Answer:
-4
Step-by-step explanation:
Answer: im pretty sure it is a domain
Step-by-step explanation:
how to find sample size with margin of error on ti 84
The appropriate sample size formula on the TI-84 calculator, you can determine the sample size needed to achieve your desired margin of error for estimating population parameters.
To find the sample size with a desired margin of error on a TI-84 calculator, you can use the following steps:
1. Determine the desired margin of error: Decide on the maximum allowable difference between the sample estimate and the true population parameter. For example, if you want a margin of error of ±2%, your desired margin of error would be 0.02.
2. Determine the confidence level: Choose the desired level of confidence for your interval estimate. Common choices include 90%, 95%, or 99%.
Convert the confidence level to a corresponding z-score. For instance, a 95% confidence level corresponds to a z-score of approximately 1.96.
3. Calculate the estimated standard deviation: If you have an estimate of the population standard deviation, use that value. Otherwise, you can use a conservative estimate or a pilot study's standard deviation as a substitute.
4. Use the formula: The sample size formula for estimating a population mean is n = (z^2 * s^2) / E^2, where n represents the sample size, z is the z-score, s is the estimated standard deviation, and E is the desired margin of error.
5. Plug in the values: Input the values of the z-score, estimated standard deviation, and desired margin of error into the formula. Use parentheses and proper order of operations to ensure accurate calculations.
6. Calculate the sample size: Perform the calculations using the calculator, making sure to include the appropriate multiplication and division symbols. The result will be the recommended sample size to achieve the desired margin of error.
To know more about parameters refer here:
https://brainly.com/question/29911057#
#SPJ11
Can someone help me with this I do not know where to start.
Answer:
Try and start at the line?
Step-by-step explanation:
Find the distance between the two points if rounded to the nearest tenth (-6,6) and (-3,3)
Answer:
3\(\sqrt{2}\) units
Step-by-step explanation:
Given parameters:
Coordinates = (-6,6) and (-3,3)
Unknown:
The distance between them = ?
Solution:
To find the distance between two points, we use the expression below;
D = \(\sqrt{(x_{2} - x_{1})^{2} + (y_{2} - y_{1})^{2} }\)
x₁ = -6 x₂ = -3
y₁ = 6 y₂ = 3
D = \(\sqrt{(-3 -(-6))^{2} + (3-6)^{2} }\) = \(\sqrt{18}\)
D = 3\(\sqrt{2}\) units
How many ways can I arrange 10 pairs of shoes on a shoe rack?
69 Ways___________________________
Answer:
3,628,800
Step-by-step explanation:
10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1
By using the factorial function we can interpret all the ways that the shoes can be arranged.
*The factorial function (symbol: !) says to multiply all whole numbers from our chosen number down to 1.
Ecuación raíz: voy hacer una cena con 5 amigos cada uno tiene que traer 3 platos diferentes.
¿Cuántos platos de comida tendremos en total?
Ecuación potencia: con unos amigos vamos hacer un juego de pelotas cada uno tiene 2 pelotas en cada mano.
Yo tengo 50 pelotas para jugar,
¿Cuántos amigos tengo que juntar para repartir las pelotas?
Answer:
1) Tendrian 15 platos en total, porque si cada uno trajo 3, 3*5 es 15 entonces van a ver 15 platos.
2) SI tienes 50 pelotas y cada persona tiene 2 tendrias que juntar 25 personas para repartir las pelotas, porque 50/2 es 25 asi que ocuparias 25 amigos.
Emir is standing in a treehouse and looking down at a swingset in the yard next door. the angle of depression from emir's eyeline to the swingset is 33.69°, and emir is 10 feet from the ground. how many feet is the base of the tree from the swingset? round your answer to the nearest foot.
The distance from the base of the tree from the swing sets is 15 ft
The situation forms a right angle triangle.
How to find the distance from the base of the tree to the swing set?The opposite side of the triangle formed is the distance of Emir from the ground.
Therefore, the distance from the base of the tree from the swing sets is the adjacent side of the triangle.
Hence,
tan 33.69 = opposite / adjacent
tan 33.69 = 10 / x
x = 10 / tan 33.69
x = 10 / 0.66666496431
x = 10 / 0.66666496431
x = 15.0000038265
x = 15 ft
learn more on right triangle here: https://brainly.com/question/26774610?
#SPJ1
constraints aregroup of answer choicesquantities to be minimized in a linear programming model.restrictions that limit the settings of the decision variables.input variables that can be controlled during optimization.quantities to be maximized in a linear programming model.
Constraints are restrictions that limit the settings of the decision variables in a linear programming model.
Constraints in a linear programming model are restrictions that limit the settings of the decision variables, which are input variables that can be controlled during optimization.
These decision variables are often defined by specific quantities to be maximized or minimized in the model.
Therefore, constraints are a group of answer choices or restrictions that must be considered when developing a mathematical model to optimize certain variables or quantities.
to learn more about variables click here:
brainly.com/question/29085898
#SPJ11
The US consumes an average of 5.25 million metric tons of bananas per year. There are 317 million people in the US and there are 1000 kg in 1 metric ton. It costs $2.10 per kilogram of bananas. And how much money will this be per person every day?
Consumption of Bananas per year = 5, 250, 000 metric tons
We know 1000 kg = 1 metric ton, so
Consumption of Bananas per year (in kg) = 5, 250, 000 x 1000 = 5, 250, 000, 000 kgs
Cost of Banana = $2.10 per kg
So,
Cost of all bananas = 5, 250, 000, 000 x 2.10 = $ 11,025,000,000 (per year)
Taking a year to be 365 days, let's find the cost for a day:
\(\frac{11,025,000,000}{365}=\$30,205,479.4521\)Since there are 317 million [317,000,000] people in the US, the cost per person every day is:
\(\frac{30,205,479.4521}{317,000,000}\approx\$0.0952854\)Rounding to the nearest cent,
$0.10So, the amount (in dollars) per person every day = $0.10Answer$0.10Write an equation of the line that passes through the point (6, 3) and is perpendicular to y=-1/3x+ 12.
y=3x+12
y=x+5
y=-1/3x+5
y=-1/3x+12
Answer:
A: \(y=3x+12\)
Step-by-step explanation:
To start we need to know what makes lines perpendicular. Two perpendicular lines will have opposite-reciprocal slopes, because we know that they intersect at a right angle.
Then, we need to understand the slope-intercept form of an equation. The slope intercept form is \(y=mx+b\) where \(m\) is the slope of the line and \(b\) is the y-intercept. We also know that \(x\) and \(y\) represent points on the line.
Now, since our equation is already in the correct form, we can start with finding the opposite reciprocal of the slope. To do this, all we have to do is flip the fraction upside down and multiply by -1. This means that the opposite reciprocal of \(-\frac{1}{3}\) would be \(\frac{3}{1}\) which can be written as \(3\).
Now, since we have a list of options and only one has the correct slope, we can safely choose option A.
7. Find the area of the rhombus. Express
your answer as a mixed number of
square centimeters in simplest form.
3 2/3cm
4½cm
If 3/4 gallon of paint covers 1/3 of the wall, then how much paint is needed for the entire wall?
Answer: 9/4
Step-by-step explanation:
if you were to cover the whole wall you would need 9/4 gallons.
3/4x3/1
Find the original price of a salt lamp that is $60 after a 25% discount.
The original price of the salt lapm os $80.
How to find the original price of the salt lamp?Let's assume that the original price of the salt lamp is P, if we apply a discount of x (a percentage in decimal form) then the new price will be:
P' = P*(1 - x)
Here we know that the discount is of 25%, then x = 0.25
And the final price is $60, then we can write:
$60 = P*(1 - 0.25)
Now we can solve this for P.
$60 = P*0.75
$60/0.75 = P
$80 = P
That is the original price.
Learn more about discounts at:
https://brainly.com/question/843074
#SPJ1
Which expressions are equivalent to 3/8(y + 16)
A) 3(8y+128)
B) 3(1/8y+2)
C) 3/8y + 6
D) 3/8y + 2
E) 1/8(3y+48)
Answer:
B,C, and E
Step-by-step explanation:
Multiply the stuff inside by the numbers outside
Answer:
B), C), E)
Step-by-step explanation:
Triangle PQR is formed by the three squares A, B, and C: P Squarec Area = 25 unlis? Square A Anda = 9 units R Square 8 Area - 16 units? Which statement best explains the relationship between the sides of triangle PQR?
Answer:
(PQ)2 + (QR)2 = (PR)2, because 9 + 16 = 25
Step-by-step explanation:
Answer:
(PQ)2 + (QR)2 = (PR)2, because 9 + 16 = 25
Step-by-step explanation:
If a+b+c=9 and ab+bc+ca=23 then a^3+b^3+c^3-3abc =?
Answer:
Step-by-step explanation:
a³ +b³ + c³ - 3abc =(a + b + c)(a² + b² + c² - [ab+bc+ac] )
= 9 (a² + b² + c²- 23)
) What effect does a 35-gallon fuel burn (main tanks) have on the weight and balance if the airplane weighed 2,890 pounds and the MOM/100 was 2,452 at takeoff
This will cause the center of gravity to mov aft, which could potentially affect the stability and controllability of the airplane.
To determine the effect of a 35-gallon fuel burn on the weight and balance of an airplane, we need to calculate the weight and moment changes and then adjust the total weight and moment accordingly.
Assuming that the weight of fuel is 6 pounds per gallon, 35 gallons of fuel would weigh 210 pounds \($35 \text{ gal} \times 6 \text{ lb/gal} = 210 \text{ lb}$\).
To calculate the weight change, we subtract the weight of the fuel burn (210 pounds) from the original weight of the airplane (2,890 pounds):
\($$\text{Weight change} = -210 \text{ lb}$$\)
The negative sign indicates that the weight has decreased.
To calculate the moment change, we need to multiply the weight change by the moment arm, which is the distance between the center of gravity and the reference datum. The moment arm is given by the moment/100 (MOM/100) value of 2,452 at takeoff:
\($$\text{Moment arm} =\) \(\frac{\text{MOM}}{100} = \frac{2,452 \text{ in}}{100} = 24.52 \text{ in}$$\)
Moment change = Weight change \($\times$\) Moment arm
\($$\text{Moment change} = (-210 \text{ lb}) \times (24.52 \text{ in}) = -5,149.2 \text{ in-lb}$$\)
The negative sign indicates that the moment has decreased.
To adjust the total weight and moment, we add the weight and moment changes to the original weight and moment, respectively:
\($$\text{Total weight} = 2,890 \text{ lb} + (-210 \text{ lb}) = 2,680 \text{ lb}$$\)
\($$\text{Total moment} = 2,452 \text{ in-lb} + (-5,149.2 \text{ in-lb}) = -2,697.2 \text{ in-lb}$$\)
The negative sign for the total moment indicates that the center of gravity has moved aft, which could potentially affect the stability and controllability of the airplane.
It is important to note that these calculations assume that the weight of the pilot, passengers, cargo, and any other items on board remains constant. If there are any changes to these weights, the weight and balance calculations would need to be adjusted accordingly.
To learn more about center of gravity refer here:
https://brainly.com/question/20662235
#SPJ11
2.01 × 1015 and 2.8 × 1013 which is larger
a polyhedron has all faces triangles or quadrilaterals, and $1001$ edges. what is the difference between the maximum and minimum possible numbers of faces?
Using Euler'formula, the difference between maximum and minimum possible numbers of faces is 96.
A polyhedron is a 3D shape with flat faces, straight edges, and sharp vertices (corners). "polyhedron" meaning "many" and "polyhedron" meaning "area". Therefore, when many planes are joined, they form a polyhedron.
Because all faces are triangles. So on a triangular base with triangular faces on both sides that meet at the vertex.
Therefore, the minimum number of triangular faces of a regular polyhedron is = 4
Next, the double pyramid has "2n" triangular faces. where n is a natural number greater than 2 and 'n' represents the number of sides of the base of the pyramid.
A polyhedron having equal quadrilateral faces is known as regular hexahedron.
quadrilateral faced polyhedron with total sides 100 and vertices 6 , then using Euler's formula
F + V-E = 2
=> F + 6- 100= 2 => F = 96 maximum faces possible = 96
Now the difference between maximum and minimum number of faces = 100 - 4 = 96
So the difference between maximum and minimum faces is 96.
To learn more about Polyhedron, refer:
https://brainly.com/question/27231951
#SPJ4
Which is the better buy?
Frozen Peas
Cost (dollars)
Weight (ounces)
O Brand A
A B
2
16
3
28
O Brand B
O The unit cost is the same.
The better buy is given by the following brand:
Brand A.
How to obtain the better buy?The better buy is obtained applying the proportions in the context of the problem.
A proportion is applied as the cost per ounce is given dividing the total cost by the number of ounces.
Then the better buy is given by the option with the lowest cost per ounce.
The cost per ounce for each brand is given as follows:
Brand A: 16/2 = $8 per ounce.Brand B: 28/3 = $9.3 per ounce.$8 per ounce is a lesser cost than $9.3 per ounce, hence the better buy is given by Brand A.
More can be learned about proportions at https://brainly.com/question/24372153
#SPJ1
the diagonals of an isosceles trapezoid are represented by x+10 and 2x+5.what is the value of x?
Answer:
x=5
Step-by-step explanation:
since it’s isosceles trapezoid, diagonals are equal.
x+10=2x+5
x=5
A project has an initial cost of $30 million.The project is expected to generate a cash flow of $2.85 million at the end of the first year.All the subsequent cash flows will grow at a constant growth rate of 3.85% forever in future.If the appropriate discount rate of the project is 11%,what is the profitability index of the project? a.1.917 b.1.328 c.1.387 d.1.114 ortcehov e. None of the above
Profitability index is 1.387. Thus, the correct option is (c) 1.387.
The formula for calculating the profitability index is:
P.I = PV of Future Cash Flows / Initial Investment
Where,
P.I is the profitability index
PV is the present value of future cash flows
The initial investment in the project is $30 million. The cash flow at the end of the first year is $2.85 million.
The present value of cash flows can be calculated using the formula:
PV = CF / (1 + r)ⁿ
Where,
PV is the present value of cash flows
CF is the cash flow in the given period
r is the discount rate
n is the number of periods
For the first-year cash flow, n = 1, CF = $2.85 million, and r = 11%.
Substituting the values, we get:
PV = 2.85 / (1 + 0.11)¹ = $2.56 million
To calculate the present value of all future cash flows, we can use the formula:
PV = CF / (r - g)
Where,
PV is the present value of cash flows
CF is the cash flow in the given period
r is the discount rate
g is the constant growth rate
For the subsequent years, CF = $2.85 million, r = 11%, and g = 3.85%.
Substituting the values, we get:
PV = 2.85 / (0.11 - 0.0385) = $39.90 million
The total present value of cash flows is the sum of the present value of the first-year cash flow and the present value of all future cash flows.
PV of future cash flows = $39.90 million + $2.56 million = $42.46 million
Profitability index (P.I) = PV of future cash flows / Initial investment
= 42.46 / 30
= 1.387
Therefore, the correct option is (c) 1.387.
Learn more about Profitability index
https://brainly.com/question/30641835
#SPJ11
Which is formula is not equivalent to d=rt
D/r=t
R=dt
D/t=r
D/rt=1
Answer:
r=dt is not equal to d=rt
Step-by-step explanation:
if you solve the equation in terms of r, then you get r=d/t, not r=dt
Be sure to show your work and solve for g:
G+6-3= 31
Answer:
g=28
Step-by-step explanation:
g+6=3=31
3+4=31
g+3-3=31-3
g=31-3
g=28
Answer:
28
Step-by-step explanation:
We want to isolate G so that it's by itself on one side of the equals sign. In order to do this, we need to get rid of the 6 and the 3.The first thing we do is add the -3 to both sides. Adding a negative number will eliminate it, as -3 + 3 would equal 0. We need to do this to both sides since that's the rules of algebra.Once we add the 3, we have G + 6 = 34.Now we subtract the 6 from both sides.We end up with G = 28.If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.
use the graph to answer problem
Answer:
The option you chose is the right answer which is (0,-9).
Select the correct answer from each drop-down menu.
Which system of inequalities does the graph represent? Which test point satisfies both of the inequalities in that system?
A coordinate plane linear graph on inequalities.
The system of inequalities that is represented by the graph is given as follows:
y ≤ -x + 1.y ≥ -0.75x + 0.5.How to define the system of linear inequalities?The system of linear inequalities is defined with linear functions, which have the slope-intercept format given as follows:
y = mx + b.
In which the parameters are given as follows:
m is the slope, representing the change in y when x is increased by one.b is the y-intercept, representing the value of y when the graph of the function crosses the y-axis.For the upper bound of the inequality, we have that the linear function:
Has a slope of -1, as when x increases by one, y decreases by one.Has an intercept of 1, as when x = 0, y = 1.Then the upper bound of the inequality has the definition given by:
y ≤ -x + 1.
For the lower bound of the inequality, we have that the linear function:
Has a slope of -0.75, as when x increases by four, y decreases by three.Has an intercept of 0.5, as when x = 0, y = 0.5.Hence the lower bound of the inequality has the definition given by:
y ≥ -0.75x + 0.5.
More can be learned about a system of inequalities at https://brainly.com/question/9290436
#SPJ1
Evaluate each expression if d = –24, e = –4, & f = 8.
f+8/-4
Answer:
d=-28 and e=-20
Step-by-step explanation:
d×1=-24×1=e=4
d=-24-4=-28
What is the mean of the modes of the given set of numbers 54 55 55 55 56 57 57 57 58 and 59?
56.6 years is the mean of the modes of the given set of numbers.
What are the mean, median, and example?
The most frequent number, or the one that happens the most frequently, is known as the mode.
Example: Since the number 2 appears three times, more than any other number, it is the mode of the numbers 4, 2, 4, 3, and 2.
The mean is calculated by adding together all the values
= (54+54+54+55+56+57+57+58+58+60+60
= 623
= 56.6 years.
Learn more about mean in mode
brainly.com/question/6813742
#SPJ4
Can someone solve and explain this for me?
Answer:
22.5
Step-by-step explanation:
A dilation is a non rigid transformation which shrink or stretch a figure.
If the scale factor, b>1, the figure will grow
If the scale factor is less than 1, the figure will shrink
The scale factor is 1.5 so the figure will grow.
A dilation about a scale factor makes both figures porportional assuming we know all corresponding angles are congruent. So this means we just multiply PQ by 1.5 to get P'Q'
\(15 \times 1.5 = 22.5\)
PLEASE HELP WITH BOTH OF THESE QUESTIONS ASAP! I WILL REWARD YOU BRAINLIEST
1. Paul has $40 more than Max. Jane has twice as much as Max. All together they
have a total of $296. How much money does Max have?
2. The second of three numbers is 8 less than the first. The third number is twice the
second. The sum of the three numbers is 68. Find the three numbers.
Answer:
$64 and 23, 15, 30
Step-by-step explanation:
1. So we can say Max has x dollars. So Paul would have 40+x and Jane has 2x. x+40+x+2x=296 => 4x+40=296 => 4x=256 => x=64
So Max has $64.
2. So the first number can be x. The second number will be x-8 and the third will be 2x-16. x+x-8+2x-16=68 => 4x-24=68 => 4x=92 and x=23.
So 23, 15, 30
Lindsay used two points, (x 1, y 1) and (x 2, y 2), to find the equation of the line, y = mx + b, that passes through the points. First, she used the definition of slope and determined that the value of m is StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction. Given this information, which expression must represent the value of b?
y 1 minus (StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction) (x 1)
y 1 minus (StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction) (x 2)
y 1 + (StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction) (x 1)
y 1 + (StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction) (x 2)
Answer:
The answer is A
Step-by-step explanation:
Answer:
A
Step-by-step explanation: