Evaluate -1 -3- (-9) + (-5).
​

Answer:

i cant see the image

Step-by-step explanation:

Answer:

45°

Step-by-step explanation:

Segments GJ and HK intersect at F.

That makes angles JFK and GFH vertical angles and congruent.

An arc has the same measure as its central angle.

m<GFH = 45°

m<JFK = m<GFH

m<JFK = 45°

Answer:

True

Step-by-step explanation:

expression

3x+5

equation

3x+5 =0

Answer:

C 3.5t + 15, where t is the number

of days

Answer:

Step-by-step explanation:

\(0\le -2x+6<16\\ \\ -6\le -2x<10\\ \\ 3\ge x>-5\\ \\ -5<x\le 3\\ \\ \text{So the line should go from -5 to 3 with a hollow dot at -5 and a solid dot at 3}\)

Answer:

\(inrease \: = 900 - 250 = 650 \\ persent = \frac{650}{250} \times 100 \\ = 65 \times 4 = 260\)

Answer:

2,778 in³

Step-by-step explanation:

Volume cube

v = 18³

v = 5,832

Volume sphere

v = (4/3)π9³

v = 3,053.6280592893

Volume space

v = 5,832 - 3,053.6280592893

v = 2,778.3719407107

2,778 in³

Answer:

Step-by-step explanation:

We need to first find the volume of the cube, then subtract from it the volume of the sphere. This is what we are being asked to find. First, the volume of the cube is length times width times height. Since this is a cube, all of the sides are the same length, making the volume

V = 18³ so

V = 5832 inches cubed. Now for the sphere.

The formula for the volume of a sphere is

\(V=\frac{4}{3}\pi r^3\) and we will use 3.1415 for π.

\(V=\frac{4}{3}(3.1415)(9)^3\) which gives us

V = 3053.538

Subtracting the volume of the sphere from the volume of the cube:

V = 5832 - 3053.538

V = 2778.462 inches cubed

The value of  integral sin (x^2+y^2)dA is 2π(cos(9) - cos(64)).

To evaluate this integral using polar coordinates, we first need to express the region R in terms of polar coordinates. In polar coordinates, the equation of a circle with radius r is given by r^2 = x^2 + y^2. So, the region R can be expressed as 3 < or = r < or = 8.

Now, we can express the integral in polar coordinates:

∫∫R sin (x^2+y^2)dA = ∫θ=0 to 2π ∫r=3 to 8 sin (r^2) r dr dθ

We integrate first with respect to r, then with respect to θ:

∫θ=0 to 2π ∫r=3 to 8 sin (r^2) r dr dθ

= ∫θ=0 to 2π [-cos(64) + cos(9)] dθ

= 2π(cos(9) - cos(64))

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The veterinarian should charge the patient's owner a total of $100.00 for administering four vaccines, as each vaccine is priced at $25.00.

The veterinarian charges a fixed price of $25.00 for each vaccination administered. In this case, since the veterinarian administered four vaccines to the patient, the total charge can be calculated by multiplying the cost of one vaccine ($25.00) by the number of vaccines administered (4). Therefore, the veterinarian should charge the patient's owner a total of $100.00 for the four vaccinations.

To break it down further, each vaccination carries an individual cost of $25.00. When the veterinarian administers the first vaccine, the owner is charged $25.00. Similarly, for the second, third, and fourth vaccines, the charges remain the same, totaling $75.00. Adding up all these charges, the total amount comes to $100.00. Hence, the veterinarian should charge the patient's owner $100.00 for administering four vaccines.

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Since Jasmine wants to enter a career with median earnings of at least $33,500, but she doesn’t want to go to college, the occupation that fits her will be C Private detective.

It should be noted that from the information, Jasmine wants to enter a career with median earnings of at least $33,500, but she doesn’t want to go to college.

A Makeup artist earns $31,820.

A Mathematician earns $86,930.

A Private detective earns $33,750

A Massage therapist earns $33,400.

Therefore, the best occupation for her since she doesn't want to go to college and earns above $33500 is the private detective.

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Answer:

C. Private detective

Step-by-step explanation:

Answer:

Step-by-step explanation:

The answer is 11 1/4

also if you know someone who has brainly plus can you tell them if I can use it for 1-2 days for edgeunity i'll give them 25 points possibly more

Step-by-step explanation:

the only thing youre missing is

radius = diameter / 2

Answer:

78.54 cm squared

Step-by-step explanation:

A=πr^2

Since they only give the diameter, divide the diameter by 2

π*25 = 78.54

Have a good day :)

Answer:

x = 4, x = -4

Step-by-step explanation:

Answer:

f (x,y) = sin (x,y)  & points = (1,0)

Maximum  rate of change in f at given point & direction = 1

Step-by-step explanation:

The function & points are not given,

Considering them as general example : f (x,y) = sin (x,y) & points = (1,0)

Maximum rate of change in f (x,y) happens in direction of ∇ f (1,0)

∇  f (x,y) =  [ df / dx ,  df/ dy ]

= [ y cos (xy) , x cos (xy) ]

∇ f (1,0)  = [ 0, cos (0) ] = (0,1)

Magnitude at (1,0) = ∇ f (1,0)  = √ 0^2 + 1^2  = 1

Answer:

9\(\sqrt{-5\)

Step-by-step explanation:

√-180

The probability of no one getting a hole in one on the sixth hole during the 1989 U.S. Open golf tournament is 0.95431 and the probability of exactly one golfer getting a hole in one on the sixth hole is 0.04478.

The probability of an event occurring is the number of favorable outcomes divided by the number of possible outcomes. In this case, the probability of a professional golfer making a hole in one is 1/3,709.

a. To find the probability that no one gets a hole in one on the sixth hole, we need to find the probability that each of the 174 golfers does not get a hole in one. The probability of not getting a hole in one is 1 - (1/3,709) = 3,708/3,709. The probability that no one gets a hole in one is (3,708/3,709)^174 = 0.95431. Therefore, the probability that no one gets a hole in one on the sixth hole is 0.95431.

b. To find the probability that exactly one golfer gets a hole in one on the sixth hole, we need to find the probability that one golfer gets a hole in one and the rest do not. The probability of one golfer getting a hole in one is 1/3,709 and the probability of the rest not getting a hole in one is (3,708/3,709)^173. There are 174 ways this can happen, so the probability is 174 * (1/3,709) * (3,708/3,709)^173 = 0.04478. Therefore, the probability that exactly one golfer gets a hole in one on the sixth hole is 0.04478.

In conclusion, the probability of no one getting a hole in one on the sixth hole during the 1989 U.S. Open golf tournament is 0.95431 and the probability of exactly one golfer getting a hole in one on the sixth hole is 0.04478.

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False. Cronbach's alpha is a measure of internal consistency reliability, not a measure of the correlation between scale items.

It assesses the extent to which the items in a scale or questionnaire are measuring the same underlying construct.

Cronbach's alpha is calculated based on the inter-item correlations among the items in a scale. It provides a measure of the average correlation between all possible pairs of items in the scale. The range of Cronbach's alpha is between 0 and 1, with higher values indicating greater internal consistency or reliability.

Essentially, Cronbach's alpha quantifies the extent to which the items in a scale are consistently measuring the same construct or concept. It assesses how well the items "hang together" as a reliable measurement tool.

While correlation between scale items is related to internal consistency, Cronbach's alpha specifically measures the degree to which the items are interrelated and provides a single coefficient that reflects the overall reliability of the scale. It does not directly indicate the extent of item-item correlations or the strength of individual item contributions to the scale.

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Answer:

False

Step-by-step explanation:

68% falls between the first standard deviation from the mean.

plus minus two would fall under 95%

The equations that represent this situation is

y = (-4/3)x + 31

y = 2x + 7

The collection of two or more linear equations involving the same variables is known as a system of linear equations. In this case, linear equations are first-order equations, where the maximum power of the variable is 1. One, two, or three variables may be present in a linear equation. As a result, we are able to formulate linear equations with n variables.

A collection of two or more equations with the same set of unknowns is referred to as a system of equations. The goal of solving an equation system is to identify values for each unknown that will satisfy all of the equations in the system. The system's equations may or may not be linear.

Let the smaller number be x and the larger number be y

So, As per the staement,

4x + 3y = 31

or, y = (-4/3)x + 31

again ,

y-7 = 2x

or, y = 2x + 7

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Therefore, The Coordinates of the THIRD VERTEX is:  ( 5, -3 )

        Calculate the midpoint of the given vertices:

        MidPoint = ( -5 + 5/2,  3 + 3/2 )

        MidPoint = ( 0, 3 )

        Distance = √( -5 -5 )^2 + ( 3 - 3 )^2

        Distance = √( -10 )^2  +  (0)^2

        Distance = √100

        Distance =  10

        Side Length =  10/√3

        Side Length = 10/1.7

        Side Length = 5.88

        Height = √3/2  *  Side Length

        Height  = 1.7/2  *  5.88

        Height  =  5

Since the origin lies inside the triangle, The Third Vertex will have a Positive  X-Coordinate and a Negative Y-Coordinate.

       ( x, y )

        x  =  -5 + x/2

        y   =  3 + y/2

       x  =  5

       y  = -3

        Hence, The Coordinate  of the Third Vertex is:  ( 5, -3 )

I hope this helps!

the answer tho this is that the tree is 14ft

Answer:

22.5

Step-by-step explanation:

20 ft for an 8 foot shadow but since you need 1 more foot

take half of 5 (2.5) and you get 22.5

To define a default field value in a form or a database, you can use the attribute "default". When you add the "default" attribute to a field, it will automatically assign the specified value to that field if no other value is provided by the user or system.

This can be particularly useful when designing forms or databases that require certain fields to have a value even when the user does not provide one.
For example, in a web form, you might have a "Country" field that requires users to select their country from a dropdown list. By setting a default value for this field, such as "United States," the system ensures that there is always a value associated with that field even if the user does not make a selection.
Similarly, in a database schema, you might have a "DateCreated" field that automatically assigns the current date and time as the default value. This ensures that the date and time are always recorded for each new entry, even if the user does not manually input a value.
In both cases, the "default" attribute allows you to streamline the data collection process and ensure that your forms and databases maintain consistent and complete data. Using default values can also improve the user experience by reducing the amount of input required, making it easier for users to complete forms and submit their data.

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Answer:

\(x = 2\)

Step-by-step explanation:

\( - 5(4x - 2) = - 2(3 + 6x) \\ - 20x + 10 = - 6 - 12x \\ 20x - 12x = 10 + 6 \\ 8x = 16 \\ \\ x = \frac{16}{8} \\ \\ x = 2\)

Hey there!

Solve for x :

x = 2 ✅

Distributive property: A(B + C) = AB + AC

-5(4x - 2) = -2(3 + 6x)

>> Distribute the -5 to the 4x and to the -2 :

-5(4x) + (-5)(-2) = -2(3 + 6x)

-20x + 10 = -2(3 + 6x)

>> Distribute the -2 to the 3 and to the 6x :

-20x + 10 = -2(3) + (-2)(6x)

-20x + 10 = -6 - 12x

>> Substract 10 from both sides :

-20x + 10 - 10 = -6 - 12x - 10

-20x = -12x - 16

>> Add 12x to each side :

-20x + 12x = -12x - 16 + 12x

-8x = -16

>> Divide both sides by -8 :

-8x / -8 = -16 / -8

x = 2

▪️Let's verify :

-5(4(2) - 2) ⇔ -5(8 - 2) ⇔ -5(6) ⇔ -30

-2(3 + 6(2)) ⇔ -2(3 + 12) ⇔ -2(15) ⇔ -30

Therefore, your answer is x = 2

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Answer:

The point-slope equation of the line is y - 2 = 3(x + 9)

Step-by-step explanation:

The form of the point-slope equation is y - y1 = m(x - x1), where

∵ The slope of a line is 3

∴ m = 3

∵ The line passes through point (-9, 2)

∵ x1 = -9

∴ y1 = 2

→ Substitute the values of m, x1, and y1 in the point-slope form

∵ y - y1 = m(x - x1)

∴ y - 2 = 3(x - (-9))

→ Remember (-)(-) = (+)

∴ y - 2 = 3(x + 9)

∴ The point-slope equation of the line is y - 2 = 3(x + 9)

Answer:

-1/5

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-1-0)/(5-0)

m=-1/5

The dimensions of the rectangular solid that will result in a solid with maximum volume are length = l = w = 1.5 cm, width = w = 1.5 cm, height = h = w = 1.5 cm.

A rectangular solid with a square base has a surface area of 13.5 cm^2. The dimensions that will result in a solid with maximum volume can be found using differentiation and optimization techniques. For a rectangular solid, the book can be given as

V = lwh

Given that it has a square base, then l = w, and the surface area can be given as:

S = 2lw + 2lh + 2wh

= 2l^2 + 4lh

= 13.5 cm^2

Substituting l = w, we have:

S = 2w^2 + 4wh

= 13.5 cm^2

Rearranging, we get:

wh = (13.5/4) - (w^2/2)

Differentiating the above equation concerning w and equating it to zero, we get:

dh/dw = 0

     0 = 0 - w

   w = 0

Therefore, the critical point occurs at w = 0. Using the second derivative test,

d^2h/dw^2 = -1

Therefore, the point obtained is a maximum point. To get the dimensions, we substitute the value of w into the surface area equation.

2w^2 + 4wh = 13.5 cm^2

2w^2 + 4w(h) = 13.5 cm^2

Since w = l,h = w

Substituting h = w into the equation, we have:

2w^2 + 4w(w) = 13.5 cm^2

6w^2 = 13.5 cm^2

w^2 = 2.25 cm^2

w = 1.5 cm

Therefore, the dimensions of the rectangular solid that will result in a solid with maximum volume are:

length = w = 1.5 cm, width = w = 1.5 cm, height = h = w = 1.5 cm.

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The correct answer is

\(\[\boxed{\begin{array}{l}G = \left[ {\begin{array}{*{20}{c}}1&0&0&0&1&1\\0&1&0&1&0&1\end{array}} \right]\end{array}}\].\)

The wrong answer on Chegg for the generator matrix is due to swapped values.

Given that the convolutional code is (2, 1, 2) with:

\(\[\begin{array}{l}g^{(1)} = \left( {\begin{array}{*{20}{l}}0&1&1\end{array}} \right)\\g^{(2)} = \left( {\begin{array}{*{20}{l}}1&0&1\end{array}} \right)\end{array}\]\)

Here we can see that there are two generator matrices, which are given as

:g1 = [0 1 1]g2 = [1 0 1]

We have to find the generator matrix (G) for the above convolutional code (2, 1, 2).

Formula to calculate generator matrix G for convolutional code is:

G = [I_k | T] , where T = [g1, g2 g1 + g2].

Here k is the number of states in the convolutional encoder, which is equal to 2 in this case.

Since we have g1 and g2, we can find T as follows:

\(\[T = \left[ {\begin{array}{*{20}{c}}0&1&1&1&0&1\end{array}} \right]\]where g1 + g2 is equal to [1 1 0].\)

Since we have the matrix T, we can now calculate G as follows:

\(\[G = \left[ {\begin{array}{*{20}{c}}1&0&0&0&1&1\\0&1&0&1&0&1\end{array}} \right]\]\)

Thus, the generator matrix G for the convolutional code (2, 1, 2) is:

\(\[G = \left[ {\begin{array}{*{20}{c}}1&0&0&0&1&1\\0&1&0&1&0&1\end{array}} \right]\]\)

Therefore, the correct answer is

\(\[\boxed{\begin{array}{l}G = \left[ {\begin{array}{*{20}{c}}1&0&0&0&1&1\\0&1&0&1&0&1\end{array}} \right]\end{array}}\].\)

The wrong answer on Chegg for the generator matrix is due to swapped values.

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Answer:

Step-by-step explanation:

Because even if you keep trying to find the solution it won't give you the solution so that'll mean there is NO solution

I hope this helped, plz rate 5 stars, give thanks, and Mark as brainilest (Probably) That'll be much appreciated

Because, When x=9, the original equation 

\( \sqrt{x} + 1 + 5 = 3\)

does not hold true.

We will drop x=9 from the solution set.

thats why this this equation has no solution.