What is 18 divided by 10?

First, let us break down 28 hours 36 minutes into minutes.

Number of minutes taken to grade 220 essays = (28 x 60) + 36 = 1680 + 36 = 1716 minutes

Now, we can find the average time taken to grade an essay by dividing the time taken to grade 220 essays by 220.

Average amount of time taken to grade an essay = [tex]\frac{1716}{220}[/tex] = 7.8 minutes, or 7 minutes and 48 seconds

Answer:

Yes

Step-by-step explanation:

the given function is exponential, because x is the exponent of 3

Answer: 68 questions

Step-by-step explanation:

Given Data:

Exam questions = 75

Percentage needed by Mary for the quarter = 90%

therefore:

Total number of questions she needs to answer to get an A

= exam questions x percentage needed /100

= 75 * 90 / 100

= 6570 / 100

= 67.5

Approximately Mary needs to answer 68 questions correctly to score an A for the quarter

Answer:

3

Step-by-step explanation:

If 4 less than 3 times a certain number is 2 more than the number

Let the number be x

First, three times of number is 3x

Then 4 less will be (3x - 4)

Two more than number is (x + 2)

Hence the algebraic equation will be

3x - 4 = x + 2

Now solving this equation

3x - 4 = x + 2

3x - x = 2 + 4

2x = 6

x = 6 / 2

x = 3

Thus the number is 3

Answer:

q= 6

Step-by-step explanation

Answer:

6

Step-by-step explanation:

6+7q =48

7q= 48-6

7q= 42

q=42/7

q= 6

Answer: 60 hours

(I'll help you with the first one only because you need to learn this)

Step-by-step explanation: 36 divided by 3 is 12 and 720 divided by 12 is 60

Answer:

Archie:  x+20

Betty: 2x-5

Step-by-step explanation:

We are given that The number of cupcakes that  Archie sold can be given as 20 more than a number, x.

So, 20 more than  x = x+20

So, Archie sold cupcakes = x+20

We are also given that Betty  sold five fewer cupcakes than twice a number, x.

So,twice a number, x = 2x

Five fewer cupcakes than twice a number, x. =2x-5

So, Betty sold cupcakes = 2x-5

Hence an algebraic expression that can be used to represent the amount of cupcakes that each senior sold

Archie:  x+20

Betty: 2x-5

Answer:

nah bro thats demarcus

Step-by-step explanation:

Answer:

$0.27

Step-by-step explanation:

Multiply the cost of one button times the number of button desired

3 * .09 = .27

Answer:

.27

Step-by-step explanation:

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Answer:

the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up. Example: 38 rounded to the nearest ten is 40. ...

If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down. Example: 33 rounded to the nearest ten is 30.

Step-by-step explanation:

Answer: 2042.9

Step-by-step explanation: Round to the nearest tenths place or the (1 decimal place)

If the number is higher than 5, 6, 7, 8, or 9, round the number up. If not, then do not round it up.

I hope this helps!

Given that the weight of oranges falls in a normal distribution, the empirical rule states that about 68% of oranges should weigh between 3 oz. and 7 oz., which are one standard deviation away from the mean of 5 oz.

The question involves the concept of the empirical rule in statistics. The empirical rule states that for a normal distribution, approximately 68% of data falls within one standard deviation of the mean, 95% falls within two standard deviations, and 99.7% falls within three standard deviations.

In this scenario, the mean weight of the oranges is 5 oz. and the standard deviation is 1 oz. So, oranges that weigh between 3 oz. and 7 oz. fall within 1 standard deviation on either side of the mean. According to the empirical rule, this represents approximately 68% of the data. So, we can conclude that about 68% of the oranges in the orchard weigh between 3 oz. and 7 oz.

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Answer:

1 and 2

Step-by-step explanation:

Answer:

The lateral area of the cylinder is 678 cm^2 to the nearest whole number

Step-by-step explanation:

Mathematically , the lateral area of a cylinder can be calculated using the formula

A = 2 π r h

where r is the radius = 9cm and h is the height = 12 cm

we are told to use a value of 3.14 for π

Thus the lateral area A is thus = 2 * 3.14 * 9 * 12 = 678.24 which is 678 cm^2 to the nearest whole number

Answer:

6a - 18

Step-by-step explanation:

[tex]6(a - 3) \\ = 6 \times a - 6 \times 3 \\ = 6a - 18[/tex]

Answer:

The answer is B. 6(a)-6(3)

Step-by-step explanation:

I took quiz and got 100%

Answer:

2291.1

Step-by-step explanation:

Answer:

  2290 mm²  or  2289.94 mm²

Step-by-step explanation:

The radius of the outer circle is the sum of the inner radius and the width of the shaded area: 12.6 mm +17.2 mm = 29.8 mm.

The shaded area is the difference between the area of the outer circle and the area of the inner circle. The area of either circle is given by the formula ...

  A = πr²

so, the area of the ring is ...

  A = π(29.8 mm)² -π(12.6 mm)² = π(888.04 mm² -158.76 mm²)

  A = 3.14(729.28 mm²) = 2289.9392 mm²

The area is about 2289.94 mm², which rounds to 2290 mm².

_____

Comment on pi

In the calculation here, we have used the required value of pi. If we use one that is more accurate, we find the area to be about 2291.10 mm².

We have been given that Ming throws a stone off a bridge into a river below.

The stone's height (in meters above the water), x seconds after Ming threw it, is modeled by [tex]h(x)=-5(x-1)^2+45[/tex].

We are asked to find the maximum that the stone will reach.

We can see that our given equation is in vertex form of parabola [tex]y=a(x-h)^2+k[/tex] with vertex at point (h,k).

We can also see that leading coefficient is negative, so our given parabola is a downward opening parabola and its maximum value be at vertex.

The maximum height will be equal to y-coordinate of vertex.

We can see that vertex of our given parabola is at point (1,45). Therefore, the maximum height will be 45 meters.

The stone that Ming throws off the bridge reaches a maximum height of 45 meters. This is determined by the model equation for the stone's height as a function of time, which is a quadratic or parabolic function, with 45 as the maximum value.

The question specifically concerns a parabolic formula representing the height of the stone thrown off the bridge over time: h(x) = -5(x-1)^2 + 45. This is a standard form of a parabolic or quadratic function, which is used to model the trajectory of an object under the force of gravity. In this form, the 45 at the end of the equation represents the maximum height, in meters, that the stone will reach. Hence, the maximum height that the stone will reach is 45 meters.

The reason is that the graph of the equation is an upside-down parabola, which means it opens downward. Thus, its maximum point, or vertex, is the top point of the graph, which corresponds to the height of the stone when it is at its peak. The equation is shifted such that this maximum point is (x, h(x)) = (1, 45).

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The correct option is C.

The commutative property is a math rule that says that the order in which we multiply numbers does not change the product.

The commutative property deals with the arithmetic operations of addition and multiplication. It means that changing the order or position of two numbers while adding or multiplying them does not change the end result. For example, 4 + 5 gives 9, and 5 + 4 also gives 9.

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Answer:

625

Step-by-step explanation:

Simplify the following:

7^2 + 24^2

7^2 = 49:

49 + 24^2

| 2 | 4

× | 2 | 4

| 9 | 6

4 | 8 | 0

5 | 7 | 6:

49 + 576

| 1 | 1 |  

| 5 | 7 | 6

+ | | 4 | 9

| 6 | 2 | 5:

Answer:  625

Answer:

it would be 625

Step-by-step explanation:

7 squared is 49 and 24 squared is 576. so if you do 49+576=625

Answer:

D) y= 3.75x

Step-by-step explanation:

The total cost is y, therefore you set the equation equal to y since you want to find the total cost of candy he purchased.

X is the number of pounds, and the candy is $3.75 each pound.

When you set up the equation, it is

y=3.75x

Which also means: the total cost of the candy depends on how many pounds (which is $3.75 per pound) he buys.

Answer:

58806

Step-by-step explanation:

multiply them together

Answer:

A total of 720 elk are likely to be infected

Step-by-step explanation:

we shall be using the proportion by survey to estimate the number of infections

From the survey 8 out of 50 are infected. Thus the likelihood of infection is 8/50

We have 4,500 elk to consider. The number of elk likely to be infected will be 8/50 * 4500 = 720

Based on the sample proportion, it is estimated that approximately 880 elk out of the 5,500 elk in the wildlife preserve are infected with the parasite.

Step 1

To estimate the number of elk likely to be infected with a parasite at a wildlife preserve, we use the sample proportion to project the infection rate to the entire population.

Given:

- Total population of elk [tex]\( N = 5500 \)[/tex]

- Sample size [tex]\( n = 50 \)[/tex]

- Number of infected elk in the sample [tex]\( x = 8 \)[/tex]

First, we calculate the sample proportion [tex]\( \hat{p} \)[/tex]:

[tex]\[ \hat{p} = \frac{x}{n} = \frac{8}{50} = 0.16 \][/tex]

This sample proportion represents the estimated infection rate. To estimate the number of infected elk in the entire population, we multiply this proportion by the total population:

[tex]\[ \text{Estimated number of infected elk} = \hat{p} \times N \][/tex]

Step 2

Substituting the values:

[tex]\[ \text{Estimated number of infected elk} = 0.16 \times 5500 \][/tex]

Performing the calculation:

[tex]\[ \text{Estimated number of infected elk} = 0.16 \times 5500 = 880 \][/tex]

So, approximately 880 elk in the wildlife preserve are likely to be infected with the parasite.

Complete question : Part of the population of 5,500 elk at a wildlife preserve is infected with a parasite. A random sample of 50 elk shows that 8 of them are infected.

How many elk are likely to be infected?

We have been given diagram of a triangle. We are asked to write an expression that represents the distance between Seattle and San Francisco.

We will use law of cosines to solve our given problem.

[tex]c^2=a^2+b^2-2ab\text{cos}(C)[/tex], where a, b and c are sides corresponding to angle A, B and C.

Let the distance between Seattle and San Francisco be 'c' and [tex]C=21.4[/tex].

Using law of sines, we can set an equation as:

[tex]c^2=1737^2+1858^2-2(1737)(1858)\text{cos}(21.4)[/tex]

Upon taking square root in both sides, we will get:

[tex]c=\sqrt{1737^2+1858^2-2(1737)(1858)\text{cos}(21.4)}[/tex]

Therefore, we can use the expression [tex]\sqrt{1737^2+1858^2-2(1737)(1858)\text{cos}(21.4)}[/tex] can be used to find distance between Seattle, WA, and San Francisco, CA.

Answer:

a

Step-by-step explanation:

Answer:

Step-by-step explanation:

slant height l = 14cm

r = 6 cm

Use Pythagorean theorem.

h² + 6² = 14²

h² + 36 = 196

h² = 196 - 36

h² = 160

h = √160

h = 12.65 cm

[tex]Volume=\frac{1}{3}\pi r^{2}h\\\\=\frac{1}{3}*3.14*6*6*12.64\\\\[/tex]

= 476.61 cubic cm

Answer:

The volume of cone is 476.61 cm³.

Step-by-step explanation:

Solution :

As per given question we have provided :

[tex]\begin{gathered}\end{gathered}[/tex]

Firstly, finding the height of cone by substituting the values in the formula :

[tex]{\longrightarrow{\pmb{\sf{l = \sqrt{(r)^{2} + {(h)}^{2} }}}}}[/tex]

Substituting all the given values in the formula to find the height of cone :

[tex]\begin{gathered}\begin{array}{l}\quad{\longrightarrow{\sf{l = \sqrt{(r)^{2} + {(h)}^{2}}}}}\\\\\quad{\longrightarrow{\sf{{(l)}^{2} =(r)^{2} + {(h)}^{2}}}}\\\\\quad{\longrightarrow{\sf{{(14)}^{2} =(6)^{2} + {(h)}^{2}}}}\\\\\quad{\longrightarrow{\sf{{(14 \times 14)} =(6 \times 6) + {(h)}^{2}}}}\\\\\quad{\longrightarrow{\sf{{(196)} =(36) + {(h)}^{2}}}}\\\\\quad{\longrightarrow{\sf{ {(h)}^{2} = 196 - 36}}}\\\\\quad{\longrightarrow{\sf{ {(h)}^{2} = 160}}}\\\\\quad{\longrightarrow{\sf{h = \sqrt{160}}}}\\\\\quad{\longrightarrow{\sf{h = 12.65}}}\\\\\quad{\star{\underline{\boxed{\sf{\purple{h = 12.65}}}}}} \end{array}\end{gathered}[/tex]

Hence, the height of cone is 12.65 cm.

[tex]\begin{gathered}\end{gathered}[/tex]

Now, finding the volume of cone by substituting the values in the formula :

[tex]\longrightarrow{\pmb{\sf{V_{(Cone)} = \dfrac{1}{3}\pi{r}^{2}h}}}[/tex]

Substituting all the given values in the formula to find the volume of cone :

[tex]\begin{gathered}\begin{array}{l}\quad\longrightarrow{\sf{Volume_{(Cone)} = \dfrac{1}{3}\pi{r}^{2}h}}\\\\\quad\longrightarrow{\sf{Volume_{(Cone)} = \dfrac{1}{3} \times 3.14{(6)}^{2} 12.65}}\\\\\quad\longrightarrow{\sf{Volume_{(Cone)} = \dfrac{1}{3} \times 3.14{(6 \times 6)}12.65}}\\\\\quad\longrightarrow{\sf{Volume_{(Cone)} = \dfrac{1}{3} \times 3.14{(36)}12.65}}\\\\\quad\longrightarrow{\sf{Volume_{(Cone)} = \dfrac{1}{\cancel{3}}\times 3.14 \times \cancel{36}\times 12.65}}\\\\\quad\longrightarrow{\sf{Volume_{(Cone)} = 3.14 \times 12 \times 12.65}}\\ \\\quad\longrightarrow{\sf{Volume_{(Cone)} = 476.61 \: {cm}^{3}}}\\\\\quad\star{\underline{\boxed{\sf{\pink{Volume_{(Cone)} = 476.61 \: {cm}^{3}}}}}}\end{array}\end{gathered}[/tex]

Hence, the volume of cone is 476.61 cm³.

[tex]\rule{300}{2.5}[/tex]

The population of bacteria triples every day is the situation can be modeled by a linear function. Option 1 is correct.

A function is a statement, rule, or law that specifies the connection between two variables. Functions are common in mathematics and are required for the formulation of physical connections.

A linear function may be used to describe the circumstance in which the number of bacteria triples every day.

Hence,option 1 is correct.

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Final answer:

The situation that can be modeled by a linear function is (3) An amusement park allowing 50 people to enter every 30 minutes.

It represents a scenario with a constant rate of change, suitable for a linear model such as y = 50x.

Explanation:

The situation that can be modeled by a linear function is (3) An amusement park allows 50 people to enter every 30 minutes. This scenario represents a situation where there is a constant rate of change, which aligns with the characteristic of a linear function. In this context, the independent variable represents the time in 30-minute intervals, and the dependent variable represents the number of people allowed to enter. The equation to model this situation could be y = 50x, where y is the total number of people and x is the number of 30-minute intervals that have passed.

Scenarios (1), (2), and (4) represent non-linear relationships. Specifically, (1) involves exponential growth as the bacteria population triples each day, which is a multiplicative rate of change rather than a constant additive rate. (2) Involves exponential decay as the value of a cell phone decreases at a percentage rate annually, and (4) involves exponential decay in the number of teams as the number is halved after each round.

m∠LNM = 54°

Here is why:

In this photo there are two important angles with very important features, a central angle and an inscribed angle.

A central angle is an angle that is in the center of the circle, so angle P is a central angle. The arc that is associated with this angle is going to be the same measure as the central angle. I have labeled this in the photo below as blue.

An inscribed angle is an angle that lies on the circle, so angle N is an inscribed angle. The arc that is associated with this angle will be double the amount of the inscribed angle, or the angle is half of the measure of the arc. I have labeled this in the photo below as red.

Since we know that the central angle is 108°, with what we know about central angles we know that arc LM is going to be 108° as well.

We also know that an inscribed angle is half the amount of the arc so...

108 ÷ 2 = 54

m∠LNM = 54°

The measure of the angle ∠LNM will be 54°.

It is the close curve of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.

The central angle is double the angle at the periphery that was subtended by the same chords. Then the equation is given as,

∠LNM = 1/2 ∠LPM

∠LNM = 1/2 x 108°

∠LNM = 54°

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Answer:

$15,267

Step-by-step explanation:

Kay earns $78,400 per year and gets a standard deduction of $5,700.

Her taxable income is amount of money that she can pay tax on and that is:

Income - Standard Deduction

= $78,400 - $5,700 = $72,700

She pays tax at a 21% rate, hence, her income tax is:

[tex]\frac{21}{100} * 72,700[/tex]

= $15,267

Her income tax is $15,267.

Answer:

1. A TUNNEL WITH LEAKS

2. A BIG ELECTRIC BILL

Step-by-step explanation:

H = 60

A = 20

W = 7

S = 26

E = 62

U = 22

B = 100

G = 8

R = 5

T = 0

K = 24

N = 81

C = 90

I = 32

L = 1

There you have it.....

The initial question lacks the specificity needed for a detailed and accurate response. More information on the subject and grade level is required to provide relevant help.

Unfortunately, your question isn't clear enough for me to provide a concise and accurate answer. To ensure you get the help you need, please restate your question with more details, specifying the subject and grade level you're referring to. Once I have this information, I can offer you a more structured and detailed response that caters to your academic needs. Also remember, it's vital to review your questions for grammatical errors and make sure they're clear before posting, to ensure you receive the best possible responses.

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There are 35 nickels and 25 dimes in the piggy bank.

The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.

Let N be the number of nickels in the piggy bank, and let D be the number of dimes. We can set up the following system of equations to represent the given information:

N + D = 60

0.05N + 0.1D = 4.25

The first equation represents the total number of coins in the piggy bank, and the second equation represents the total value of the coins.

To solve this system of equations, we can use the substitution method. First, we solve the first equation for N:

N = 35

Substituting this equation for N into the second equation, we get:

D = 25

Thus, 35 nickels and 25 dimes are in the piggy bank.

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Answer:

24-8 = 16 if u divide 16 by 4 u get 4 in each row

Step-by-step explanation:

Answer:

6 in.

Step-by-step explanation:

[tex]A = r^2\pi[/tex]

[tex]R = \sqrt{\frac{A}{\pi } }[/tex]

[tex]R = \sqrt{\frac{113}{\pi } }[/tex]

[tex]R = \sqrt{36}[/tex]

[tex]R = 6[/tex]