HELP ASAP PLS!!!!…..,,,
The first value of the given exponential expression would be 3.
What is an exponential function?
An exponential function is a mathematical function of the form f(x) = aˣ, where "a" is a positive constant and x is a real number. The function represents an exponential growth or decay, depending on the value of "a". If "a" is greater than 1, the function increases rapidly as x increases. If "a" is between 0 and 1, the function decreases as x increases.
In the exponential expression y = 3 * q⁵, the first value is 3.
Hence, the first value of the given exponential expression would be 3.
To learn more about the exponential function, visit:
https://brainly.com/question/2456547
#SPJ1
help!!!!!!!!!!!!!!!!!!!!!
Answer:
2. 90+240= 330 m cubed
3. (24*2)+96= 144 cm cubed
(a) Solve the partial differential equation ∂x 2
∂ 2
u
= ∂t
∂u
u(0,t)=u(10,t)=0u(x,0)=x
Therefore, the final solution is given by: u(x,t) = ∑[n=1 to ∞] sin(nπx/10) e^(-n²π²t/100) This represents an infinite series of sine functions that decay exponentially with time.
To solve the given partial differential equation:
∂²u/∂x² = ∂u/∂t
with the boundary conditions:
u(0,t) = u(10,t) = 0
and the initial condition:
u(x,0) = x
we can use the method of separation of variables.
Step 1: Assume a solution of the form u(x,t) = X(x)T(t), where X(x) represents the spatial part and T(t) represents the temporal part of the solution.
Step 2: Substitute the assumed solution into the partial differential equation to obtain:
X''(x)T(t) = X(x)T'(t)
Step 3: Divide both sides of the equation by X(x)T(t) to separate the variables:
X''(x)/X(x) = T'(t)/T(t)
Step 4: The left-hand side of the equation is solely dependent on x, while the right-hand side is solely dependent on t. Since they are equal to a constant, say -λ², we have two ordinary differential equations:
X''(x) + λ²X(x) = 0 (1)
T'(t)/T(t) = -λ² (2)
Step 5: Solve equation (1) to obtain the spatial part of the solution. The general solution to this equation is given by:
X(x) = A cos(λx) + B sin(λx)
where A and B are constants to be determined.
Step 6: Substitute the boundary conditions u(0,t) = u(10,t) = 0 into the general solution for X(x). This will lead to the determination of the constants A and B. Using the condition u(0,t) = 0, we have:
X(0) = A cos(0) + B sin(0) = A = 0
Thus, the solution for X(x) is X(x) = B sin(λx).
Step 7: Solve equation (2) to obtain the temporal part of the solution. The general solution to this equation is given by:
T(t) = Ce^(-λ²t)
where C is a constant to be determined.
Step 8: Substitute the initial condition u(x,0) = x into the product of X(x) and T(t):
X(x)T(0) = B sin(λx)C
Since u(x,0) = x, we have:
B sin(λx)C = x
Step 9: Expand the left-hand side of the equation as a Fourier sine series:
B sin(λx)C = ∑[n=1 to ∞] Bₙ sin(nπx/10)Cₙ
where Bₙ and Cₙ are constants.
Step 10: Equate the coefficients of sin(nπx/10) on both sides of the equation:
BₙCₙ = 0, for n ≠ 1
B₁C₁ = 1
Step 11: Therefore, the final solution is given by:
u(x,t) = ∑[n=1 to ∞] sin(nπx/10) e^(-n²π²t/100)
This represents an infinite series of sine functions that decay exponentially with time.
that this is the general solution, and to find the specific solution, you would need to determine the coefficients Bₙ and Cₙ based on the given initial condition and the properties of the Fourier sine series.
Know more about Fourier sine series here:
https://brainly.com/question/33181075
#SPJ11
A number that represents a property of the sample (like mean or proportion) is:____.
A number that represents the property of the sample is the statistics.
StatisticsStatistics refer to that number that describes a particular property of a sample set of numbers. It is the common property shared by all the numbers of the sample set. It involves the collection of data and information and then categorizing them according to their properties and inferences.
'Mean and proportion' is mathematical calculations that can be carried out on statistic number sets.
Mean refers to the average of the number set that is provided to us. It is calculated by adding the numbers and dividing them by the number of terms.
Proportion refers to the fraction of the number set according to some characteristics shared by the numbers.
To know more about mean and proportion,
https://brainly.com/question/24232216
#SPJ4
let (-3,-7) be a point on the terminal side of theta. find the exact values of sin theta, sec theta, and tan theta
Answer:
The exact values of sinθ = -7/√58.
The exact value of secθ = -√58/3 and
The exact value of tanθ = 7/3
Step-by-step explanation:
Given that a point on the terminal side is of an angle is (x,y) and we are given (-3, -7). So x = -3 and y = -7. The length of its terminal side is given by r = √(x² + y²) = √((-3)² + (-7)²) = √(9 + 49) = √58
We know that sinθ = y/r.
So, sinθ = y/r = -7/√58
We know that secθ = 1/cosθ = 1/x/r = r/x
So, secθ = r/x = √58/-3 = -√58/3
We know that tanθ = y/x.
So, tanθ = y/x = -7/-3 = 7/3
So, the exact values of sinθ = -7/√58.
The exact value of secθ = -√58/3 and
The exact value of tanθ = 7/3
Solve the follow
-10 < 5+
Answer:
i think its 5+
Step-by-step explanation:
How can you identify the leading coefficient and degree of a polynomial function?
The degree of the variable that appears in the polynomial has the most power. The leading term is the one with the highest degree or the one with the highest power of the variable. The coefficient of the leading term is the leading coefficient.
What is a polynomial function?In an equation such as the quadratic equation, cubic equation, etc., a polynomial function is a function that only uses non-negative integer powers or only positive integer exponents of a variable.
For instance, the polynomial 2x+5 has an exponent of 1.
A polynomial is not an expression with a variable that has fractional or negative exponents, divides by a variable, or is contained inside a radical.
The biggest power of the variable that occurs in the polynomial is its degree.
The term with the highest degree—i.e., the term with the largest power of the variable—is the leading term.
The leading coefficient is the leading term's coefficient.
Therefore, the degree of the variable that appears in the polynomial has the most power. The leading term is the one with the highest degree or the one with the highest power of the variable. The coefficient of the leading term is the leading coefficient.
Know more about a polynomial function here:
https://brainly.com/question/2833285
#SPJ4
What’s the answer? :)
A?
B?
C?
D?
Answer:
1st of all- (OFF TOPIC) you are on canvas lol
2nd- not sure, maybe B or C. Sorry if it is wrong, and I hope I could help.
5x+ 35 x=7 how do i answer this
Hi My Name Is Christine I am New on here and I need help on math I'm usually good at it but I need help please
Also before I put the question I need a Boy Named Scott They always seem to be smart So if your name is Scott HELP
5x-3x+58=?
Answer: 2x+58
Step-by-step explanation:Combine Like Terms:
=5x+−3x+58
=(5x+−3x)+(58)
=2x+58
If the first equation is multiplied by 3 and then the equations are added, the result is _____. 3x + y = 3 x - 3y = -2 10 x = 7 10 x = 11 8 x = 7.
Answer:
if the first equation 3x - 3y = -2 is multiplication by 3
therefore, 3x - 3y = -2
multiplied by 3
:9x - 9y = -6
then the equations are added,
9x - 9y = -2 + 10x + 710x + 118x + 7
9x + 10x + 710x + 118x + 9y + 7
947x + 9y = 7
can you help me this is due in 2 days ty xxx
According to the image the figures that show nets of cubes are: A and D.
How to identify the nets of the cubes?To identify the nets of the cubes we must take into account that each square represents one side of the cube. In this case, the minimum requirement is that it have 6 squares, that is, 6 sides.
Once we have identified the number of sides, we must imagine how to fold the nets to form cubes. In some of them the sides overlap so we can infer that the correct nets are: A and D.
Learn more about cube nets in: https://brainly.com/question/15499998
#SPJ1
3.
(a)
Expand and simplify 3(x - 3y) + 6y - 8x
SOME1 PLSS HELPP
Answer:
3(x - 3y) + 6y - 8x
Perform the distributive property;
3x - 9y + 6y - 8x ← Expanded form
Group like terms:
(3x - 8x) (-9y + 6y)
-5x - 3y ← Simplified form
Answer:
I believe it is -5x - 3y
Giving brainlyist to the first to answer with a correct and complete answer.
Answer:
carrect answer is : multiply 40x20
Answer:
D. Multiply 40 x 8
Step-by-step explanation:
What is an end point of a ray
Answer:
The end point of a ray is A
Step-by-step explanation:
Hope this Helps
If the lengths of the sides of triangle abc are 4, 5, and 7 feet, what is the perimeter in feet of similar triangle def whose shortest side is 12 feet?
Given,
ΔABC and ΔDEF are similar triangles.
AB = 6 feet, BC = 4 feet, AC = 7 feet
Let the shortest side of ΔDEF be EF = 12 feet.
Let DE = x and DF = y
Since, ΔABC and ΔDEF are similar,
\(\frac{BC}{EF}\) = \(\frac{AB}{DE} = \frac{AC}{DF}\)
⇒ \(\frac{4}{12} = \frac{6}{x} =\frac{5}{y}\)
On Solving,
x = 18 feet and y = 15 feet
We know,
Perimeter of a triangle = sum of all three sides
Hence, perimeter of ΔDEF = DE + EF + DF = 18 + 15 + 12 = 45 feet.
To learn more, click https://brainly.com/question/24299023
#SPJ4
PLEASE HELP ILL MARK BRAINEST!! WHAT IS THE RISE, RUN, AND F(X).
Answer:
First question (on left) f(x) = 5x-3. second question (on right) f)x) = 1/2*x
Step-by-step explanation:
rise(left) 4. run (left) 20.
rise(right) 8. run(right) 4.
r(t) = e^12t cost.i + e^12t sint.j + e^12t. k
T(π/2)=_____________
The unit tangent vector at \(\( t = \frac{\pi}{2} \) is \( T(\frac{\pi}{2}) = \frac{2\sqrt{3}}{3}\mathbf{i} + \frac{1}{3}\mathbf{j} + \frac{2\sqrt{3}}{3}\mathbf{k} \)\).
To find the unit tangent vector \(\( T(\frac{\pi}{2}) \) for the given vector function \( \mathbf{r}(t) \), where \( \mathbf{r}(t) = e^{12t}\cos(t)\mathbf{i} + e^{12t}\sin(t)\mathbf{j} + e^{12t}\mathbf{k} \), we need to evaluate \( \mathbf{r}'(\frac{\pi}{2}) \)\) and its magnitude.
First, we find the derivative of \(\( \mathbf{r}(t) \) with respect to \( t \):\( \mathbf{r}'(t) = (12e^{12t}\cos(t) - e^{12t}\sin(t))\mathbf{i} + (12e^{12t}\sin(t) + e^{12t}\cos(t))\mathbf{j} + 12e^{12t}\mathbf{k} \).Next, we evaluate \( \mathbf{r}'(\frac{\pi}{2}) \):\( \mathbf{r}'(\frac{\pi}{2}) = (12e^6 + 0)\mathbf{i} + (0 + e^6)\mathbf{j} + 12e^6\mathbf{k} \)\).
To find the magnitude of \(\( \mathbf{r}'(\frac{\pi}{2}) \), we calculate:\( |\mathbf{r}'(\frac{\pi}{2})| = \sqrt{(12e^6)^2 + (e^6)^2 + (12e^6)^2} = \sqrt{1458e^{12}} = 6\sqrt{27e^8} \)\).
Finally, we can find the unit tangent vector at \(\( t = \frac{\pi}{2} \)\) using the formula:
\(\( T(\frac{\pi}{2}) = \frac{\mathbf{r}'(\frac{\pi}{2})}{|\mathbf{r}'(\frac{\pi}{2})|} = \frac{(12e^6 + 0)\mathbf{i} + (0 + e^6)\mathbf{j} + 12e^6\mathbf{k}}{6\sqrt{27e^8}} \).Simplifying the expression, we have:\( T(\frac{\pi}{2}) = \frac{2\sqrt{3}}{3}\mathbf{i} + \frac{1}{3}\mathbf{j} + \frac{2\sqrt{3}}{3}\mathbf{k} \)\).
Learn more about unit tangent vector
https://brainly.com/question/31584616
#SPJ11
.At the last basketball game between Chester High School and Pearson High School, 240 spectators attended. Of the students who attended, 60 were 9th graders, 50 were 10th graders, 36 were 11th graders, and 40 were 12th graders. The remaining spectators were adults.How many adults attended the game?
There were 54 adults who attended the basketball game between Chester High School and Pearson High School.
To find the number of adults who attended the game, we need to subtract the number of students from the total number of spectators. The total number of spectators at the game was 240. Among them, 9th graders accounted for 60, 10th graders accounted for 50, 11th graders accounted for 36, and 12th graders accounted for 40.
To find the number of adults, we subtract the sum of student attendees from the total number of spectators: 240 - (60 + 50 + 36 + 40) = 240 - 186 = 54.
Therefore, there were 54 adults who attended the basketball game between Chester High School and Pearson High School.
Learn more about Subtraction here: brainly.com/question/13619104
#SPJ11
What is the slope of the line with this equation y = 7x - 3 ? Explain.
Answer:
7
Step-by-step explanation:
y=mx+bm=pendiente
por lo tanto:
pendiente=7
Hii!
__________________________________________________________
Answer:
Slope = 7! ^^
Step-by-step explanation:
Note that the equation is given to us in slope intercept form.
The slope intercept formula is y=mx+c.
m denotes the slope
c denotes the y intercept.
/--------------\
The slope of the line that we are working with is 7.
Remember how I said that the slope of the line y=mx+c is m?
Similarly, the slope of the line y=7x-3 is 7! ^^
--
Hope that this helped! Best wishes.
--
Which of the following statements is INCORRECT regarding the disadvantages of simulation?
a. The summary of the simulation data only provides estimates about the real system.
b. The process of developing a simulation model of a complex system can be time-consuming.
c. The larger the number of probabilistic inputs a system has, the less likely a simulation will provide the best approach for studying the system.
d. Each simulation run only provides a sample of how t
he real system will operate.
(d.) Each run of the simulation only provides a sample of the actual system's operation.
This assertion is right, not mistaken. Indeed, each simulation run is a sample of the actual system's operation. A single simulation run cannot account for all possible outcomes and variations in the real system because simulations are based on mathematical models and involve random variations.
In order to take into consideration various scenarios and variations, multiple simulation runs are typically carried out. By running numerous reenactments, specialists can assemble a scope of results and measurable data to acquire a superior comprehension of the framework's way of behaving and go with informed choices.
The analysis and confidence in the simulation study's conclusions increase with the number of simulation runs performed.
To know more about real system refer to
https://brainly.com/question/30728412
#SPJ11
mrs hough is building a raised garden next to her 13.5 ft fence so she only needs fencing to go around the other 3 sides. if the area of the garden is 121.5 sw ft how much fencing does she need
Mrs. Hough would need 31.5 feet of fencing for the other three sides of the garden.
To calculate the amount of fencing needed for Mrs. Hough's raised garden, we first need to determine the dimensions of the garden.
Since the garden is next to a 13.5 ft fence, we know that one side of the garden is 13.5 ft.
Let's assume the other two sides of the garden have lengths x and y.
The area of the garden is given as 121.5 sq ft, so we have the equation:
x × y = 121.5
To find the dimensions of the garden, we can solve this equation. One possible solution is x = 9 ft and y = 13.5 ft.
Therefore, the dimensions of the garden are 9 ft by 13.5 ft.
Now, to calculate the amount of fencing needed, we add up the lengths of the three sides (excluding the side next to the fence):
Fencing needed = x + y + x = 9 ft + 13.5 ft + 9 ft = 31.5 ft
Mrs. Hough would need 31.5 feet of fencing for the other three sides of the garden.
To know more about Equation related question visit:
https://brainly.com/question/29657983
#SPJ11
Use the Pythagorean theorem to find z. Leave your answer as a
simplified radical or as a decimal rounded to the hundredths place.
Answer:
9√5 or ≈ 20.12
Step-by-step explanation:
Using the Pythagorean Theorem, which states that c² = a² + b², you can plug in values where x is c or the hypotenuse.
x² = 18² + 9²
x² = 324 + 81
x² = 405
Then, square root to find x.
x = √81 * 5
Take out the 9
x = 9√5 (≈ 20.12)
Hope this helps! :)
Round your answer to the nearest hundredth AB=
Step-by-step explanation:
\( \sin(20) = 3 \div x\)
Multiply both sides with x :
\( x \times \sin(20) = 3\)
And divide both sides with sin(20) :
\(x = 3 \div \sin(20) = 8.771\)
Which gives us x=8,771
Answer:
AB = 6
Step-by-step explanation:
sin 20° = 3/?
\(\frac{1}{2}\) = \(\frac{3}{x}\)
cross-multiply: x = 6
DESPERATE WILL GIVE BRAILIST AND THNX
Marcus currently has $42 and plans to save an additional $5 each week to buy a pair of shoes. He made a table showing the total amount of money he will have saved for different weeks.
Number of weeks 0 2 5 8
Total amount of money ($) 42 52 67 82
Which equation represents the relationship between the number of weeks, x, and the total amount of money, y, Marcus will have saved?
A. 5x + y = 42
B. 5x−y=−42
C. x−5y=−42
D. x + 5y = 42
Answer:
y=5x+42
subtract 5x from both sides
-5x+y=42
Step-by-step explanation:
subtract 5x from both sides
-5x+y=42
multiply by -1
5x-y=-42
In standard form, Ax+By=C, the variable A cannot be a negative. However, this is not an option so go with c.
1. Latoya baked b cookies, her family ate 13 of them. Using b write an expression for the number of cookies that remained :)
Answer:
b-13
Step-by-step explanation:
I'm pretty sure this is right? Unless I'm missing something, if I am I am terribly sorry.
Solution:
Note that:
Clue: Latoya baked b cookies, her family ate 13 of them.Let's reread the clue carefully.
{Latoya baked b cookies}, {her family ate 13 of them.}
↥ ↥
b -13
If we put them together, the expression formed is b - 13.
The expression that represents the number of cookies is b - 13.
when you are designing a research study and considering what hypothesis test you might use, a common rule of thumb is to select the most powerful test. why is this a good idea? the most powerful test is the test most likely to reject the null hypothesis when it is false the most powerful test is the test least likely to result in a type i error. the most powerful test is the test least likely to reject the null hypothesis. the most powerful test is the test most likely to get the right answer.
The correct answer is, the most powerful test is the test least likely to result in a Type II error.
What is probability?
The area of mathematics known as probability deals with numerical descriptions of how likely it is for an event to happen or for a claim to be true. A number between 0 and 1 is the probability of an event, where, broadly speaking, 0 denotes the event's impossibility and 1 denotes its certainty.
In terms of hypothesis testing, the power of a test is given by the probability of rejecting a null hypothesis when it is actually false.
Also, we know that we commit a type II error when we don't reject the null hypothesis when it is actually false.
So, combining these two facts, we can infer that the most powerful test is the test where we have a high probability of rejecting a null hypothesis when it is actually false. This means that the most powerful test is given by the test that will have almost no or absolutely no type II error.
Hence, the most powerful test is the test least likely to result in a Type II error.
To know more about probability, click on the link
https://brainly.com/question/24756209
#SPJ4
Identify the domain and range of the reciprocal function y=2/x+3 +7
ANSWER:
\(\begin{gathered} \text{ Domain: }\left(-\infty\:,\:-3\right)\cup\left(-3,\:\infty\:\right) \\ \\ \text{ Range: }\left(-\infty\:,\:7\right)\cup\left(7,\:\infty\:\right) \end{gathered}\)STEP-BY-STEP EXPLANATION:
We have the following function:
\(\:y=\frac{2}{x+3}\:+7\)The domain is the input values of the function, in this case, it would be the interval of values that x can take, while the range is the output values of the function, that is, in this case, it would be the interval of values that it can take y.
In the case of a reciprocal function, the domain is affected since the denominator can never be 0 since it generates a mathematical indeterminacy, therefore, we calculate the domain by setting the denominator equal to 0, just like this:
\(\begin{gathered} x+3=0 \\ \\ x=-3 \\ \\ \text{ therefore:} \\ \\ \text{Domain: }\left(-\infty\:,\:-3\right)\cup\left(-3,\:\infty\:\right) \end{gathered}\)The range is affected by the fact that it can never be the value of 7, because the previous expression has no way of making it equal to 0, therefore the range would be:
\(\text{ Range: }\left(-\infty\:,\:7\right)\cup\left(7,\:\infty\:\right)\)Which of the following is an arithmetic sequence?
A. 0, 3, 8, 15, 24, 35, ..
B. 9, 4, -1, -6, -11, -16, ...
C. 1, 3, 6, 10, 15, 21, ..
.
D. -1, 0, 1, 0.3, 0, ...
Answer:
B is an arithmetic sequence because the number that you add or subtract between each number has to match
Which fraction and decimal forms match the long division problem?
Answer: C
Step-by-step explanation: C
2 divided into 9 parts is 2/9.
Let's' explain this visually
Take this pizza, (image below)
Let's say we have two pizzas for 8 friends (including ourselves), so naturally, we'll cut the pizza's each into 9 slices, 1 for each, now everyone gets 1/9 of a pizza, but there are two pizzas, so if we add 1/9+1/9, we'll get two ninths.
Now 2/9=0.2 repeating!
This is how I got my answer sorry for the vague explanation