What is the inverse of adding 13?

Answer:

9.5

Step-by-step explanation:

Is that what you mean by value?

I need a better explanation

Answer:

Step-by-step explanation:

It is nine and a half. What do you exactly mean by value?

Answer: the amount owed to the credit card company after returning both items is $642

Step-by-step explanation:

$254+$388= $642

Answer:

-642

Step-by-step explanation:

Answer:

14 mm squared is the area

Step-by-step explanation:

Answer:

Reflection.

Step-by-step explanation:

Reflection moves points across a specified line so that the line is the perpendicular bisector of each line segment connecting corresponding pre-image and image points.

On the other hand, "Translation" moves points the same distance along lines that are parallel to each other while "Rotation" moves points along concentric circles and through the same angle of rotation.

At an angle of 90°, a line of reflection intersects the line segments connecting corresponding points of the pre-image under a reflection.

Basically, a reflection allows us to flip an object or figure across a line, point or plane without any change in its shape or size.

Hence, to reflect an object or a figure such as a triangle simply means that its mirror image would be produced with respect to a line; this line is generally referred to as the line of reflection.

The given information is:

- The area of the sector of the circle is 31.2 cm^2.

- The exterior of the sector angle is 256°.

The area of the sector is given by the formula:

Where theta is the sector angle and r is the radius of the circle.

The whole circle measures 360°, so the sector angle can be found as follows:

Now, replace theta and the area value in the formula to solve for r:

The radius of the circle is 5.9 cm.

Answer:

23

Step-by-step explanation:

The third one

This graph is the only one that shows the correct slops with the correct y intercepts (-3 and 3)

The y-coordinate of the point that divides the directed line segment from J to K into a ratio of is 5.

The coordinates of point that divides the line segment into m:n ratio can be obtained as follows,

Coordinates of point = \((\frac{mx_{2}+ nx_{1} }{m+n} \frac{my_{2}+ ny_{1}}{m+n} )\)

The coordinate of point J is (-3,1)

The coordinate of point K is (-8,11)

Consider the point that divides the line segment into 2:3 ratio as P(x,y).

The coordinates of point that divides the line segment into 2:3 ratio can be calculated as follows,

\(Coordinates of P = (\frac{3(-3)+2(-8)}{2+3}, \frac{3(1)+2(11)}{2+3} )\)

\(= (\frac{-9-16}{5}, \frac{3+22}{5} )\\\\= (\frac{-25}{5} \frac{25}{5} )\)

= (-5,5)

Hence the answer is The y-coordinate of the point that divides the directed line segment from J to K into a ratio of 2:3 is 5.

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The expression that is a

parameterization of the line that passes through the point (2,-3) with a slope of 4 is option D. x= t and y = 4t - 6, for any t

It is a parameterization of the line that passes through the point (2,-3) with a slope of 4, because the point (2,-3) satisfies the equation x = t and y = 4t - 6 and the slope of the line is

A parameterization of a line is a set of equations that describe the location of points on the line in terms of a parameter. One common parameterization of a line is the point-slope form, which expresses the line as y = mx + b, where m is the slope of the line and b is the y-intercept.

Another common parameterization is the two-point form, which expresses the line as (x - x1)/(x2 - x1) = (y - y1)/(y2 - y1), where (x1, y1) and (x2, y2) are two distinct points on the line.

Therefore, the correct answer is as given above

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Answer:greengrocer should Dell 17 kg before profit. 500$ profit

Step-by-step explanation:

The probability of a radiation measurement of 599 or higher from a mountain known to have terrorists, assuming no nuclear danger, is about 0.0668.

We are given that the radiation levels observed by the satellite are normally distributed with a mean of 490 and a variance of 2916. We want to find the probability of a random radiation measurement being 599 or higher, assuming there is no nuclear danger.

First, we need to standardize the radiation level of 599 using the formula:

z = (x - mu) / sigma

where x is the radiation level, mu is the mean, and sigma is the standard deviation. Substituting the values we have:

z = (599 - 490) / √(2916) = 1.5

Now, we can use a standard normal distribution table or calculator to find the probability of a z-score of 1.5 or higher. The table or calculator will give us the area under the standard normal curve to the right of 1.5.

Using a calculator, we can find this probability as follows:

P(Z > 1.5) = 0.0668 (rounded to four decimal places)

Therefore, the probability of a random radiation measurement being 599 or higher is approximately 0.0668, assuming there is no nuclear danger.

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The circumference of the circle inscribed in a square of side 14 units is 43.96 units, on the basis of the fact that the diameter of the circle will be equal to the side of the square.

What is circumference?

Circumference is the length of a circle's boundary or the perimeter of any circular object or figure.A circle's circumference or an elliptical two-dimensional figure's perimeter are the same. Either the radius or the diameter of the circle are necessary components to calculate the circumference.

Circumference of circle=2πr       {where r=radius}

                                      =πd         {where d=diameter}

Given that the circle is inscribed in the square & it is the maximum possible circle that would fit inside the square of 14 units.

The diameter of circle= side of square that inscribes circle

                               d   = 14 units

Circumference of circle=πd

                                      =π(14)

                                      =14π      {in terms of π}

Circumference of circle=14π

                                      =14(3.14)            {taking π=3,14}

                                      =43.96 units

Circumference of circle=43.96 units

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Answer:

Step-by-step explanation:

Answer:

Required number is

Step-by-step explanation:

18-(-2)

=18+2

=20 degree celsius

Answer: $400,000

Step-by-step explanation:

Let the salesperson's total amount of sales, in dollars, for this year be represented by x.

Therefore, 60% of x = $240,000

60/100 × x = $240,000.

0.6 × x = $240,000..

x = $240000 / 0.6

x = $400,000

Therefore, the salesperson's total amount of sales, for this year is $400,000.

After 1 month, there will be approximately 9,750 Brand A users, 20,350 Brand B users, and 69,900 non-users.

After 2 months, the numbers change to approximately 9,532.5 Brand A users, 20,783.5 Brand B users, and 69,684 non-users.

Finally, after 18 months, the numbers are approximately 9,524.90 Brand A users, 20,805.48 Brand B users, and 69,669.62 non-users.

To determine the number of people in each group after a certain number of months, we can use a transition matrix and matrix multiplication.

Let's define the following matrices:

X = [A, B, N], where A represents Brand A users, B represents Brand B users, and N represents non-users.

P = [[0.75, 0.10, 0.15], [0.20, 0.75, 0.05], [0.10, 0.15, 0.75]], which is the transition matrix representing the probabilities of switching or staying with each brand or becoming a non-user.

To calculate the number of people in each group after 1 month, we can multiply the initial population matrix X0 by the transition matrix P:

X1 = X0 * P

To calculate the number of people in each group after 2 months, we multiply X1 by P:

X2 = X1 * P

To calculate the number of people in each group after 18 months, we multiply X0 by the transition matrix raised to the power of 18:

X18 = X0 * P^18

Now, let's calculate the results:

Initial population matrix:

X0 = [10,000, 20,000, 70,000]

After 1 month:

X1 = X0 * P

X1 = [10,000, 20,000, 70,000] * [[0.75, 0.10, 0.15], [0.20, 0.75, 0.05], [0.10, 0.15, 0.75]]

X1 = [9,750, 20,350, 69,900]

After 2 months:

X2 = X1 * P

X2 = [9,750, 20,350, 69,900] * [[0.75, 0.10, 0.15], [0.20, 0.75, 0.05], [0.10, 0.15, 0.75]]

X2 = [9,532.5, 20,783.5, 69,684]

After 18 months:

X18 = X0 * P^18

X18 = [10,000, 20,000, 70,000] * P^18

X18 = [9,524.90, 20,805.48, 69,669.62]

Therefore, after 1 month, there will be approximately 9,750 Brand A users, 20,350 Brand B users, and 69,900 non-users. After 2 months, the numbers change to approximately 9,532.5 Brand A users, 20,783.5 Brand B users, and 69,684 non-users. Finally, after 18 months, the numbers are approximately 9,524.90 Brand A users, 20,805.48 Brand B users, and 69,669.62 non-users.

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Answer:

Therefore, the elevation of the car on the stretch of road, rounded to the nearest tenth, is approximately 29.7 meters.

Step-by-step explanation:

To find the elevation of the car on a stretch of road that extends horizontally 125 meters, we can use trigonometry.

Given:

Angle of the road = 13°

Horizontal distance = 125 meters

We can use the tangent function to calculate the elevation:

tan(angle) = opposite / adjacent

In this case, the opposite side represents the elevation, and the adjacent side represents the horizontal distance.

Let's denote the elevation as "e". The equation becomes:

tan(13°) = e / 125

To solve for "e", we can rearrange the equation:

e = 125 * tan(13°)

Using a calculator, we can evaluate this expression:

e ≈ 125 * tan(13°) ≈ 29.7

Answer:

8.2

Step-by-step explanation:

x=10 1/4=41/4

we have to do  Unitary method.

when x=15 then y=12

when x=1 the y=12/15

when x=41/4 then y=(12*(41/4))/15

Answer:

1

Step-by-step explanation:

Answer:

Correct answer is A

Step-by-step explanation:

In pic

Credits: Symbolab)

(Hope this helps can I pls have brainlist (crown)☺️)

ANSWER

72.2 gallons

EXPLANATION

We can do a graph for these rectangles to understand the problem better,

Now, we have to find the sum of the areas of these rectangles. Note that all of them have a width of 2 units, so the sum of the areas is 2 multiplied by the sum of the heights of the rectangles,

Hence, the upper estimate for the total amount of water leaked out is 72.2 gallons.

Answer:

the store offered the better deal

Step-by-step explanation:

the store was only 20 dollars and online e was 42 so the store had the better deal

a) The value of circumference of circle is,

C  = 219.8 Inches

b) The value of area of circle is,

A = 3,846.5 in²

Given that;

The diameter of circle is, 70 inches

a) Circumference of circle is,

C = π × diameter,

So, We get;

C = 3.14 × 70

C  = 219.8 Inches

b) The area of circle is,

A = πr²,

And, Radius is 1/2 of diameter,

Hence, Radius = 70/2 = 35 inches

Thus, We get;

A =  3.14 × 35²

A = 3.14 × 1225,

A = 3,846.5 in²

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Answer:  ∠1 = 52°, ∠4 = 40°, ∠7 = 100°, ∠10 = 49°, ∠13 = 65°

Step-by-step explanation:

There are three formulas you need to find the angles. Each formula is based on where the vertex lies.

On the circle: Measure of the angle = (1/2) the arc

∠4 = (1/2)°80             ∠10 = (1/2)(18° + 80°)           ∠13 = (1/2)130°

    = 40°                           = (1/2)98°                            = 65°

                                       = 49°

Inside the circle: (1/2) Sum of the Big arc and Little Arc

∠7 = (1/2) (130° + 70°)

    = (1/2)200°

   = 100°

Outside the circle: (1/2) Difference of the Big arc and Little Arc

∠1 = (1/2)[(62° + 130°) - (70° + 18°)]

    = (1/2) (192° - 88°)

   = (1/2)104°

   = 52°

Below is the solution for ALL of the angles

Answer:

12n-20

Step-by-step explanation:

Use distribution

4×3n= 12n

4×(-5)= -20

12n-20

Answer:

12n - 20

Step-by-step explanation:

1. 4(3n-5)

2. 4(3n-5) = 12n - 20           multiply every number in (  ) by 4 (include variables)

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The measure of the angle ABC from the diagram is equivalent to 78 degrees.

We need to find <ABC

Let us produce BA to meet PR at point G.

It is given that BG || PQ

Thus, <RGB and <QPR are corresponding angles.

This shows that <RGB = <QPR since they are corresponding angles.

On the other hand, <QPR = 102 degrees and <ABC are <RGB consecutive interior angles, then:

<ABC + <RGB = 180

<ABC + 102 = 180

<ABC = 180 - 102

<ABC = 78 degrees

Hence the measure of the angle ABC from the diagram is 78 degrees.

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The standard form of the LP is

min z = 3x1 + x2
s.t.
x1+ - 3 >= 0
x2 >= 0
x2 <= 4 - x1
2x1 - x2 + s = 3
x1+, x1, x2, s >= 0.

The problem is in standard form with all constraints as "≤" inequalities and all variables non-negative.

To convert the given linear programming problem (LP) into standard form, we need to make sure that all the constraints are of the form "≤" and the objective function is in the form of "minimize" or "maximize" with all variables on the right side.

1. Start by converting the objective function. The given objective function is already in the form of "minimize," so no changes are needed.

2. Next, convert the first constraint, x1 >= 3. Since it is already in the correct form, we can move on to the second constraint.

3. Convert the second constraint, x1 + x2 <= 4. To convert it to the "≤" form, subtract x1 from both sides: x2 <= 4 - x1.

4. Now, convert the third constraint, 2x1 - x2 = 3.

Since it is an equation, we need to introduce a slack variable to convert it into an inequality.

Add a new variable, s, and rewrite the constraint as follows: 2x1 - x2 + s = 3.

5. Finally, we need to ensure that all variables are non-negative.

The given constraint x2 >= 0 is already in the correct form, but x1 has no explicit lower bound.

To address this, we can introduce a new variable, x1+, and rewrite x1 as the difference between x1+ and 3: x1 = x1+ - 3.

The standard form of the LP is now:
min z = 3x1 + x2
s.t.
x1+ - 3 >= 0
x2 >= 0
x2 <= 4 - x1
2x1 - x2 + s = 3
x1+, x1, x2, s >= 0.

In summary, the LP is converted to standard form by rewriting the constraints and introducing additional variables as necessary to ensure all constraints are in the form of "≤" and the objective function is in the form of "minimize."

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The answers that describe the quadrilateral DEFG area rectangle and parallelogram.

The correct answer choice is option A and B.

A quadrilateral is a parallelogram, which has opposite sides that are congruent and parallel.

Quadrilateral DEFG

if line DE || FG,

line EF // GD,

DF = EG and

diagonals DF and EG are perpendicular,

then, the quadrilateral is a parallelogram

Hence, the quadrilateral DEFG is a rectangle and parallelogram.

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