Mary bought two doughnuts and a carton of milk for $2.87. The carton of milk was $1.29. How much is one doughnut?
equation

The high temperature for today using a 3-day moving average is 92 degrees.

To calculate the high temperature for today using a 3-day moving average, we take the average of the temperatures from the past three days, including today.

Given the daily high temperatures in St. Louis for the last week:

92, 92, 93, 95, 95, 86, 95 (yesterday)

To find the 3-day moving average for today's high temperature, we consider the temperatures from yesterday, the day before yesterday, and three days ago.

(95 + 86 + 95) / 3 = 92

Therefore, the high temperature for today, calculated using a 3-day moving average, is approximately 92 degrees Fahrenheit, rounded to one decimal place.

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Answer:

A linear pair consists of supplementary angles

Step-by-step explanation:

Because a linear pair is 2 lines that form an 180 degree angle.

The statement that best describes a linear pair is that  A linear pair consists of supplementary angles. The correct option is B.

When the sum of two angles measures up to 180° then these angles are known as supplementary angles of each other.

for example, ∠x + ∠y = 180°, therefore, the ∠x and ∠y are the supplementary angles of each other.

If a straight line is intersected by a line, then there are two angles form on each of the sides of the considered straight line. Those two angles are two pairs of linear angles. That means, that if linear angles are aligned adjacent to each other, their exterior sides will make a straight line.

Further, since the angle at any side of a line is 180°. Therefore, the sum of these two angles will be equal to 180°.

Hence, the statement that best describes a linear pair is that  A linear pair consists of supplementary angles.

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Answer:

(2x−1)(x+4)

Step-by-step explanation:

2x2+7x−4=(2x−1)(x+4)

Answer:

download cymath has answer with step by step work

Answer:

what grade is this ?ujkko

TCP provides error checking to ensure reliable data delivery, making option A the correct answer. Only the propagation delay is not caused by the store-and-forward strategy employed by switching devices.

TCP (Transmission Control Protocol) provides error checking as part of its services. It ensures reliable data delivery by using acknowledgments and sequence numbers to detect and recover from packet loss, errors, or out-of-order delivery. When a TCP receiver receives data, it sends an acknowledgment (ACK) back to the sender to confirm the successful reception of packets. If the sender does not receive an ACK for a particular packet within a specified timeout period, it assumes the packet was lost or damaged and retransmits it.

TCP provides error checking to ensure reliable data delivery, making option A the correct answer.

The propagation delay is the time it takes for a signal to travel from the source to the destination. It is determined by the physical distance between the devices and the speed of signal propagation in the transmission medium. The propagation delay is an inherent characteristic of the medium and cannot be eliminated by switching devices or other strategies.

The other three options—processing delay, queuing delay, and transmission delay—are all caused by the store-and-forward strategy used by switching devices. Processing delay refers to the time taken to examine and process the packet headers. Queuing delay occurs when packets have to wait in a queue before being transmitted. Transmission delay is the time it takes to push the bits onto the transmission medium.

Among the given options, only the propagation delay is not caused by the store-and-forward strategy employed by switching devices.

3. The correct answer is A. The system is very well-engineered.

In a statistical multiplexing system, the queuing delay is the delay experienced by packets waiting in a queue before being transmitted. If the average queuing delay is very close to zero, it indicates that the system is well-engineered and efficiently managing its resources. A well-designed system can minimize or eliminate queuing delays by appropriately allocating resources and ensuring efficient scheduling algorithms.

Traffic intensity, which represents the ratio of the average traffic load to the transmission capacity, does not directly determine the queuing delay. It is possible to have low queuing delays even with high traffic intensity if the system is well-designed.

When the average queuing delay is close to zero, it suggests that the system is well-engineered and efficiently utilizing its resources, as stated in option A.

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If two number cubes are tossed , then the  probability of a sum of 7 or 11 is  2/9  .

In the question ,

it is given that ,

two number cubes are tossed ,

the probabilities of each sum is given ,

we have to find the probability of a sum of 7 or 11 ,

that is P( sum 7 or 11) ,

to find the probability of sum of 7 or 11 , we add the individual probability of 7 and 11 ,

which is written as ,

P( sum 7 or 11) = P(7) + P(11)

Substituting the value of P(7) and P(11) , from the question ,

we get ,

P( sum 7 or 11) = 1/6 + 1/18

taking LCM of 6 and 18 as 18 and solving further ,

we get ,

= 3/18 + 1/18

= 4/18

= 2/9

Therefore , the probability of P( sum 7 or 11) is = 2/9 .

The given question is incomplete , the complete question is

You toss two number cubes. If a sum of 7 or 11 comes up, you get 7 points, if not you lose 2 points.

The probabilities for each of the sums is:

P(2) = 1/36 P(3) = 1/18 P(4) = 1/12 P(5) = 1/9

P(6) = 5/36 P(7) = 1/6 P(8) = 5/36 P(9) = 1/9

P(10) = 1/12 P(11) = 1/18 P(12) = 1/36

The probability of a sum of 7 or 11 is ?  

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Answer:

280

Step-by-step explanation:

first, find the area of the triangle

formula: 1/2 (base × height)

so the area of the triangle is

= 1/2 (16×5)

= 1/2 (80)

= 40

then, find the area of the rectangle

formula: length × breadth

the area of the rectangle is

= 15 × 16

= 240

the area of the composite figure is the sum of the areas of the triangle and rectangle

= 40 + 240

= 280

Answer:

unit rate: (1,1)

Step-by-step explanation:

Answer:

I need help because I do t know how to do math its so hard to do

The Stock Market Nadia is a stockbroker. She earns 13​% commission each week. Last​ week, she sold ​$5,400 worth of stocks.

To find out how much did she make last week in commission is as follows:

Her commissions in 2011 is $36,504.

Given commission for every week is 13%

She sold = $5,400 worth stocks

According to the commission she made in the last week is

\(5,400*\frac{13}{100} = 54*13\)

= 702

So, she made $702 in commission for the year 2011, that has 52 weeks

Therefore her commission in 2011 is

52 * 702 = 36,504

Hence the answer is, $36,504 commission she make in the year 2011.

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Answer:

15 months

Step-by-step explanation:

Let's x represent the number of months

We Know

Phillip has $100 in the bank and deposits $18 per month.

18x + 100

Gil has $145 in the bank and deposits $15 per month.

15x + 145

For how many months will Gil have a larger bank balance than Phillip?

Let's solve

15x + 145 > 18x + 100

-3x + 145 > 100

-3x > -45

x < 15

So, for 15 months, Gil has a larger bank balance than Phillip.

Once you have the distance covered in the first 6.5 hours, you can divide it by 6.5 to calculate your average speed during that time interval.

To estimate your speed at 6.5 hours into the trip, you would need to know the distance covered during that time interval. The speed is calculated by dividing the distance traveled by the time taken.

To make an accurate estimate, you would need the following information:

Distance covered: You would need to know how far you have traveled in the first 6.5 hours of the trip. This could be obtained from a GPS device, odometer, or by referencing a map.

Time taken: You already know that it has been 6.5 hours into the trip.

Consistency of speed: It is assumed that your speed has remained relatively constant throughout the trip. If there were significant variations in speed, the estimate would be less accurate.

This estimate assumes that your speed has been consistent, without any major fluctuations. Keep in mind that this estimate represents your average speed over the given time period, and your actual speed at any specific moment during the trip could have been different.

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Answer:

Part A)

The polynomial is:

\(A=4(x+8)(x+10)\)

Or, expanded:

\(A=4x^2+72x+320\)

Part B)

When the width of the frame is two inches, the area of the picture including the frame is 480 square inches.

Step-by-step explanation:

Part A)

For solely the picture, the width is 16 inches, and the length is 20 inches.

If we include the width of the frame, then we will have to add x to both sides of the 16 inches. Then the new width will be (16 + 2x) inches.

Likewise, the new length will be (20 + 2x) inches.

The area of a rectangle is given by its width multiplied by its length. Then the polynomial that represents the area will be:

\(A=(16+2x)(20+2x)\)

To simplify calculations, we can factor out a two from both factors. Thus:

\(A=2(8+x)\cdot 2(10+x)=4(x+8)(x+10)\)

Expanded, this will be:

\(A=4(x^2+18x+80)=4x^2+72x+320\)

Part B)

When the width of the frame is two, x = 2. Then the area is:

\(A=4(2+8)(2+10)=4(10)(12)=40(12)=480\text{ inches}^2\)

The area of the picture including the frame will be 480 square inches.

Answer:

Step-by-step explanation:

1). Slope of a line shown on the graph will be,

   Slope = \(\frac{\text{Rise}}{\text{Run}}\)

              = \(\frac{-4}{1}\)

              = -4

2). Slope of the given horizontal line can be determined by,

    Slope = \(\frac{\text{Rise}}{\text{Run}}\)

    Since, rise of the given line is zero.

    Therefore, slope of the given horizontal line will be 0.

3). Slope of the line passing through the indicated line = -2

    Therefore, a line which has a rise = -2 and run = 1 can be drawn on the given blank grid (As attached).

Answer:

Step-by-step explanation:

1. -4. Explanations vary. Sample explanation: for each horizontal change of 1, the vertical change is -4, so the slope of the line is -4.

2. 0. Responses vary. Sample response: The amount of rainfall on a day with no rain.

3. A graph through the indicated point with a slope of -2.

One way in which water resources are consumed, given the options would be d. all of the above.

Water resources are consumed through various means, including drinking, industrial usage, and business operations. The availability and utilization of water play a pivotal role in multiple sectors.

Water serves as a fundamental resource for human and animal hydration, industrial processes, and diverse commercial activities. These sectors rely on water to fulfill their operational requirements, leading to the overall consumption of water resources.

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The full question is:

Which of the following is a way in which water resources are consumed? a. drinking b. industry c. business d. all of the above

Answer:

\(\huge\boxed{\sf 6xy-3x^2}\)

Step-by-step explanation:

Given Expression:

(x + y)² - (x - y)² + 2xy - 3x²​

Formulas used:

Expand the above expression according to the formulas

\(=x^2+2xy+y^2-(x^2-2xy+y^2)+2xy-3x^2\\\\= x^2+2xy+y^2-x^2+2xy-y^2+2xy-3x^2\\\\cancel \ out \ x^2 \ and \ y^2\\\\= 2xy+2xy+2xy-3x^2\\\\= 6xy-3x^2\\\\\rule[225]{225}{2}\)

Answer: 1/5

Step-by-step explanation:

Answer:

1) Midpoint: (4,7) and slope: 1

2) Midpoint: (5,3/2) and slope: 9/2

3) Midpoint: (9/2,1) and slope: 0

Step-by-step explanation:

1) R = (5,8) and P = (3,6)

Midpoint: (5+3)/2 = 4 and (8+6)/2 = 7

= (4,7)

Slope: (8-6)(5-3) = 2/2 = 1

2) M=(6,6) and N=(4,-3)

Midpoint: (6+4)/2 and (6 + - 3)/2

= (5,3/2)

Slope: (-3-6)/(4-6)

= -9/-2 = 9/2

3) A=(5,1) and M=(4,1)

Midpoint: (5+4)/2 and (1+1)/2

= (9/2, 1)

Slope: (1-1)/(5-4)

= 0/1

Answer:

C. The number of words, w, is the dependent variable

Answer:

1. x=3

2. x=7

Step-by-step explanation:

Answer:

3⅓ moves he have to make in garden

The solution to the inequality is:

x ∈ (-∞, -21].

The correct option is F.

To solve the given inequality, we'll first simplify the expression:

23 < 3x - 3 ≤ -66

To simplify the inequality,

23 < 3x - 3 ≤ -66

Adding 3 to all parts of the inequality:

23 + 3 < 3x - 3 + 3 ≤ -66 + 3

Simplifying:

26 < 3x ≤ -63

Next, divide all parts of the inequality by 3:

26/3 < 3x/3 ≤ -63/3

Simplifying:

8.67 < x ≤ -21

Therefore, the solution to the inequality is:

x ∈ (-∞, -21]

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If One account doubles every 2 years and other triples every 3 years , then the second account is growing more rapidly .

The First account doubles every 2 years ,

let the starting value that doubles in 2 years be = x ;

the value after 2 years = 2x , after 4 years 4x ,

after 6 years it will be 8x , after 8 years it will be 16x ,

similarly , after 12 years it will be = 64x .

The second account triples every 3 year ;

let the starting value that triples in 3 years be = y ;

the value after 3 years = 3y , after 6 years it will be = 9y ,

after 9 years it will be = 27y ,

Similarly after 12 years it will be = 81y .

So , we can see that after 12 years the amount in first account is 64 times the initial amount .

and after 12 years the amount in second account is 81 times the initial amount .

Therefore , second account is growing more rapidly than first account .

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Answer:

Area of a triangle is base x height / 2. First, 6 x 2 is 12. Then you divide by 2 with an outcome of 6.

Step-by-step explanation:

It has an area of 6 yards

Answer:

mine too

Step-by-step explanation:

It's important to use sound statistical methods and careful analysis to ensure that the inferences drawn are as accurate as possible.

Statistical inference is the process of drawing conclusions or making predictions about a population based on data from a sample of that population. In other words, statistical inference involves using the principles of probability and statistics to make generalizations about a larger group based on information collected from a smaller group.

For example, a political survey may be conducted to gather opinions from a sample of voters about a particular issue or candidate. The data collected from this sample can be used to make inferences about the opinions of the larger population of voters. Statistical inference allows us to estimate the opinions of the larger population based on the information gathered from the smaller sample.

To illustrate this, suppose a survey is conducted on a random sample of 1000 voters in a city, and 600 of them indicate that they support a particular candidate. Based on this sample, the surveyors can use statistical inference to estimate the proportion of voters in the entire city who support that candidate. A confidence interval could be constructed to provide a range of values within which the true proportion of voters who support the candidate is likely to lie. This estimate can be used to inform political strategy and decision-making.

However, it's important to note that statistical inference is subject to certain assumptions and limitations, and there is always a degree of uncertainty associated with making predictions or generalizations based on a sample. Therefore, it's important to use sound statistical methods and careful analysis to ensure that the inferences drawn are as accurate as possible.

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Because the temperature is greater, the relative humidity of the atmosphere is higher.

Water vapor is also measured by relative humidity (RH), which is stated as a percentage but RELATIVE to the air's temperature. In plenty of other terms, it is a comparison between the quantity of water vapor that is really present in the air and the maximum amount water vapor that is possible for the air at the current temperature.

By deducting the temperature just on wet-bulb thermometer from of the temperature just on dry-bulb thermometers and utilizing a relative humidity chart, one may determine the relative humidity.

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By the age of four, Adam knows that changing one's exterior characteristics  does not change one's gender. Adam has "acquired" or "learned" gender constancy.

Which of the three stages of gender constancy are you?

A child's developing sense of the permanency of being a boy or a girl, which happens in stages: gender identification, gender stability, and gender consistency. Gender constancy is similar to Piaget's concept of physical property conservation in that gender constancy relates to the awareness that gender is an invariant human property that is stable through time and superficial changes in appearance. It starts at the age of six or seven, when a youngster realizes that gender remains consistent across settings (e.g. if a man puts on a dress he is still a man).

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Answer:

1/4

Step-by-step explanation:

divide numerator and denominator by 3