Need help on this please

Answer:

The proportion of second lunch students who eat outside is more than that for the first lunch students.

Step-by-step explanation:

The complete question is:

Points Northlake High School has two lunch periods. Students can eat their lunch in the cafeteria or on an outside patio. About 35% of students who have first lunch eat outside. Compare this with the percentage of second-lunch students who eat outside.

                            Eat Outside         Eat Inside          Total

First Lunch                 0.19                    0.35               0.54

Second Lunch           0.22                   0.24               0.46

Total                           0.41                    0.59               1.00

Solution:

The conditional probability of an event B given that another event A has already occurred is:

\(P(B|A)=\frac{P(A\cap B)}{P(A)}\)

The probability of students who have second lunch (S) and eat outside (O) is:

P (S ∩ O) = 0.22

The probability of students who have second lunch (S) is:

P (S) = 0.41

Compute the proportion of student who eats outside given they have second lunch as follows:

\(P(O|S)=\frac{P(S\cap O)}{P(S)}\)

            \(=\frac{0.22}{0.41}\\\\=0.536583\\\\\approx 0.54\)

The proportion of second lunch students who eat outside is more than that for the first lunch students.

Answer:

down menus to choose steps in order to correctly solve

down menus to choose steps in order to correctly solve4k−6=−2k−16−2 for k.

Anw.

-2

ep.

4k - 6 = -2k - 16 -2

4k - 6 = -2k - 18

4k - 6 + 2k = -18

4k - 2k = -18 + 6

6k = -18 + 6

6k = -12

k = -2

Answer:

What are you looking at ᭙єɨᏒᗡꪮ

Explanation:

The most significant int It provided that at least three buWisconsin. A portion (about a third) of wo part of the territory.

hehehehehehe

we use exponents to show how many times does a number multiply by itself

then

is the multiplication between b's 3 times, then the expression using exponents is

Answer:

x = 1/10

Step-by-step explanation:

1/40 + x = 1/8

Subtract 1/40 from each side

1/40-1/40 + x = 1/8-1/40

x = 1/8 - 1/40

Get a common denominator

x = 1/8 *5/5 - 1/40

x = 5/40 - 1/40

x = 4/40

Simplify

x = 1/10

Answer:

Sydney, Nova Scotia

Step-by-step explanation:

Out of all 3 Sydney, Nova Scotia would be the coldest because -23 degrees is lower than -21 and -22. When using a thermometer the lower it is the colder, so Nova Scotia would be your answer.

Answer:

Charlottetown, Prince Edward Island, is the warmest. Sydney, Nova Scotia is the coldest. The larger the negative number the more cold it is while the lower the negative number, it becomes warmer.

Step-by-step explanation:

The maximum area of a Norman window with a perimeter of 9 feet is 81π/4 square feet.

To find the maximum area of a Norman window with a given perimeter, we can use calculus. Let's denote the radius of the semicircle as r and the height of the rectangular window as h.The perimeter of the Norman window consists of the circumference of the semicircle and the sum of all four sides of the rectangular window. Therefore, we have the equation:

πr + 2h = 9We also know that the area of the Norman window is the sum of the area of the semicircle and the area of the rectangle, given by:

A = (πr^2)/2 + rh

To find the maximum area, we need to express the area function A in terms of a single variable. We can do this by substituting r from the perimeter equation:

r = (9 - 2h)/(π)

Now we can rewrite the area function in terms of h only:

A = (π/2) * ((9 - 2h)/(π))^2 + h * (9 - 2h)/(π)

Simplifying this equation, we get:

A = (1/2)(9h - h^2/π)

To find the maximum area, we differentiate the area function with respect to h, set it equal to zero, and solve for h:

dA/dh = 9/2 - h/π = 0

Solving this equation, we find:h = 9π/2

Substituting this value of h back into the area function, we get:

A = (1/2)(9 * 9π/2 - (9π/2)^2/π) = (81π/2 - 81π/4) = 81π/4

Therefore, the maximum area of a Norman window with a perimeter of 9 feet is 81π/4 square feet.

Learn more about area here:

https://brainly.com/question/2607596

#SPJ8

Answer:

y=35/11

or

3.18 repeating

Step-by-step explanation:

Answer: 3.18181818182y

Step-by-step explanation:

You would do 11y divided by 11. Then 35 divided by 11.

That would get you 3.18181818182=y

Based on the coldest temperature in Buffalo and the difference in the temperature of Chicago, the equation that can be used to find the coldest temperature in Chicago is C. C - 12 = -39; -27°

When temperatures are warmer, it means that they are higher. This means that to find the coldest temperature in Chicago, you need to add 12°F to the temperature of Buffalo.

The formula would therefore be:

C = -39 + 12

Making the Buffalo temperature the subject gives;

C - 12 = -39

The coldest temperature in Chicago is:

= -39 + 12

= -27°F

Find out more on temperatures at https://brainly.com/question/2489614

#SPJ1

Answer:

-7x^3+39x^2+136x

Step-by-step explanation:

= x(x-8) (-7x - 17)

( x - 8 ) ( -7 x - 17) : -7x^2 + 39x+136

= x( -7x^2 + 39x + 136)

= x( -7x^2) + x * 39x * 136

= -7x^3 + 39x^2 + 136x

As per compound interest, the account balance at the end of 12 years is approximately $17,217.

Compound interest is an important concept in finance and investing, and it plays a critical role in understanding how your money can grow over time. When you invest money, your initial investment earns interest, and over time, that interest can also earn interest, resulting in exponential growth.

In the context of this question, the investment into a college fund is represented by the equation

=> \(A = 12,000e^{0.023*12}\)

where A is the amount of money in the account at the end of the time given. Let's break down the different components of this equation and see how they relate to compound interest.

First, we have the initial investment, which is not explicitly given in the equation, but we can infer that it is 12,000. This is the amount of money that is initially invested into the college fund.

Next, we have the interest rate, which is 0.023.

Finally, we have the amount of time that the money is invested, which is 12 years in this case. The longer the money is invested, the more time there is for compound interest to work its magic and grow the account balance.

Putting all of these components together, we can use the equation

=> \(A = 12,000e^{0.023*12}\)

to calculate the amount of money in the college fund at the end of 12 years.

By plugging in the values for the initial investment, interest rate, and time, we can see that the account balance at the end of 12 years is approximately $17,217.

This represents the power of compound interest and how it can turn a modest initial investment into a substantial sum over time.

To know more about compound interest here.

https://brainly.com/question/29335425

#SPJ4

The value of angle RPQ in the circle is 115 degrees.

Using angles of intersecting chord theorem, If two chords intersect inside a circle, then the measure of the angle formed is one half the sum of the measure of the arcs intercepted by the angle and its vertical angle.

Therefore,

∠RPQ = 1  / 2 (arc angle RQ + arc angle SA)

arc angle RQ = 175 degrees

arc angle SA = 55 degrees

Hence,

∠RPQ  = 1 / 2 (175 + 55)

∠RPQ  = 1 / 2 (230)

∠RPQ  = 115 degrees.

learn more on circle theorem here: https://brainly.com/question/24509783

#SPJ1

Answer: 115 degrees

Step-by-step explanation:∠

RPQ  = 1 / 2 (175 + 55)

∠RPQ  = 1 / 2 (230)

∠RPQ  = 115 degrees.

Answer:

14

Step-by-step explanation:

x/21=12/18

18x=252

14

Answer:

Area of Parallelogram Using Diagonals ; Using Base and Height, A = b × h ; Using Trigonometry, A = ab sin (x) ; Using Diagonals, A = ½ × d1 × d2 .....

Using Diagonals: A = ½ × d1 × d2 sin (y)

Using Base and Height: A = b × h

Using Trigonometry: A = ab sin (x)

Answer:

A.

Step-by-step explanation:

The angles are not always congruent as the only way for them to all be congruent is if it were to be a square, and not all parallelograms are squares.

The question is given by:

The solution is given by:

Now this value is possible only if

So the answer is option D

To solve the expression 1 - (1 + 0.04/12)^(-12x10), you can follow these steps: Step 1: Simplify the exponent. In this case, -12x10 simplifies to -120.

Step 2: Evaluate the term within the parentheses first. 0.04/12 simplifies to 0.0033333 (approximately).

Step 3: Add 1 to 0.0033333 to get 1.0033333.

Step 4: Raise 1.0033333 to the power of -120.

Step 5: Calculate the value inside the parentheses using a calculator or software. The result is approximately 0.742657.

Step 6: Subtract the value obtained in Step 5 from 1.

1 - 0.742657 = 0.257343 (approximately).

Hence, the value of the expression 1 - (1 + 0.04/12)^(-12x10) is approximately 0.257343.

It's important to follow the order of operations (PEMDAS/BODMAS) when solving mathematical expressions. In this case, the exponent is evaluated first, followed by addition and subtraction. Utilizing a calculator or software that supports exponentiation and parentheses can help simplify complex expressions and obtain accurate results efficiently.

For more such questions on exponent.

https://brainly.com/question/13669161

#SPJ8

The missing value for the quadratic function is given as follows:

y = -3.

As a function of it's roots x* and x**, the quadratic function is defined as follows:

y = a(x - x*)(x - x**)

In which a is the leading coefficient.

The roots of the function are the values of x when y = 0, hence:

x* = -4, x** = -2.

Thus:

y = a(x + 4)(x + 2)

y = a(x² + 6x + 8).

When x = 0, y = -8, hence the leading coefficient a of the function is given as follows:

8a = -8

a = -1.

Hence:

y = -x² - 6x - 8;

The missing value is the value of y when x = -1, hence:

y = -(-1)² - 6(-1) - 8

y = -3.

More can be learned about quadratic functions at https://brainly.com/question/1214333

#SPJ1

The temperature at 11 pm is 5 degrees

Here, we want to find the temperature at 11 pm

The temperature rose by 16 degrees from -11 degrees . By rising, we mean an increase in the positive direction

Mathematically, that would be;

-11 + 16 = 5 degrees

Answer:

The answer is -40

Step-by-step explanation:

Answer:  19x - 216/6

Explanation: Hope this helps!

The area of the trapezoid is equal to 45 square units.

Herein we find the area of a part of given curve, representing a trapezoid, that must be determined by means of the following formula:

A = 0.5 · h · (B + b)

Where:

If we know that B = 20, b = 10, h = 3, then the area of the trapezoid is:

A = 0.5 · (20 + 10) · 3

A = 0.5 · 30 · 3

A = 15 · 3

A = 45

To learn more on areas of trapezoids: https://brainly.com/question/12451654

#SPJ1

The solution for the given inequalities are as follows

(17)k≥1     ,(18)c > 14      ,(20)y ≥ 2      ,(21)z < 9     ,(23)x < 1    ,(24)v ≤ -1  .

In the question ,

it is given that

(17) the inequality

3(k-5)+9k≥-3

3k-15+9k ≥ -3

12k -15 ≥ -3

12k ≥ 15-3

12k ≥ 12

k≥1

(18) the inequality

-(7c-18)-2c > 0

-7c+126-2c>0

-9c+126>0

-9c > -126

c > 126/9

c > 14

(20)given the inequality

-4 ≤ 4(6y-12)-2y

-4 ≤ 24y - 48 -2y

-4 ≤ 22y - 48

48-4 ≤ 22y

44/22 ≤ y

y ≥ 2

(21) given the inequality

30 > -(5z+15)+10z

30 > -5z -15 +10z

30 > 5z-15

45 > 5z

45/5 > z

z < 9

(23) given the inequality

4x+3 < 3x+6

4x-3x < 6-3

3x < 3

x < 1

(24) given the inequality

4v+8 ≥ 6v+10

-10+8 ≥ 6v-4v

-2 ≥ 2v

-2/2 ≥ v

-1 ≥ v

v ≤ -1

Therefore , the solution for the given inequalities are (17)k≥1     ,(18)c > 14      ,(20)y ≥ 2      ,(21)z < 9     ,(23)x < 1    ,(24)v ≤ -1  .

Learn more about Inequality here

https://brainly.com/question/17135872

#SPJ1

Answer: 8

Step-by-step explanation:

A really simple way to solve these problems is to think of g(whatever number) as the y coordinate on your graph. Therefore the question is basically asking you if x is 10, what is y. If we find 10 on the x axis, we can count up the y axis until we reach the line. So, the answer is 8

Yes you found it correct as per slope intercect form y=mx+b

Here

Slope=m=1/2

Y intercect=5

Now.

for g(10)

The coordinate is (10,8)

So

g(10)=8

Two-variable linear equations have a line as their graph, which is why they are referred to as linear equations. Plotting (x1,y1) and (x2,y2), then creating a line that connects the two.

\($\frac{d}{d x}\left(-(x-2)^2+1\right)$\)

Domain of \($-(x-2)^2+1:\left[\begin{array}{cc}\text { Solution: } & -\infty < x < \infty \\ \text { Interval Notation: } & (-\infty, \infty)\end{array}\right]$\)

Range of \($-(x-2)^2+1:\left[\begin{array}{cc}\text { Solution: } & f(x) \leq 1 \\ \text { Interval Notation: } & (-\infty, 1]\end{array}\right]$\)

Interception zones on the axis \($-(x-2)^2+1: \quad X$\) Intercepts: \($(3,0),(1,0), Y$\)Intercepts: (0,-3) .

Vertex of \($-(x-2)^2+1: \quad$\) Maximum (2,1) .

The graph of the equation y=2x+1 shows a straight line, or it is a linear equation. When the value of x rises, eventually the value of y rises by twice the rise in x plus one. With a ruler and the specified amount as the starting point, draw a vertical line. From the line across to the -axis, create a horizontal line using a ruler. Look at the value on the -axis.

There are three fundamental ways to graph linear functions. The initial method involves charting points and then tracing a line through them. The second is by using the slope and y-intercept. The identity function f(x)=x is transformed as the third method.

To learn more about graph refer to :

https://brainly.com/question/19040584

#SPJ1

The pattern for the sequence 1.3, 8.3, 27.3, 64.3,… is f(n) = (n)³.3

The pattern in the question is given as

1.3, 8.3, 27.3, 64.3,…

In the above expressions and pattern, we can see that

From the above, we have the following

Current term = (n)³.3

Note that the decimal does not represent product

And also the pattern is a geometric sequence

Hence, the pattern for the sequence is f(n) = (n)³.3

Read more about sequence at

brainly.com/question/6561461

#SPJ1

The length of the guy wire to the nearest foot would be = 10 ft.

The relationship between the tower, guy wire and pole forms the shape of a right angle triangle.

The distance from the stake to the pole (opposite) =a = 5 ft

The distance from the pole to the tower (adjacent) =b= 9ft

The length of the guy wire= c = X

Using the Pythagorean formula:

c² = a² + b²

c² = 5² + 9²

c² = 25+81

c² = 106

C = √106

C= 10 ft ( to the nearest foot)

Learn more about triangle here:

https://brainly.com/question/28470545

#SPJ1

Complete question:

A guy wire runs from the top of a cell tower to a metal stake in the ground. Sophie places a 7 ft tall pole to support the guy wire. After placing the pole, Sophie measures the distance from the stake to the pole to be 5 ft. She then measures the distance from the pole to the tower to be 9 ft. Find the length of the guy wire, to the nearest foot.