Using the z-distribution to test the hypothesis, it is found that:
1. You would not like to continue the game, as in each trial you are losing.
2. The p-value is of 0.0023.
3. The low p-value means that there is enough evidence to conclude that the coin is biased.
What are the hypothesis tested?At the null hypothesis, it is tested if there is not enough evidence that the coin is biased, that is, the proportion of heads is of 0.5, hence:
[tex]H_0: p = 0.5[/tex]
At the alternative hypothesis, it is tested if there is enough evidence that the coin is biased, that is, it has a proportion of heads lower than 0.5, hence:
[tex]H_1: p_1 < 0.5[/tex]
What is the test statistic?The test statistic is given by the equation as follows:
[tex]z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}[/tex]
In which the variables are listed and explained as follows:
[tex]\overline{p}[/tex] is the sample proportion.p is the proportion tested at the null hypothesis.n is the sample size.The values of these parameters are given as follows:
[tex]\overline{p} = \frac{0}{8} = 0, n = 8, p = 0.5[/tex]
Hence the test statistic is:
[tex]z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}[/tex]
[tex]z = \frac{0 - 0.5}{\sqrt{\frac{0.5(0.5)}{8}}}[/tex]
z = -2.83.
P-value and conclusionUsing a z-distribution calculator, and considering a left-tailed test, as we are testing if the proportion is less than a value, with z = -2.83, the p-value is of 0.0023.
Since this p-value is less than the standard significance level of 0.05, it means that there is enough evidence to conclude that the coin is biased towards tails.
More can be learned about the z-distribution at https://brainly.com/question/13873630
#SPJ1
Translate each phrase into a variable expression. Use n for the variable.
Nine increased by twice a number
The expression of the phrase " Nine increased by twice a number " is 2n + 9
The given phrase is
Nine increased by twice a number
We have to convert the the phrase to the expression
The expression is the mathematical statement that consist of different variables, numbers and mathematical operators. The mathematical operators are addition, subtraction, division and multiplication. The equal sign and inequality will not be the part of expression.
Consider the number as n
Twice the number = 2n
nine increased by twice a number = 2n + 9
Hence, the expression of the phrase " Nine increased by twice a number " is 2n + 9
Learn more about expression here
brainly.com/question/27683555
#SPJ9
Please help with answers
The value of x is 11° and measure of other two angles are 80° and 117°
What is triangle?A triangle can be defined as a polygon which has three angles and three sides. The interior angles of a triangle sum up to 180°, and the exterior angles sum up to 360°.
Given that, the interior angles of the triangle are 37° and (3x+47)° and an exterior angle measures (5x+ 62)°
We know that the sum of two interior angles equals to the measure of an exterior angle,
Therefore, 37° + (3x+47)° = (5x+ 62)°
x = 11°
Hence, The value of x is 11° and measure of other two angles are 80° and 117°
For more references on triangle, click;
https://brainly.com/question/2773823
#SPJ1
Find which are the errors and solve correctly the problem:
Answer:
[tex]f^{-1}(y) = \sqrt{x-5}[/tex]
Step-by-step explanation:
You have to switch the f(x) to x and the x's to y's
[tex]x = y^2 + 5[/tex]
[tex]\sqrt{x-5} = \sqrt{y^2}[/tex]
[tex]y = \sqrt{x - 5}[/tex]
Solve. 4h+8=9h-7 step by step
Answer:
h=3
Step-by-step explanation:
4h+8=9h-7
subtract 4h
8=5h-7
add 7
15=5h
divide 3
h=3
Note one gallon of water equals 231 cubic inches. If Anna is going to clean the fish tank which measures 48 inches long by 11 inches wide by 35 inches high, how many gallons of water will it take to fill the fish tank?
If any one sees this question please help me answer it because I am having a lot of trouble.
It will take 80 gallons of water to fill the fish tank.
What is volume?The amount of space occupied by a three-dimensional object or region of space.
Given that, Anna is going to clean the fish tank, which measures 48 inches long by 11 inches wide by 35 inches high
The fish tank is cuboidal,
Volume of cuboid = length*width*height
Therefore, volume of fish tank = 48*11*35 = 18,480 in³
1 gallon = 231 in³
So, 18,480 in³ = 18,480/231 gallons = 80 gallons
Hence, Volume of tank = 80 gallons
For more references on Volume, click;
https://brainly.com/question/1578538
#SPJ1
can anyone help with this
Answer:
bla blablablablabla
Step-by-step explanation:
blablablablablabla
6 x (2/3 divided by 2) + 0.5
The given expression has a value of 2.5.
The BODMAS rule is named after the letters in the acronym: B - Brackets, O - Order of powers or roots, D - Division, M - Multiplication. A stands for addition, and S stands for subtraction. According to the BODMAS rule, mathematical statements having several operations must be solved from left to right in the BODMAS order.
Given expression 6 x (2/3 divided by 2) + 0.5
To solve this expression, we must employ the BODMAS rule.
First 2/3 divided by 2
(2/3)/2
= 1/3
Now multiply 1/3 with 6
= 1/3 x 6
= 2
Now add both 2 and 0.5
= 2 + 0.5
= 2.5
Therefore the value of the given expression is 2.5
To learn more about the BODMAS rule visit
https://brainly.com/question/16738857
#SPJ1
Willy is an avid fisherman of the world. As he travels, he goes fishing 2 times on every mainland Country he visits and goes fishing 5 times on every Island he visits.
As far as he remembers, Willy went fishing 65 times in the total of the 25 unique Countries and Islands he visited.
How many Countries and Islands did Willy visit? (Where and represent the countries and islands)
The number of mainland countries is 20 and the number of island countries is 5 countries that Willy visited.
How to calculate the value?Let the number of mainland be represented by m
Let the number of island be represented by x.
This will be illustrated as:.
m + x = 25 .... i
2m + 5x = 65 .... ii
From equation i, m = 25 - x.
Put this into equation ii
2m + 5x = 65
2(25 - x) + 5x = 65
50 - 2x + 5x = 65
3x = 65 - 50
3x = 15
Divide
x = 15 / 3
x = 5
Island countries = 5
Since m + x = 25
m = 25 - 5 = 20
Mainland countries = 20
Learn more about equations on:
brainly.com/question/2972832
#SPJ1
marie bought 1/2 gallon of milk which she finished after 6 days if she drank the same amounteach day how many gallons a day did she drink
She drinks 1/12 gallons of milk each day
How to determine how many gallons a day did she drink?From the question, we have the following parameters that can be used in our computation:
Size of milk = 1/2 gallons
Number of days = 6 days
These parameters can be represented as
(x, y) = (6, 1/2)
The number of gallons a day she drinks can then be represented as the slope/unit rate and the unit rate is then calculated as
unit rate = (y₂ - y₁)/(x₂ - x₁)
Where
(x, y) = (0, 0) and (6, 1/2)
Substitute the known values in the above equation
So, we have the following equation
Slope = (1/2 - 0)/(6 - 0)
Evaluate the quotient
Slope = 1/12
Hence, the number of gallons she drinks a day is 1/12
Read more about unit rate at
https://brainly.com/question/19493296
#SPJ1
Find the area of the following figure:
(Use π=3.14 when finding your final answer. Do not round and Do not enter units!)
Area = _______ mm²
Answer:
521 mm2
Step-by-step explanation:
Formulas:
area of circle= 3.14 x radius x radius
area of semicircle = 0.5 x 3.14 x radius x radius
diameter of circle= 20mm
radius=0.5x20mm=10mm
area of trapezium= 0.5 x (base+base) x height
Working:
area of semicircle= 0.5 x 3.14 x 10mm x 10mm = 157mm2
area of trapezium = 0.5 x (20mm+32mm) x 14mm = 364mm2
total area of figure= 157mm2 + 364mm2 =521mm2
Fill in the missing term on each line. Simplify any fractions.
3(9w+ 2) = 19w + 6
_+ 6 = 19w + 6 Apply the distributive property
_+6=6
8w =_
W =_
Subtract 19w from both sides
Subtract 6 from both sides
Divide both sides by 8
Answer:
27w+2=19w+6
27w+19w=6+2
w(27+19)=8
w(27+19)/27+19=8/27+19
w=8/(27+19)
Donna used a total of 2 1/6 gallons of gas while driving her car. Each hour she was driving, she used 7/10 gallons of gas. What was the total number of hours she was driving?
The total number of hours Donna used driving is 3 2/21 hours
What is rate?A rate is a special ratio in which the two terms are in different units. For example, For 1 hour Donna is using 7/10 gallons of fuel while driving.
The two quantities there are time in hours and the quantity of fuel used in gallons.
If Donna used 7/10 gallon for 1 hour
then 1 gallon will last for 1÷7/10= 1× 10/7= 10/7
Therefore for 2 1/6 gallon = 10/7×2 1/6= 10/7×13/6
= 3 2/21 hours
Therefore the total number of hours used driving with 2 1/6 gallons is 3 2/21
learn more about rate from
https://brainly.com/question/25793394
#SPJ1
An earthworm accelerates from a speed of 0.01 m/s to 0.02 m/s over a distance of 0.9 m. How long did it take?
By using the formula of acceleration, it can be calculated that
Time taken by an earthworm to accelerate from a speed of 0.01 m/s to 0.02 m/s over a distance of 0.9 m is 59.88 s
What is acceleration?
At first, it is important to know about velocity
Distance travelled by a body per unit interval of time in a particular direction is called Velocity
The rate of change of velocity is called acceleration.
Acceleration is a vector quantity as the direction is taken into account.
Initial velocity of earthworm (u)= 0.01 m/s
Final velocity of earthworm (v) = 0.02 m/s
Distance (s) = 0.9 m
We know,
[tex]v^2 = u^2 + 2as\\0.02^2 = 0.01^2 + 2 \times a \times 0.9\\0.02^2 - 0.01^2 = 1.8a\\(0.02 + 0.01)(0.02 - 0.01) = 1.8a\\a = \frac{0.03 \times 0.01}{1.8}\\a = 0.000167 \ ms^{-2}[/tex]
Again,
v = u + at
0.02 = 0.01 + 0.000167[tex]\times[/tex] t
t = [tex]\frac{0.02 - 0.01}{0.000167}[/tex]
t = 59.88 s
Time taken by an earthworm to accelerate from a speed of 0.01 m/s to 0.02 m/s over a distance of 0.9 m is 59.88 s
To learn more about acceleration, refer to the link-
https://brainly.com/question/460763
#SPJ1
3) On a large ship, there are 230 mice and rats (combined) each of which either prefers peanut
butter or cheese. Of the 110 mice, 42 prefer peanut butter and 44 rats prefer cheese. What
percent of all rodents on the ship preferred peanut butter? (2 pts) (Mice and rats are both
rodents.)
48.4 % percent of all rodents on the ship preferred peanut butter.
What is unitary method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units. What can be values and units.Let's say you go to the store to buy six apples. You are informed by the shopkeeper that he is offering 10 apples for Rs 100. In this instance, the value and the units are the price of the apples.Recognizing the units and values is crucial when using the unitary technique to a problem.Always write the items that need to be computed on the right side and the things that are known on the left side to simplify things. We are aware of the quantity of apples and the amount of money in the aforesaid problem.acc to our question-
total number of rodents = 230110 mice in which 42 prefer peanut better,110 * 44= 48.4hence,48.4 % percent of all rodents on the ship preferred peanut butter.
learn more about unitary method click here:
brainly.com/question/24587372
#SPJ13
Plot the following numbers on the number line: -3 1/2 1 3/4
A number line which shows -3, 1/2, 3/4, and 1 correctly plotted on a graph is shown in the image attached below.
What is a number line?In Mathematics, a number line can be defined as a type of graph with a graduated straight line which comprises both positive and negative numbers that are placed at equal intervals along its length.
This ultimately implies that, a number line primarily increases in numerical value towards the right from zero (0) and decreases in numerical value towards the left from zero (0). Therefore, the numerical value -3 would be plotted on the left hand side of zero (0) while the numerical values 1/2, 3/4, and 1 would be plotted on the right hand side of zero (0) using a number line.
In conclusion, a number line has been used for the comparison of the given numerical values, and they are plotted on the number line shown in the image attached below.
Read more on number line here: brainly.com/question/17325155
#SPJ1
quotient of 2÷ 3/7 iready
Answer:
6/7
Step-by-step explanation:
2÷3/7=2*3/7
6/7
Visit each of the three credit reporting agencies and find an example of a credit report. For each, describe a different portion of the credit report
and how it is evaluated for credit worthiness.
Answer:
Doesn't make a lot of sense. Can you be more specific.
Step-by-step explanation:
The Creditworthiness is how a lender determines that you will default on your debt obligations, or how worthy you are to receive new credit
What are credit reporting agencies?Credit reporting companies, also known as credit bureaus or consumer reporting agencies, are companies that compile and sell credit reports.
Given are three credit reporting agencies.
Creditworthiness is how a lender determines that you will default on your debt obligations, or how worthy you are to receive new credit. Your creditworthiness is what creditors look at before they approve any new credit to you. The 3 C's of credit worthiness are Character, Capacity and Capital. Creditworthiness is determined by several factors including your repayment history and credit score.
Therefore, the Creditworthiness is how a lender determines that you will default on your debt obligations, or how worthy you are to receive new credit.
To solve more questions on credit worthiness, visit the link below -
https://brainly.com/question/18005096
#SPJ2
Simplify the expressions
a) (30+10 ÷ 2)-5-10
b) (30 + 10) = 2.5-10
c) 30 + 10 = 2(5-10)
(d) 30+ (10 ÷ 2·5)-10
The solution of the expressions are
(a) (30+10 ÷ 2)-5-10 = 20
(d) 30+ (10 ÷ 2·5)-10 = 24
What is meaning of expressions?
An expression is a combination of operations, variables, and numbers.
What is BODMAS rule?
According to the BODMAS rule, if an expression contains brackets ((), {}, []) we have first to solve or simplify the bracket followed by 'order' (that means powers and roots, etc.), then division, multiplication, addition and subtraction from left to right.
Given expression is
(30+10 ÷ 2)-5-10
Applying BODMAS rule:
= (30 + 5) - 5 - 10
= 35 - 5 - 10
= 30 - 10
=40
Second expression is:
30+ (10 ÷ 2·5)-10
= 30 + (10 ÷ 10) - 10
= 30 + 1 - 10
= 31 -10
= 21
To learn more about expressions, click on below link:
https://brainly.com/question/13947055
#SPJ1
Which addition equation matches the number line help help
Jan works from 30 to 40 hours per week during the summer. She earns $12.00 per hour. Her friend Rachel also has a job. Rachel's pay for t hours is given by the function r(t) = 11t, where 20 ≤ t ≤ 30. Find the domain and range of each function. Compare their hourly wages and the amount they earn per week.
j(t) domain:
≤ t ≤
j(t) range:
≤ j(t) ≤
r(t) domain:
≤ t ≤
r(t) range:
≤ r(t) ≤
select: Jan or Rachel
earns more per hour than
select: Jan or Rachel
. Jan earns from $ (blank)
to (blank) $
per week and Rachel earns from (Blank) $
to (Blank) $
per week.
Jan earns more than Rachel. The range of what Jan earns is 360 dollars to 480 dollars per week. The range of what Rachel earns is 220 dollars to 330 dollars per week.
How to solve for the Range and the domain of the functionsJan's pay function is given as /(t) = 12 dollars this is the same as 12 dollars in one hour
the time that she has to work is given a 30 hours to 40 hours.
Hence the domain would be written as
domain : 30 ≤ t ≤ 40
we have to make use of the values of t
f(t) = 12 * 30 = 360
f(t) = 12 * 40 = 480
The range of Jan is going to be
range : 360 ≤ t ≤ 480
b. For Rachel, t is going to vary between 20 ≤ t ≤ 30
domain : 20 ≤ t ≤ 30
r*t = 11t
= 11 x 20 = 220
= 11 x 30 = 330
The range is given as
range: 220 ≤ t ≤ 330
Jan earns more per hour than Rachel
The amount earned is, Jan earns from 360 dollars to 480 dollars per week.
Rachel earns from 220 dollars to 330 dollars per week.
Read more on the range and domain of functions here: https://brainly.com/question/1942755
#SPJ1
please help write the reasons that are needed to complete the proof in the picture
Answer:
a. Given
b. thru any 2 points there exists a line (you can draw a line)
c. Definition of Regular Polygon
d. Definition of Regular Polygon
e. Given
f. Def of Midpoint
g. SAS: Side-Angle-Side congruence
h. CPCTC - Corresponding Parts of Congruent Triangles are Congruent
i. Definition of Regular Polygon
j. Reflexive
k. SSS: Side-Side-Side congruence
l. CPCTC
Step-by-step explanation:
I encourage you to look up all of the above reasons to get a better understanding of what they are!!
If each standard room cdn fill 2 guests what is the maximum number of guests that all standard rooms can accommodate
The maximum number of guests that can fill all the standard rooms is twice the number of the standard rooms
How to find the number of guests that can fill the standard roomsInformation from the question
each standard room can fill 2 guests
the maximum number of guests that all standard rooms can accommodate = ?
The problem is solved by multiplication
each standard room (1) = 2 guests
all standard rooms = ?
cross multiplying
? * 1 = 2 * all standard rooms
? = all standard rooms times two
Learn more about multiplication here:
https://brainly.com/question/29420909
#SPJ1
Can anyone help me with this, I need an accurate answer also if possible. -thanks
Answer:
y=x-7
Step-by-step explanation:
we know the y intercept is -7 since when x was 0 g(x) is -7
We write it in slope intercept form which is y=mx+b
m- slope
b- y- intercept
To find slope we do y2-y1/x2-x1
-5+7/2-0
2/2
1
1 is the slope so we just keep it X on the equation and the equation will be
y=x-7
Hopes this helps please mark brainliest
Find the area of the shaded region. Round your answer to two decimal places.
The area of the shaded region is x=245 feet for both rectangle and circle.
What is meant by area?The quantity area expresses the extent of a region on a plane or a curved surface. The area of a plane region or plane area refers to the area of a form or planar lamina, whereas surface area refers to the area of an open surface or the boundary of a three-dimensional object. Area can be defined as the amount of material of a given thickness required to make a model of the shape, or the amount of paint required to cover the surface with a single coat. It is the two-dimensional equivalent of the length of a curve or the volume of a solid.
The area of a shape can be calculated.
Area of shaded region=Area of rectangle-1/2(Area of circle)
=L×B-1/2(πr²)
=23×14-1/2((22/7)×7×7)
=322-77
=245 feet
Therefore, the area of the shaded region=245 feet
To know more about area, visit:
https://brainly.com/question/13194650
#SPJ1
Let's multiply the top equation by -2. What would be our new equation?
2x + 3y = 12
4x - 7y = -54
New equation will be 4x + 6y = 24, if we multiply the equation 2x + 3y = 12 by -2.
Define multiplication.We can rapidly determine the total number of things by multiplying. When multiplying, we'll consider the number of groups with similar sizes and the number of items in each group. A fact involving multiplication is the result of two distinct integers. Additionally, the product is unaffected by the arrangement of the numbers. For instance, 32=6 and 23=6. The distributive, commutative, associative, removes a common factor, and neutral element characteristics of multiplication.
Given,
Equations:
2x + 3y = 12
4x - 7y = -54
Multiplying the top equation by -2:
-2(2x + 3y) = -2(12)
-2(2x) -2(3y) = -24
Product:
-4x - 6y = -24
Taking - common,
-(4x + 6y) = -24
4x + 6y = 24
New equation will be 4x + 6y = 24, if we multiply the equation 2x + 3y = 12 by -2.
To learn more about multiplication, visit:
https://brainly.com/question/5992872
#SPJ1
Convert the expression (10) 1/3 to radical form.
Answer:
cubic root 10 power 1
Step-by-step explanation:
Apply the rule
x
m
n
=
n
√
x
m
to rewrite the exponentiation as a radical.
3
√
10
1
Anything raised to
1
is the base itself.
3
√
10
The result can be shown in multiple forms.
Exact Form:
3
√
10
Decimal Form:
2.15443469
…
Find the first term and the common difference of the arithmetic sequence described. Give a recursive formula for the sequence. Find a formula for the nth term. 5 th term is 0; 45 th term is -120
The first term of the sequence is 12 and the common difference is -3.
What is arithmetic progression?The sequence in which every next number is the addition of the constant quantity in the series is termed the arithmetic progression.
Given that a formula for the nth term. 5th term is 0; 45th term is -120. The common difference is calculated as,
a₁ + d(5-1) = 0
a₁ + d(45 - 1) = -120
Solve the above equation,
a₁ + 4d = 0
-a₁ - 44d= +120
___________
-40d = 120
d = -3
The value of the first term is,
a₁ + 4d = 0
a₁ + 4 x -3 = 0
a₁ = 12
Therefore, the first term of the sequence is 12 and the common difference is -3.
To know more about arithmetic progression follow
https://brainly.com/question/6561461
#SPJ1
How is Addy 4+ -4 similar to adding 4+4 how is it different use the words and models to explain
4- (+) (-4) is similar to 4+4 by the rule of addition in integers that is if Negative + Negative then Add the number and put the sign of greater number.
What is integer?Zero, a positive natural number, or a negative integer denoted by a minus sign are all examples of integers. The inverse additives of the corresponding positive numbers are the negative numbers. An integer, pronounced "IN-tuh-jer," is a whole number that can be positive, negative, or zero and is not a fraction. Integer examples include: -5, 1, 5, 8, 97, and 3,043. 1.43, 1 3/4, 3.14, and other numbers that are not integers are some examples. Three categories of integers exist: Zero (0) (0) Good integers (Natural numbers) Integer Negatives (Additive inverse of Natural Numbers).
The rules of addition in integers says,
- + - = +
by this,
4-(-4)=8
by concept of addition,
4+4=8
To know more about integer,
https://brainly.com/question/15276410?referrer=searchResults
#SPJ13
if a volume of an object varies directly with its width and if the volume is 16, while the with is 4 what is k?
The value of k is 4.
What is Proportion ?In general, the term "proportion" refers to a part, share, or amount that is compared to a total.
According to the concept of proportion, two ratios are in proportion when they are equal. Two ratios or fractions are equal when an equation or a declaration to that effect is utilised.
A mathematical comparison of two numbers is called a proportion. According to proportion, two sets of provided numbers are said to be directly proportional to one another if they increase or decrease in the same ratio. "::" or "=" are symbols used to indicate proportions.
Given:
Volume= 16
Width = 4
So, we can write the relation as
Volume= k (width)
k = Volume/ width
k= 16/4
k = 4
Hence, the value of k is 4.
Learn more about Proportion here:
https://brainly.com/question/26974513
#SPJ1
Simplify the fraction
Answer:
Step-by-step explanation: