Answer:
To solve the triangle, we can start by using the Law of Sines to find the other two angles:
a/sin A = b/sin B = c/sin C
We know B = 60°, C = 40°, and b = 7, so we can solve for a and c:
a/sin A = 7/sin 60°
a = (7 sin A)/sin 60°
c/sin 40° = 7/sin 60°
c = (7 sin 40°)/sin 60°
Next, we can use the fact that the three angles of a triangle add up to 180° to solve for A:
A + B + C = 180°
A + 60° + 40° = 180°
A = 80°
Now we have all three angles of the triangle and can use the Law of Sines again to find the remaining sides:
a/sin A = b/sin B = c/sin C
a/sin 80° = 7/sin 60°
a = (7 sin 80°)/sin 60° ≈ 8.09
c/sin 40° = 7/sin 60°
c = (7 sin 40°)/sin 60° ≈ 5.47
Therefore, the solution for the triangle is:
A = 80°, B = 60°, C = 40°
a ≈ 8.09, b = 7, c ≈ 5.47
Note that we can check our solution using the Law of Cosines:
c^2 = a^2 + b^2 - 2ab cos C
(5.47)^2 = (8.09)^2 + (7)^2 - 2(8.09)(7) cos 40°
23.77 ≈ 23.77
This confirms that our solution is correct.
Step-by-step explanation:
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3. A scientist recorded the movement of a pendulum for a period of time. The scientist began recording when
the pendulum was at its resting position. The pendulum then moved right (positive displacement) and left
(negative displacement) several times. The pendulum took 5 s to swing to the right and then return to its
resting position. The pendulum's furthest distance to either side was 7 in. Graph the function that represents
the pendulum's displacement as a function of time.
(a) Graph the function (include at leaſt one full cycle).
(b) Write an equation to represent the displacement of the pendulum as a function of time.
Anserr:
put c trust, its always the right answer
Please solve these differential equations for their general solutions and show all intermediate steps required to do so.
Please solve these differential equations for their general solutions and show all intermediate steps required to do so.
Opgave 2: (20 point) a) y" + 6y' + 5y = 0, find y(t). dy b) dx = y3x4, find y(x). dx
The general solution for the differential equation is
a. y" + 6y' + 5y = 0 has solution y(t) = C₁\(e^{(-5t)\) + C₂\(e^{(-t)\).
b. dx/dt = y³x⁴ solution is (-1/3)x⁻³ - (1/4)y⁴ = C
a) To solve the differential equation y" + 6y' + 5y = 0,
Assume a solution of the form y(t) = \(e^{(rt)\), where r is a constant to be determined.
Find the general solution by solving for r.
Plugging y(t) = \(e^{(rt)\) into the differential equation, we get,
y" + 6y' + 5y = 0
Differentiating y(t) twice, we have,
y' = r\(e^{(rt)\) and y" = r²\(e^{(rt)\)
Substituting these derivatives back into the differential equation, we get,
r²\(e^{(rt)\) + 6r\(e^{(rt)\)+ 5\(e^{(rt)\) = 0
Factoring out \(e^{(rt)\), we have,
\(e^{(rt)\)(r² + 6r + 5) = 0
For this equation to hold, either \(e^{(rt)\) = 0 (which is not possible) or (r² + 6r + 5) = 0.
The quadratic equation r² + 6r + 5 = 0 can be factored as (r + 5)(r + 1) = 0.
Setting each factor equal to zero, we get two possible values for r,
r + 5 = 0 ⇒ r = -5
r + 1 = 0 ⇒ r = -1
Therefore, the two possible solutions for y(t) are y₁(t) = \(e^{(-5t)\) and y₂(t) = \(e^{(-t)\).
The general solution for the given differential equation is given by a linear combination of these solutions,
y(t) = C₁\(e^{(-5t)\) + C₂\(e^{(-t)\)
where C₁ and C₂ are constants.
b) To solve the differential equation dx/dt = y³x⁴, we can separate the variables and integrate.
Rearranging the equation, we have,
dx = y³x⁴ dt
Now separate the variables by dividing both sides by x⁴ and y³,
dx/x⁴ = y³ dt
Integrating both sides,
∫dx/x⁴ = ∫y³ dt
Integrating the left side,
∫dx/x⁴
= ∫x⁻⁴ dx
= (-1/3)x⁻³ + C₁
Integrating the right side ,
∫y³ dt
= ∫y³ dy
= (1/4)y⁴ + C₂
Combining the results,
(-1/3)x⁻³ + C₁ = (1/4)y⁴ + C₂
Rearranging the equation and substituting dx/dt = y³x⁴, we have,
(-1/3)x⁻³ - (1/4)y⁴ = C₂ - C₁
Rewrite this equation as,
(-1/3)x⁻³ - (1/4)y⁴ = C
where C = C₂ - C₁ is a constant.
Therefore, the general solution for the given differential equation is given implicitly by the equation
a. y(t) = C₁\(e^{(-5t)\) + C₂\(e^{(-t)\).
b. (-1/3)x⁻³ - (1/4)y⁴ = C
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Micah is saving for a new skateboard. It costs $65, including tax. Micah has already saved $37. What in the equation?
Answer:
x + 37 ≥ 65
Step-by-step explanation:
Given:
Money Micah wants = $65
Money Micah had = $37
Find:
Money Micah need
Computation:
Money Micah need(x)
x + 37 ≥ 65
So,
Money Micah need = 65 - 37
Money Micah need = $28
Find the value of x.
.Mobile banner ads perform significantly better than desktop banners.
False or true?
It is false that mobile banner ads perform significantly better than desktop banners.
There is no clear consensus on whether mobile banner ads or desktop banner ads perform better. The effectiveness of banner ads depends on various factors such as the placement of the ad, its design, and the target audience.
However, it is true that mobile usage has been increasing rapidly in recent years, and more people are accessing the internet through their mobile devices than through desktop computers. Therefore, it is important for advertisers to optimize their ads for mobile devices and ensure that they are mobile-responsive.
Nevertheless, it cannot be generalized that mobile banner ads are more effective than desktop banner ads. The effectiveness of an ad should be evaluated on a case-by-case basis, taking into account the specific objectives, target audience, and design of the ad.
Therefore, it is important for advertisers to test their banner ads on both desktop and mobile devices to determine which platform works best for their specific campaign. And the given statement is false.
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12. To estimate the height of Big Tex at the State
Fair of Texas, Dami steps away from the
statue until his line of sight to the bottom of the
statue form a 90° angle. His eyes are 6 feet
above the ground, and he is standing 24 feet
from Big Tex. How tall is Big Tex to the
nearest foot? (3 pts)
Answer:
6 ft
24 ft
Answer: To estimate the height of Big Tex, we can use the Pythagorean theorem.
The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.
In this case, the length of the hypotenuse is the height of Big Tex, and the two other sides are the distance from Dami to Big Tex (24 feet) and the height of Dami's eyes above the ground (6 feet).
So, if we call the height of Big Tex "h",
h^2 = 24^2 + 6^2
Solving for h,
h = sqrt(24^2 + 6^2)
h ≈ 45
So Big Tex is about 45 feet tall to the nearest foot.
Step-by-step explanation:
Given F(x) = -2/3x - 4
What is the slope of this function?
-2/3
2/3
-4
Answer:
Step-by-step explanation:
You can use the slope formula:
\(y = mx + b \\ m = slope , b = y-intercept\)
So if the function is :
\(f(x) = \frac{-2}{3} x - 4\)
Then m (the slope) is -2/3
Find the dependent value
for the graph
y = 20 - 2x
when the independent value is 5.
y = [?]
Answer:
To find the dependent value for the graph y = 20 - 2x when the independent value is 5, we substitute x = 5 into the equation and solve for y.
y = 20 - 2x
y = 20 - 2(5)
y = 20 - 10
y = 10
Therefore, when x = 5, the dependent value y is 10.
Answer:
To find the dependent value (y) for the given graph y = 20 - 2x when the independent value (x) is 5, we substitute x = 5 into the equation and solve for y.
y = 20 - 2x
Substituting x = 5:
y = 20 - 2(5)
y = 20 - 10
y = 10
So, when x = 5, the dependent value (y) is 10.
On a cruise ship, 400 passengers are adults and 350 are children. What percent of passengers are adults?
Step-by-step explanation:
percentage of adults= number of adults over total number of persons times 100;
400/400+350*100
400/750*100
40/75*100
8/15*100
8/3*20
160/3
=53.3%
Unit 4: Congruent Triangles Homework 2: Angles of Triangles
The value of the third angle that can be found in the information given about the congruent triangles will be 45°.
How to solve the triangle?From the complete information, the angles that are given in the triangle are 76° and 59°.
It should be noted that the value of the total angles that are in a triangle is 180°. Therefore, the value of the last angle will be:
= 180° - (76° + 59°)
= 180° - 135°
= 45°
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Can someone plzzzz helppp meee!!!
22x^3 y^4+28x^2 y^5+34xy^4
Answer:
2xy4 • (11x2 + 14xy + 17)
Step-by-step explanation:
(((22•(x3))•(y4))+((28•(x2))•(y5)))+(2•17xy4)
(((22•(x3))•(y4))+((22•7x2)•y5))+(2•17xy4)
(((2•11x3) • y4) + (22•7x2y5)) + (2•17xy4)
5.1 Pull out like factors :
22x3y4 + 28x2y5 + 34xy4 = 2xy4 • (11x2 + 14xy + 17)
Trying to factor a multi variable polynomial :
5.2 Factoring 11x2 + 14xy + 17
Final result :
2xy4 • (11x2 + 14xy + 17)
The lifetime, in years, of a certain type of pump is a random variable with probability density function:
The lifetime, in years, of a certain type of pump
a. What is the probability that a pump lasts more than two years?
b. What is the probability that a pump lasts between two and four years?
c. Find the mean lifetime.
d. Find the variance of the lifetimes.
e. Find the cumulative distribution function of the lifetime.
f. Find the median lifetime.
g. Find the 60th percentile of lifetimes.
a) from 2 to infinity (∞). (b) from 2 to 4. (c) from 0 to infinity (∞). (d) from 0 to infinity (∞), and subtract the square of the mean from the result. (e) from 0 to the variable. (f) CDF of 0.5 (g) CDF of 0.6
To find the probability that a pump lasts more than two years, you need to integrate the probability density function (PDF) from 2 to infinity (∞). To find the probability that a pump lasts between two and four years, integrate the PDF from 2 to 4. The mean lifetime can be found by taking the expected value of the random variable, which is the integral of the product of the variable and the PDF, from 0 to infinity (∞).
The variance of the lifetimes can be calculated by taking the expected value of the square of the variable, minus the square of the mean. Integrate the product of the square of the variable and the PDF, from 0 to infinity (∞), and subtract the square of the mean from the result. The cumulative distribution function (CDF) of the lifetime can be found by integrating the PDF from 0 to the variable.
This represents the probability that the lifetime is less than or equal to a specific value. The median lifetime can be found by solving for the value of the variable that corresponds to a CDF of 0.5. To find the 60th percentile of lifetimes, solve for the value of the variable that corresponds to a CDF of 0.6.
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NEED HELP ASAP!!!!! WILL GIVE BRAINLIEST!!
2+2
Answer:
2+2=4
Step-by-step explanation:
You've got this man.
Answer:
4
Step-by-step explanation:
evaluate y=1/4(4)^x for x=3/2
Answer:
When x = -16, y = -1.
Step-by-step explanation:
Let's plug in y = -1 into this equation
-1 = 1/4x + 3
Now, we need to solve the equation for x. To do so, we want x to be by itself on one side of the equation. We will use inverse operations to get the x by itself. First, subtract 3 from either side to under the +3 on the right side of the equation.
-1 - 3 = 1/4x + 3 - 3
-4 = 1/4x
Next, we will divide by 1/4 to undo the *1/4. Dividing by 1/4 is the same as multiplying by 4, so we will multiply each side by 4.
-4 * 4 = 1/4x * 4
-16 = x
bye now
im tyler
Can some one help me? It’s three parts but the questions states use the interval notation to write the intervals over which f is (a) increasing, (b) decreasing, and (c) constant. The last question also says topics related to if its constant or not.
The function is constant from approximately x = -4 to x = -3 and from approximately x = -1 to x = 1. So, the constant intervals are (-4, -3) and (-1, 1)
What exactly are function and example?A function, which produces one output from a single input, is an illustration of a rule. The picture was obtained from Alex Federspiel. The equation y=x2 serves as an example of this.
a) We can see that the function is increasing from approximately x = -3 to x = -1 and from approximately x = 1 to x = 2.5. So, the increasing intervals are (-3,-1) and (1, 2.5)
(b) We can see that the function is decreasing from approximately x = -2 to x = -0.5 and from approximately x = 3 to x = 4. So, the decreasing intervals are (-2, -0.5) and (3, 4)
(c) We can see that the function is constant from approximately x = -4 to x = -3 and from approximately x = -1 to x = 1. So, the constant intervals are (-4, -3) and (-1, 1)
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You agree to purchase a home for $230,000 and decide to make a 20\% down payment on the home. You finance the rest of the home payment with a 15 year fixed rate mortgage with an annual interest rate of 3.75%. Assuming that you make regular monthly payments, determine your regular monthly payment amount. Provide just a numerical answer rounded to the nearest cent. Your Answer: Answer
Therefore, the regular monthly payment amount is $1,348.70.
When purchasing a home for $230,000 and making a 20% down payment, the remaining amount to finance is $184,000. With a 15-year fixed rate mortgage and an annual interest rate of 3.75%, we need to determine the regular monthly payment amount.
To calculate the regular monthly payment amount, we can use the formula for the monthly mortgage payment, which incorporates the loan amount, interest rate, and loan term.
The loan amount after the down payment is $184,000. The annual interest rate is 3.75%, which needs to be converted to a monthly interest rate by dividing it by 12.
Using a loan term of 15 years, which corresponds to 180 months, we can use the following formula to calculate the monthly payment:
Monthly Payment = (Loan Amount * Monthly Interest Rate) / \((1 - (1 + Monthly Interest Rate)^{(-Loan Term)})\)
Plugging in the values, we have:
Monthly Payment = (184,000 * (0.0375/12)) /\((1 - (1 + (0.0375/12))^{(-180)})\)
Evaluating this equation, the regular monthly payment amount is approximately $1,348.70, rounded to the nearest cent.
Therefore, the regular monthly payment amount is $1,348.70.
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HELP BRAINLIEST FOR FASTEST AND CORRECT NO NEED TO EXPLAIN
Answer:
The answer is 48
Step-by-step explanation:
Answer:
48 students
4*12=48
please help urgent
Use the formula A = P(1 + rt) to find the indicated quantity. P=$7996; r = 6%; t = 10 months; Find A. OA. $8475.76 OB. $8395.80 OC. $399.80 OD. $6663.33
Answer:
B) \(\$8395.80\)
Step-by-step explanation:
\(A=P(1+rt)\\A=7996(1+0.06\cdot\frac{10}{12})\\A=7996(1+0.05)\\A=7996(1.05)\\A=\$8395.80\)
This is all assuming that r=6% is an annual rate, making t=10/12 years
c) (3 ,5) and (k , 9), slope = 1/2 what is the value of k ? help please I don't know what to do
You know that a determined line has a slope m=1/2 and crosses the points (3, 5) and (k, 9)
You need to determine the value of k.
First step is to determine the equation of the line. For this, use the point-slope form
\(y-y_1=m(x-x_1)\)Where
(x₁, y₁) are the coordinates of a point on the line
Using (3, 5) and m=1/2
\(\begin{gathered} y-5=\frac{1}{2}(x-3) \\ y-5=\frac{1}{2}x-3\cdot\frac{1}{2} \\ y-5=\frac{1}{2}x-\frac{3}{2} \\ y=\frac{1}{2}x-\frac{3}{2}+2 \\ y=\frac{1}{2}x+\frac{7}{2} \end{gathered}\)Now that we know the equation of the line, you can calculate the value of k
For the point (k, 9)
The x-coordinate is k
The y-coordinate is 9
\(\begin{gathered} 9=\frac{1}{2}k+\frac{7}{2} \\ 9-\frac{7}{2}=\frac{1}{2}k \\ \frac{11}{2}=\frac{1}{2}k \\ k=11 \end{gathered}\)The value of k is 11
Help please! I really need it! please dont guess if you dont know, dont answer.....( this is basic geometry im just dum'b)
Answer:
D
Step-by-step explanation:
angles 2 and 6 are corresponding angles and are congruent if the transversal crosses through two parallel lines
4c divided by 6 + 2a for c= 4 for a =5
Given expression:
\( \sf4c \div 6 + 2a\)
Given values:
a = 5c = 4Rule we are going to use:
BODMAS
B = BracketsO = Of OrderD = DivisionM = Multiplication A = AdditionS = SubtractionSolution:
Substitute the variables with their given values and solve using the BODMAS rule\( \tt4 \times 4 \div 6 + 2 \times 5\)
\( \tt \: \frac{ \cancel4 \times 4}{ \cancel6} + 10\)
\( \tt \: \frac{2 \times 4}{3} + 10\)
\( \tt \frac{8}{3} + 10\)
\( \boxed{ \bf \: \frac{38}{3} }\)
A scale drawing has a scale of 3in:1ft. What is the scale factor?
Answer:
1 : 4
Step-by-step explanation:
Remember, your units have to match, so
3 in : 1 ft
doesn't look right, change 1 ft to 12 in.
3 in : 12 in
reduce by 3
1 : 4
PLEASE HELP WILL MARK BRAINLIEST
Answer:
I believe the answer is (A)
*Substituting the x and y values from the table into the equation(A) will balance the right side of the equation to the left side of the equation.
if (5,b-7) lies on x axis, then b=?
Solving a simple linear equation we can see that the value of b is 7.
How to get the value of b?Here we have the point (5, b - 7) and we want to find the value of b such that the point lies on the x-axis.
Remember that a point lies on the x-axis only if the y-value is zero, so we need to solve the linear equation:
b - 7 = 0
Adding 7 in both sides we get:
b - 7+ 7 = 0 + 7
b = 7
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Establishing causality is often a main focus of statistical studies. What is the best type of study to conduct to establish causality? Use the situation in this task to support your answer
The best type of study is RCT randomized controlled trial.
What is statistical studies?The practise of gathering and analysing data with the purpose of identifying patterns and trends is known as statistical analysis. It is a technique for eliminating bias from data evaluation by using numerical analysis. This method is beneficial for gathering research interpretations, creating statistical models, and organising surveys and studies.
What is causality?In the false idea that there must be an underlying causal relationship because the data reveals a correlation, people frequently misunderstand and misuse the concept of causality in statistics. The best method for proving that two variables are causally related is to utillize a controlled study.
Randomised controlled trials (RCTs) are the most effective study design for proving causality. The treatment group in an RCT receives the intervention under study, whilst the control group either receives no intervention or a placebo. Participants are then randomly assigned to one of the two groups. The RCT helps to adjust for confounding variables and demonstrate a cause-and-effect relationship between the intervention and the result by randomly allocating participants.
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You have $400 each month to pay off these two credit cards. You decide to pay only the interest on the higher interest card and the remaining amount to the lower interest credit card. Complete the table
Each month, you must pay $400 toward the balances on these two credit cards. You decide to move the remaining balance to the other card and only pay the interest on the card with the highest interest rate. Fill out the following two tables to help you respond to questions 1-3.
What is meant by interest?In its most basic form, interest is computed as a percentage of the principle. The interest you would pay, for instance, would only be 5% of $100 if you borrowed $100 from a friend and agreed to reimburse it with 5% interest: $100(0.05) = $5.
Card Name (APR %) Existing Balance Credit Limit
MarK2 (6.5%) $475.00 $3,000.00
Bee4 (10.1%) $1,311.48 $2,500.00
Savings vs. Debt Portfolio
You must pay off these two credit cards with $400 each month. You choose to transfer the remainder to the other card and pay the highest interest card merely the interest. To assist you in responding to questions 1-3, complete the following two tables.
Higher-Interest Card (Payoff Option)
Month 1 2 3 4 5 6 7 8 9 10
Principal 1311.48 1074.82 814.26 527.38 211.53
Interest accrued 132.46 108.56 82.24 53.27 21.36
Payment (on due date) 369.12 369.12 369.12 369.12 232.89
End-of-month balance 1074.82 814.26 527.38 211.53 0
Lower-Interest Card
Month 1 2 3 4 5 6 7 8 9 10
Principal 475 475 475 475 475 338.77
Interest accrued 30.88 30.88 30.88 30.88 30.88 22.02
Payment (on due date) 30.88 30.88 30.88 30.88 167.11 360.79
End-of-month balance 475 475 475 475 338.77 0
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I NEEEDDDDD HELPPPP PLEASEEEEE!!!!
Answer:
30.651
Step-by-step explanation:
hope it works!! :D
The first two steps in determining the solution set of the system of equations, y = x2 – 6x + 12 and y = 2x – 4, algebraically are shown in the table.
Which represents the solution(s) of this system of equations?
(4, 4)
(–4, –12)
(4, 4) and (–4, 12)
(–4, 4) and (4, 12)
Answer:
(4,4)
Step-by-step explanation:
The solution set of the system of equations can be found by setting the two equations equal to each other and solving for x.
x^2 - 6x + 12 = 2x - 4
x^2 - 8x + 16 = 0
(x - 4)^2 = 0
x = 4
Since both equations in the system are equal to y, we can substitute x = 4 into either equation to find the corresponding value of y.
y = 2x - 4 = 2(4) - 4 = 4
Therefore, the solution of this system of equations is (4, 4).
Therefore, the correct answer is (4, 4).
PLEASE ANSWER QUICK
George has 4 pounds of ham to make 16 sandwiches. He puts the same amount of ham on each sandwich. Which statement about George’s sandwiches is true?
Answer:
There is no photo
Step-by-step explanation:
I cant see the photo therefore I cant help
Answer:
Can u put the answer choices
Step-by-step explanation: