Select the expression that represents the multiplicative inverse of -4. A. -(-4) B. C. 4 D. -4

40 minutes past 7:00 is the actual time when the chicken will get ready.

The tool used to measure and indicate time is a clock or timepiece. The clock, one of the earliest creations by humans, satisfies the need to measure time periods that are shorter than those represented by natural units like the day, lunar month, and year. Over thousands of years, several physical processes have been utilized by devices.

The following examples of clocks that are based on movement in nature could be regarded forerunners of the modern timepiece: Through the positioning of a shadow on a flat surface, a sundial displays the time.

The hourglass is a well-known illustration of the variety of duration timers available. The two possible oldest clocks used to measure time are sundials and water clocks.

In Europe, the earliest mechanical clocks that kept time with oscillating timekeepers such balance wheels were made possible around 1300 thanks to the development of the verge escapement, which was a significant advancement.

Given the current time is 10 minute past 7:00, i.e. 7:10

But the clock is 15 min faster the original time

Original time = 7:10 - 15 min

= 6:55

And given time for the chicken to get ready is 45 min

Adding 45 min

= 6:55 + 45 min

= 7:40

Thus, 40 minutes past 7:00 is the actual time when the chicken will get ready.

Learn more about clocks

brainly.com/question/24051741

#SPJ1

Answer:

40%

Step-by-step explanation:

You can plug in 100 as the price of the radio to see how much the price decreased.

20% off of 100 will make it $80.

Then, with the 25% discount, it will be worth $60.

So, $40 was taken off, and 40÷ 100 is 0.4, so the overall percentage reduction was 40%

Answer:

[A]

29, 27, 25, 23, 21.......

term #1 = 31-2 = 29

term #2 = 31-4 = 27

term #3 = 31-6 = 25

term #4 = 31-8 = 23

term #5 = 31-10 = 21

...

tern #n = 31-2nStep-by-step explanation:

[B]

The answer to this question is very simple 120.

You can even do it systematically.

Take a=114, d = a2 - a1 = 116 - 114 =2

So now you get, a1= 114, d = 2

Now you want the 4th term so,

a4 = a + (n-1)d

a4 = 114 + 3 (2)

a4 = 114 +6 = 120

(x^2 + 43x + 10) - (-10x^2 - 5x + 10) = 11x^2 + 48x

Given polynomial (x^2 + 43x + 10) and (-10x^2 - 5x + 10)

We have to subtract the given polynomials.

Consider  (x^2 + 43x + 10) and (-10x^2 - 5x + 10)

Subtract (1) - (2) , we have,

(x^2 + 43 + 10) - (-10x^2 - 5x + 10)

x^2 + 43x + 10 + 10x^2 - 5x + 10

x^2 + 10x^2 + 48x + 5x + 10 - 10

Add similar elements : 43x + 5x = 48x

= x^2 + 10x^2 + 48x + 10 - 10

Add similar elements : x^2 + 10x^2 =  11x^2

= 11x^2 + 48x + 10 - 10

Solving , we get,

= 11x^2 + 48x

Thus, (x^2 + 43 + 10) - (-10x^2 - 5x + 10) = 11x^2 + 48x

Answer:15,29,42

Step-by-step explanation: add

15+29 > 42

29+42>15

42+15> 29

if all the statements are not true then the numbers are not a triangle

Answer:

x=63

y=27

Step-by-step explanation:

to find x

180-117=63

to find y

90-63=27

please mark brainliest if correct

Answer:

x=63, y=27

Step-by-step explanation:

x is part of a line with 117, so you would do 180-117 to find x. Then you do 90-63 to find y, which is 27.

The statement is true.

The average length of time between successive events of a given size (or larger) is indeed referred to as the recurrence interval (RI).

To understand this concept better, let's break it down:

1. Recurrence Interval (RI): The recurrence interval is a measure used in statistics and probability to determine the average time between events of a specific size or larger.

It is commonly used in fields such as hydrology, seismology, and finance to analyze the frequency and magnitude of events.

2. Successive Events: In this context, successive events refer to events that occur one after the other, without any gaps in between.

For example, if we are studying earthquakes, successive events would be the occurrence of earthquakes of a certain magnitude within a specific area.

3. Given Size or Larger: The recurrence interval focuses on events of a given size or larger. This means that we are considering events that meet or exceed a particular threshold.

For instance, if we are analyzing rainfall patterns, we might be interested in the recurrence interval of rainfall events that exceed a certain amount, such as 1 inch or more.

To illustrate this concept, let's consider an example:

Suppose we are studying hurricanes in a coastal region. We want to determine the average length of time between Category 3 or higher hurricanes.

We collect data and find that, on average, there is a Category 3 or higher hurricane every 5 years.

In this case, the recurrence interval (RI) for Category 3 or higher hurricanes would be 5 years. This means that, on average, we can expect a Category 3 or higher hurricane to occur once every 5 years in that coastal region.

To summarize, the statement is true: the average length of time between successive events of a given size (or larger) is referred to as the recurrence interval (RI).

It helps us understand the frequency and timing of specific events in various fields of study.

To know more about Recurrence intervals refer here:

https://brainly.com/question/31802012

#SPJ11

Answer:

Step-by-step explanation:

let x =0 then it's 2   so 0.2(x+2) is a formula that works,

y = 0.2(X+2)

:)  these are not easy, btw

Answer:

1/10, 13%, 0.15, 16/100, 1/5

Step-by-step explanation:

Given the following question:

13%, 16/100, 1/5, 0.15, and 1/10

In order to find the answer to this question we can rewrite all the following fractions/percent into decimals and then compare.

\(\frac{16}{100} =16\div100=0.16\)
\(\frac{1}{5} =1\div5=0.2\)
\(\frac{1}{10} =1\div10=0.1\)
\(13=0.13\)

0.13, 0.16, 0.15, 0.2, and 0.1
0.1, 0.13, 0.15, 0.16, 0.2

1/10, 13%, 0.15, 16/100, 1/5

Hope this helps.

Answer:

There are 40 hens on the farm

Step-by-step explanation:

Here, we want to know the number of hens on the farm.

Let the number of cows be c and the number of hens be h

From the first statement in the question;

c + h = 72 •••••••••••••(i)

From the second statement ;

c - 3h = -88 •••••••••(ii)

We can then solve both equations simultaneously to get h;

That would be easier by subtracting equation ii from i

Thus, we have;

(c-c) + h-(-3h) = 72-(-88)

4h = 160

h = 160/4

h = 40

There are 40 hens on the farm

Answer:

-17/12

Step-by-step explanation:

We have x+y

If x=1/3 and y=-7/4,

we can substitute them in and get:

1/3+(-7/4)

=1/3-7/4

=4/12-21/12

=-17/12

Answer:

1/3 + -7/4 =

4/12 + -21/12=

-17/12=

-1 5/12 this is what i got i dont know how the hail i got this 0_o

Step-by-step explanation:

Answer:

i think its a

Step-by-step explanation:

Answer:

I think its D

Step-by-step explanation:

Answer:

sides are of 16 in

Step-by-step explanation:

here's your solution

==> area of square = 256 in^2. [given]

==> side of square = 4x

==> area of square= side^2

==> 4x^2 = 256

==> 16x^2 = 256

==> x^2 = 256/16

==> x^2 = 16

==> x = √16

==> x = 4

==> x = 4

hence sides are of 16 in

Hope it helps

Using Stokes' theorem, we can evaluate the counterclockwise line integral of the vector field F = (yz, 2xz, exy) around the circle x^2 + y^2 = 25, z = 9 when viewed from above. The result of the line integral is 900πe.

Stokes' theorem relates the line integral of a vector field around a closed curve to the surface integral of the curl of the vector field over the surface bounded by that curve. In this case, we are given the vector field F = (yz, 2xz, exy) and the circle C defined by the equation x^2 + y^2 = 25, z = 9. The circle C lies in the xy-plane and is viewed counterclockwise from above.

To apply Stokes' theorem, we first need to calculate the curl of F. The curl of F is given by the determinant:

curl(F) = (∂/∂x, ∂/∂y, ∂/∂z) x (yz, 2xz, exy) = (0, -ex, -e + 2x).

Next, we find the surface S bounded by the circle C. Since C lies in the xy-plane, S is the portion of the plane z = 9 that is enclosed by the circle C. The normal vector n to S is (0, 0, -1) since the surface is oriented downward.

Now, we can calculate the surface integral of curl(F) over S. Since the curl of F is (0, -ex, -e + 2x) and the normal vector is (0, 0, -1), the surface integral simplifies to ∫∫S (0, -ex, -e + 2x) · (0, 0, -1) dA = ∫∫S (e - 2x) dA.

Since S is a circle of radius 5 centered at the origin, we can use polar coordinates to evaluate the surface integral. Let r be the radial distance and θ be the angle. The limits of integration are 0 ≤ r ≤ 5 and 0 ≤ θ ≤ 2π. The element of area dA in polar coordinates is r dr dθ.

Evaluating the surface integral, we have ∫∫S (e - 2x) dA = ∫0^5 ∫0^2π (e - 2r cosθ) r dθ dr.

Integrating with respect to θ first, we get ∫0^5 2πr(e - 2r) dr = 2π(e∫0^5 r dr - 2∫0^5 r^2 dr).

Evaluating the integrals, we have 2π(e(5^2/2) - 2(5^3/3)) = 2π(e(25/2) - (250/3)) = 900πe/6 - 500π = 900πe - 3000π/6 = 900πe - 500π.

Therefore, the counterclockwise line integral of F around the circle C is 900πe - 500π, which simplifies to 900πe.

To learn more about Stokes' theorem click here, brainly.com/question/32258264

#SPJ11

Answer:

Option (4)

Step-by-step explanation:

STEP - 1

cos(x + y)

STEP - 2

\(\text{sin}[\frac{\pi}{2}-(x+y)]\)

STEP - 3

\(\text{sin}[(\frac{\pi}{2}-x)-y]\)

STEP - 4

\(\text{sin}(\frac{\pi}{2}-x)\text{cos}(-y)+\text{cos}(\frac{\pi}{2}-x)\text{sin}(-y)\)

STEP - 5

cos(x)cos(y) - sin(x)sin(y)

[Since, \(\text{sin}(\frac{\pi}{2}-x)=cos(x)\) and \(\text{cos}(\frac{\pi}{2}-x)=\text{sin}(x)\)]

[Since, cos(-x) = cos(x) and sin(-x) = -sin(x)]

Therefore, Option (4) will be the correct option.

Answer:

D

Step-by-step explanation:

Top Answer was right, don't know why it was rated poorly

The minimum value of c = 7x + 8y is 42. The minimum value is obtained at point (6, 0).

To calculate the minimum value of the given equation w.r.t the given constraints(inequalities), the steps are:

Step 1: Identify the system of inequalities in the given constraints

Step 2: Graph those inequalities

Step 3: Identify the maximum and minimum values of x and y that satisfy the given inequalities

Step 4: Then, with the obtained coordinates solve the given equation to get the minimum value.

The given equation is C = 7x + 8y, and the constraints list is

2x + y ≥ 0

x + y ≥ 6

x ≥ 0

y ≥ 0

Graphing these inequalities and shading the region that satisfies the given inequalities.

So, from the graph,

the x-values that satisfy all the given inequalities are [6, ∞]

the y-values that satisfy all the given inequalities are [0, ∞]

So, the required coordinate is (6, 0). By this, we can calculate the minimum value of the given equation C = 7x + 8y

Then,

C = 7(6) + 8(0) = 42 + 0 = 42

Thus, the minimum value of the given equation is 42.

Learn more about finding minimum value here:

https://brainly.com/question/10114820

#SPJ1

Disclaimer: The given question is incomplete. Here is the complete question.

Question: What is the minimum value of c = 7x 8y, given the constraints on x and y listed below?

2x + y ≥ 0

x + y ≥ 6

x ≥ 0

y ≥ 0

Answer:

< - 8, 13 >

Step-by-step explanation:

r + s

= < - 3, 5 > + < - 5, 8 > ← add corresponding components of the vectors

= < - 3 - 5, 5 + 8 >

= < - 8, 13 >

Answer:

8

Step-by-step explanation:

given the areas are equal then equate the areas of both, that is

area of parallelogram = lb ( l is the length and b the breadth )

here b = 2 , then

area = 2l

area of triangle = \(\frac{1}{2}\) bh ( b is the base and h the height )

here b = 8 and h = 4 , then

area = \(\frac{1}{2}\) × 8 × 4 = 4 × 4 = 16 cm²

Now equate the 2 areas

2l = 16 ( divide both sides by 2 )

l = 8 cm

the number in the box is then 8

The probability that for one such phone number is approximately 0.344

There are 10 possible digits (0-9) for each of the last four digits of the telephone number. Therefore, there are \(10^4\)= 10,000 possible telephone numbers that can be generated using this method.

The probability that the last four digits do not include any 0s is:

P(no 0s) = \((9/10)^4\) = 0.6561

So, the probability that the last four digits include at least one 0 is:

P(at least one 0) = 1 - P(no 0s) = 1 - 0.6561 = 0.3439

Therefore, the probability that for one such phone number, the last four digits include at least one 0 is approximately 0.344 (rounded to three decimal places).

Learn more about probability

brainly.com/question/29381779

#SPJ11

Answer:

x=1+√3±√4-2√3 / 2

Step-by-step explanation:

hopefully ur able to type this much! happy to answer any questions abt this

Answer:

Yes because every x is matched with only one y

Step-by-step explanation:

A function is an equation where each input has a specific output

Step-by-step explanation:

6x + 2y = 10

2y = -6x + 10

y=-6/2x +10/2

y= -3x + 5

x + 2y = 4

2y = -x + 4

y= -1/2x + 4/2

y=-1/2x +2

Answer:

\(22\sqrt{2}\)

Step-by-step explanation:

\(\frac{sin(30)}{11\sqrt{2} } = \frac{sin(90)}{x}\)

Answer:

C

Step-by-step explanation:

Since the culture is observed to double every 6 hours, we know that the growth rate is constant at r = ln(2)/6 per hour.

To calculate growth rates, divide the difference between the starting and ending values for the period under study by the starting value. The most frequent time intervals for growth rates are annually, quarterly, monthly, and weekly.

We can use the formula for exponential growth to model the number of bacteria in the culture after t hours:

n(t) = n0e^(rt)where n0 is the initial number of bacteria.

Substituting in the values given in the problem, we get:

n(t) = 25e^[(ln(2)/6)t]Simplifying this expression using the properties of logarithms, we can rewrite it in the form:

n(t) = 25(2)^(t/6)This is the exponential model for the number of bacteria in the culture after t hours.

To know more about  growth rate visit:

https://brainly.com/question/23879811

#SPJ4

The exponential model for population of bacteria, \(n(t) = n_0{2}^{\frac{t}{a} }\) can be written \(n(t) = 25 \times {2}^{\frac{t}{6} }\) for the number of bacteria in the culture after t hours. The estimate number of bacteria after 13 hours is equals to the 112. In 92 hours, the bacteria count will reach to 1 million.

We have a certain culture of the bacterium Rhodobacter.

Initial population, n₀ = 25

The population become doubles in every 6 months. The exponential model

\(n(t) = n_0{2}^{\frac{t}{a} }\) for the number of bacteria in the culture after t hours. Now, the population become double in 6 hours, so a = 6 , then exponential equation is \(n(t) = 25 \times {2}^{\frac{t}{6} }\).

We have to estimate the number of bacteria after 13 hours. That is t = 13 hours, \(n( t) = 25( 2)^{\frac{t}{6}}\)

Substitute t = 13 hours

\( = 25( 2)^{\frac{13}{6}}\)

\(= 25( 2)^{2.16}\)

= 111.728713807 ~ 112

So, n(13) = 112

We have to determine the value of t in hours for n(t) = 1 million = 1000000, using the above equation, \(1000000 = 25( 2)^{\frac{t}{6}}\)

\(40000 = ( 2)^{\frac{t}{6}}\)

Taking natural logarithm both sides

=>\( ln( 40000) = ln(( 2)^{\frac{t}{6}})\)

=> \(ln(40000) = \frac{t}{6} ln(2)\)

=> \(t = \frac{6 ln( 40000)}{ ln(2)}\)

= 91.7262742773 ~ 92

Hence, required value is 92 hours..

For more information about exponential model, visit:

https://brainly.com/question/29527768

#SPJ4

Answer:

It's DCAA!

1) 14

2) 141

3) 39

4) 39

Answer:

The number 8 should be at the right side point 8

Step-by-step explanation:

hope this helps!