a) The point on the curve where the tangent is horizontal is at t = 0.
b) The points where the tangent is vertical are at t₁ = -5 and t₂ = 5.
To find the points on the curve where the tangent is horizontal, we need to find the values of t that satisfy dy/dt = 0.
a.) Differentiating y = 3(t² - 75) with respect to t, we get:
dy/dt = 6t
Setting dy/dt = 0, we have:
6t = 0
t = 0
Therefore, when t = 0, the tangent is horizontal.
b.) To find the points where the tangent is vertical, we need to find the values of t that satisfy dx/dt = 0.
Differentiating x = t(t² - 75) with respect to t, we get:
dx/dt = 3t² - 75
Setting dx/dt = 0, we have:
3t² - 75 = 0
t² = 25
t = ±5
Therefore, the points where the tangent is vertical are when t = -5 and t = 5, with t₁ = -5 and t₂ = 5.
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The question is -
Consider the curve given by the parametric equations
x = t (t²-75) , y = 3 (t²-75)
a.) Determine the point on the curve where the tangent is horizontal.
t=
b.) Determine the points t_1,t_2 where the tangent is vertical and t_1 < t_2.
t_1=
t_2=
What is the width of the terrace?
Answer:
12 feet or 4 feet.......
3x+5⁰ 2x-25⁰ supplementary angles
Answer:
x=40, ∠ACB=125, ∠ACD= 55
Step-by-step explanation:
In order to solve this, you have to find the x-value. We know that these angles are supplementary, which means that the angles, ∠ACB and ∠ACD, both add up to 180°.
With this information, we can conclude 3x+5+2x-25=180.
To solve this equation for x,
1. Combine like terms
5x-20=180
2. Add 20 to both sides
5x=200
3. Divide both sides by 5.
x=40
Now we have the x-value. All we have left to do is plug that in to both of the equations for the angles.
1. ∠ACB: 3(40)+5
120+5
∠ACB = 125
2. ∠ACD: 2(40)-25
80-25
∠ACD = 55
Answer:x=40
Step-by-step explanation:
5x-20=180
5x=200
X=40
Can someone please tell me if I’m correct, quick
Answer: I believe your answer is correct .
Answer:
yes i belive u got it right
Step-by-step explanation:
Choose the correct definition. Group of answer choices Sensitivity refers to the probability that a test correctly classifies as positive individuals who have preclinical disease. Sensitivity refers to the probability that a test correctly classifies individuals without preclinical disease as negative Specificity refers to the probability that a test correctly classifies individuals with preclinical disease as positive Specificity refers to the probability that a test correctly classifies as positive individuals who have preclinical disease.
Answer:
the probability that a test correctly classifies as positive individuals who have preclinical disease
Step-by-step explanation:
Sensitivity represents the true positive percentage
Lets take an example if there is 90% sensitivity that means there are 90% people who have the target disease considered the test positive
So according to the given options, it is the probability in which if the test is done in a correct manner so this means that the positive individuals have the preclinical disease
Therefore the first option is correct
What is the value of -5^6?
Answer:
-15625
Step-by-step explanation:
Hope this helps!
Answer:
-15,625
Step-by-step explanation:
-5^6 = -(5^6) = -(5 * 5 * 5 * 5 * 5 * 5) = -15,625
please answer this question if you are correct i will mark brainliest
Step-by-step explanation:
Since there are 4 people who answered that they had 0 number of scarves we put 4 0's in a set of numbers. Then we see that there are 2 people who have 1 scarf. so there are 2 1's and we keep on going down the line.
{0,0,0,0,1,1,2,3,3,4,5,5} there are 12 numbers here
so we add up all of them
1+1+2+3+3+4+5+5=24
then divide that number by 12 because that's how many numbers there are
24/12=2
The mean of the numbers is 2
Hope that helps :)
An unknown radioactive element decays into non-radioactive substances. In 560 days the radioactivity of a sample decreases by 36 percent.
(a) What is the half-life of the element?
half-life:
(b) How long will it take for a sample of 100 mg to decay to 55 mg?
time needed:
After taking the given data into consideration we conclude that
a) the half-life of the unknown radioactive element is approximately 1921.7 days.
b) approximately 1011.4 days, or about 2.77 years, for a sample of 100 mg to decay to 55 mg.
(a) The half-life of a radioactive element is the time needed for half of the material to decay. To find the half-life of the unknown radioactive element, we can use the fact that in 560 days, the radioactivity of a sample decreases by 36 percent. Let T be the half-life of the element. Then, we have:
[tex]0.5 = (1 - 0.36)^{(560/T)}[/tex]
Simplifying this equation, we get:
[tex]0.5 = 0.64^{(560/T)}[/tex]
Taking the natural logarithm of both sides, we get:
[tex]ln(0.5) = ln(0.64)^{(560/T)}[/tex]
[tex]ln(0.5) = (560/T) * ln(0.64)[/tex]
Solving for T, we get:
[tex]T = -560 / (ln(0.64) * ln(0.5))[/tex]
[tex]T \approx 1921.7 days[/tex]
(b) To find how long it will take for a sample of 100 mg to decay to 55 mg, we can use the half-life formula:
[tex]N = N_0 * (1/2)^{(t/T)}[/tex]
where:
N is the final amount, which is 55 mg in this case
[tex]N_0[/tex] is the initial amount, which is 100 mg in this case
t is the time it takes for the sample to decay from [tex]N_0[/tex] to N
T is the half-life of the element, which we found to be approximately 1921.7 days
Substituting the values, we get:
[tex]55 = 100 * (1/2)^{(t/1921.7)}[/tex]
Simplifying this equation, we get:
[tex]0.55 = (1/2)^{(t/1921.7)}[/tex]
Taking the natural logarithm of both sides, we get:
[tex]ln(0.55) = (t/1921.7) * ln(1/2)[/tex]
Solving for t, we get:
[tex]t = -1921.7 * ln(0.55) / ln(1/2)[/tex]
[tex]t \approx 1011.4 days[/tex]
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let {bn} be a sequence of positive numbers that converges to 1/2 . determine whether the given series is absolutely convergent, conditionally convergent, or divergent.
[infinity]Σ bn^n cos nπ / n n=1
a. absololutely convergent
b. conditionally convergent
c. divergent
The given series Σ (bnₙⁿ cos nπ)/n is conditionally convergent.
To determine the convergence of the series, we need to examine the behavior of the terms and apply the convergence tests. Given that {bₙ} is a sequence of positive numbers that converges to 1/2, we can conclude that bnₙⁿ approaches 1/2 as n approaches infinity.
Considering the term (bnₙⁿ cos nπ)/n, we have the alternating factor cos nπ which oscillates between -1 and 1 as n varies. The absolute values of the terms bnₙⁿ/n decrease monotonically to zero.
By the Alternating Series Test, if a series has alternating signs and the absolute values of its terms decrease monotonically to zero, then the series is conditionally convergent. Therefore, the given series Σ (bnₙⁿ cos nπ)/n is conditionally convergent.
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Complete question - Let {bₙ} be a sequence of positive numbers that converges to 1/2 . determine whether the given series is absolutely convergent, conditionally convergent, or divergent.
[n =1 to infinity]Σ (bnₙⁿ cos nπ)/n =1
a. absolutely convergent
b. conditionally convergent
c. divergent
A bathtub in the shape of A rectangular prism is 20 meters long 10 meters wide and 2 meters deep how much water can the bathtub hold
Answer:
Topic : CIRCLE
1. Capture/ cut outs pictures that represents a Circle then paste it in a long band paper.
2. Make a reflection in CERA form
C-Content (min. 5sentence)
E- experience(min. 5 sen.)
R-reflection (min.5 sent.)
A- Application (min.5
Find an expression of a(t) if 8t (b) (2 points) If A(4) = 30, find A(2). 1+ t2
The expression for a(t) is 8(1-t)/(1+t)² and A(2) = -8/9.
What is the expression of a(t)?An expression is a combination of numbers, variables, and operations. Expressions can be used to represent quantities, relationships, and functions. While there are different types of expression such as arithmetic expression, algebraic expression and function, this as an algebraic expression.
To determine the expression that represents a(t); we have to factor the expression 8t/(1+t²).
8t/(1+t²) = 8t/(1+t)(1-t)
Dividing by 1 - t
a(t) = 8t/(1+t)
Simplifying further;
a(t) = 8(1-t)/(1+t)²
To solve for A(2), we need to plug t = 2 into the expression;
A(2) = 8(1-2)/(1+2)²
A(2) = -8/9
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I’m not an expert at simplifying, so I need help
Answer: it's 1 1/2
please give me brainlest
Can someone plz explain how to do this
Answer:
-2
Step-by-step explanation:
First, you need to find the equation.
f(x) = -3x + b
Now we need to find the y-intercept.
f(x) = -3x + b
f(-9) = -3(1) + b
-9 = -3 + b
-6 = b
f(x) = -3x - 6
The zero of f means that f(x) = 0
f(0) = -3x - 6
f(6) = -3x
x = -2
solve eqn by factorisation method
2x squre-50x=0
Answer:
0 or 25
Step-by-step explanation:
To solve for x
we first factor
2x^2-50x=0
2x(x-25)=0
To make this equation 0 x has to be 0 or 25
100% of x is 50. *reamber is means divide*
Answer:
100% of 50 is 50
x = 50
Step-by-step explanation:
Answer:
x = 50
Remember that 100% of anything is the number itself.
Recall the following definition of an Geometric Sequence. A sequence do, 21, 22, ... is called an geometric sequence if, and only if there is a constant r such that ak = r.24-1 where k> 1. Also recall that we "claimed" the explicit formula for the nth term of the geometric sequence is given by an = no pot where n > 0. Use mathematical induction to prove that our claim is true.
To prove that the explicit formula for the nth term of a geometric sequence is given by an = a₀.rⁿ, we will use mathematical induction. Mathematical induction is a proof technique used to establish a statement or property for all natural numbers or integers greater than or equal to a starting value.
Step 1: Base Case
For n = 0, the formula gives a₀.r⁰ = a₀, which is the first term of the sequence. So, the formula holds true for the initial value.
Step 2: Inductive Hypothesis
Assume that the formula holds for some arbitrary value k, i.e., ak = a₀.rᵏ.
Step 3: Inductive Step
We need to prove that the formula also holds for k+1, i.e., a(k+1) = a₀.r^(k+1).
Using the definition of a geometric sequence, we have:
a(k+1) = r.aₖ
Now substitute the inductive hypothesis into the above equation:
a(k+1) = r.(a₀.rᵏ) = (r.a₀).rᵏ = a₀.r^(k+1)
Therefore, we have shown that if the formula holds for k, then it also holds for k+1.
Step 4: Conclusion
By the principle of mathematical induction, the explicit formula for the nth term of a geometric sequence, given by an = a₀.rⁿ, is true for all non-negative integers n.
Thus, we have proved the claim using mathematical induction.
The question should be:
Recall the following definition of an Geometric Sequence.
A sequence a₀, a₁, a₂, ... is called an geometric sequence if, and only if there is a constant r such that
ak = r.a_k_-1 where k≥ 1.
Also recall that we "claimed" the explicit formula for the nth term of the geometric sequence is given by
an = a₀.rⁿ where n≥ 0. Use mathematical induction to prove that our claim is true.
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A car travels 250 miles to Myrtle Beach; the faster it goes, the less time the trip takes.
Answer:
Well, ermm duh
Step-by-step explanation:
The faster you go, the less time it will take
please help !! A golf ball is hit into the air from a platform located 6 meters above the ground. The graph represents the height above the ground of the golf ball as a function of time.
Part A: What is the maximum height, in meters, the golf ball reaches before hitting the ground? (blank) meters
Part B:Which of the following statements describe the golf ball? Select TWO that apply.
A.)At 0 seconds, the golf ball is on the ground.
B.)The golf ball is in the air for a total of 4 seconds.
C.)The golf ball is at a height of 6 feet 2 seconds after it was hit.
D.)Between 1 and 3 seconds, the ball is falling towards the ground.
Answer:
Part A: 8 meters
Part B: B, D
Step-by-step explanation:
SQL A. Is portable among different implementations B. Is object oriented C. Is better than NoSQL D. Is based on relational algebra
SQL (Structured Query Language) is a widely used language for managing relational databases. It is portable among different implementations and based on relational algebra.
SQL is a language designed for managing and manipulating structured data in relational databases. It provides a standardized way to interact with databases and perform various operations such as querying, inserting, updating, and deleting data. One of the advantages of SQL is its portability, meaning that SQL code can be written to work with different database management systems (DBMS) as long as they support the SQL standard. This portability allows for easy migration of databases between different systems.
SQL is based on relational algebra, which is a mathematical framework for working with relational databases. It defines operations and rules for manipulating relations (tables) and performing relational queries. The foundations of SQL are rooted in the principles of relational algebra, providing a solid basis for database management.
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On day 1 Vampire
Olly slept 5 hours. On
day 2 he slept 7 hours.
By what percent did he
increase his sleeping?
Answer:
40%Step-by-step explanation:
Initial number of hours = 5Increased number of hours = 7Change:
7 - 5 = 2Percent change:
2/5*100% = 40%Find the slope will give brainliest if it is correct.
Answer:
I cannot see pictures, so I will explain how to find slope, so you can do it on your own.
Step-by-step explanation:
Find 2 coordinates on the line.
Ex: (2,3) and (4,6)
Subtract the y-coords and x-coords from each other and divide.
6-3 = 3
4-2 = 2
3/2
So the example slope is 3/2.
The 3 represents the rise, and 2 represents the run.
---
hope it helps
Can someone plz help me
73.12 m2
Step-by-step explanation:
determine triangle area.
8x12=96 96/2=48
determine area of half circle
diameter=8
radius=4
4π²/2=25.1327412287
add two areas together.
48+25.1327412287=73.1327412287
round the nearest hundredth
73.1327412287=73.12 m2
what is the the mode of April's temperatures?
A
B
C
D
Answer:
B: no mode
Explanation:
A mode is a number that occurs often in a set of data. Since all of April's temperatures are different, there is no mode.
Answer:
b because mode is the how many times a number pop up it has to be the same
Step-by-step explanation:
Please help me with this questions please please ASAP ASAP please ASAP help please please ASAP please I'm begging you please please ASAP
Answer:
Question 3: 8000
Question 4: 300
Answer:
3. 8,000
4. 300
Step-by-step explanation:
3.
2/5 * 20,000 = 2 * 20,000/5 = 2 * 4,000 = 8,000
Answer: 8,000
4.
Use a proportion.
10/2 = x/60
5/1 = x/60
x = 5 * 60
x = 300
Answer: 300
what is the greatest common factor of 20 and 50
Answer:
the answer is 10
Step-by-step explanation:
Answer: 10
Why? Because 10x5=50 and then 10x2=20 ten can be used for both of them! Hope this helps^^ please give me brainlist if you could but you don’t have too!^^
William is building a planetary path for people to walk through the planetary path will have a model of the sun and model of the planet William uses two different scales He uses 1 cm to 1000 km for the diameter of each planet and 1m to 1000000km for the distance of the sun to each planet William makes a model of planet Venus the model has a diameter of 12.1 work out the real diameter of venus
Answer:
The actual diameter of Venus is 12,100 kilometers.
Step-by-step explanation:
Since William is building a planetary path for people to walk through, and the planetary path will have a model of the sun and model of the planet, and William uses two different scales, he uses 1 cm to 1000 km for the diameter of each planet and 1m to 1000000km for the distance of the sun to each planet, if William makes a model of planet Venus and the model has a diameter of 12.1, to work out the real diameter of Venus the following calculation must be performed:
1 cm = 1000 km
12.1 cm = X km
1 = 1000
12.1 = X
12.1 x 1000/1 = X
12,100 = X
Thus, the actual diameter of Venus is 12,100 kilometers.
Experimental Probability is ___________ .
a . our prediction
b. data from our experiment
Answer:
b
Step-by-step explanation:
data from our experiment.....
I WILL GIVE BRAINLIEST!!!
consider the polynomial function q(x)=-2x^8+5x^6-3x^5+50
end behavior
Answer:
Step-by-step explanation:
ps. you can use m a t h w a y and check
it's spaced out cuz it doesn't let me write it well
Please answer this onee :C
Answer:
1
Step-by-step explanation:
Answer:
A) 1
Step-by-step explanation:
The number 1 was spun the fewest times. We know this because there is only one x above the 1, suggesting it wa spun the fewest times.
Hope it helps!!!
A binomial experiment consists of 12 trials. The probability of success on trial 5 is 0.16. What is the probability of success on trial 9?
A. 0.1
B. 0.18
C. 0.33
D. 0.25
E. 0.16
F. 0.68
A binomial experiment consists of 12 trials. The probability of success on trial 5 is 0.16. The probability of success on trial 9 is 0.16.
In a binomial experiment, there are two outcomes that are possible in each trial: a success and a failure.
A binomial experiment consists of a fixed number of trials.
The term "probability" refers to the measure of how likely an event is to happen.
The probability of success on trial 5 is 0.16.
We are required to calculate the probability of success on trial 9.
Since the experiment consists of a fixed number of trials, we can say that probability of success in each trial is the same.
Let us assume the probability of success is p.
Therefore, the probability of failure in each trial is (1-p).
The probability of success on trial 5 is 0.16.
Therefore, p = 0.16.
The probability of failure on trial 5 is
1-p = 1-0.16
1-p = 0.84
The probability of success on trial 9 is given by:
P(success on trial 9) = p
P(success on trial 9) = 0.16.
Therefore, the probability of success on trial 9 is 0.16, which is option E.
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Oscar is drving 85 miles per hour. At this rate, how many miles will he drive in 2 1/2 hours?
Answer:
212.5 miles
Step-by-step explanation: