Answer:
it is to small to see sorry
An internet provider states that, on average, the daily amount of time an adult spends on the internet is 4.5 hours. A sociologist studying the behaviors of internet consumers believes the average daily amount an adult spends on the internet is different than the amount stated by the internet provider. After completing a study, the sociologist found that the average daily amount of time an adult spends on the internet is 5.9 hours, on average. As the sociologist sets up a hypothesis test to determine if their belief is correct, what is their claim?
a. The average daily amount of time an adult spends on the internet is different than 4.5 hours.
b. The average daily amount of time an adult spends on the internet is different than 5.9 hours.
c. Adults spend a majority of their time on the internet.
d. The average daily amount of time an adult spends on the internet is 4.5 hours.
Answer:
a. The average daily amount of time an adult spends on the internet is different than 4.5 hours.
Step-by-step explanation:
An internet provider states that, on average, the daily amount of time an adult spends on the internet is 4.5 hours.
At the null hypothesis, it is claimed that the mean is of 4.5 hours, that is:
\(H_0: \mu = 4.5\)
A sociologist studying the behaviors of internet consumers believes the average daily amount an adult spends on the internet is different than the amount stated by the internet provider.
At the alternative hypothesis, the sociologist claim, is that the mean is different of 4.5, that is:
\(H_1: \mu \neq 4.5\)
Thus, the correct answer is given by option a.
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. You have a credit card with a balance of $754.43 at a 13.6% APR. You have $300.00 available each month to save or pay down your debts. a. How many months will it take to pay off the credit card if you only put half of the available money toward the credit card each month and make the payments at the beginning of the month? b. How many months will it take to pay off the credit card if you put all of the available money toward the credit card each month and make the payments at the beginning of the month? Be sure to include in your response: • the answer to the original question • the mathematical steps for solving the problem demonstrating mathematical reasoning
a. It will take 7 months to pay off the credit card.
b. it will take 4 months to pay off the credit card.
Since, APR stands for Annual Percentage Rate. It is the interest rate charged on a loan or credit card, expressed as a yearly percentage rate. The APR takes into account not only the interest rate, but also any fees or charges associated with the loan or credit card.
a. If you put half of the available money each month toward the credit card, then you are paying $150.00 per month towards the credit card balance.
We can use the formula for the present value of an annuity to find how many months it will take to pay off the credit card:
PV = PMT × ((1 - (1 + r)⁻ⁿ) / r)
where:
PV is the present value of the debt
PMT is the payment amount per period
r is the monthly interest rate
n is the number of periods
Substituting the values, we get:
754.43 = 150 × ((1 - (1 + 0.011333)⁻ⁿ) / 0.011333)
Simplifying and solving for n, we get:
n = log(1 + (PV ×r / PMT)) / log(1 + r)
n = log(1 + (754.43×0.011333 / 150)) / log(1 + 0.011333)
n = 6.18
Therefore, it will take 7 months to pay off the credit card if you put half of the available money each month toward the credit card.
b. If you put all of the available money each month toward the credit card, then you are paying $300.00 per month towards the credit card balance.
754.43 = 300 ×((1 - (1 + 0.011333)⁻ⁿ) / 0.011333)
Simplifying and solving for n, we get:
n = log(1 + (PV × r / PMT)) / log(1 + r)
n = log(1 + (754.43× 0.011333 / 300)) / log(1 + 0.011333)
n = 3.43
Therefore, it will take 4 months to pay off the credit card if you put all of the available money each month toward the credit card.
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Write an equation for the function graphed below
The rational function graphed in this problem is defined as follows:
y = -2(x - 1)/(x² - x - 2).
How to define the rational function?The vertical asymptotes of the rational function for this problem are given as follows:
x = -1 and x = 2.
Hence the denominator of the function is given as follows:
(x + 1)(x - 2) = x² - x - 2.
The intercept of the function is given as follows:
x = 1.
Hence the numerator of the function is given as follows:
a(x - 1)
In which a is the leading coefficient.
Hence:
y = a(x - 1)/(x² - x - 2).
When x = 0, y = -1, hence the leading coefficient a is obtained as follows:
-1 = a/2
a = -2.
Thus the function is given as follows:
y = -2(x - 1)/(x² - x - 2).
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plsss explain nd i’ll give brainliest answer
Answer: 118
Step-by-step explanation:
Angle ABC and Angle BCD add up to 180 degrees, because Line AB and line CD are parallel. Because of this, Angle BCD can be moved up the the angle above 3n-47. Because the two angles fall on to a straight line, we can say that (3n-47)+(n+7)=180. Solving, n=55, so angle ABC equals 118 degrees.
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plan an investigation that karen and her mom can conduct to test if copper sulfur pyrite or calcium will result in a new substance if they were mixed with water
Answer:
together or combined
Step-by-step explanation:
The scale on a scale drawing is 1 : 30. What should you do with each measurement on the drawing to get the actual dimensions? Provide an example of a drawing that uses this scale. Include both the original and new dimensions.
Answer:
see below
Step-by-step explanation:
For the first question, you should multiply the scale dimension by 30 to get the actual dimension. This is because the scale is 1:30 where the scale dimension is the 1 and the actual dimension is 30, so therefore, the scale dimension is 1/30th of the actual dimension, so to get the actual dimension, we can multiply the scale dimension by 30. I'm not totally sure how to attach pictures from my phone on my computer (sorry) but an example of a drawing could be two rectangles, the first (this is the scale drawing) having dimensions of 1 by 2 units and the second (this is the actual drawing) having dimensions of 30 by 60 units. I hope this helps!
URGENT PLEASE HELP I AM GIVING AWAY MANY POINTS I HAVE ATTACHED THE QUESTION
Answer:
a) x=0, x=1
b)x=0, x=4/3
Step-by-step explanation:
I didnt use the graph, just used algebra. For part a, you can find the answers using the graph by looking at the value of x when y = whatever value they give.
A)
3x²-3x+2=2
3x²-3x+0
x(3x-3)=0
For the product of two things to equal zero, one of them has to be zero. For example, if ab=0, then either a or b (or both) are zero.
Therefore..
x=0
or 3x-3=0, ∴x=1
b)
3x²-3x-1 = x-1
3x²-4x=0
x(3x-4)=0
∴x=0, x=4/3
Answer:
I checked it over twice the first guy is correct make him brainliest
Step-by-step explanation:
Find the missing one. Round the radius and central angle to the nearest whole number. Round the arc length to two decimal places. (use 3.14 as pi)
Given:
radius = 6ft
area of a sector = 59.66 ft²
π = 3.14
Find: central angle (missing one)
Solution:
To solve for the central angle given radius and area of a sector, we have the formula below:
\(AreaofaSector=\frac{\theta}{360}(\pi r^2)\)Let's plug in the given data above to the formula.
\(59.66ft^2=\frac{\theta}{360}(3.14)(6ft)^2\)Then, solve for θ.
\(\begin{gathered} 59.66ft^2=\frac{113.04ft^2\theta}{360} \\ 59.66ft^2=0.314ft^2\theta \\ \text{Divide both sides by 0.314ft}^2 \\ \frac{59.66ft^2}{0.314ft^2}=\frac{0.314ft^2\theta}{0.314ft^2} \\ 190=\theta \end{gathered}\)Therefore, the measure of the central angle is 190 degrees.
To summarize:
radius = 6ft
central angle = 190 degrees
area of a sector = 59.66 ft²
Can you tell me What is 4x16=?
Hello
This is a multiplication question and we can easily use our calculator for this question.
\(4\times16=64\)From the above, the answer to 4 * 16 is 64
the equation of line u is y=2x+8/9. line v includes the point (7,9) and is parallel to line u. what is the equation of.line v
The linear equation parallel to line u that passes through (7,9) is y = 2x - 5
How to find the equation of line V?
Two lines are parallel if have the same slope, we know that line V is parallel to:
y = 2x + 8/9
Then line V will be of the form:
y = 2x + c
To find the value of c, we use the fact that the line passes through (7, 9), replacing these values we get:
9 = 2*7 + c
9 = 14 + c
9 - 14 = c
-5 = c
The linear equation is y = 2x - 5
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Select the expressions that are equivalent to -5(-2w + 9 )
Answer:10−45
Step-by-step explanation: if you actually saw it then you will get that answer
if g(x)= 1- 3/4x find the value of g(-12)
Answer:
17/16
Step-by-step explanation:
g(-12) = 1+3/48 = 1+1/16
The function of g(x)= 1- 3/4x the value of g(-12) is 1.0625.
Given:
g(x)= 1- 3/4x
g(-12) = 1-3/4x(-12)
g(-12) = 1-3/-48
g(-12) =1.0625
What is function?The function X to Y assigns exactly one element of Y to each element of X . The set X is called the range of the function and the set Y is called the code interval of the function.
A function is an equation that has only one answer for y for each x. A function specifies exactly one output for each input of a given type. It is common to call either f(x) or g(x) instead of the y function. f(2) means that we should find the value of our function when x is 2.
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what is the missing term in the pattern?2, ?,18,54,162.... a.3 b.6 c.8 or d.9
b.6 because 2 * 3 it will give us six then * it with 3 again it will give you 18
1.3.1 1.3.2 1.3.3 1.3.4 Government receives income from various sources, like tax and loans. This income is then distributed to the different sectors. TABLE 3 below shows the source of the income and the expenditure for the 2019/20 tax year. SOURCE Tax INCOME Loans ASC QP Other income Non-tax income AMOUNT (in billion rand) 1370 242.7 180.3 31.5 EXPENDITURE SECTOR Social Development Basic Education Health Peace and safety Economic development Community Development Debt service cost AMOUNT (in billion rand) Further Education and Training Other 278.4 262.4 222.6 211.0 209.2 208.5 202.2 APRIL 2021 112.7 B 1823.72 TOTAL A Write the amount received from loans as a number in millions (1) (3) (3) Calculate the missing value A Calculate the missing value B. Show ALL calculations. Determine the amount allocated for Community Development as a percentage of the total expenditure. (4)
The amount received from loans as a number in millions is 242,700 million rand.
How to calculate the valueDeducing value A requires computation of collective income sources, for which the following summation suffices:
Total Income = Tax + Loans + ASC + QP + Other income + Non-tax income = 1370 + 242.7 + 180.3 + 31.5 + A + 0 = 1825.5 + A
In this context, it follows that A amounts to (1825.5 - 1370 - 242.7 - 180.3 - 31.5) = 0 million rand.
Conversely determining missing value B necessitates subtraction of total expenditure from accumulated revenue, giving rise to the subsequent formula:
Total Income - Total Expenditure = B
(1825.5 - 112.7 - 278.4 - 262.4 - 222.6 - 211.0 - 209.2 - 208.5 - 202.2 - 0) = B
Following calculation, B equates to -77.1 million rand, indicating an overage in expenses during fiscal year 2019/20.
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What is the remainder when a^3 - 4 is divided by a+2?
Answer:
The remainder is-12
Step-by-step explanation:
Find the zeros of the divisor and plug it into the quartic binomial.
a+2=0
a=-2
Now (-2)³-4=-8-4=-12
What is the slope of the line that contains these points? x -4 -3 -2 -1 y 2 5 8 11
Answer:
21 because I serch it up I believe
Can someone find the sample variance and the sample standard deviation for this? Please show how you got it
The sample variance is 5.32 and the sample standard deviation is 2.31
Calculating the sample variance and the sample standard deviationGiven that
x: 0 1 2 3 4 5 6 7 8 9 10
f: 2 3 11 18 12 4 12 2 5 2 2
Where
x = Number of water bottles
f = Votes
Next, we calculate the sample variance using a graphing calculator where we have the following summary:
Minimum: 0Maximum: 10Variance: 5.32Standard deviation σ=2.31Corrected sample standard deviation s=2.32Coefficient of variation cV=0.54Signal-to-noise ratio SNR=1.84This means that the sample variance is 5.32 and the sample standard deviation is 2.31
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which is the standard equation of the hyperbola centered at the origin, with a vertical transverse axis and values of a
The standard equation of a hyperbola centered at the origin and a vertical transverse axis values of a=8 and b=9 is y²/64 - x²/81 = 1.
What is a hyperbola?In mathematics, a hyperbola is a type of smooth curve lying in a plane, defined by its geometric properties or by equations for which it is the solution set. A hyperbola has two pieces, called connected components or branches, that are mirror images of each other and resemble two infinite bows.
The standard equation of a hyperbola centered at the origin and a vertical transverse axis is given by
y²/a² - x²/b² = 1
We are given that;
a = 8
b = 9
Now, putting the values of the variables into the equation;
y²/a² - x²/b² = 1
y²/8² - x²/9² = 1
y²/64 - x²/81 = 1
Therefore, the standard equation will be y²/64 - x²/81 = 1.
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Find the area (image attached) this is literally my 3 time asking
I'll help you!
Answer:
EXACT: 2.7√1.71 + 4.05 units²
APPROX: 3.5307 + 4.05 = 7.58 units²
Step-by-step explanation:
See the attached help image
Total A = 2 triangles + 1 trapezoid
Triangles
Find missing side:
2.7² + b² = 3²
b² = 3² - 2.7²
b = √1.71
Find area of triangles:
A = bh/2
A = b(2.7)/2
A = √1.71(2.7)/2
A = 1.35√1.71 units²
Trapezoid
A = (a + b)(h)/2
A = ((3-√1.71) + √1.71)(2.7)/2
A = (3)(2.7)/2
A = 4.05 units²
Total
2(1.35√1.71) + 1(4.05)
EXACT: 2.7√1.71 + 4.05 units²
APPROX: 3.5307 + 4.05 = 7.58 units²
It says graph ×< 1 btw
how many roots does y=x2-6x+9 have
Answer:
One root ; x = 3
Step-by-step explanation:
( a ± b )² = a² ± 2ab + b²
~~~~~~~~~
y = x² - 6x + 9
x² - 6x + 9 = x² - 2(x)(3) + 3² = ( x - 3 )²
( x - 3 )² = 0 ⇒ x - 3 = 0 ⇒ x = 3
What is the range of the function y=e4x7
A- Y <0
B- Y > O
C- y <4
D- Y> 4
We have been given the function We know that the range is set of y values for which the function is defined. Therefore, we will find the value for x and then observe the restriction is y's values.
Now, we know that logarithm function is not defined for negative values. Hence, the value for y is always greater than zero.
Therefore, the range of the function is given by y>0B is the correct option.
PLEASE ANSWER ASAP !!!!!!!!!!!!!!!!!!! WILL GET BRAINLEST IF CORRECT!!!!!!!!!!!!!!!!!!!!!!
Answer:
x=35
Step-by-step explanation:
40+40+2x+30 = 180
Combine like terms:
2x+110=180
Subtract 110 from both sides
2x=70
x=35
Plz answer, I am tired of bots.
Answer:
B
Step-by-step explanation:
Answer:
(B) 4
Step-by-step explanation:
If you divide your Y's from your X's you always get 4
2. Given the situations below, Identify if it is a linear or exponential model or neither.
Explain your reasoning.
a. A savings account that starts with $5000 and receives a deposit of $825 per month.
Step-by-step explanation:
The situation described can be modeled using a linear equation, where the balance of the savings account increases by a fixed amount every month. Specifically, the equation that represents this situation is:
balance = $5000 + $825 * months
where "months" represents the number of months that have passed since the account was opened. The slope of this line is constant at $825, indicating that the balance is increasing by the same amount every month.
Therefore, the model for this situation is linear.
1 when this type of variable is passed into a method, any changes made to it in the method are saved and the previous value of the variable is overwritten outside the method.
The type of variable being referred to is a reference variable, also known as a reference type.
In Java and other object-oriented programming languages, reference variables are used to store references to objects. Unlike primitive data types such as int or double, reference variables do not store values directly. Instead, they store the memory address of an object.
When a reference variable is passed into a method, the method receives a reference to the same object as the caller. Any changes made to the object within the method are saved, and the previous value of the object is overwritten outside the method. This is because the method operates on the same object as the caller, rather than a copy of the object.
It is important to understand the behavior of reference variables when passing them into methods, as this can have unintended consequences. For example, if the method modifies the object in a way that is not expected, the caller will also see the same change. To avoid this, it is sometimes necessary to create a new object within the method, rather than modifying the original object.
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Pls I don't understand
The greater unit rate is 6. Therefore, option C is the correct answer.
The given equation is y=10/3 x+8.
Here, rate of change is 10/3 and the y-intercept is 8
From the graph we have (1, 6) and (2, 12)
Unit rate = (12-6)/(2-1)
= 6
Here, the greater unit rate is 6.
Therefore, option C is the correct answer.
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A particular fruit's weights are normally distributed, with a mean of 498 grams and a standard deviation of 32 grams.If you pick 13 fruits at random, then 11% of the time, their mean weight will be greater than how many grams?Give your answer to the nearest gram.
We are given the following information
Mean = 498 grams
Standard deviation = 32 grams
Sample size = 13
We are asked to find the weight for which 11% of the fruits are heavier.
11% corresponds to 100% - 11% = 89% percentile of the normal distribution.
Recall that the z-score for a normal distribution is given by
\(z=\frac{x-\mu}{\frac{\sigma}{\sqrt[]{n}}}\)Where x is the value that we need to find out, μ is the mean, σ is the standard deviation, n is the sample size.
z is the value of the z-score corresponding to the 89th percentile.
From the z-table, the value of the z-score corresponding to the p = 0.89 is 1.23
Let us substitute all these values into the above formula and solve for x.
\(\begin{gathered} 1.23=\frac{x-498}{\frac{32}{\sqrt[]{13}}} \\ 1.23\cdot\frac{32}{\sqrt[]{13}}=x-498 \\ 1.23\cdot\frac{32}{\sqrt[]{13}}+498=x \\ 10.92+498=x \\ 509=x \\ x=509\; \text{grams} \end{gathered}\)Therefore, the required value is 509 grams.
please help me im on a timer
Answer:
11/8
Step-by-step explanation:
A family drank 4 gallons of juice over 5 weeks. During this time period,
at what rate did the family drink juice.
Therefore, the family drank juice at a rate of 0.8 gallons per week.
What is percent?Percent is a way of expressing a fraction or a decimal as a fraction of 100. It is denoted by the symbol "%". For example, the fraction 3/4 can be written as 75% and the decimal 0.5 can be written as 50%. Percentages are commonly used in everyday life to express values such as discounts, interest rates, and success rates.
Here,
To find the rate at which the family drank juice, we need to divide the total amount of juice consumed by the time it took to consume it.
The total amount of juice consumed is 4 gallons. The time period is 5 weeks.
So, the rate at which the family drank juice is:
4 gallons ÷ 5 weeks = 0.8 gallons per week
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