Answer:
Step-by-step explanation:
The wood is (8/9) foot long. If cut into 4 pieces, each piece would be (8/9)/4 foot long.
(8/9)/4
((8/9)(1/4)= 8/36 or 2/9 foot long for each piece.
If he sells all 4 pieces for a total of $10, he will charge $10/4) = $2.50 each.
please answer question 98 please!
thanks
a hypothesis test is conducted at the 0.05 level of significance to test whether or not the population correlation is zero. if the sample consists of 41 observations and the correlation coefficient is 0.60, what is the computed value of the test statistic? round to two decimal places.
The computed value of the test statistic is 4.65 or 4.7
Information given in the query:
significance level = 0.05
Sample size is 41 observations, and the correlation value is 0.60.
Now,
Using the formula, the test statistic to determine whether the population correlation is zero is provided.
:
t =[tex]r\sqrt{n-2} /\sqrt{1-r^{2} }[/tex]
on substituting the respective values, we get
test statics , t = 4.65
or
t=4.7
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a certain area of the eastern united states is, on average, hit by 6 hurricanes a year. find the prob- ability that in a given year that area will be hit by (a) fewer than 4 hurricanes; (b) anywhere from 6 to 8 hurricanes.
By applying probability method in a Poisson distribution, we find out that the probability that in a given year that area will be hit by fewer than 4 hurricanes is 0.1512 and the probability that in a given year that area will be hit by anywhere from 6 to 8 hurricanes is 0.4015.
It is given that -
On an average, Eastern United States is hit by 6 hurricanes in a year.
We have to find out -
(a) Probability that in a given year that area will be hit by fewer than 4 hurricanes
(b) Probability that in a given year that area will be hit by anywhere from 6 to 8 hurricanes
This is a case of probability which relates to Poisson distribution that provides probability of any random event that occurs within a specific time interval.
Let us assume the number of hurricanes is represented by [tex]X[/tex]. The Poisson distribution can be represented as -
[tex]P(X) = \frac{(lambda)^{X}*e^{-lambda}}{X!}[/tex] -------(1)
Here, [tex]X\\[/tex] = 1,2,3,...
lambda = Average = 6 (in this question)
[tex]e[/tex] = 2.718
(a) Probability that in a given year that area will be hit by fewer than 4 hurricanes
[tex]P(X < 4) = P(X=0) +P(X=1)+P(X=2)+P(X=3)\\= \frac{6^{0}*e^{-6}}{0!}+\frac{6^{1}*e^{-6}}{1!}+\frac{6^{2}*e^{-6}}{2!}+\frac{6^{3}*e^{-6}}{3!}\\=0.0025+0.0149+0.0446+0.0892\\=0.1512[/tex]
Thus, the probability that in a given year that area will be hit by fewer than 4 hurricanes is 0.1512.
(b) Probability that in a given year that area will be hit by anywhere from 6 to 8 hurricanes
[tex]P(6\leq X\leq 8)=P(X=6)+P(X=7)+P(X=8)\\=\frac{6^{6}*e^{-6} }{6!}+\frac{6^{7}*e^{-6} }{7!}+\frac{6^{8}*e^{-6} }{8!}\\=0.1606+0.1376+0.1033\\=0.4015[/tex]
Thus, the probability that in a given year that area will be hit by anywhere from 6 to 8 hurricanes is 0.4015.
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ANSWER ASAP For a ride on a rental scooter, Kevin paid an eight dollar fee to start the scooter +6 cents per minute of the ride. The total bill for Kevin’s ride was $14.36 for how many minutes did Kevin ride the scooter.
Answer:
106 seconds
Step-by-step explanation:
14.36-8=$6.36 $6.36=636 cents so 636/6=106 so 106 seconds
Find the equation of the tangent at f(x) at x=0
Given:
The function
[tex]f(x)=\frac{2x}{x^2+1}[/tex]Required:
Find the equation of the tangent at f(x) at x=0.
Explanation:
The slope of f(x),
[tex]f^{\prime}(x)=\frac{2(-x^2+1)}{(x^2+1)^2}[/tex]Now, the slope of function at x = 0 is f'(x) = 2.
The line with slope m = 2 and passing through (0, 0).
[tex]f(x)=2x[/tex]Answer:
Equation of tangent of the function at x = 0, f(x) = 2x.
Draw a polygon with vertices R(-4, 2), S(2, 2), T(2, -2), and U(-4, -2). What is the perimeter, in units, of polygon RSTU? Draw a polygon with vertices R(-4, 2), S(2, 2), T(2, -2), and U(-4, -2). What is the perimeter, in units, of polygon RSTU?
Answer:
The perimeter of rectangle RSTU is 20 unitsStep-by-step explanation:
Given Vertices R(-4, 2), S(2, 2), T(2, -2), and U(-4, -2).To find The perimeter of the RSTUSolutionPlot the points, we see it is a rectangle.
Side lengths are:
RS = TU = 2 - (-4) = 6, the difference of x-coordinates,ST = RT = 2 - (-2) = 4, the difference of y-coordinates.The perimeter is:
P = 2(l + w)P = 2(6 + 4) = 2(10) = 20 unitsThe perimeter of polygon RSTU is
How to find distance between straight line?A straight line connects any two places with the smallest distance possible. The distance formula can be used to get this distance. It is possible to define the distance between two positions (x 1, y 1) and (x 2, y 2) as d=√(x2-x1)² + (y2 - y1)².
Distance between R and S is;
√(2+4)² + (2 - 2)²= 6 units
Distance between S and T is;
√(2-2)² + (-2 - 2)²= 4 units
Distance between T and U is;
√(-4+-2)² + (2 - 2)²= 6 units
Distance between T and U is;
√(-4+4)² + (2 + 2)²= 4 units
The total perimeter is of polygon is:
6+4+6+4 = 20 units
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Evaluate. Write your answer as a whole number or as a simplified fraction.
Submit
Answer:
1 / 121
Step-by-step explanation:
4^0 / 11^2
= 1 / 11^2
= 1 / 121
!!20 Points!! Solve using augmented matrices.
x+y=1
3x-y=7
a researcher separated the people in a population into three political categories: democrat, republican, or independent. she then selected a random sample from each of these three groups. what kind of sample did she select?
The researcher makes use of stratified sampling method to select a random sample from each of the three groups mentioned.
It is given to us that -
A researcher separated the people in a population into three political categories:
Democrat
Republican
or, Independent.
It is also mentioned that she then selected a random sample from each of these three groups.
We have to determine the kind of sample she selected.
In this case, stratified sampling is used by the researcher to select a random sample.
Stratified sampling is a type of probability sampling method where the total population is segmented into homogenous groups to successfully complete the sampling technique.
Here we see that the researcher has separated the total population into homogenous groups of democrat, republican, or independent.
From these homogenous groups, she selected random samples.
Thus, the kind of sample selected by the researcher is stratified sampling.
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Garth is baking cookies for his class! Once he
removes the cookies from the oven, the
temperature of the cookies (in °F) can be
modeled as a function of time (in minutes):
f(x) = 278(0.58)* + 72.
After 5 minutes, the cookies will be
°F (round to one decimal place).
Answer:
7358.84
Step-by-step explanation:
Can someone help me with this please?
The output of the linear function is -n+3 when the input is n.
What is a slope?The slope of a line can be used to calculate its steepness. The slope or gradient of a line is a number that indicates its direction and steepness.The slope is calculated by dividing the vertical change by the horizontal change between any two distinct points on a line. The ratio is sometimes written as a quotient, which produces the same number for every two distinct points on the same line.How to find the output of the linear function?A linear equation is given by ,
f(x) = mx+ c ---(1)
From the table,
x value increases by 1
y value decreases by 1
The function's slope, or the coefficient that converts an increase in x to an increase in y, is represented by the letter m.So, the coefficient slope(m) magnifies the decrease by 1Substituting slope m = - 1 in (1)
f(x) = -x+ c ---(2)
Substitute (1, 2) in (2)
2 = -1 +c
c = 2 + 1
c = 3
Substitute slope m and c in (2)
f( x ) = - x + 3
When input is n output is given by,
f(n) = - n + 3
The output of the linear function is -n+3 when the input is n.
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How to search question up on this?
Answer:
find search bar
Step-by-step explanation:
see answer
Maria runs of a mile every 8 minutes. Althea runs 2 miles every of an hour. Who runs ata faster 2 3 1 3 speed – Maria or Althea? Explain your reasoning.
The fact that Maria runs of a mile every 8 minutes means that we runs faster.
How to calculate the speed?The speed is measured as the distance with respect to the time. This will be illustrated thus:
Maria runs of a mile every 8 minutes. Althea runs 2 miles every of an hour. It should be noted that an hour is 60 minutes. That means the she runs 1 mile in (60 / 2) = 30 minutes.
In this case, Maria runs faster. This is because of her speed.
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Math
Show your solution please the question is in the picture
Answer: A) x^2+y^2 B) x^3+y^3 C) a^2b^2c^2 D) c^2/d^2
Step-by-step explanation:
For A, you add all the powers. This is because the bases are the same. Any number or letter without a visible power on top most likely means that is has a power of 1. Because this is a multiplication question, you have to add the powers. (Example n*n = n^2 or n^3*n^7 = n^10)
This is same for B.
For C, you multiply abc by abc so it's a*a, b*b, c*c. This is because they are inside a bracket. Anything inside the bracket that has a power outside the bracket is multiplied by itself.
For D, you multiply c and d so it's c*c, d*d. This is the same as C.
Please help!! I’ve been struggling
Explain how to solve this question by multiplying, dividing, adding, or subtracting both sides by 2
Answer:
x=16
Step-by-step explanation:
x/2 = 8
Multiply both sides by 2
x=16
:] Hope this helps
the answer would be x=16
you would multiply both sides by 2
A summer camp is organizing a hike and needs to buy granola bars for the campers. The granola bars come in small boxes and large boxes. Each small box has 10 granola bars and each large box has 12 granola bars. The camp bought a total of 9 boxes that have 100 granola bars altogether. Write a system of equations that could be used to determine the number of small boxes purchased and the number of large boxes purchased. Define the variables that you use to write the system.
The system of equations that could be used to determine the number of small boxes purchased and the number of large boxes purchased is b + s = 9 and 10s + 12s = 100
What is an equation?A mathematical equation is the statement that illustrates that the variables given. In this case, two or more components are taken into consideration to describe the scenario.
Let the small box be represented as s.
Let the big box be represented as b.
Each small box has 10 granola bars and each large box has 12 granola bars. The The camp bought a total of 9 boxes that have 100 granola bars altogether.
The equation will be:
b + s = 9
10s + 12s = 100
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Answer:
10x + 12y = 100
x + y = 9
Step-by-step explanation:
Define Variables:
Let x = the number of small boxes purchased
Let y = the number of large boxes purchased
Each small box has 10 granola bars, so small boxes have 10x granola bars.
Each large box has 12 granola bars, so large boxes have 12y granola bars. Therefore, the total number of granola bars 10x + 12y equals 100:
10x + 12y = 100
Since a total of 9 boxes were purchased, we know x + y must equal 9.
x + y = 9
What is the operation rule from number of ounces of flour to number of cupcakes?
Please use the graph above.
(A.) Multiply by 3
(B.) Multiple by 2
(C.) Add 8
(D.) 2
Answer: (B) Multiply by 2
Step-by-step explanation:
For every ounce of flour, 2 cupcakes can be made.
Just 5 and 6! Please!!✨
The three statement true about the the distance of a dog from a post are-
f(0) = 1.5f(60) = 4f(t) < 5What is termed as the function notations?Function notation is a method of representing a function utilizing symbols and signs.The most common function notation is f(x), which is read as "f" of "x." In this case, the letter x enclosed in parentheses, as well as the entire symbol f(x), represent the domain set as well as range set, respectively.For the given graph in the question,
Function f gives the distance of a dog from a post, in feet, as a function of time, t in seconds, since its owner left.
The time is denotes on the x axis and the distance covered by the dog on the y axis.
This can be described using the function as.
f(t) = d
Consider values from graph.
When, t = 0, d = 1.5 feet
Function notation ; f(0) = 1.5 ......statement 1
When t = 60, d = 4 feet
Function notation ; f(60) = 4 ......statement 2
Now, the maximum value is 5.
Thus, f(t) < 5 .....statement 3
Therefore, the three statement are formed.
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The correct question is -
Write three statement that are true about this situation. Use function notations.
Function f gives the distance of a dog from a post, in feet, as a function of time, t in seconds, since its owner left.
Use the = sign in at least one statement and < sign in another statement.
98
7. A bag contains 100 marbles. Some are red and the rest are blue. If there are no
more than 12 times as many red marbles as blue marbles in the bag, at most how
re in the bag? At least, how many blue marbles are in the
many red marbles are
bag?
At least 84 blue marbles and 7 red marbles are there in the bag.
Let the bag contain x red marbles therefore there are 12x blue marbles.
Therefore according to the question,
12x + x = 100
13x = 100
= 100/13
=7.69 approx
Which is not possible as the no,of marbles cannot be in decimals therefore there must be atleast 7 marbles of red colour and 84 blue marbles.
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0.8 divided by 0.6 then round to nearst hundredth
Answer: 1.33
Step-by-step explanation:
0.8 divided by 0.6= 1.33333333333
3 is in the hundredths place and 3 is in the thousandths place.
Since the digit in the thousandths place (3) is less than 5, the digit in the hundredths place (3) does not change.
The digits to the right of the hundredths place are dropped.
1.33333333 rounded to the nearest hundredth (two decimal places) = 1.33.
please quickkkk :((((
According to given function the final value is [tex]$f=\frac{\sum_{k=1}^{\infty} \frac{1}{k^{x+i y}}(x-i y)}{x^2+y^2} ; \quad x \neq-i y$[/tex]
[tex]$$f(x+i y)=\sum_{k=1}^{\infty} \frac{1}{k}(x+i y)$$[/tex]
[tex]$$f(x+i y)=\sum_{k=1}^{\infty} \frac{1}{k^{x+i y}}$$[/tex]
Divide both sides by [tex]$x+i y ; \quad x \neq-i y$[/tex]
[tex]\frac{f(x+i y)}{x+i y}=\frac{\sum_{k=1}^{\infty} \frac{1}{k^{x+i y}}}{x+i y} ; \quad x \neq-i y$$[/tex]
Simplify
[tex]\frac{f(x+i y)}{x+i y}=\frac{\sum_{k=1}^{\infty} \frac{1}{k^{x+i y}}}{x+i y}$$[/tex]
Simplify[tex]$\frac{f(x+i y)}{x+i y}: f$[/tex]
Simplify [tex]$\frac{\sum_{k=1}^{\infty} \frac{1}{k^{x+i y}}}{x+i y}: \frac{\sum_{k=1}^{\infty} \frac{1}{k^{x+i y}}(x-i y)}{x^2+y^2}$[/tex]
[tex]f=\frac{\sum_{k=1}^{\infty} \frac{1}{k^{x+i y}}(x-i y)}{x^2+y^2} ; \quad x \neq-i y$$[/tex]
[tex]f=\frac{\sum_{k=1}^{\infty} \frac{1}{k^{x+i y}}(x-i y)}{x^2+y^2} ; \quad x \neq-i y$$[/tex]
The core concept of mathematics' calculus is functions. The unique varieties of relations are the functions. In mathematics, a function is represented as a rule that produces a distinct result for each input x.
In mathematics, a function is indicated by a mapping or transformation. Typically, these functions are identified by letters like f, g, and h. The collection of all the values that the function may input while it is defined is known as the domain. The entire set of values that the function's output can produce is referred to as the range. The set of values that could be a function's outputs is known as the co-domain.
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PLEASE HELP ME! QUICK!
The volume of the given triangular prism to the nearest tenth is; 171.5 in³
What is the Volume of the triangular prism?
The volume of a triangular prism of the kind given to us is expressed as;
Volume of a triangular prism = area of base triangle × length of the prism
Now, the formula for area of base triangle is;
Area = 1/2 * base * height
From the question, we have;
base = 9.8 in
height = 14 in
Now, the length of prism is 2.5 inches. Thus;
Volume of prism = (1/2 * 9.8 * 14) * 2.5
Volume of prism = 171.5 in³
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El valor de x que se cumple con 6x-10=2 es
Answer:
the answer is 2
Question 4 options:
Premises:
If I'm a student, then I go to school. If I go to school, then I learn.
Conclusion:
If I'm a student, then I learn.
This is an example of the Law of
The law of mathematical logic that was used to derive the given conclusion is; Law of Syllogism
What is the Law of Syllogism?The law of syllogism is defined as a type of logical argument using deductive reasoning.
Now, In mathematical logic, the Law of Syllogism states that if the following two statements are true:
(1) If a , then b .
(2) If b , then c .
Then we can derive a third true statement:
(3) If a , then c .
Now, applying that law to our question, we see that;
1) If I'm a student, then I go to school.
2) If I go to school, then I learn.
Then we can derive a third true statement:
3) If I'm a student, then I learn.
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is 13 over 12 a proper or an improper fraction?
Step 1
An improper fraction is a fraction in which the numerator(top number) is greater than or equal to the denominator ( the bottom number)
Step 2
Conclude based on step 1
Hence
[tex]in\text{ }\frac{13}{12}\text{ the numerator 13 is bigger than the denominator 12, th}erefore\text{ it is an improper fraction}[/tex]Therefore the right answer is an improper fraction
What is the slope shown below?
Answer:
5/8
Step-by-step explanation:
Slope = rise/run
In this problem:
rise = 5
run = 8
Therefore, Slope = 5/8
What is the absolute value of −1/4 ?
Plot your answer on the number line.
Answer:
1/4
Step-by-step explanation:
Hope this helps!
can someone tell me if im right?
Travis rents an apartment in a historic, all-brick building downtown. The value of the belongings in the apartment is about $11,000. If Travis wishes to insure his belongings while renting, how much will he have to pay for insurance per year? Use the table above to solve.
I did:
it fell under 0.39 for building and 0.43 for contents so I did
0.39 x 12=4.68 then added the 100 dollar bonus and got $104.68
The amount of insurance that Travis will have to pay for the year is of:
$47.3.
What is the amount of insurance that Travis has to pay?He is renting the apartment, in which the belongings are worth $11,000, hence the insurance will be paid over that amount.
The number of hundredths in $11,000 is given by:
11000/100 = 110.
He pays an insurance of $0.43 for each $100 in belongings, hence the total insurance is of:
0.43 x 110 = $47.3.
There is no information regarding the value of the building, hence we are going to consider that he does not pay insurance for the building.
This insurance was taken from the table, as the apartment is in the city (downtown), and all brick, hence the coefficient is of 0.43.
Missing informationThe table with the rates is given by the image at the end of the answer.
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need answer asap please
The graph of the defined piece-wise function is sketched at the end of the answer.
What is a piecewise-defined function?A piecewise-defined function is a function that has different definitions, depending on the input of the function.
In the context of this problem, the function has three definitions, as follows:
To the left of x = -3. (x <= -3).Between x = -3 and x = 4. (-3 < x < 4).To the right of x = 4. (x >= 4)For the first definition, to the left of x = -3, the function assumes a constant value of 3, hence it is an horizontal line at y = 3.
For the second definition, between x = -3 and x = 4, the function is a increasing linear function, with intercept 1 and slope 2, due to the rule y = 2x + 1.
For the third definition, to the right of x = 4, the function assumes a constant value of -2, hence it is an horizontal line at y = -2.
With each of these definitions, the graph of the function is given at the end of the answer.
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What will be the location of T′ in the image trapezoid S′T′U′V′? (10, −1) (10, 1) (13, 1) (13, −1)
By translating trapezoid S′T′U′V 7 using the same translation rule, the location of T′ in the image trapezoid S′T′U′V′ is: D. (13, -1)
The types of transformation.Generally, there are four (4) main types of transformation and these include the following:
ReflectionDilationRotationTranslationWhat is a translation?In Geometry, a translation can be defined as a type of transformation which moves every point of a geometric figure or object in the same direction, as well as for the same distance.
By critically observing the graph (see attachment), we can logically deduce that rectangle JKLM was transformed to rectangle J'K'L'M' by translating it 7 units to the right and 5 units up.
Next, we would apply the same translation rule to T' which is located at point (6, -6) as follows:
(x, y) → (x + 7, y + 5)
Point T (6, -6) → Point T' = (6 + 7, -6 + 5) = (13, -1)
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Complete Question:
Rectangle J'K'L'M' shown on the grid is the image of rectangle JKLM after transformation. The same transformation will be applied on trapezoid STUV.
What will be the location of T′ in the image trapezoid S′T′U′V′? (10, −1) (10, 1) (13, 1) (13, −1)