to three decimal places using Simpson's Rule with n
=4 is given as follows:Approximate the value of∫01x3+1dx, with Simpson's Rule using n
=4 subintervals.Simpson's Rule formula for integrating a function, f(x), with n subintervals is given as:Simpson's Rule ∫abf(x)dx≈b−a3n[f(a)+2∑i
=12n−1f(ai)+4∑i
=14n−1f(xi)+f(b)]where h
=(b−a)n and xi
=a+ih for i
=1,2,3,...,n.Substituting a
=0, b=1, f(x)
=x3+1, and n
=4 in Simpson's Rule formula:∫01x3+1dx≈14[0+2{(13)3+1+(23)3+1}+4{(14)3+1+(34)3+1}+13+3]≈1.1354The value of ∫01x3+1dx is approximately equal to 1.1354, using Simpson's Rule with n
=4 subintervals. We want to approximate the solution to part b at x
=0.5 to three decimal places. Using the value of ∫01x3+1dx obtained above, we can approximate the value of∫0.50x3+1dx as:Simpson's Rule ∫abf(x)dx≈b−a3n[f(a)+2∑i
=12n−1f(ai)+4∑i
=14n−1f(xi)+f(b)]≈15[0+2{(13)3+1}+4{(14)3+1}+13+3]≈0.7828Therefore, the solution to part b at x
=0.5 to three decimal places is approximately equal to 0.7828.
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Sally is serving lemonade to four friends. She is serving 4/7 cup per person.
Estimate how much lemonade she needs. Then calculate exactly how much she needs. What is the difference between the estimate and actual amount?
pls help, :)
Answer:
oi ngl levi is hawt I like your pfp ^^
Step-by-step explanation:
my name is Riley
Example 14.11:
A deck of playing cards has 52 cards, divided into four suits (diamonds, spades, clubs, and hearts). There are an equal number of cards in each suit in this deck. If three cards are drawn, what is the probability that the first two cards drawn are clubs and the last is red? There are three events in this problem:
• Let event A = first card drawn is a club, • Let event B = second card drawn is a club • C = third card drawn is red. We want to find P(A and B and C) (i.e. the probability that the first card drawn is a club AND the second card drawn is a club AND the third card drawn is a red card).
Refer to Example 14.11 Suppose the three events are independent. Use the Multiplication Rule to find P(A and B and C). Round answer to FOUR decimal places. 0.0312
To find the probability of event A (first card drawn is a club), event B (second card drawn is a club), and event C (third card drawn is red), we can use the Multiplication Rule for independent events.
Given that the events are independent, the probability of all three events occurring is the product of their individual probabilities.
Let's calculate the probability step by step:
1. Probability of event A: P(A) = Number of clubs / Total number of cards
There are 13 clubs in a deck of 52 cards, so P(A) = 13/52 = 1/4.
2. Probability of event B: P(B) = Number of clubs (after one club is drawn) / Total number of remaining cards
After one club is drawn, there are 12 clubs left out of 51 remaining cards, so P(B) = 12/51 = 4/17.
3. Probability of event C: P(C) = Number of red cards / Total number of remaining cards
There are 26 red cards (diamonds and hearts) out of 50 remaining cards, so P(C) = 26/50 = 13/25
Now, using the Multiplication Rule:
P(A and B and C) = P(A) * P(B) * P(C) = (1/4) * (4/17) * (13/25) = 0.03117647059.
Rounding this result to four decimal places, we get approximately 0.0312.
Therefore, the probability that the first two cards drawn are clubs and the last card is red is approximately 0.0312.
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a data set is symmetrical with a mean of 100 and a standard deviation of 5. About what percent of the data is between 90 and 105?
Here, we want to know the percentage that is 1 standard deviation above the mean and 1 standard deviation below the mean
i Find the determinentist of the following
matrices
i) A= (-1 1)
( 2 0)
HELP ME PLEASEE IM NOT UNDERSTANDING THIS
Answer:
(10, 1), (15, 1), (20, 13), (25, 7)
IS a function
Step-by-step explanation:
The ordered pairs are (input, output). Essentially, the numbers in each ordered pair are the numbers at each end of an arrow. There are as many ordered pairs as there are arrows.
Working top-down on input values, the ordered pairs of this relation are ...
(10, 1), (15, 1), (20, 13), (25, 7)
None of the input values is repeated, so the relation is a function.
find the value of p and of q for which x-3 is a common factor of the expressions \(x^{2} + (p + q)x-q\) and \(2x^2 + (p-1)x + (p+2q)\)
WILL GIVE BRAINLIEST PLS ANSWER
Step-by-step explanation:
Use the Factor Theorem,
" if x-a is a factor of f(x), then f(a) =0,
So here, since x-3 is a factor then f(3)=0,
So first step, plug in 3 for x for the serperate equations.
\( {3}^{2} + ( p + q)3 - q = 0\)
\(2(3) {}^{2} + (p - 1)3 + (p + 2q) = 0\)
Simplify both equations,
\(9 + 3p + 2q = 0\)
\(15 + 4 p + 2q = 0\)
Isolate the constants,
\(3p + 2q = - 9\)
\(4p + 2q = - 15\)
We have a system of equations so let eliminate a variable, by subtracting the two equations.
\( - p = 6\)
\(p = - 6\)
Plug p back in for any one of the equations to find q.
\(3( - 6) + 2q = - 9\)
\( - 18 + 2q = - 9\)
\(2q = 4.5\)
So p is -6
q is 4.5
20 people each bring 3 food dishes to an awards banquet. The dishes are shared equally by 180 people at the banquet. How many people share 1 food dish?
Answer:
3 people
Step-by-step explanation:
If 20 people each bring 3 food dishes to an awards banquet, the total amount of food brought will be (20 * 3) = 60foods
If the dishes are shared equally by 180 people at the banquet, then;
60foods = 180 people
1 food = x
Cross multiply
60* x = 180
60x = 180
x =180/60
x = 3
Hence 3 people will share 1 dish
help solve this answer for me please.
Answer:
The lowest score was 80, because no student had gotten that grade.
7 students scored higher than 85.
The highest score there was, was 70, cause 4 student got that for a grade.
The range is 3, because the highest amount of studnets was 4 and the lowest was 1.
4 - 1 = 3
Step-by-step explanation:
Hope this helps! =D
4−10 =84 what is the answer n explanation
Answer:
x=23.5
Step-by-step explanation:
4x-10=84
+10 +10
4x=94
x=94/4
94/4=23.5
Hope this Helps!
If not I am sorry.
EXERCISE 7
Solve forx:
Answer:
hope it helps.................
What is the slope-intercept form of the linear equation 2x + 3y = 6? Drag and drop the appropriate number, symbol, or variable to each box.
how many 3 letters words can be formed with or without meaning from the letters DURIAN
Answer:
120 ways
Step-by-step explanation:
For this question, you just have to use the permutation technique or multiplication rule.
By using the multiplication rule,
6×5×4=120 ways
By using the permutation technique,
6P3=120 ways
correct me if I'm wrong
Identify the function shown in this graph
Answer:
C. y = 2x - 3
Step-by-step explanation:
Let's go through process of elimination!
First, we can see that the line intersects the y-axis at (0,-3), making the y-intercept -3. In the equation y = mx + b, b is the y-intercept. Therefore, we can easily take out A and D as the wrong answers because their b isn't -3.
Next, we should know that a line with a positive slope is going up, and this line, indeed, is going up. B can't be right because the slope is negative, meaning the line would go down. That leaves us with answer C as the correct choice.
Have a lovely rest of your day/night, and good luck with your assignments! ♡
thermal expansion goes to zero at T approaches zero. By definition, the volume coefficient of thermal expansion is: beta
Yes, the coefficient of thermal expansion goes to zero at T approaches zero.The coefficient of thermal expansion is defined as the fractional change in volume per unit change in temperature.
The coefficient of thermal expansion is defined as the fractional change in volume per unit change in temperature. It is calculated by taking the derivative of volume with respect to temperature. Mathematically, it is expressed as β = (1/V) (dV/dT). As the temperature approaches zero, the change in volume (dV) will also approach zero, and thus the coefficient of thermal expansion (β) will approach zero as well.
The complete question : thermal expansion goes to zero at T approaches zero. By definition, the volume coefficient of thermal expansion is: beta = (1/V) (dV/dT). So, as T approaches zero, (dV/dT) approaches zero, and thus beta approaches zero.
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The Sweet Treat sells 40 lbs of gummy bears and 30 caramel apples every day. At this rate, how many lbs of gummy bears will be sold for every 6 caramel apples? I need an answer ASAP
Answer:
8 pounds of gummy bears.
Step-by-step explanation:
To find this answer I did:
40/30 = 4/3
Then,
4/3 x 6 = 24/3
This simplified is 8.
To check:
8/6 x 5 = 40/30
A six-sided die is rolled. What is the probability the roll is a 5? 1/6 3/6 2/6 5/6 4/6
The probability that the roll is a 5 is 1/6.
Probability is a way to gauge how likely something is to happen. Many things are difficult to forecast with absolute confidence. Using it, we can only make predictions about the likelihood of an event happening, or how likely it is.
The probability of an occurrence is a number used in science to describe how likely it is that the event will take place.
In terms of percentage notation, it is expressed as a number between 0 and 1, or between 0% and 100%.
The higher the likelihood, the more likely it is that the event will take place. A certain occurrence has a chance of 1, while an impossible event has a probability of 0.
Now, there is one 5 on the die, and there are six possible outcomes (1, 2, 3, 4, 5, and 6), so the probability is 1 (the number of 5s) divided by 6 (the total number of outcomes).
So, the probability of getting a 5 is 1/6.
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Find the measure of angle 1
The required measure of angle 1 is 120°. Option D is correct.
A figure of an isosceles triangle is shown, and a measure of the angle 1 is to be deteremined.
What is the triangle?The triangle is a geometric shape that includes 3 sides and the sum of the interior angle should not be greater than 180°
here,
For a triangle, the sum of the interior angle should be equal to 180°,
So,
30 + 30 + ∠1 = 180
∠1 = 180 - 60
∠1 = 120°
Thus, the required measure of angle 1 is 120°. Option D is correct.
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The length of a rectangular room is 2 feet less than twice the width. If the
perimeter is 68 feet, find the length and width of the room
Answer:
Width: 12 feet
Length: 22 feet
Step-by-step explanation:
Let's assign variable w to width, and create an expression that uses this variable w for length.
Length: 2w - 2
Width: w
Perimeter of a rectangle is found by using the formula:
\(2l+2w=P\)This holds true because in a rectangle, the sides opposite to each other are parallel and congruent.
We are given the perimeter in this question, 68 feet, so we can substitute this number into the formula to find the perimeter of a rectangle.
We can also substitute the expressions for length and width into the formula.
\(2(2w-2)+2(w)=68\)Distribute 2 inside the parentheses.
\(4w-4+2w=68\)Combine like terms on the left side of the equation.
\(6w-4=68\)Add 4 to both sides of the equation.
\(6w=72\)Divide both sides of the equation by 6.
\(w=12\)The width of the rectangular room is 12 feet. Now substitute this value for w into the expression for length in order to find the length of the room.
\(l = 2w-2\)\(l=2(12)-2\)\(l=24-2\)\(l=22\)The length of the rectangular room is 22 feet.
insert brackets to make the statement true 10 + 2 x 3^2 - 2 = 84
Inserting brackets to make the statement true 10 + 2 x 3^2 - 2 = 84 will be (10 + 2) × (3² - 2).
How to illustrate the informationIt should be noted that the information simply means that one had to put the bracket in the appropriate places on order to get the value of 84.
This will be illustrated thus:
= 10 + 2 × 3² - 2
= (10 + 2) × (3² - 2)
= 12 × (9 - 2)
= 12 × 7
= 84
Therefore, the expression is true.
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This diagram represents a small stage in the shape of a semicircle.
What is the area, in square yards, of the stage?
A 6.25pi square yards
B 12.5pi square yards
©25pi square yards
D 50pi square yards
The area of the stage is option B: 12.5pi square yards.
What is an area?
The area of a semicircle is given by the formula A = (πr²)/2, where r is the radius. In this case, the diameter is given as 10 yards, so the radius is half of that, or 5 yards.
Plugging in the value of the radius into the formula, we get:
A = (π(5)²)/2 = (25π)/2
Simplifying, we get:
A = 12.5π square yards
Therefore, the answer is option B: 12.5pi square yards.
What is semicircle?
A semicircle is a two-dimensional geometric shape that is formed by taking half of a circle. Specifically, a semicircle is the curved portion of a circle that is formed when a diameter is divided into two equal parts, and one of the parts is removed. The straight edge of the semicircle is the diameter of the original circle.
The formula for the area of a semicircle is half of the formula for the area of a full circle: A = (πr²)/2, where A is the area of the semicircle and r is the radius of the original circle. The formula for the circumference of a semicircle is half of the formula for the circumference of a full circle: C = πr, where C is the circumference of the semicircle and r is the radius of the original circle.
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Complete question is: The area of the stage is option B: 12.5pi square yards.
Write 0.38 as a fraction in lowest terms.
Answer:
19/50
Step-by-step explanation:
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Answer:
19/50
Step-by-step explanation:
Express in the form
1
:
n
8
:
24
Answer:
1:3
Step-by-step explanation:
Answer:
1:3 is the correct answer
Hailey is making pizzas for a pizza party. Each pizza requires 1/2 pound of cheese. How many pounds of cheese does she need to make 19 pizzas? Express your answer in simplest form.
Cheese required for 1 pizza = ½ pound
So, cheese required for 19 pizzas
= 19 × ½ pounds
= 19/2 pounds
= 9½ pounds
So, Hailey needs 9½ pounds of cheese to make 19 pizzas.
The solution is 9.5 pounds
The number of pounds of cheese Hailey need to make 19 pizzas is 9.5 pounds
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the number of pounds of cheese for 19 pizzas be A
Now , the equation will be
The number of pounds of cheese for 1 pizza = 1/2 pounds
So , the number of pounds of cheese for 19 pizzas = 19 x number of pounds of cheese for 1 pizza
Substituting the values in the equation , we get
The number of pounds of cheese for 19 pizzas = 19 x ( 1/2 )
The number of pounds of cheese for 19 pizzas = 19/2
The number of pounds of cheese for 19 pizzas = 9.5 pounds
Therefore , the value of A is 9.5 pounds
Hence , the number of pounds of cheese is 9.5 pounds
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Using a graph, table of values, and/or equations solve the following problem.
When 1 is subtracted from six times a certain number, the result is 21. What is the number?
Round and write your answer to the tenths place value. Do not include units
Answer:
n = 11/3
Step-by-step explanation:
n = certain number
6n - 1 = 21
6n = 22
n = 22/6 or 11/3
Write an equation for the transformed logarithm shown below, that passes through (3,0) and (0,2) f(x)= Question Help: −b Video
The equation for the transformed logarithm that passes through the points (3,0) and (0,2) can be written as f(x) = -b * log(base a)(x - h) + k, where a, b, h, and k are constants to be determined.
To find the equation for the transformed logarithm, we need to use the given points (3,0) and (0,2) to determine the values of a, b, h, and k. Let's start with the point (3,0). Plugging the x-coordinate (3) into the equation, we have:
0 = -b * log(base a)(3 - h) + k
Next, we'll use the point (0,2) to obtain another equation. Plugging the x-coordinate (0) into the equation, we get:
2 = -b * log(base a)(0 - h) + k
Simplifying these equations, we have a system of equations to solve for a, b, h, and k. However, since the equation involves a logarithm, we need more information to determine the specific values of a, b, h, and k.The transformed logarithm function includes transformations such as vertical stretches/compressions (b), horizontal shifts (h), and vertical shifts (k). Without more specific information about these transformations or the base of the logarithm, it is not possible to determine the equation uniquely.
In general, the equation for a transformed logarithm can be written as f(x) = -b * log(base a)(x - h) + k, where a, b, h, and k are constants determined by the specific transformations applied to the logarithm function. It's important to have additional information or instructions to determine the values of a, b, h, and k and provide an equation that accurately represents the given transformed logarithm.
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help please !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!111
Jenna and Mia arrived at the same answer because both the methods they have adopted are correct.
Given solution of a question done by two people.
Jenna's method
5(30+4)
(5)(30)+(5)(4)
150+20=170
Mia's method
5(30+4)
5(34)=170
We are required to find why they have achieved at the same answer.
Jenna and Mia have achieved at the same answer because they both have adopted the right method.Jenna's method is the equation in its simplest form. Addition of that is easily understood. While Mia's method is just valid as Jenna's some people may have trouble remembering the steps of multiplication within parantheses as well as being able to look at large multiplication problem and automatically knowing the answer or being able to get the answer as fast as simple addition.
Hence Jenna and Mia arrived at the same answer because both the methods they have adopted are correct.
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For a set population, does a parameter ever change? sometimes always unknown never if there are three different samples of the same size from a set population, is it possible to get three different values for the same statistic?
For a set population, a parameter does not change. A parameter is a numerical value that describes some aspect of a population, such as the mean, median, or standard deviation.
It is a fixed value that represents the entire population and does not change as new data is collected.
If there are three different samples of the same size from a set population, it is possible to get three different values for the same statistic.
Because a sample is a subset of a population, the values of statistics calculated from samples will vary depending on the specific individuals or observations that are included in the sample. Even if the samples are of the same size, they will likely have different values for the statistics because of the randomness of sampling.
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5.
Select the correct answer from each drop-down menu.
A school club will be competing at a state championship has been working to raise money for the club's travel expenses. The table shows
the amount of money raised each month over a nine-month period beginning in August
Month
1
2
4
5
6
7
8
9
Amount ($)
250
275
325
300
350
375
375
350
350
Based on the data in the table, Clara and Michael each use their own function to determine the amount of money the club should expect to raise
in the next three months.
Clara's function: y = -3.14.2 + 44.75 + 203.6
Michael's function: y = 44.64V1 + 1 + 246.5
How does using the different models affect the amount of money the club would expect to raise in the next three months?
If the club uses Clara's function, it would expect the amount of money to
If the club uses Michael's function, it would expect the amount of money to
each month
each month
Reset
Next
Answer:
descrease & increase
Step-by-step explanation:
Answer:
Decrease and increase.
Step-by-step explanation:
(NEED HELP ASAP) Elaine has a piece of wire that is 2.16 meters lone. Carlos has a piece of wire that is 2.061 meters long.Whose piece of wire is longer? *19 Points*
1.Elaine has the longer pieces of wire. 2.16
2.Carlos has the longer pieces of wire. 2.061
Answer:
Elaine
Step-by-step explanation:
2.1 is bigger than 2.06