After 20 years, the initial investment of $650 will have grown to $2,386.10
Now, let's consider the problem at hand: a $650 investment at 6.5% interest compounded continuously for 20 years. To calculate the final amount of the investment, we can use the formula:
A = P\(e^{rt}\)
where A is the final amount, P is the initial investment, e is the mathematical constant approximately equal to 2.71828, r is the interest rate (in decimal form), and t is the time (in years).
Plugging in the values given in the problem, we get:
A = 650 x \(e^{0.065 \times 20}\)
Simplifying this expression, we get:
A = 650 x \(e^{1.3}\)
Using a calculator, we can find that \(e^{1.3}\) is approximately 3.6693. Therefore, the final amount of the investment is:
A = 650 x 3.6693
A = $2,386.10
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Michelle purchases several bottles of water. Before tax is added, the total cost is $3.60 and the cost of each bottle is $1.20. How many bottles did she buy?
Answer:
3 bottles
Step-by-step explanation:
1 bottle -- $1.20
x bottles -- 3.60 (total cost)
Therefore, number of bottles -- (3.60/1.20) = 3
She bought 3 bottles.
Thenks and maek me brainliest :))
Simon drove 55 miles per hour for 4 hours then 65 miles per hour for 3 hours how far did Simon drive in all
Answer:
415 miles
Step-by-step explanation:
Start with the speed equation:
speed = distance/time
Now solve the speed equation for distance:
distance = speed × time
Apply the speed equation solved for distance to the two parts of the trip.
4 hours at 55 mph:
distance = 55 mph × 4 hours = 220 miles
3 hours at 65 mph:
distance = 65 mph × 3 hours = 195 miles
Add the two distances to find the total distance:
total distance = 220 miles + 195 miles = 415 miles
Answer: 415 miles
Answer:
415 miles
Step-by-step explanation:
Simon drove 55 miles per hour for 4 hours then 65 miles per hour for 3 hours.
How far did he drive?
d=rt
For the first part of the trip:
d = 55 * 4 = 220 miles
For the second part of the trip:
d = 65*3 =195 miles
Add the miles together
220+195 = 415 miles
what is the value of x when x:3=2.13
Answer:
The other dude was wrong :( the answer is 6.39
Step-by-step explanation:
I took the test on K12
How to attach multiple photos?
Answer:
click the paperclip
Step-by-step explanation:
you can click the paperclip and paste multiple pictures
what is the slope of the line?
Answer:
-1
Step-by-step explanation:
the slope of the line is given by the equation m=(y2-y1)/(x2-x1)
here the line passes with the coordinate (-2,0),(0,-2)
m=(-2-0)/(0-(-2))
= -2/2
= -1
Explain the difference:
4 times the sum of x and y and the sum of 4 x and y
Hello!
4 times the sum of x and y
4 * (x + y)
it's a mutliplication
the sum of 4x and y
= 4x + y
it's a sum
Answer:one is multiplying other is some.
Step-by-step explanation:
4xy and =4xy
these two are
Help ASAP please!!!!!!!!!!!
Answer:
im not sure but i think it is A...
Các mô hình h i quy sau đây có ph i mô hình tuy n tính hay không? N u là môồảếếhình h i quy phi tuy n, hãy đ i v mô hình h i quy tuy n tính?ồếổềồếa) iiiuXY++=21lnββb) iiiuXY++=lnln21ββc) iiiuXY++=1ln21ββd) eiiuXiY++=21ββe) eiiu
Triangle FGH, with vertices F(-5,-7), G(-2,-5), and H(-6,-2), is drawn inside a rectangle, as shown below.
The area of the triangle FGH is equal to 13√10 unit²
Given that the vertices;
F(-5,-7), G(-2,-5), and H(-6,-2)
We have to find the area of the triangle as;
Area of triangle = 1/2bh²
Here,
Area of triangle FGH = 1/2 (GH) (FG)²
Now,
Length of FG = √26
Length of GH = √10
Then,
Area of triangle FGH = 1/2 (GH) (FG)²
Area of triangle = 1/2 × √10 × √26²
Area of triangle = 1/2 × √10 × 26
Area of triangle FGH = 13√10
Therefore,
The area of the triangle FGH = 13√10 unit²
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Somebody help me with this
25 points ☺️
Answer:
Step-by-step explanation:
p^2-4=96 Add 4 to both sides
p^2=100 take squared root from both sides
p= squared root of 100=+ or-10
GEOMETRY 100 POINTS
Find the length of BC
Answer:
x = 16
Step-by-step explanation:
Opposite sides are equal in a parallelogram
AD = BC
5x - 12 = 3x + 20
5x - 3x = 20 + 12
2x = 32
x = 32/2
x = 16
Simplify the expression below. A. 83 B. 812 C. 84 D. 88
Answer:
there is no expression
Step-by-step explanation:
3. Penguins can swim at speeds of up to 29 feet per second. Use dimensional analysis to
convert this speed to miles per hour. 1 mile = 5280 feet. (4 pts, 1 for feet into miles, 1
seconds into hours, 1 simplified answer, 1 for units in answer.)
Answer:
Penguins can swim at a speed of 19.77 miles per hour.
Step-by-step explanation:
Since penguins can swim at speeds of up to 29 feet per second, to convert this speed to miles per hour, knowing that 1 mile is equal to 5280 feet, the following calculation must be performed:
1 hour = 60 minutes
1 minute = 60 seconds
1 hour = 60x60 seconds = 3,600 seconds
29 x 3,600 = feet per hour = 104,400
104,400 / 5,280 = miles per hour = 19.77
Thus, penguins can swim at a speed of 19.77 miles per hour.
You are given that z > 2. Write an inequality for each expression.
a) 2z+ 9
b) 3(z - 4)
c) 4+2z
d) 5(3z-2)
a) The inequality for the expression 2z + 9 is 2z + 9 > 13.
b) The inequality for the expression 3(z - 4) is 3z - 12 > -6.
c) The inequality for the expression 4 + 2z is 4 + 2z > 8.
d) The inequality for the expression 5(3z - 2) is 15z - 10 > 20.
a) To write an inequality for the expression 2z + 9, we can multiply the given inequality z > 2 by 2 and then add 9 to both sides of the inequality:
2z > 2 * 2
2z > 4
Adding 9 to both sides:
2z + 9 > 4 + 9
2z + 9 > 13
Therefore, the inequality for the expression 2z + 9 is 2z + 9 > 13.
b) For the expression 3(z - 4), we can distribute the 3 inside the parentheses:
3z - 3 * 4
3z - 12
Since we are given that z > 2, we can substitute z > 2 into the expression:
3z - 12 > 3 * 2 - 12
3z - 12 > 6 - 12
3z - 12 > -6
Therefore, the inequality for the expression 3(z - 4) is 3z - 12 > -6.
c) The expression 4 + 2z does not change with the given inequality z > 2. We can simply rewrite the expression:
4 + 2z > 4 + 2 * 2
4 + 2z > 4 + 4
4 + 2z > 8
Therefore, the inequality for the expression 4 + 2z is 4 + 2z > 8.
d) Similar to the previous expressions, we can distribute the 5 in the expression 5(3z - 2):
5 * 3z - 5 * 2
15z - 10
Considering the given inequality z > 2, we can substitute z > 2 into the expression:
15z - 10 > 15 * 2 - 10
15z - 10 > 30 - 10
15z - 10 > 20
Therefore, the inequality for the expression 5(3z - 2) is 15z - 10 > 20.
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7
Ahegartymaths
Geometry & measure Vectors > 627-Vectors (6)-magnitude of a vector > Quiz
SO
Sofs
S
If a=
* |a|=-5√/2
9
-5).² find (al, giving your answer as a surd in its simplest form
▬▬
W
r
t
y
Hi can solve this question and give me the answer please I’m desperate
Answer:
Dave is always better when I'm getting back on yours
Step-by-step explanation:
Element X decays radioactively with a half-life of 14 minutes if there are 680 grams of element X how long to the nearest 10th of a minute would it take the element to decay 17 grams
Answer:
It would take 74.5 minutes for the element to decay 17 grams.
Step-by-step explanation:
The amount of element X after t minutes is given by the follwoing equation:
\(X(t) = X(0)e^{rt}\)
In which X(0) is the initial amount of the substance and r is the decay rate.
Half life of 14 minutes.
This means that \(X(14) = 0.5X(0)\)
So
\(X(t) = X(0)e^{rt}\)
\(0.5X(0) = X(0)e^{14r}\)
\(e^{14r} = 0.5\)
\(\ln{e^{14r}} = \ln{0.5}\)
\(14r = \ln{0.5}\)
\(r = \frac{\ln{0.5}}{14}\)
\(r = -0.0495\)
So
\(X(t) = X(0)e^{-0.0495t}\)
There are 680 grams of element X
This means that \(X(0) = 680\)
\(X(t) = X(0)e^{-0.0495t}\)
\(X(t) = 680e^{-0.0495t}\)
How long would it take the element to decay 17 grams
This is t for which X(t) = 17. So
\(X(t) = 680e^{-0.0495t}\)
\(17 = 680e^{-0.0495t}\)
\(e^{-0.0495t} = \frac{17}{680}\)
\(e^{-0.0495t} = 0.025\)
\(\ln{e^{-0.0495t}} = \ln{0.025}\)
\(-0.0495t = \ln{0.025}\)
\(0.0495t = -\ln{0.025}\)
\(t = -\frac{\ln{0.025}}{0.0495}\)
\(t = 74.5\)
It would take 74.5 minutes for the element to decay 17 grams.
If the two variables in a given theory move in the same direction, which type of relationship do they share?
A negative
B. positive
C. neutral
D.l inverse
Using proportionality of variables, it is found that they are classified as positive, hence option B is correct.
What is the proportionality of variables?When two variables move in the same direction, their relation is called direct or positive.When two variables move in the different directions, their relation is called inverse or negative.If they are independent, they are neutral.In this problem, they move in the same direction, thus they are classified as positive and option B is correct.
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Answer:
positive
Step-by-step explanation:
cuanto es 1 mas 1? dende ecuaciones y detalles es para mi examen virtual please
Answer:
2
Step-by-step explanation:
1+1=2
y/15- 2/3= 4/5
Whats the answer for y
2. Melissa estimated that she would read 250 pages
last week. She read 290 pages. What is the
percent error of Melissa's estimate? Round to
the nearest whole percent.
I will give brainliest!!!
Answer:
Is it 11.6%?
Step-by-step explanation:
I divided 290/250
A farmer needs to fence a rectangular piece of land. She wants the length of the field to be 80 feet longer than the width. If she has 1080 feet of fencing material, what should be the length and width of the field?
The width of the field is 230 feet and the length is 310 feet.
Let's denote the width of the field as "x" feet.
The length of the field is 80 feet longer than the width, so it can be represented as "x + 80" feet.
To find the total amount of fencing material needed, we sum up the lengths of all four sides of the rectangular field:
2(length) + 2(width) = perimeter
Substituting the given values:
2(x + 80) + 2(x) = 1080
2x + 160 + 2x = 1080
4x + 160 = 1080
4x = 920
x = 920/4
x = 230
Therefore, the width of the field is 230 feet.
Now we can find the length by adding 80 feet to the width:
Length = Width + 80 = 230 + 80 = 310 feet.
So, the width of the field is 230 feet and the length is 310 feet.
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Write an equation in each sentence. Analyze and solve.3. Find three consecutive integers whose sum is 99. Find the integers.
Given that the Sum of three consecutive integers is:
\(99\)Let be:
- The first integer:
\(n\)- The second integer:
\(n+1\)- And the third integer:
\(n+2\)By definition, the Sum is the result of an Addition.
Therefore, in this case, you can set up the following equation:
\(n+(n+1)+(n+2)=99\)When you solve for "n", you get:
\(n+n+1+n+2=99\)\(3n+3=99\)\(3n=99-3\)\(3n=96\)\(\begin{gathered} n=\frac{96}{3} \\ \\ n=32 \end{gathered}\)Now that you know that first integer, you can determine that the other consecutive integers are:
\(n+1=32+1=33\)\(n+2=32+2=34\)Hence, the answer is:
\(\begin{gathered} 32 \\ 33 \\ 34 \end{gathered}\)Please HELP!!!
Will give 15 points!!
For a test that’s due today!!
Answer:
A
Step-by-step explanation:
For a right triangle
\(A=\frac{ab}{2} \\\frac{(10.4)(15.3)}{2} =79.56\)
This is the same as the other triangle because they are the same size because of congruency
Area of the rectangle
\(a^2+b^2=c^2\\\)
\(\sqrt{(10.4^2+15.3^2} =c\)
\(c= 18.5\)
18.5 x 7 = 129.5
Add them all up
129.5+79.56+79.56= 288.62
Create a list of steps, in order, that will solve the following equation.
taking
(a + 5)2 – 1 =3
Solution steps:
Add 1 to both sides
by
Multiply both sides by 4
1
Multiply both sides by
4
with
Subtract 1 from both sides
Subtract 5 from both sides
ру
with
Square both sides
Take the square root of both sides
tics
Answer:
a = -3
Step-by-step explanation:
Solve for a:
2 (a + 5) - 1 = 3
Hint: | Distribute 2 over a + 5.
2 (a + 5) = 2 a + 10:
(2 a + 10) - 1 = 3
Hint: | Group like terms in 2 a - 1 + 10.
Grouping like terms, 2 a - 1 + 10 = 2 a + (10 - 1):
(2 a + (10 - 1)) = 3
Hint: | Evaluate 10 - 1.
10 - 1 = 9:
2 a + 9 = 3
Hint: | Isolate terms with a to the left hand side.
Subtract 9 from both sides:
2 a + (9 - 9) = 3 - 9
Hint: | Look for the difference of two identical terms.
9 - 9 = 0:
2 a = 3 - 9
Hint: | Evaluate 3 - 9.
3 - 9 = -6:
2 a = -6
Hint: | Divide both sides by a constant to simplify the equation.
Divide both sides of 2 a = -6 by 2:
(2 a)/2 = (-6)/2
Hint: | Any nonzero number divided by itself is one.
2/2 = 1:
a = (-6)/2
Hint: | Reduce (-6)/2 to lowest terms. Start by finding the GCD of -6 and 2.
The gcd of -6 and 2 is 2, so (-6)/2 = (2 (-3))/(2×1) = 2/2×-3 = -3:
Answer: a = -3
Find the product. 8 4²/7 × ₁5 15
Answer: 519 120
Step-by-step explanation:
84*84=7056
7056/7=1008
1008*515=519 120
1. Willow Brook National Bank operates a drive-up teller window that allows customers to complete bank transactions without getting out of their cars. On weekday mornings, arrivals to the drive-up teller window occur at random, with an arrival rate of 24 customers per hour or 0.4 customers per minute.
a. What is the mean or expected number of customers that will arrive in a five-minute period?
b. Assume that the Poisson probability distribution can be used to describe the arrival process. Use the arrival rate in part (a) and compute the probabilities that exactly 0, 1, 2, and 3 customers will arrive during a five-minute period.
c. Delays are expected if more than three customers arrive during any five-minute period. What is the probability that delays will occur?
2. In the Willow Brook National Bank waiting line system (see Problem 1), assume that the service times for the drive-up teller follow an exponential probability distribution with a service rate of 36 customers per hour, or 0.6 customers per minute. Use the exponential probability distribution to answer the following questions:
a. What is the probability that the service time is one minute or less?
b. What is the probability that the service time is two minutes or less?
c. What is the probability that the service time is more than two minutes?
Answer:
1.
a. 2
b. 0.1353 probability that exactly 0 customers will arrive during a five-minute period, 0.2707 that exactly 1 customer will arrive, 0.2707 that exactly 2 customers will arrive and 0.1805 that exactly 3 customers will arrive.
c. 0.1428 = 14.28% probability that delays will occur.
2.
a. 0.4512 = 45.12% probability that the service time is one minute or less.
b. 0.6988 = 69.88% probability that the service time is two minutes or less.
c. 0.3012 = 30.12% probability that the service time is more than two minutes.
Step-by-step explanation:
Poisson distribution:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
\(P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}\)
In which
x is the number of sucesses
e = 2.71828 is the Euler number
\(\mu\) is the mean in the given interval.
Exponential distribution:
The exponential probability distribution, with mean m, is described by the following equation:
\(f(x) = \mu e^{-\mu x}\)
In which \(\mu = \frac{1}{m}\) is the decay parameter.
The probability that x is lower or equal to a is given by:
\(P(X \leq x) = \int\limits^a_0 {f(x)} \, dx\)
Which has the following solution:
\(P(X \leq x) = 1 - e^{-\mu x}\)
The probability of finding a value higher than x is:
\(P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}\)
Question 1:
a. What is the mean or expected number of customers that will arrive in a five-minute period?
0.4 customers per minute, so for 5 minutes:
\(\mu = 0.4*5 = 2\)
So 2 is the answer.
Question b:
\(P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}\)
\(P(X = 0) = \frac{e^{-2}*2^{0}}{(0)!} = 0.1353\)
\(P(X = 1) = \frac{e^{-2}*2^{1}}{(1)!} = 0.2707\)
\(P(X = 2) = \frac{e^{-2}*2^{2}}{(2)!} = 0.2707\)
\(P(X = 3) = \frac{e^{-2}*2^{3}}{(3)!} = 0.1805\)
0.1353 probability that exactly 0 customers will arrive during a five-minute period, 0.2707 that exactly 1 customer will arrive, 0.2707 that exactly 2 customers will arrive and 0.1805 that exactly 3 customers will arrive.
Question c:
This is:
\(P(X > 3) = 1 - P(X \leq 3)\)
In which:
\(P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)\)
The values we have in item b, so:
\(P(X \leq 3) = 0.1353 + 0.2707 + 0.2707 + 0.1805 = 0.8572\)
\(P(X > 3) = 1 - P(X \leq 3) = 1 - 0.8572 = 0.1428\)
0.1428 = 14.28% probability that delays will occur.
Question 2:
\(\mu = 0.6\)
a. What is the probability that the service time is one minute or less?
\(P(X \leq 1) = 1 - e^{-0.6} = 0.4512\)
0.4512 = 45.12% probability that the service time is one minute or less.
b. What is the probability that the service time is two minutes or less?
\(P(X \leq 2) = 1 - e^{-0.6(2)} = 1 - e^{-1.2} = 0.6988\)
0.6988 = 69.88% probability that the service time is two minutes or less.
c. What is the probability that the service time is more than two minutes?
\(P(X > 2) = e^{-1.2} = 0.3012\)
0.3012 = 30.12% probability that the service time is more than two minutes.
Can someone please explain how to do this problem? The websites instructions are very poor. Rewrite \(\frac{2}{x^{2} -x-12}\) and \(\frac{1}{x^{2}-16 }\) as equivalent rational expressions with the lowest common denominator.
Answer: x = -5
Step-by-step explanation:
If you factor each denominator, you can find the LCM.
\(\dfrac{2}{x^2-x-12}=\dfrac{1}{x^2-16}\\\\\\\dfrac{2}{(x-4)(x+3)}=\dfrac{1}{(x-4)(x+4)}\\\\\\\text{The LCM is (x-4)(x+4)(x+3)}\\\\\\\dfrac{2}{(x-4)(x+3)}\bigg(\dfrac{x+4}{x+4}\bigg)=\dfrac{1}{(x-4)(x+4)}\bigg(\dfrac{x+3}{x+3}\bigg)\\\\\\\dfrac{2(x+4)}{(x-4)(x+4)(x+3)}=\dfrac{1(x+3)}{(x-4)(x+4)(x+3)}\\\)
Now that the denominators are equal, we can clear the denominator and set the numerators equal to each other.
2(x + 4) = 1(x + 3)
2x + 8 = x + 3
x + 8 = 3
x = -5
a patient needs fluid and carbohydrates for nutrition. which fluids is the patient likely to be administered
Answer:
5% Dextrose
Step-by-step explanation:
Dextrose is primarily used as a carbohydrate for nutrition and as a source of fluid. Whereas Sodium chloride is primarily used as a source of fluid and electrolytes.
A patient needs fluid and carbohydrates for nutrition. The fluid that the patient is likely to be administered is TNP. The patient needs fluid and carbohydrates for nutrition. The correct option is b.
What is TNP?Total parenteral nutrition (TPN) is a feeding technique that omits the digestive system. The majority of the body's nutritional requirements are met by a specific formula administered intravenously.
When a person cannot or shouldn't receive feedings or fluids orally, the technique is utilized. The term "parenteral nutrition," sometimes known as "total parenteral nutrition," refers to the practice of administering a unique type of food through a vein (intravenously).
The treatment's aim is to treat or stop malnutrition. TPN is made up of many components that are mixed together. These components include dextrose, lipid emulsions, amino acids, vitamins, electrolytes, minerals, and trace elements.
Therefore, the correct option is b, total parenteral nutrition.
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The question is incomplete. Your most probably complete question is given below:
a. protein
b. total parenteral nutrition.
c. iodine
d. fats
Last year Nancy weighted 37 5/8 pounds. This year she weighed 42.7 pounds. How much did she gain?
Answer:
Nancy gained 5.075 pounds.
Step-by-step explanation:
5/8=0.625
37.625
42.7-37.625=5.075
I get paid $12 per hour. what is time and half for every hour over 40 hours
Answer:
1.5
Step-by-step explanation:
To find the employee's regular earnings, multiply their regular pay rate ($12) by 40 hours. Next, calculate the employee's time and a half pay rate. Multiply 1.5 by the employee's regular rate of pay.
Answer:
480 would be your answer
Step-by-step explanation: