In the Greenwich Public Library,
about one-tenth of the books are
overdue when they are returned. An
average of 580 books are returned
to the library each day. About how
many books could be expected to be
returned on time each day?

the answer is:

Each equal length of ribbon is 5.25 ft

Step-by-step explanation:

21 divided by 4 is 5.25

To find the number of distributed quantities division operator is used. Each length of ribbon was 5.25 foot long.

Division is a mathematical operation used to divide a number into equal parts. When a number is divided by another number, a quotient and remainder is obtained.

Given length of ribbon = 21 foot

Number of parts it has to be divided = 4.

So, to get the length of each part divide the total length by 4.

Thus, the length of each part is 21/4 = 5.25 foot.

Hence,  the length Mrs. Wally' s each ribbon is 5.25 foot.

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Answer:

y = -3x - 1

Step-by-step explanation:

The slope-intercept form is y = mx + b

m = the slope

b = y-intercept

Slope = rise/run or (y2 - y1) / (x2 - x1)

Point (-1, 2) (1, -4)

We see the y decrease by 6 and the x increase by 2, so the slope is

m = -6 / 2 = -3

Y-intercept is located at (0, - 1)

So, the equation is y = -3x - 1

The point prevalence of brilliance at the end of Week 1 is 0.08 or 8%.

The point prevalence of brilliance at the end of Week 2 is 0.17 or 17%.

The point prevalence of brilliance at the end of Week 3 is 0.33 or 33%.

Using person-weeks as denominator, the incidence of brilliance over the course of the 10-week course is 0.017 or 1.7%

In epidemiology context, brilliance can be calculated through calculating point prevalence, cumulative incidence, and incidence rate. The provided data table can be used to determine the point prevalence, incidence, and incidence rate of brilliance among PHE 450 students. So, the calculations of point prevalence, cumulative incidence, and incidence rate based on the provided data are as follows:

The point prevalence of brilliance at the end of Week 1 can be calculated by the following formula; Point prevalence = Total number of existing cases at a given time ÷ Total population at that time

Student #8 was the only existing case of brilliance at the beginning of Week 1, so the point prevalence of brilliance at the end of Week 1 is; Point prevalence = 1 ÷ 12 = 0.08 or 8%.

The point prevalence of brilliance at the end of Week 2 can be calculated by the following formula; Point prevalence = Total number of existing cases at a given time ÷ Total population at that time

Student #3 and Student #8 were existing cases of brilliance at the beginning of Week 2, so the point prevalence of brilliance at the end of Week 2 is; Point prevalence = 2 ÷ 12 = 0.17 or 17%.

The point prevalence of brilliance at the end of Week 3 can be calculated by the following formula; Point prevalence = Total number of existing cases at a given time ÷ Total population at that time

Student #3, #4, #6, and #8 were existing cases of brilliance at the beginning of Week 3, so the point prevalence of brilliance at the end of Week 3 is; Point prevalence = 4 ÷ 12 = 0.33 or 33%.

The incidence of brilliance can be calculated by the following formula; Incidence = Total number of new cases ÷ Total person-weeks of observation

Student #5 and Student #7 developed brilliance during the 10-week course, so the incidence of brilliance over the course of the 10-week course is; Incidence = 2 ÷ 120 = 0.017 or 1.7%.

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Answer:

1-11

2-17

3-23

4-29

5-35

6-41

7-47

8-53

Step-by-step explanation:

They were only in stage one of the 1st day and stage 2 for day 2 and 3 and stage 3 for days 4 - 7 and after day 8 there was no cure

Answer:

what did you want me to say

To find the mean number of calls per hour, we divide the average number of calls per day by 24:

Mean number of calls per hour = 19.2/24 = 0.8

a) To find the probability that in a randomly selected hour the number of calls is exactly 2, we use the Poisson distribution formula:

P(X = 2) = (e^-0.8)*(0.8^2)/(2!) = 0.213

b) To find the probability that in a randomly selected hour the number of calls is more than 2, we can use the complement rule and subtract the probability of getting 0, 1, or 2 calls from 1:

P(X > 2) = 1 - P(X = 0) - P(X = 1) - P(X = 2)

P(X > 2) = 1 - (e^-0.8)*(0.8^0)/(0!) - (e^-0.8)*(0.8^1)/(1!) - (e^-0.8)*(0.8^2)/(2!)

P(X > 2) = 0.579

c) To find the probability that in a randomly selected hour the number of calls is less than 2, we add the probabilities of getting 0 or 1 call:

P(X < 2) = P(X = 0) + P(X = 1)

P(X < 2) = (e^-0.8)*(0.8^0)/(0!) + (e^-0.8)*(0.8^1)/(1!)

P(X < 2) = 0.264.

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Answer:

121

Step-by-step explanation:

5 Raise to the power of 3

125-4=

121

Answer:

Step-by-step explanation:

121 simplify the equation

Answer:

what

Step-by-step explanation:

for your answer of this question

perimeter =sum of all side.

sorry I am unable to find perimeter without figure.

Answer:

x^2 -2x+1

Step-by-step explanation:

(x - 1 )(x - 1)

FOIL

first: x*x = x^2

Outer: -1x

inner: -1x

Last: -1*-1 = 1

Add these together

x^2 -1x-1x+1

x^2 -2x+1

Answer:

x² - 2x +1

Step-by-step explanation:

(x - 1) (x - 1)

x(x - 1) - 1(x - 1)

x² - x - x + 1

x² -2x + 1

Answer:

69?

Step-by-step explanation:

So you first add 1 to 73 then it becomes 74 you subtract 24 its 50+19=69

Answer:

$45

Step-by-step explanation:

Answer:

50 grams

Step-by-step explanation:

36 grams = 72%

→ Find 1% by dividing both sides by 72

0.5 grams = 1%

→ Times both sides by 100 to find 100%

50 grams = 100%

Answer:

Step-by-step explanation:

700.5

Answer: Melinda’s loan will be equal to the value of the car after 10 months.

Step-by-step explanation:

Hi, to answer this question we have to equal both equations:

Melinda’s loan will be equal to the value of the car

y = y

10,000 – 250x = 8,000 – 50x

Solving for x:

10,000-8,000 = -50x+250x

2,000 = 200x

2,000/200 =x

10 = x

Melinda’s loan will be equal to the value of the car after 10 months.

Feel free to ask for more if needed or if you did not understand something.

Step-by-step explanation:

i hope this is helpful!........

The dimensions of the scale drawing is length = 168 inches and width = 126 inches

Scale drawing helps to represent surfaces on earth in a paper by either enlarging its dimension, reducing its dimension by a constant factor called the scale factor.

The conversion or scale factor is 21 inches = 4 meters

If 21 inches = 4 meters,

then 1 meter = 21/4 inches

32 meters inches = 32 x 21/4 = 168 inches

24 meters = 24 x 21/4 = 126 inches.

In conclusion, length of the scale drawing is 168 inches and width of the scale drawing iss 126 inches

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False they are not congruent.

Start by looking at the Properties of congruent triangle:

1. SSS -"side, side, side" and means that we have two triangles with all three sides equal

we are only given the length of one side in this triangle so we can not use this one to determine if the triangles are congruent or not.

2.SAS -"side, angle, side" and means that we have two triangles where we know two sides and the included angle are equal.

once again, we are only given the length of one side in each triangle, so this one also cant help us to determine if the triangles are congruent.

3. ASA- "angle, side, angle" and means that we have two triangles where we know two angles and the included side are equal.

in the triangle to the right we get: ∠62, 7, ∠60

in the triangle to the left we get : ∠58, 7, ∠62

these do not match up with each other.

with this information we can determine that the triangles are not congruent therefore the answer is B. False

Step-by-step explanation:

A

Step-by-step explanation:

ik trust me

Answer:

A. The prepaid phone plan will have a steeper line and lower y-intercept.

Step-by-step explanation:

did it on edge 2020

The area of the triangle is approximately 36.83 square units.

To find the area of a triangle using calculus, we can use the formula:

A = (1/2) ∫(x2 - x1)dy

Where x1 and x2 are the x-coordinates of the vertices, and dy is the change in the y-coordinate.

First, we need to find the equations of the lines that make up the sides of the triangle. The line between (0,0) and (6,1) has the equation y = (1/6)x. The line between (6,1) and (3,7) has the equation y = -2x + 13. The line between (3,7) and (0,0) has the equation y = (7/3)x.

Now we can use the formula to find the area of the triangle. We'll integrate from y = 0 to y = 1 for the first side, from y = 1 to y = 7 for the second side, and from y = 7 to y = 0 for the third side:

A = (1/2) ∫(x2 - x1)dy

= (1/2) ∫[(6x - 0) - (0 - 0)]dy from y = 0 to y = 1

+ (1/2) ∫[(13 - 2x) - (6x - 0)]dy from y = 1 to y = 7

+ (1/2) ∫[(0 - 0) - (7x/3 - 0)]dy from y = 7 to y = 0

= (1/2) ∫6xdy from y = 0 to y = 1

+ (1/2) ∫(13 - 8x)dy from y = 1 to y = 7

+ (1/2) ∫(-7x/3)dy from y = 7 to y = 0

= (1/2) [(3 - 0) + (49 - 8) + (-49/3 - 0)]

= (1/2) [(3) + (41) + (-49/3)]

= (1/2) [(147/3) + (123/3) + (-49/3)]

= (1/2) [(221/3)]

= 36.83

So the area of the triangle is approximately 36.83 square units.

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The solution to the inequality are the region in the shaded area and the graph is attached

From the question, we have the following parameters that can be used in our computation:

y ≥3(0.8)^x

y ≥ x² - 5

Represent properly

y ≥ 3(0.8)^x

y ≥ x² - 5

Next, we make a plot of the system to determine the solution

The shaded area in the plot represent the solution to the inequality

In this case, one of the coordinates in the shaded area has a coordinate of (0, 5)

None of the options represent the shaded area (see attachment)

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Answer:

m = 55°

Step-by-step explanation:

The entire angle is a right angle.

Right angles are always equal to 90°

In this picture, the right angle is split in half.

So to find the measure of angle m, we have to subtract 35 from 90.

\(90-35\\=55\)

m = 55°

The equation of the output D of Half-subtractor using NOR gate is D = A'B' + AB, a half-subtractor is a digital circuit that performs the subtraction of two binary digits. It has two inputs, A and B, and two outputs, D and C.

The output D is the difference of A and B, and the output C is a borrow signal.

The equation for the output D of a half-subtractor using NOR gates is as follows:

D = A'B' + AB

This equation can be derived using the following logic:

The output D is 1 if and only if either A or B is 1 and the other is 0.

The NOR gate produces a 0 output if and only if both of its inputs are 1.

Therefore, the output D is 1 if and only if one of the NOR gates is 0, which occurs if and only if either A or B is 1 and the other is 0.

The half-subtractor can be implemented using NOR gates as shown below:

A ------|NOR|-----|D

        |      |

B ------|NOR|-----|C

The output D of the first NOR gate is the exclusive-OR (XOR) of A and B. The output C of the second NOR gate is the AND of A and B. The output D of the half-subtractor is the complement of the output C.

The equation for the output D of the half-subtractor can be derived from the truth table of the XOR gate and the AND gate. The truth table for the XOR gate is as follows:

A | B | XOR

---|---|---|

0 | 0 | 0

0 | 1 | 1

1 | 0 | 1

1 | 1 | 0

The truth table for the AND gate is as follows:

A | B | AND

---|---|---|

0 | 0 | 0

0 | 1 | 0

1 | 0 | 0

1 | 1 | 1

The equation for the output D of the half-subtractor can be derived from these truth tables as follows:

D = (A'B' + AB)' = (AB + A'B') = AB + A'B' = A'B' + AB

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There is a 2.28% likelihood that the average weight of the bags in a randomly selected pack is 2 or more grams lighter than advertised.

Assume that the advertised weight is equivalent to the typical weight of one bag, which is 30 grammes. A pack of nine bags would therefore weigh 9 x 30 = 270 grammes.

Let's now assume that each bag actually weighs 30 grammes on average, with a 2 gramme standard deviation, according to a normal distribution (which represents the variability in the weight of the bags).

We need to apply the central limit theorem to determine the probability that the average weight of the bags in a randomly selected pack is 2 or more grammes less than stated. According to this theorem, the mean of a sufficiently large sample (in this case, nine bags) will have a sampling distribution that is roughly normal, with a mean of 30 grammes and a standard deviation of 2 grammes divided by the square root of the sample size (9 = 0.67 grammes). The mean will also be equal to the population's standard deviation.

We can determine the likelihood that the sample mean of a pack of 9 bags weighs less than 28 grammes using a normal distribution table or calculator (which is 2 grammes less than the advertised weight of 30 grams). This likelihood is roughly 0.0228, or 2.28%.

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It's B!!!           ik cuz i ggogled it lol

Answer:

I think the answer is B. $92

Step-by-step explanation:

$80 time (115 on calculator will give you 9200

Answer:

f(x) = 3x + 50 is the equation in function notation.

(22, 116) is the ordered pair for 22 deliveries.

Step-by-step explanation:

First, create the equation. Let x represent how many deliveries he makes.

Since he makes $3 on each delivery, the total amount he makes from deliveries can be represented by 3x.

He also makes $50 a shift, so add this to 3x in the equation:

f(x) = 3x + 50 is the equation in function notation.

Find how much he will make if makes 22 deliveries. Plug in 22 as x:

f(x) = 3x + 50

f(22) = 3(22) + 50

f(22) = 66 + 50

f(22) = 116

So, he will make $116.

As an ordered pair, the solution is (22, 116).

Answer:

f(x) = 3x + 50

Step-by-step explanation:

If he makes $50.00 a shift, and $3.00 for each delivery, and he makes 22 deliveries in one shift then the equation (in function notation) would be f(x) = 3x + 50.  and the solution to the equation is 116.

Answer:

90º

Step-by-step explanation:

Looks like a 90º (or right angle) to me. :)

The letter I

hope it helps

Answer:

The letter l

Answer A is correct

hope this helps

brainliest appreciated

good luck! have a nice day!

The answer choice that represents a system of linear equations for the data in tables is: H. y = 2x + 1 (Equation 1) and y = 4x - 7 (Equation 2).

In mathematics, an equation is a statement that asserts the equality of two expressions. It typically contains one or more variables, which are placeholders for unknown values, and constants, which are known values. The goal in solving an equation is to find the values of the variables that satisfy the equation, that is, make it true. Equations can be linear or nonlinear, and they may involve one or more variables. Some common types of equations include polynomial equations, trigonometric equations, exponential equations, and logarithmic equations.

Here,

The values in the tables correspond to the points on the graph of the linear functions. By using any two points from each table, we can determine the slope and y-intercept of each function and write an equation in slope-intercept form. Then, we can write a system of linear equations by equating the two functions. The only answer choice that satisfies this is H.

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The annual rate of interest is 0.01858

To calculate the annual rate of interest, we need to determine the interest earned in 9 months on an investment of $19,732.65. The interest earned is $275.03. Using this information, we can calculate the annual rate of interest by dividing the interest earned by the principal investment and then multiplying by the appropriate factor to convert it to an annual rate.

To calculate the annual rate of interest, we can use the formula:

Annual interest rate = (Interest earned / Principal investment) * (12 / Number of months)

In this case, the interest earned is $275.03, the principal investment is $19,732.65, and the number of months is 9.

Plugging in the values into the formula:

Annual interest rate = ($275.03 / $19,732.65) * (12 / 9)=0.01858

The annual rate of interest is 0.01858.

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