Which of the following is equivalent to -(7/4) ?

A. 7/-4



B. -7/-4



C. 4/-7



D. 7/4

Answer:

B.

at most 199 miles

Step-by-step explanation:

To find how many miles Emily drove, we need to use the equation

Total cost = flat fee + miles driven * cost per mile

Substituting in the numbers

121 ≥ 21.50 + m * .5

121≥ 21.50 +.50m

Subtract 21.50 from each side.

99.50 ≥ .5m

Divide each side by .5

199 ≥m

Emily drove less than or equal to 199 miles

the total years of education completed in a larger is normally distributed population

A random sample is a subset of a population that is selected without bias, ensuring that each individual within the population has an equal chance of being included. In this case, the population refers to a large group of adults over the age of 25. The random sample being considered consists of 5 adults from this population. The variable "e" represents the total years of education completed by each individual in the sample.
By selecting a random sample, we aim to accurately represent the larger population, which is assumed to be normally distributed. A normal distribution is a bell-shaped curve that describes how a set of data is spread out, with most values clustered around the mean, and fewer values occurring farther away from the mean. In this scenario, the mean would represent the average years of education completed by adults over the age of 25 in the population.
The random sample of 5 adults allows us to make inferences about the larger population's education level, assuming the sample is representative of the population. The sample's mean, variance, and other statistics can be calculated to estimate population parameters. However, the small sample size may limit the accuracy and generalizability of these inferences, as larger sample sizes typically provide more reliable estimates.

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Answer:

REFLECTION:

1.) The thing/s that I like most about our topic is/are getting to work with a more difficult aspect of numbers.

2.) The thing/s that I hate about our topic is/are dealing with the negative numbers .

3.) In doing our activity, I was able to use the number line to solve complicated problems.

Step-by-step explanation:

A cheerful teen willing to help,

stay salty,

stay positive...

Answer:

1,485.26

Step-by-step explanation:

100% is 1442

1% is 14.42

10% is 144.2

9% is 10 - 1 so its 129.78

1442 add 129.78 is 1 571.78

5% is  72.1

so add 72.1 and 14.42 86.52 and take it from 1571.78

answer is 1,485.26

The answer would be t = 8p + 72

please mark this answer as brainlist

An expression in terms of xx that represents the total amount that Jaxon paid at the register is 1.04 (xx - 0.20(xx)).

The total cost is the amount calculated after any discount for an item and along with the tax incurred for an item to be purchased.

For the given situation,

Jaxon goes to a store and buys an item that costs xx dollars.

He has a discount coupon for 20%

Convert percentages to decimals = 0.20

The tax percentage is 4%

Convert percentages to decimals = 0.04

The discounted amount will get less than the cost price. So,

⇒ xx - 0.20(xx)

The tax amount for the item will get added to the final cost of the item. Thus the expression becomes,

⇒ 1.04 (xx - 0.20(xx))

Hence we can conclude that the expression for the total cost is 1.04 (xx - 0.20(xx))

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Answer:

+2 each year. 40+(2+y), y being years.

1.05 should be it

Step-by-step explanation:

In a recursive formula, each term of the sequence is found by using the previous term.  In this case, the sequence is geometric because we are multiplying each term by the same constant, called a common ratio.

To find this common ratio, we find the percent of change between terms.  We do this by using the formula

% change = (amount of change)/(original amount)

The amount of change between the first two terms is 105-100 = 5.  This makes the percent change

5/100 = 0.05

The amount of change between the second two terms is 110.25-105 = 5.25.  This makes the percent change

5.25/105 = 0.05

However, the common ratio in the sequence is not 0.05.  This is because multiplying by this decimal would make the terms decrease instead of increasing.  In this case, we are taking 100% of the number and adding an extra 5% (0.05 = 5%); this makes our common ratio 105% = 1.05.

This gives us the recursive formula

Answer:

the correct answer is C. f(n + 1) = 1.05f(n)

Step-by-step explanation:

just got it right 2020 edg

The x-component of fluid acceleration in terms of x and y is 2.

To find the x-component of fluid acceleration (ax), we need to differentiate the x-component of velocity (u) with respect to time.

However, the given equations provide the expressions for u in terms of x and y, not time. Therefore, we need to differentiate u with respect to x and y instead.

Given: u = 2x + y^2

To find the x-component of fluid acceleration (ax), we differentiate u with respect to x while treating y as a constant:

ax = ∂u/∂x = ∂(2x + y^2)/∂x = 2

The x-component of fluid acceleration, ax, is simply 2.

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Answer:

you see on the bottom right that where you plot 2, -1 start at the x axis go across 2 spaces and go down one.

for -3,5 go to the to left that is where you're going to plot -3,5 start at the x axis go across three spaces and go up 5 spaces.

For the last one I don't know whether it says 6,6 or 8,8 but to get either of those space you would go to the top right start at the x axis go across 6 or 8 spaces and go up 6 or 8 spaces

Step-by-step explanation:

Answer:

EWWWWWWWWWWWWW UR BI???!!

Step-by-step explanation:

The probability that a flight between New York City and Chicago is between 125 and 140 minutes is 50%.

To find the probability that a flight is between 125 and 140 minutes, we need to calculate the proportion of the total possible outcomes that fall within that range.

The total range of possible flight times is 150 - 120 = 30 minutes.

The range of interest is 140 - 125 = 15 minutes.

Therefore, the probability is given by the ratio of the range of interest to the total range:

Probability = (Range of interest) / (Total range) = 15 / 30 = 0.5.

So, the probability that a flight is between 125 and 140 minutes is 0.5 or 50%.

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--The given question is incomplete, the complete question is given below " The time to fly between New York City and Chicago is uniformly distributed with a minimum of 120

minutes and a maximum of 150 minutes. What is the probability that a flight is between

125 and 140 minutes?"--

Answer:

Need more

Step-by-step explanation:

I think you're missing something from the question.

Answer:6340000

Step-by-step explanation:

Answer:

x=5+5√2; x=5-5√2

Step-by-step explanation:

To complete the square we need to turn part of the equation into a perfect square trinomial. Remember, in any equation we can do anything we like to the numbers as long as both sides stay equal.

First, let's subtract 10 from both sides.

x^2-10x=25

This does not factor, so we need to turn it into a perfect square trinomial by adding the quantity equal to (b/2)^2. In this case, (b/2)^2 is 25.

x^2−10x+25=25+25

IMPORTANT: You must keep the sides of the equation equal, so we added a 25 to the right side as well to keep the equation true.

From here we can factor, simplify and find our zeroes.

(x-5)(x-5)=50

(x-5)^2=50

x-5=±√50

x=5±√50

√50=5√2

So our final answer is:

x=5+5√2; x=5-5√2

HTH :)

Answer:

Step-by-step explanation:

Step-by-step explanation:

1 . x - 4y = -10

2x + y = -11

multiply the first equation with 2

2x - 8y = -20

-

2x + y = -11

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

= 0 - 9y = -9

y = 1

x = -6

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

2.

a - 3b = 24

-

a + 2b = -16

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

= 0- 5b = 40

b = - 8

a = 0

and so on

Answer:\(\sqrt{5x\)

Step-by-step explanation:

Sequences can start at either 0 or 1, depending on the specific sequence and the conventions used.

In mathematics, there are two main ways to number the elements of a sequence: zero-indexing and one-indexing. In zero-indexing, the first element of a sequence is assigned the index 0, the second element is assigned the index 1, and so on. This is the standard convention used in computer science and programming.

On the other hand, in one-indexing, the first element of a sequence is assigned the index 1, the second element is assigned the index 2, and so on. This is the standard convention used in mathematics and many other fields.

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Answer: We can simplify the left side of the equation as follows:

7×10^0 - 3×10^-1 = (7/1)×10^0 - (3/10)×10^0 = (7-0.3)×10^0 = 6.7×10^0

Substituting this into the given equation, we get:

6.7×10^0 = k×10^0

Dividing both sides by 10^0, we get:

k = 6.7

Therefore, the value of k that satisfies the given equation is 6.7.

Answer:

3

Step-by-step explanation:

The slope of a line can be found by dividing the amount that the line "rises" over a certain amount of "run". In this case, the line rises 6 units while moving 2 units to the right. 6/2=3, meaning that the slope of this line is 3. Hope this helps!

Answer: The coefficient is -1

Step-by-step explanation: this is because -1 is in front of the x

Therefore,

-1 is the coefficient

Answer:

Step-by-step explanation:

coefficient of x is -1

The Advanced Encryption Standard (AES) is a symmetric encryption algorithm that has a block size of 128 bits. AES is used to encrypt sensitive data like passwords, credit card numbers, and other personal data.

Here's the answer to the question given:

Given values:

\(Plaintext = {0FOEODOCOBOA09080706050403020100}\)

\(Key = {02020202020202020202020202020202}\)

Solution:

First, we'll create a State array using the given plaintext.

State array is a 4x4 matrix.

\(State array (S) = 0F OE OD OC BO A0 90 80 70 60 50 40 30 20 10 00\)

Next, we'll apply the AddRoundKey transformation to the State array.

AddRoundKey:

In this step, the bits of the State array are XORed with the bits of the key to produce a new State array.

The AddRoundKey transformation is performed in the first round of AES and is repeated in every round thereafter.

For this example, we'll use the given key.

Key array is also a 4x4 matrix.

\(Key array (K) = 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02\)

The State array is XORed with the Key array to produce the new State array.

\(State array (S) = 0F XOR 02 = 0D OE XOR 02 = OC OD XOR 02 = 0F OC XOR 02 = 0E A0 XOR 02 = A2 90 XOR 02 = 92 80 XOR 02 = 82 70 XOR 02 = 72 60 XOR 02 = 62 50 XOR 02 = 52 40 XOR 02 = 42 30 XOR 02 = 32 20 XOR 02 = 22 10 XOR 02 = 12 00 XOR 02 = 02\)

The value of State after initial AddRoundKey is:

\(0D OC 0F 0E A2 92 82 72 62 52 42 32 22 12 02\),

which is the output of the AddRoundKey transformation.

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The ∠3+ ∠1 = 90°. in the given figure are the same just using the properties of Vertically angles.

What is Vertically opposed angles?

Two lines intersecting at a point create vertical angles. Every time they are on an equal footing. Alternatively stated, four angles are created anytime two lines cross or intersect. Two opposed angles are equal and are referred to as vertical angles, as we can see. Due to their position opposite one another, they are also known as "Vertically opposed angles."

Angles that are vertically opposed to one another at a certain vertex are formed by two straight lines intersecting. The equality of the vertically opposed angles has been established.

∠1  and ∠2 are vertical angles, which means ,

∠1  =∠2

Given in the question is ∠3+ ∠2 = 90

As both ∠1  and ∠2 are the same so we can write ∠3+ ∠1 = 90°.

Hence, The ∠3+ ∠1 = 90°. in the given figure are same.

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The group of volunteers can make a total of 200 masks out of 25 yards of fabric.

To calculate the number of masks that can be made, we divide the total amount of fabric (25 yards) by the amount of fabric required per mask (1/8 yard). To do this, we first convert the fraction 1/8 to decimal form, which is 0.125. Then, we divide the total fabric (25 yards) by the fabric required per mask (0.125 yards). This can be done by dividing 25 by 0.125, which equals 200. Therefore, the group of volunteers can make a total of 200 masks out of 25 yards of fabric. Each mask requires 1/8 yard of fabric, so dividing the total fabric by the fabric required per mask gives us the total number of masks that can be made.

Calculation steps:
1. Convert the fraction 1/8 to decimal form: 1/8 = 0.125.
2. Divide the total fabric (25 yards) by the fabric required per mask (0.125 yards):
  25 / 0.125 = 200.


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Answer:

The equation is 3x + 24 = 6x

Step-by-step explanation:

Let

Zach's age = x

If Zach added 8 to his age and multiplied this sum by 3.

Zach = 3(x + 8)

= 3x + 24

James = 6x

Zach's age = James's age

3x + 24 = 6x

Collect like terms

24 = 6x - 3x

24 = 3x

Divide both sides by 3

x = 24/3

= 8

x = 8

Check

Zach = 3(x + 8)

= 3(8+8)

= 3(16)

= 48 years

James = 6x

= 6(8)

= 48 years

The equation is 3x + 24 = 6x

The correct answer is a. H0: u≥2 hours and H1:u<2 hours. When testing a right-tailed hypothesis using a significance level of 0.025, a sample size of n=13, and with the population standard deviation unknown, the critical value is as follows:

To determine the critical value, we need to use the t-distribution since the population standard deviation is unknown.

Using a t-distribution table or calculator with 12 degrees of freedom (n-1), a one-tailed test, and a significance level of 0.025, the critical value is 2.1604.

If the test statistic is greater than or equal to this value, we can reject the null hypothesis in favor of the alternative hypothesis, which is a right-tailed hypothesis.

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