708,000 divided by 3,000 equals
Ship A receives a distress signal from the east, and ship B receives a distress signal from the same vessel from the northwest. At what location is the vessel in distress located? Describe how you arrived at your conclusion using complete sentences. You must show all work in order to receive credit.
See the attached figure.
E direction is a line which is parallel to x-axis. (blue line).
NW direction lies on a line that is at an angle of 135 degrees to the positive direction of the x axis. (red lines).
Intersection between red line and blue line will give the coordinates of the vessel in distress location which is point C (3,2)
Consider a group of people who have received treatment for a disease such as cancer. let tt be the survival time, the number of years a person lives after receiving treatment. the density function giving the distribution of tt is p(t)=ce−ctp(t)=ce−ct for some positive constant cc, and the cumulative distribution function is p(t)=∫t0p(x)dxp(t)=∫0tp(x)dx. think carefully about what the practical meaning of p(t)p(t) is, being sure that you can put it into words.
Solution :- Let X be a group of people who have received treatment for cancer ,
and t be the survival time(The number of years a person lives after receiving treatment).
Now the density function giving the distribution of t =[tex]p(t)=ce^{-ct}[/tex]
for some positive constant c.
So to know the probability of a person of the given group live not more than d days, the cumulative distribution function is given by
[tex]P(X\leq\ d )=\int\limits^d_{t_0}{ce^{-ct}\ dt[/tex] where c be any constant.
The distribution function P(t), also called the cumulative distribution function (CDF) , which tells the probability that a variate T takes a value less than or equal to a number t. And P(t)is greater than 0 and less than1
Without doing any computation, decide which has a higher probability, assuming each sample is from a population that is normally distributed with a mean equal to 100 and a standard deviation equal to 15. explain your reasoning. (a) p(90≤sample mean≤110) for a random sample of size n = 10 (b) p(90≤sample mean≤110) for a random sample of size n = 20
To decide which random sample has a higher probability, we need to consider the sample size. As the sample size increases, the sample mean tends to approach the population mean more closely. We can use the properties of the normal distribution and the formula for the standard error of the mean to calculate the probabilities for each random sample size.
Explanation:To decide which has a higher probability, we need to consider the sample size of each random sample. In general, as the sample size increases, the sample mean tends to approach the population mean more closely.
Given that each sample is from a population that is normally distributed with a mean of 100 and a standard deviation of 15, we can use the properties of the normal distribution to calculate the probabilities.
(a) For a random sample of size n = 10, the probability of the sample mean being between 90 and 110 can be calculated using the formula for the standard error of the mean:
Standard error of the mean = standard deviation / sqrt(sample size)
Using this formula, the standard error of the mean for n = 10 is 15 / sqrt(10) = 4.74.
Since the sample mean follows a normal distribution, we can use the properties of the normal distribution to find the probability:
p(90 ≤ sample mean ≤ 110) = p((90 - 100) / 4.74 ≤ (sample mean - 100) / 4.74 ≤ (110 - 100) / 4.74)
We can look up the probabilities for the z-scores using a standard normal distribution table or a calculator to find the probability for the given range.
(b) For a random sample of size n = 20, we can follow the same steps as above to calculate the probability of the sample mean being between 90 and 110.
The standard error of the mean for n = 20 is 15 / sqrt(20) = 3.35.
p(90 ≤ sample mean ≤ 110) = p((90 - 100) / 3.35 ≤ (sample mean - 100) / 3.35 ≤ (110 - 100) / 3.35)
We can again use a standard normal distribution table or a calculator to find the probability for the given range.
In a circle with a radius of 27 2/5 in., an arc is intercepted by a central angle of 7π/4 radians. What is the arc length? Use 3.14 for π and round your final answer to the nearest hundredth. Enter your answer as a decimal in the box.
For future reference, Scapazzi was correct.
The arc length will be given as the circumference of the circle is 150.56 inches long.
What is a circle?It is a locus of a point drawn at an equidistant from the center. The distance from the center to the circumference is called the radius of the circle.
In a circle with a radius of 27 + 2/5 inches.
That can be written as 27.4.
An arc is intercepted by a central angle of 7π/4 radians.
The arc length will be given as the circumference of the circle
[tex]\rm Arc \ length = \dfrac{\theta}{2\pi} 2 \pi*r\\\\Arc \ length = \theta * r\\\\Arc \ length = \dfrac{7 \pi }{4} * 27.4 \\\\Arc \ length = 150.56[/tex]
Thus, the arc length will be given as the circumference of the circle is 150.56 inches.
More about the circle link is given below.
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select the location on the number line to plot the points 8/3 and 11/3
Answer:
8/3 is between 2 and 3 above 2.5
11.3 is between 3 and 4 above 3.5
Step-by-step explanation:
8/3 converts to the decimal 2.666666... which means its located on the number line between 2 and 3 above 2.5.
11/3 converts to 3.6666.... which means its located on the number line between 3 and 4 above 3.5.
Draw a horizontal number line. Mark the point 8/3 at approximately 2.67 and the point 11/3 at approximately 3.67 to visually represent these values.
To plot the points 8/3 and 11/3 on a number line.
Draw a Horizontal Number Line
Start by drawing a horizontal line on a piece of paper or a whiteboard. This line will serve as your number line.
Make sure it's long enough to accommodate the range of values working with.
Mark the Point for 8/3 (approximately 2.67)
To plot the point 8/3 on the number line, need to find its approximate location.
To do this, you can divide 8 by 3 to calculate its decimal value:
8 ÷ 3 ≈ 2.67 (rounded to two decimal places).
Now, locate the point approximately at 2.67 on the number line, and make a small mark or dot to represent this point.
Mark the Point for 11/3 (approximately 3.67)
To plot the point 11/3 on the number line, calculate its approximate location in a similar way:
11 ÷ 3 ≈ 3.67 (rounded to two decimal places).
Locate the point approximately at 3.67 on the number line and make a small mark or dot to represent this point.
Label the Points (Optional)
label these points to indicate what they represent.
label the point at 2.67 as "8/3" and the point at 3.67 as "11/3" to provide context for the values you've plotted.
Therefore, the plotting of the points 8/3 and 11/3 on the number line is on the right side of zero between 2 and 4.
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How to find the volume of a hemispherical bowl depth h?
The area of a sector of a circle is given by the equation , 3.142S/360 where r is the radius of the circle and S is the angle measure of the sector. If Mia solved this equation for S, which of the following equations did she write?
Answer:
C.
Step-by-step explanation:
1.) A circle has a radius of 12 centimeters. Find the area of the sector of the circle formed by an angle of 25 degrees. is necessary, round the answer to two decimal places.
2.) Is the function f(theta) = sin theta + cos theta even, odd, or neither? show how
Rebekah wants to read a certain number of pages each day during summer vacation. Today, she read 204 pages, which is 136% of her goal. How many pages does Rebekah want to read each day?
Answer:
Her goal is to read 150 pages each day.
Step-by-step explanation:
Let p represent the number of pages she wants to read each day.
Then 136% of that number is 204 pages, or, in an equation,
1.36p = 204
Solving for p, we get: p = 204/1.36 = 150 pages
Her goal is to read 150 pages each day.
Annie is planning a business meeting for her company. She has a budget of $1325 for renting a meeting room at a local hotel and providing lunch. She expects 26 people to attend the meeting. The cost of renting the meeting room is $270. Which inequality shows how to find the amount, x, Annie can spend lunch for each person? A. 26x + 270 ≥ 1,325 B. 26x + 270 ≤ 1,325 C. 270x + 26 ≥ 1,325 D.270x + 26 ≤ 1,325
Answer: B. [tex]26x+270\leq1,325[/tex]
Step-by-step explanation:
Let 'x' denote the amount of money Annie can spend lunch for each person.
Given: The cost of renting the meeting room = $270
The number of people attend the meeting = 26
Then, the expression for total amount spent on lunch will be :-
[tex]\text{Total amount on lunch}=26x[/tex]
The expression for total spent by Annie will be:-
[tex]26x+270[/tex]
Since, the budget for renting a meeting room at a local hotel and providing lunch= $1325
Thus, the inequality shows how to find the amount, x, Annie can spend lunch for each person will be :-
[tex]26x+270\leq1,325[/tex]
The distance from town A to town B is divided into 8 equal parts. So far, a bus has traveled 12 Miles. How far apart are town A and town B? Explain
Town A and Town B are 1.5 miles apart.
Explanation:The distance between town A and town B can be found by multiplying the distance traveled by the number of equal parts that make up the whole distance. In this case, the bus has traveled 12 miles out of 8 equal parts. To find the total distance, we can set up a proportion:
12 miles / 8 parts = x miles / 1 part
Cross-multiplying gives us:
8x = 12 miles
Dividing both sides by 8 gives us:
x = 1.5 miles
Therefore, town A and town B are 1.5 miles apart.
Help please!!! Need to find the height!!
Write the equation of the parabola in vertex form.
vertex (0,4), point (1,-3)
f(x)=
The equation of the parabola in vertex form is f(x) = -7x^2 + 4
Explanation:To write the equation of a parabola in vertex form, we use the formula f(x) = a(x - h)^2 + k where (h, k) represents the vertex. In this case, the vertex is (0,4) so our equation becomes f(x) = a(x - 0)^2 + 4 which simplifies to f(x) = ax^2 + 4. To find the value of a, we substitute the coordinates of the point (1,-3) into the equation and solve for a. Plugging in these values, we get -3 = a(1)^2 + 4, which simplifies to -3 = a + 4. Solving for a, we find that a = -7. Therefore, the equation of the parabola in vertex form is f(x) = -7x^2 + 4.
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Lucy has been given a list of 5
bands and asked to place a vote. Her vote must have the names of her favorite and second favorite bands from the list. How many different votes are possible?
Factor
25m^100 − 121n^16
1. (5m^50 - 11n^8)^2
2. (5m^10 - 11n^4) (5m^10 + 11n^4)
3. (5m^50 - 11n^8) (5m^50 + 11n^8)
4. (5m^10 - 11n^4)^2
The correct answer is C) (5m^50 - 11n^8) (5m^50 + 11n^8)
We can tell this because of the rule regarding factoring the difference of two perfect squares. When we have two squares being multiplied, we can use the following rule.
a^2 - b^2 = (a - b)(a + b)
In this case, or first term is 25m^100. So we can solve that by setting it equal to a^2.
a^2 = 25m^100 -----> take the square root of both sides
a = 5m^50
Then we can do the same for the b term.
b^2 = 121n^16 ----->take the square root of both sides
b = 11n^8
Now we can use both in the equation already given
(a - b)(a + b)
(5m^50 - 11n^16)(5m^50 + 11n^16)
Rocky's car moves to G then it moves to B.His ride is 360 degrees
Answer:
150
Step-by-step explanation:
30+30+30+30+30=150
Also 5*30=150
Emily dropped a coin from rest, and the distance traveled by the coin is given by the formula below, where s is the distance the coin has fallen, g is a constant representing Earth's gravity, and t is the duration of time over which the coin falls. Emily measured the distance in feet, the time in seconds, and now wants to calculate the value of g. What must be the units of g?
To match the units of distance in feet and time in seconds, the units of the gravitational constant g must be feet per second squared (ft/s^2). On Earth, g is roughly 32.17 ft/s² in U.S. Customary units.
When Emily drops a coin from rest, the distance traveled by the coin (s) can be used to calculate the acceleration due to gravity (g) when the time (t) the coin took to fall is known. The formula provided suggests that distance is equal to 0.5 times gravity acceleration times the square of time (s = 0.5 * g * t²).
Given that Emily measured the distance in feet and the time in seconds, the units for g must be compatible with these measurements. Since distance is in feet and time is squared in seconds, the unit for g must be feet per second squared (ft/s²) to ensure that all units cancel out correctly, leaving us with the unit of distance in feet. On Earth's surface, the value of g using U.S. Customary units is approximately 32.17 ft/s².
Find the value of x to the nearest tenth.
10.0
6.0
9.3
4.0
Answer:
The value of x is 6
Step-by-step explanation:
Given the figure in which
DE=3x-8 and BC=20
we have to find the value of x.
By mid-point theorem which states that the line segment which is drawn to the mid-points of two sides of triangle is parallel to the third side and also half of the length of third side.
[tex]DE=\frac{1}{2}BC[/tex]
[tex](3x-8)=\frac{1}{2}\times 20[/tex]
[tex]3x-8=10[/tex]
[tex]3x=18[/tex]
[tex]x=\frac{18}{3}=6[/tex]
The value of x is 6
Option 2 is correct.
A computer and printer cost a total of 1136
. The cost of the computer is three times the cost of the printer. Find the cost of each item.
Write 24 as a product of its prime factors.
Answer:
Prime factors of 24 is 2× 3×2×2
Step-by-step explanation:
Given : Number 24.
To find: Write 24 as a product of its prime factors.
Solution : We have given that number 24
Prime number : numbers which are divisible by 1 or itself only
Example = 2, 3, 5, 7,....etc
So we will find the factor of 24 by prime factorization
24 is divisible by 1
24 ÷ 3 = 8
8 ÷ 2 = 4
4 ÷ 2 = 2
2 ÷ 2 = 1
Hence we can write 24 as 2× 3×2×2
Therefore, Prime factors of 24 is 2× 3×2×2
Roselyn wants to drive her car at a speed of 60 miles per hour for 1.251, point, 25 hours. Her car has a fuel efficiency of 15 miles per gallon. How many gallons of fuel does Roselyn need for her journey? Choose 1 answer: Choose 1 answer: A 2.52, point, 5 gallons B 3.1.25, point, 125 gallons C 0.20, point, 2 gallons D 5 gallons
The number of gallons of fuel Roselyn need for her journey is:
D. 5 gallons
Step-by-step explanation:It is given that:
Roselyn wants to drive her car at a speed of 60 miles per hour for 1.25 hours.
This means that the total distance she covers in 1.25 hours is:
[tex]60\times 1.25=75\ \text{miles}[/tex]
( Since, we know that speed is defined as the ratio of distance to time.
i.e.
[tex]Speed=\dfrac{Distance}{Time}\\\\i.e.\\\\Distance=Speed\times Time[/tex] )
Also, Her car has a fuel efficiency of 15 miles per gallon.
i.e.
She could cover 15 miles with 1 gallon of fuel.
Hence, in order to cover 75 miles.
i.e. to cover (15×5) miles she needs (1×5) gallons of fuel
i.e. she needs 5 gallons of fuel to cover 75 miles.
CAN I GET SOME HELP?!?!?!?!
I have 11 hundreds 13 tens 2 ones and 15 tenths what number am I
if i have 2 c's 2 A's 3 b's and 1 d what is my gpa and would i be able to pass 8th grade
least common denominator for 1/49 1/21 1/3
Sam's Discount Store offers a 2% discount for paying cash. How much would Joan pay if she pays cash for a set of skillets priced at $38.95?
a. 38.17
b.34.82
c.3695
Answer:
$ 38.17
Step-by-step explanation:
can someone please tell me the answer to theses 2 questions
Which is the correct input-output table for the function ?f(x)=3/x+4 HELP what are the table answers
Answer:
The correct tabe is here,
let take f(x)=y
then if
x=1,f(x)=7
x=2,f(x)=11/2
x=3,f(x)=5
x=4,f(x)=19/4
and so on so so far
If a sequence us defined recursively by f(0)= 3 and f (n+1)= -f (n) +5 for n>_ 0 then f (2) is equal to?