Hello, this question is very confusing, could you help me figure out how to solve it?

Answer:

Step-by-step explanation

Left at 6:15 am

How many hours until 2:15pm? 8 hours

How many minutes from 2:15 until 2:30? 15

So it took 8 hours and 15 minutes

Answer:

12.8

Step-by-step explanation:

they can dig at a rate of 1.25

The approximate volume of the sphere is 6.01 ft³.

A sphere is simply a three-dimensional geometric object that is perfectly symmetrical in all directions.

The volume of a sphere is expressed as:

Volume =  (4/3)πr³

Where r is the radius of the sphere and π is the mathematical constant pi (approximately equal to 3.14).

Given that the surface area of the sphere is 16 square feet.

First, we determine the radius r:

Surface area = 4πr²

Hence

16 = 4πr²

Dividing both sides by 4π, we get:

r² = 16/4πr

r = √( 16/4πr )

r = 1.128 ft

Plugging in the value of r that we just found, we get:

Volume =  (4/3)πr³

Volume =  (4/3) × 3.14 × (1.128 ft)³

Volume =  6.01 ft³

Therefore, teh volume is 6.01 ft³.

Learn about volume of hemisphere here: brainly.com/question/22886594

#SPJ1

78 sit ups in 2 minutes

so

= 78 : 2 sits in 1 minute = 39 sits up per minute

x 5 = 195 sit ups in 5 minutes

Answer:  39 situps per time

Step-by-step explanation:

The volume of the largest rectangular box in the first octant with three faces in the coordinate planes, and one vertex in the plane is V = xyz, where x, y, and z are the lengths of the sides of the rectangular box.

To find the largest volume, we need to maximize x, y, and z. Since we have three faces in the coordinate planes, one vertex will be at the origin (0, 0, 0). The other two vertices will lie on the coordinate axes.

Let's assume the vertex on the x-axis is (x, 0, 0), and the vertex on the y-axis is (0, y, 0). The third vertex on the z-axis will be (0, 0, z). Since the box is in the first octant, all the coordinates must be positive.

To maximize the volume, we need to find the maximum values for x, y, and z within the constraints. The maximum values occur when the box touches the coordinate planes. Therefore, the maximum values are x = y = z.

Substituting these values into the volume formula, we get V = xyz = x³. Therefore, the volume of the largest rectangular box is V = x³.

Learn more about constraints here

brainly.com/question/32387329

#SPJ11

What is the maximum volume of a rectangular box situated in the first octant, with three of its faces lying on the coordinate planes, and one of its vertices located in the plane?

Answer:

x ≥ 3

Step-by-step explanation:

Two times a number = 2x

Plus one = + 1

At least 7 = ≥ 7

Algebraic Equation: 2x + 1 ≥ 7

2x + 1 ≥ 7    \(\longmapsto\)  Subtract 1 from both sides

2x + 1 - 1  ≥ 7 - 1

2x ≥ 6      \(\longmapsto\)     Divide both sides by 2

2x ÷ 2 ≥ 6 ÷ 2

x ≥ 3

-Chetan k

Answer:

1: 6 5/6

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

The equation 2/3 - x + 1/6 = 6x - x has the same solution set as the equation x = 5/36.

To determine which equations have the same solution set as the given equation, let's simplify and rearrange the terms.

Starting with the given equation:

2/3 - x + 1/6 = 6x - x

We can simplify the left side by finding a common denominator for 2/3 and 1/6, which is 6:

(4/6) - x + (1/6) = 6x - x

Combining like terms on the left side gives us:

(5/6) - x = 6x - x

Further simplifying, we can combine the x terms on the right side:

(5/6) - x = 5x

To isolate the x term on one side, we can add x to both sides:

(5/6) = 6x

Next, we can divide both sides by 6 to solve for x:

5/36 = x

Therefore, the equation 2/3 - x + 1/6 = 6x - x has the same solution set as the equation x = 5/36. Any equation that simplifies and rearranges to x = 5/36 will also have the same solution set as the given equation.

Learn more about equation here:

https://brainly.com/question/27893282

#SPJ11

The line on the graph is a function

The given parameter is the graph

From the graph, we can see that the curve or the line is a quadratic function

As a general rule, all lines represented by a quadratic function are functions

This implies that the line is a function

It should be noted that:

Quadratic equations are second-order polynomial equations and they have the form y = ax^2 + bx + c or y = a(x - h)^2 + k

Read more about quadratic equations at

https://brainly.com/question/1214333

#SPJ1

Answer:

a) 81-6

b) 10.4

Step-by-step explanation:

a) assuming that the VAT is 20% of the 68 pounds,

you calculate 120% of 68 (convert percentage to decimal)

= 1,20 * 68 = 81.6 pounds

or

calculate 20% of 68 pounds and add the answer to 68 pounds:

(0.2 * 68) + 68 = 81.6 pounds

b) 20% of 52

first convert the percentage to decimals:

0.2 * 52 = 10.4 pounds

Answer:

oye me puedes ayudar a mi tarea

es del cuento el príncipe feliz

Answer:

60

Step-by-step explanation:

60+60+y=180 (angle sum property )

120+y=180

y=180-120

y=60

Answer:

4th option

Step-by-step explanation:

Remember the Quotient Rule:

\(\frac{x^{m} }{x^{n} } =x^{m-n}\)

6-2 = 4

So it is the last option

Answer:

2

Step-by-step explanation:

one cookie plus one cookie is two cookies

1. The probability of making a Type I error is 0.1118.

To calculate the probability of Type I error, we need to assume that the null hypothesis is true.

In this case, the null hypothesis is that the proportion of people visiting Grant Park is 0.44.

Therefore, we can use a binomial distribution with n = 15 and p = 0.44 to calculate the probability of observing a sample proportion outside of the acceptance region (6 to 9).

The probability of observing 0 to 5 people visiting the area is:

P(X ≤ 5) = Σ P(X = k), k=0 to 5

= binom.cdf(5, 15, 0.44)

= 0.0566

The probability of observing 10 to 15 people visiting the area is:

P(X ≥ 10) = Σ P(X = k), k=10 to 15

= 1 - binom.cdf(9, 15, 0.44)

= 0.0552

The probability of observing a sample proportion outside of the acceptance region is:

a = P(Type I Error) = P(X ≤ 5 or X ≥ 10)

= P(X ≤ 5) + P(X ≥ 10)

= 0.0566 + 0.0552

= 0.1118

Therefore, the probability of making a Type I error is 0.1118.

2.The probability of making a Type II error is 0.5144.

To calculate the probability of Type II error, we need to assume that the alternative hypothesis is true. In this case, the alternative hypothesis is that the proportion of people visiting Grant Park is 0.31.

Therefore, we can use a binomial distribution with n = 15 and p = 0.31 to calculate the probability of observing a sample proportion within the acceptance region (6 to 9).

The probability of observing 6 to 9 people visiting the area is:

P(6 ≤ X ≤ 9) = Σ P(X = k), k=6 to 9

= binom.cdf(9, 15, 0.31) - binom.cdf(5, 15, 0.31)

= 0.5144

The probability of observing a sample proportion within the acceptance region is:

B = P(Type II Error) = P(6 ≤ X ≤ 9)

= 0.5144

Therefore, the probability of making a Type II error is 0.5144.

3. The power of the test is 0.4856.

The power of the test is the probability of rejecting the null hypothesis when the alternative hypothesis is true. In this case, the alternative hypothesis is that the proportion of people visiting Grant Park is 0.31.

Therefore, we can use a binomial distribution with n = 15 and p = 0.31 to calculate the probability of observing a sample proportion outside of the acceptance region (6 to 9).

The probability of observing 0 to 5 people or 10 to 15 people visiting the area is:

P(X ≤ 5 or X ≥ 10) = P(X ≤ 5) + P(X ≥ 10)

= binom.cdf(5, 15, 0.31) + (1 - binom.cdf(9, 15, 0.31))

= 0.0201

The power of the test is:

Power = 1 - P(Type II Error)

= 1 - P(6 ≤ X ≤ 9)

= 1 - 0.5144

= 0.4856

Therefore, the power of the test is 0.4856.

To know more about binomial distribution refer here:

https://brainly.com/question/29163389?#

#SPJ11

A) Function is increasing on (-∞, -1) and (7/2, ∞), and decreasing on (-1, 7/2).

b)  The local minimum value of f is; 5608/2197 at x = -42/13, and the local maximum value of f is 139/8 at x = 7/2.

(a) To determine the intervals on which f is increasing or decreasing, we need to determine the critical points and then check the sign of the derivative on the intervals between them.

f(x)=8x³-42x-48x + 4

f'(x) = 24x² - 90

Setting f'(x) = 0, we get

24x² - 90 = 0

24x² = 90

x =±  √3.75

So, the critical points are;

x = -1 and x = 7/2.

We can test the sign of f'(x) on the intervals as; (-∞, -1), (-1, 7/2), and (7/2, ∞).

f'(-2) = 72 > 0, so f is increasing on (-∞, -1).

f'(-1/2) = -25 < 0, so f is decreasing on (-1, 7/2).

f'(4) = 72 > 0, so f is increasing on (7/2, ∞).

Therefore, f is increasing on (-∞, -1) and (7/2, ∞), and decreasing on (-1, 7/2).

(b) To determine the local maximum and minimum values of f, we need to look at the critical points and the endpoints of the interval (-1, 7/2).

f(-1) = -49

f(7/2) = 139/8

f(-42/13) = 5608/2197

Learn more about maximum value  here:

brainly.com/question/23504923

#SPJ4

Answer:

If students understand the basic proof on general laws of logarithm then it will be easie. ... loga (MN) = x + y = loga M + loga N [putting the values of x and y] ... a on both sides of the change of base rule formula [loga M = logb M × loga

Step-by-step explanation:

yall i think i got this wrong

even if it is to anyone who needs it just copy it lol

The statement is true as over the last 40 years, the percentage of Americans who identify as White has been decreasing steadily.

This trend can be attributed to several factors,

Changing Demographics,

The United States has experienced significant demographic shifts in recent decades.

There has been an increase in immigration from non-European countries, resulting in a more diverse population.

Birth rates among minority populations, such as Hispanic, Asian, and African American communities,

Have been higher compared to the White population.

Multiracial Identification,

With increased recognition and acceptance of multiracial identities,

More individuals are choosing to identify with multiple racial backgrounds rather than solely as White.

This shift in self-identification contributes to the decline in the percentage of Americans identifying as solely White.

Generational Changes,

Younger generations, such as millennials and Generation Z, are more racially and ethnically diverse compared to older generations.

As younger individuals enter adulthood and the workforce, they contribute to the overall demographic changes in the country.

learn more about percentage here

brainly.com/question/31780033

#SPJ4

The slope of the linear equation of the entire data set is -720.98

1. Bring data in to excel sheet

2.Select both x and y variable and insert scatter plot chart. Select any data point in the chart and add trend line. In the format trend line option choose "Linear" and also select "Display an equation on chart" & "Display R-squared value on chart"

To find: What is the slope of the linear equation of the entire data set? Round to nearest hundredth.

Regression equation : y = -720.98x + 15,90,277.32

Slope = -720.98 (Round to nearest hundredth.)

Intercept = 15,90,277.32

So, the slope of the linear equation of the entire data set is -720.98

Learn more about scatter plot :

brainly.com/question/29231735

#SPJ4

Answer:

i don't speak spanish bro sorry

The given formula for the sum of the first n terms of an arithmetic sequence is Sn = n^2 - 2n. To determine the first term and the common difference of the arithmetic sequence, we can analyze the given formula.

The sum of an arithmetic sequence is given by the formula Sn = (n/2)(2a + (n-1)d), where a is the first term, d is the common difference, and n is the number of terms.

Comparing the given formula Sn = n^2 - 2n with the formula Sn = (n/2)(2a + (n-1)d), we can see that n^2 - 2n is equivalent to (n/2)(2a + (n-1)d). By equating the corresponding terms, we have the following equations:

n = n/2 (for the first term)

-2 = 2a + (n-1)d

From the first equation, we find that n = 2. Substituting this value of n into the second equation, we have -2 = 2a + (2-1)d, which simplifies to -2 = 2a + d. Therefore, the first term of the arithmetic sequence is a = -1, and the common difference is d = -3.

Learn more about arithmetic sequence here: brainly.com/question/28882428
#SPJ11

Answer:

a) 1,14%

b) 317%

Step-by-step explanation

J = C . i . t

540 - 500 = 500 . i . 7

40 = 500 . 7 . i

i = 0,0114 = 1,14% within day

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

J = 500 . 0,0114 . 365 = 2085,71

2085,71 - 500 = 500 . i . 1

1585,71 = 500 . i

i = 3,17 = 317% annual

\(We \: \: \: \: know \\ mean \: \: = \frac{sum \: \: \: of \: \: \: the \: \: \: terms}{number \: \: \: of \: \: \: terms} \\ \)

\(Given \: \: \: here \: \: the \: \: \: mean \\ of \: \: \: 3y + 1 \: \: \: and \: \: \: 4y + 9 \: \: \: is \: \: \: 2y + 11.\)

\(Therefore \\ \frac{(3y + 1) + (4y + 9)}{2} = 2y + 11 \\ = > \frac{7y + 10}{2} = 2y + 11 \\ = > 7y + 10 = 2(2y + 11) \\ = > 7y + 10 = 4y + 22 \\ = > 7y - 4y = 22 - 10 \\ = > 3y = 12 \\ = > y = \frac{12}{3} \\ = > y = 4\)

\(Your \: \: \: answer \: \: \: is \: \: \: 4.\)

Answer:

1= 8

3= 12

5= 16

7= 20

9= 24

Step-by-step explanation:

1+3=4x2=8

3+3=6x2=12

5+3=8x2=16

9+3=12x2=24

ANSWER:1=8

3=12

5=16

7=20

9=24

step -by - step explanation: 1+3=4×2=8

3+3=6×2=12

5+3=8×2=16

9+3=12×2=24

We need to find the inverse of the function gof (x). First we need to find the composite function gof (x) which is given by:

\(g(f(x)) = g(3x - 6)\)

= \((1/3)(3x - 6) + 1\)

= x - 1 + 1

= x

Thus,

gof (x) = x.

Now we need to find the inverse of the function gof (x) to obtain

\((gof)^-1 (x).\)

We have gof (x) = x

which implies\((gof)^-1 (x)\)

= gof (x)^-1

= x^-1

= 1/x,

x ≠ 0

Therefore,

\((gof)^-1 (x) = 1/x\)

which is option (3) (x+1) since 1/x can be written as 1/(x+1-1), where (x+1-1) is the denominator of 1/x.

Hence, the correct option is (3).

To know more about two functions visit:

https://brainly.com/question/19517220

#SPJ11

To find (g(f))^-1 (x), substitute the expression for f(x) into g(x) and simplify. The composition of g(f) is x and its inverse is also x. Therefore, (g(f))^-1 (x) equals x.

To find (g(f))^-1 (x), we need to first find the composition of g(f) and then find its inverse. Start by substituting the expression for f(x) into g(x): g(f(x)) = g(3x-6) = \frac{1}{3}(3x-6) + 1 = x - 1 + 1 = x. So, g(f(x)) = x. Now, to find the inverse of g(f), we switch the x and y variables and solve for y: y = x. Therefore, (g(f))^-1 (x) = x.

https://brainly.com/question/33783470

#SPJ12

One strategy that may help Emilio write more fluently is practicing speed writing or shorthand techniques.

Practicing speed writing or shorthand techniques can help Emilio increase his writing speed without sacrificing legibility. Speed writing involves using abbreviations, symbols, and shortcuts to represent words or phrases, allowing for faster transcription of thoughts onto paper.

Shorthand systems, such as Gregg shorthand or Pitman shorthand, provide structured methods for condensing words and phrases into simplified symbols.

By learning and practicing speed writing or shorthand techniques, Emilio can improve his writing efficiency and reduce the time it takes to write a few sentences. This strategy allows him to maintain neatness while increasing his writing speed, enabling him to express his thoughts more fluently.

With regular practice and familiarity, Emilio will become more comfortable with the shorthand system and experience a significant improvement in his writing speed and fluency.

To know more about shorthand, refer here:
https://brainly.com/question/31301365
#SPJ11

f'(4) = 5/32. This means that at x = 4, the slope of the tangent line to the curve y = f(x) is 5/32.

To find f'(4), we first need to find the derivative of the given function f(x). We can use the quotient rule to do this:

f(x) = sqrt(x) + 3/sqrt(x)

\(f'(x) = (1/2)x^(-1/2) - 3/2x^(-3/2)\)

Now we can substitute x = 4 to find f'(4):

\(f'(4) = (1/2)4^(-1/2) - 3/24^(-3/2)\)

f'(4) = (1/2)(1/2) - 3/2(1/16)

f'(4) = 1/4 - 3/32

f'(4) = 5/32

Therefore, This also means that the rate of change of f(x) at x = 4 is 5/32, which is the instantaneous rate of change or the derivative of the function at that point.

To know more about tangent line refer to-

https://brainly.com/question/31326507

#SPJ11