Will give brainliest if correct

A student has grades​ 84, 91,​ 78, and 74. He will have one more test. If they are all weighted​ equally, what must he earn in order to average at least an 83 for the​ course, so he can earn a​ B?

Enter his minimum test grade. ___

Conduct a one-sample t-test to determine if the mean temperature of the cakes is statistically significantly above 200 F.

To test whether the mean temperature of the cakes is above 200 F, a one-sample t-test is suitable. In this case, the manufacturer has collected 100 data points, which allows for an adequate sample size. The one-sample t-test compares the sample mean to a hypothetical mean (in this case, 200 F) and determines if there is enough evidence to suggest that the true population mean is significantly different.

By performing this test, the manufacturer can assess whether the baking process consistently produces cakes with a mean temperature above the desired threshold. The results of the t-test will provide statistical evidence to support decision-making regarding the baking temperature.

Learn more about T-test

brainly.com/question/30114401

#SPJ11

Answer:

It's either 16 or -16

Step-by-step explanation:

Subtract 41 and 57 and you get one of those two.

My bet is 16 due to you not being able to have a negative amount of bills in your wallet in real life.

Answer:

c-39 is the answer

Step-by-step explanation:

multiply the numbers that are in bracket

-4(8-c)-(3c+7)

the answer will be this

-32+4c-3c-7

ARRANGE IN LIKE TERM

-32-7+4c-3c

c-39 is the answer

Hope it is helpful for you

follow me and mark me as a brainest

D) ac + ad + bc + bd

Hope it helps :)

Answer:

D) ac + ad + bc + bd

Step-by-step explanation:

Answer:

3x + 4

or

3x + (4)

Step-by-step explanation:

You can shape that problem into many more but these are just 2 examples.

hope this helped DON'T forget to mark this as the brainliest answer and give it a 5 star and a heart for support and for people asking this same question in the future. have a nice day!!

Answer: Alternate exterior angles

Step-by-step explanation:

The amount he earned last week in commission is $994.

The commission he earned in 2011 is $51,688

The commission earned is a fraction of the total sales of stocks.

Commission earned = amount of sales x percentage commission

14% x $7,100

= 14/100 x $7,100

= 0.14 x $7,100

= $994

Amount she earned in commission in a year = number of weeks in a year x commission earned per week

= $994 x 52 = $51,688

To learn more about wages, please check: https://brainly.com/question/11946555

#SPJ1

Answer:

C. \(m=20\), \(n=10\)

Step-by-step explanation:

Since the triangle is a special 30°-60°-90° triangle, the hypotenuse is twice the size of the shortest leg. The long leg is \(\sqrt{3}\) of the short leg.

The Graduate Record Examination (GRE) is a test required for admission to many U.S. graduate schools. Students’ scores on the quantitative portion of the GRE follow a normal distribution with mean 150 and standard deviation 8.8.A graduate school requires that students score above 160 to be admitted.

Proportion of combined GRE scores can be expected to be over 160:We are given that the mean is 150 and the standard deviation is 8.8. We have to calculate the proportion of combined GRE scores that can be expected to be over 160.The standardized score is calculated as:z = (x - μ) / σwhere x = 160, μ = 150, and σ = 8.8Then we have:z = (160 - 150) / 8.8z = 1.136The area under the standard normal distribution curve to the right of 1.136 is 0.127. This means that 12.7% of combined GRE scores can be expected to be over 160.Proportion of combined GRE scores can be expected to be under 160:To calculate the proportion of combined GRE scores that can be expected to be under 160, we can subtract the proportion that is over 160 from the total proportion, which is 1.

So, the proportion of combined GRE scores that can be expected to be under 160 is:1 - 0.127 = 0.873This means that 87.3% of combined GRE scores can be expected to be under 160.Proportion of combined GRE scores can be expected to be between 155 and 160:We can use the same formula to calculate the proportion of combined GRE scores that can be expected to be between 155 and 160. First, we need to calculate the standardized scores for 155 and 160.z1 = (155 - 150) / 8.8z1 = 0.568z2 = (160 - 150) / 8.8z2 = 1.136Then, we need to find the area under the standard normal distribution curve between these two standardized scores.Using a standard normal distribution table or calculator, we find that the area between z = 0.568 and z = 1.136 is 0.155.

Therefore, the proportion of combined GRE scores that can be expected to be between 155 and 160 is 0.155. This means that 15.5% of combined GRE scores can be expected to be between 155 and 160.What is the probability that a randomly selected student will score over 145 points?We are given that the mean is 150 and the standard deviation is 8.8. We have to calculate the probability that a randomly selected student will score over 145 points.The standardized score is calculated as:z = (x - μ) / σwhere x = 145, μ = 150, and σ = 8.8Then we have:z = (145 - 150) / 8.8z = -0.568The area under the standard normal distribution curve to the right of -0.568 is 0.715. This means that the probability that a randomly selected student will score over 145 points is 0.715.

In summary, we can expect that 12.7% of combined GRE scores will be over 160, and 87.3% of combined GRE scores will be under 160. The proportion of combined GRE scores that can be expected to be between 155 and 160 is 15.5%. A randomly selected student has a probability of 0.715 of scoring over 145 points and a probability of 0.5 of scoring less than 150 points. Finally, a student who earns a quantitative GRE score of 142 has a percentile rank of 18.2%. These calculations are based on the normal distribution of GRE scores with a mean of 150 and a standard deviation of 8.8.

To know more about Graduate Record Examination visit:

brainly.com/question/16038527

#SPJ11

f(n) = ϴ(g(n)) is not true in cases B(sqrt(n)log(n), C(\(3^n 5^n\)), and D(sin(n)+3 cos(n)+1).

A) \(log(n^200) log(n^2)\)

Here, f(n) = \(log(n^200)\) and g(n) = \(log(n^2)\). Now, if we take the limit of f(n) / g(n) as n approaches infinity, then:

f(n) / g(n) = \([log(n^200) / log(n^2)]\) = 100

This means that as n approaches infinity, the ratio f(n) / g(n) is constant, and so we can say that f(n) = ϴ(g(n)). Therefore, f(n) = ϴ(g(n)) is true in this case.

B) sqrt(n) log(n) Here, f(n) = sqrt(n) and g(n) = log(n). Now, if we take the limit of f(n) / g(n) as n approaches infinity, then:

f(n) / g(n) = [sqrt(n) / log(n)]

As log(n) grows much slower than sqrt(n) as n approaches infinity, this limit approaches infinity. Therefore, we cannot say that f(n) = ϴ(g(n)) is true in this case.

C) 3^n 5^n

Here, f(n) = \(3^n\) and g(n) = \(5^n\) . Now, if we take the limit of f(n) / g(n) as n approaches infinity, then:

f(n) / g(n) = \([3^n / 5^n]\)

As \(3^n\) grows much slower than \(5^n\) as n approaches infinity, this limit approaches zero. Therefore, we cannot say that f(n) = ϴ(g(n)) is true in this case.

D) sin(n) + 3 cos(n) + 1

Here, f(n) = sin(n) + 3 and g(n) = cos(n) + 1. Now, if we take the limit of f(n) / g(n) as n approaches infinity, then:

f(n) / g(n) = [sin(n) + 3] / [cos(n) + 1]

As this limit oscillates between positive and negative infinity as n approaches infinity, we cannot say that f(n) = ϴ(g(n)) is true in this case.

Therefore, f(n) = ϴ(g(n)) is not true in cases B, C, and D.

To know more about log refer here:

https://brainly.com/question/32621120

#SPJ11

Answer: The probability is 3 out of 20

Step-by-step explanation:

Answer: The answer C the one in the botton the one that has the arrow Up

Step-by-step explanation:

The first number 20% greater than the third number.

The second number is 50% MORE than the third number.

Let the third number be 100.

According to the question,

First number =120

Second number =150

Percentage of the first of the second number

120/150 x 100 = 80%

The correct answer is 80%

The mark up percentage gained by the shopkeeper is 400%.

For the given question.

The cost of the item is $103.

The customer pays is $515.

The mark up percentage is -

mark up percentage = 515 - 103 / 103

mark up percentage = 4 × 100%

mark up percentage = 400 %.

Thus, the mark up percentage gained by the shopkeeper is 400%.

To know more about the markup percentage rate, here

https://brainly.com/question/14325055

#SPJ10

The explicit formula for the sequence is aₙ=(-4).(-4)ⁿ⁻¹ and the 8th term is 65536

The given sequence is -4, 16, -64, 256,...

If we observe the sequence it is a geometric sequence

aₙ=a.rⁿ⁻¹

a is the first term and r is the common ratio

From the sequence the first term is -4 and common ratio is -4

aₙ=(-4).(-4)ⁿ⁻¹

Plug in the value n as 8

a₈=(-4).(-4)⁷

The value of minus four power seven is minus sixteen thousand three hundred eighty four

a₈=(-4)(-16384)

When four is multiplied with sixteen thousand three hundred eighty four we get sixty five thousand five hundred thirty six

a₈= 65536

Hence, the explicit formula for the sequence is aₙ=(-4).(-4)ⁿ⁻¹ and the 8th term is 65536

To learn more on Sequence click:

https://brainly.com/question/21961097

#SPJ1

Answer:

\( \boxed{if \: b= - 2 : {b}^{2} = { (- 2)}^{2} = 4}\)

Order (B) 5 × 6 of the matrix can be multiplied by matrix a to create matrix ab.

To find the order of matrix:

To prove:

Therefore, order (B) 5 × 6 of the matrix can be multiplied by matrix a to create matrix ab.

Know more about matrix here:

https://brainly.com/question/24079385

#SPJ4

Using function concepts, it is found that the domain of the function that model this phenomenon is [0, 12].

The domain of a function is the set that contains all possible input values.

In this problem, the function is the height of the bamboo according to the month of the year, hence, the input is the month of the year, which has values between 0 and 12, and thus, the domain of the function that model this phenomenon is [0, 12].

A similar problem is given at https://brainly.com/question/10891721

Answer:

\(3x-1\)

Step-by-step explanation:

\(3+2(x-2)+x=3+2x-2.2+x=(2x+x)+(3-4)\\=3x-1\)

Answer:

3x-1

Step-by-step explanation:

trust me i know

Ruby's total earning for the month will be $4,020.

It is given that -

Ruby's monthly salary =$1,800

Ruby's  commission on sales= 6%

Ruby's last month sales= $37000

Ruby's monthly salary =$1,800

Ruby's  commission on sales= 6%

Ruby's last month sales= $37000

Amount Ruby earned as a commission = \(\dfrac{37000\times6}{100}\) =  $2220

Ruby's total earning will be = Salary + commission

                                               = 1800+2220

                                                = $4020

Hence Ruby's total earning for the month will be $4,020.

To know more about percentage follow .

https://brainly.com/question/19247356

A condition that is impossible to satisfy has no solution.

Mathematics can be a powerful tool for solving many problems, but there are some issues that can't be solved.

In particular, any condition that is impossible to satisfy, such as the logical statement ‘this statement is false’, has no solution in mathematics. This is because the statement can’t be proven true or false, and so it can’t be solved.

An unsolvable condition is one that cannot be solved using any combination of logical and mathematical steps.

This means that no matter how much time and effort is put in, a solution to the problem cannot be discovered.

To learn more about solution, click here:

https://brainly.com/question/25785824

#SPJ4

Answer:

Step-by-step explanation:

Let's assume the initial number of men at the exhibition is 10x, and the initial number of women is 3x.

After 110 men left, the number of men remaining is 10x - 110.

The total number of people remaining is (10x - 110) + (3x) = 13x - 110.

According to the given information, the number of men remaining (10x - 110) is 5/12 of the total number of people remaining (13x - 110). We can write this as an equation:

10x - 110 = (5/12)(13x - 110)

To solve this equation, we can start by simplifying both sides:

10x - 110 = (65/12)x - (55/6)

To get rid of the fractions, we can multiply both sides of the equation by 12:

12(10x - 110) = 65x - 110(2)

120x - 1320 = 65x - 220

Next, we can bring the x terms to one side and the constant terms to the other side:

120x - 65x = 1320 - 220

55x = 1100

Dividing both sides by 55, we find:

x = 20

Now, we can substitute the value of x back into the initial expressions to find the number of men and women:

Number of men = 10x = 10(20) = 200

Number of women = 3x = 3(20) = 60

Therefore, there were 60 women at the exhibition

Hope this answer your question

Please rate the answer and

mark me ask Brainliest it helps a lot

Answer:

conjugate

Step-by-step explanation:

just took the test

Answers:

x = -8/5 or x = 8/5

Sum of the first ten terms where all terms are positive = 4092

========================================================

Explanation:

r = common ratio

The first three terms are: 4, 4r, 4r^2

We're given that the sequence is: 4, 5x, 16

Therefore, we have these two equations

Solve the second equation for r and you should find that r = -2 or r = 2 are the only possible solutions. If r = -2, then 5x = 4r solves to x = -8/5. If r = 2, then 5x = 4r solves to x = 8/5.

-----------------

To find the sum of the first n terms, we use this geometric series formula

Sn = a*(1 - r^n)/(1 - r)

We have

So,

Sn = a*(1 - r^n)/(1 - r)

S10 = 4*(1 - 2^10)/(1 - 2)

S10 = 4*(1 - 1024)/(-1)

S10 = 4*(-1023)/(-1)

S10 = 4092

If machine a can make 350 widgets in 1 hour and machine b can make 250 widgets in 1 hour then by forming equation we will get that both machines have to work for one hour and 40 minutes to make 1000 widgets.

Given that machine a can make 350 widgets in 1 hour, and machine b can make 250 widgets in 1 hour.

How much time will both machines take to make 1000 widgets?

Suppose the time taken by both machines be x hours. Time is equal because both the machines need to work together.

According to the question the equation will be as under:

350x+250x=1000

600x=1000

x=1000/600

x=10/6

x=5/3

x=1.67

Converting 0.67 to minutes 0.67*60=40.2

Adding will result 1 hour and 40 minutes.

Hence if machine a can make 350 widgets in 1 hour and machine b can make 250 widgets in 1 hour then by forming equation we will get that both machines have to work for one hour and 40 minutes to make 1000 widgets.

Learn more about equation at https://brainly.com/question/2972832

#SPJ4

Answer: 0.10175

Step-by-step explanation:

First, bring the decimal points to the right for both numbers, to be a total of 5 decimal points to the right. Then, with the numbers 25 and 407, multiply them, and we get 10175. Then, we must bring the 5 decimal points back, and we end up with 0.10175.

Answer: 0.10

Step-by-step explanation:

on time4llearning

To solve for C let us do these steps

1. Put the term of C on one side and the other terms on the other side

Subtract 32 from both sides to move the term 32 to the other side

2. Make the coefficient of C = 1

Divide both sides by 9/5

You can Multiply the bracket (F- 32) by 5/9

Answer:

let marked prize=mp

discount=10%

sp=mp-d%ofmp=mp(1-10/100)=0.9mp

vat=15%

The key point in the equation log base 13 X = Y is that it represents the logarithmic relationship between the base 13 logarithm of X and the variable Y. The asymptote in this equation is the line Y = 0, which represents the limit or boundary as Y approaches negative or positive infinity.

To find the key point, we need to rearrange the equation to isolate X. Taking the exponentiation of both sides with base 13, we get X = 13^Y. This means that for any given value of Y, X is equal to 13 raised to the power of Y.

To find the asymptote, we can consider the behavior of the equation as Y approaches negative or positive infinity.

As Y approaches negative infinity, the value of X will approach zero, since 13 raised to a very large negative power becomes very small.

As Y approaches positive infinity, the value of X will increase without bound, as 13 raised to a very large positive power becomes very large.

In summary, the key point in the equation log base 13 X = Y is that X is equal to 13 raised to the power of Y. The asymptote is the line Y = 0, representing the limit or boundary as Y approaches negative or positive infinity.

for such more questions on logarithmic

https://brainly.com/question/30193034

#SPJ8

In this scenario, we are considering an investment that will pay $3,000 in 34 years. We are given an appropriate discount rate of 8 percent. To determine the present value of this investment, we can use the present value formula. Additionally, we are provided with the information that the investment is being sold for $773, and we need to calculate the rate of return investors will earn on this investment.

a. Present value of the investment:

To calculate the present value of the investment, we use the present value formula:

Present Value = Future Value / (1 + Discount Rate)^n,

where Future Value is $3,000, the Discount Rate is 8 percent (0.08), and n is the number of years, which is 34 in this case.

Present Value = $3,000 / (1 + 0.08)^34 = $219.13

Therefore, the present value of the investment, considering an 8 percent discount rate, is $219.13.

b. Rate of return on the investment:

The rate of return on an investment is calculated using the formula:

Rate of Return = (Future Value - Purchase Price) / Purchase Price * 100,

where Future Value is $3,000 and the Purchase Price is $773.

Rate of Return = ($3,000 - $773) / $773 * 100 ≈ 288.46%

Therefore, the rate of return investors can earn on this investment, if they buy it for $773, is approximately 288.46%.

Learn more about percent here:

https://brainly.com/question/31323953

#SPJ11