I need help mann I’m stuck

The value of 'a' is equal to -12, the value of 'b' is equal to 5 and the value of 'k' is equal to -11.

The stationary points of a curve are those points at which the first derivative of the function f(x) becomes zero. At the stationary points, the nature of the function is neither increasing nor decreasing.

→ The stationary points of a curve can either be a local minima or a local maxima of the function.

→ If we plot the graph of the curve, then stationary points can be said to be those points at which the tangent to the curve becomes horizontal which means the tangent becomes parallel to the x-axis.

→ Therefore for a point (a,b) to be the stationary point of a function f(x): f'(a) must be equal to zero.

→ For the given question:

f(x) = y = x³ + ax + b

f'(x) = 3x² + a

(2, k) is a stationary point:

f'(2) = 0

f'(2) = 3(2)² + a = 0

a = -12

 The value of 'a' comes out to be equal to -12.

→ Hence the equation of the curve is: y = x³ - 12x + b

→ The stationary points (2, k) and (-2, 10-k) must be lying on the curve, hence they must satisfy the equation of the curve:

→ Putting (2, k) in the equation of the curve:

k = (2)³ - 12(2) + b

(k - b) = -16 - Equation (i)

→ Putting (-2, 10 - k) in the equation of the curve:

(10 - k) = (-2)³ -12(-2) + b

(10 - k) = -8 + 24 + b

b = -6 - k - Equation (ii)

→ Putting the value of 'b' from the equation (ii) in equation (i):

k - (-6 - k) = -16

k + 6 + k = -16

2k = -22

k = -11

∴ The value of 'k' comes out to be equal to -11.

→ Putting the value of 'k' in equation (i):

k - b = -16

-11 - b = -16

b = 5

∴ The value of 'b' comes out to be equal to 5.

Therefore, the value of 'a' is equal to -12, the value of 'b' is equal to 5 and the value of 'k' is equal to -11.

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Answer: The image T(V) is defined as the set {k | k=T(v) for some v in V}. So x=T(y) where y is an element of T^-1(S). The preimage of S is the set {m | T(m) is in S}. Thus T(y) is in S, so since x=T(y), we have that x is in S.

Given a function f:A→B, and D⊆B, the preimage D of under f is defined as f−1(D)={x∈A∣f(x)∈D}. Hence, f−1(D) is the set of elements in the domain whose images are in C. The symbol f−1(D) is also pronounced as “f inverse of D.”

In geometry, figures in a plane can be transformed in a variety of ways, including shifts and scaling, to produce new shapes. The new (transformed) shapes are called images and the original, unaltered shapes are called preimages.

In geometry, figures in a plane can be transformed in a variety of ways, including shifts and scaling, to produce new shapes. The new (transformed) shapes are called images and the original, unaltered shapes are called preimages.

Step-by-step explanation:

The percentage of students with GPAs greater than 1.66  is 88.22%.

To answer this question, we need to use the empirical rule, which states that 68% of the data is within one standard deviation of the mean. To calculate the percentage of students with GPAs greater than 1.66, we need to subtract the percentage of students with GPAs less than 1.66 from 100%.

The percentage of students with GPAs less than 1.66 can be calculated by subtracting 1.66 from the mean of 2.56, then dividing by the standard deviation of 0.45. This gives us 2.11 standard deviations below the mean, which corresponds to a percentile of 11.78%.

Therefore, the percentage of students with GPAs greater than 1.66 is 100% - 11.78% = 88.22%.

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The surface area of the cuboid is 148 cm².

The surface area of a cuboid is the total space occupied by it. A cuboid is a six-faced three-dimensional shape in which each face is in the shape of a rectangle.

Given that, a cuboid has volume of 120 cm³ and the area of the base of the cuboid is 30 cm².

We know that, the volume of cuboid is l×b×h.

Here, l×b=30

Now, 30×h=120

h=4 cm

We know that, surface area of the cuboid is 2(lb+bh+hl)

= 2(30+h(b+l))

= 2(30+4(b+l))

We have, l×b=30

Pair of factors of 30 are

2×15=30

3×10=30

5×6=30

So, the possible surface area is

2(30+4(2+17))

= 2×106

= 212 cm²

2(30+4(3+10))

= 2×82

= 164 cm²

2(30+4(5+6))

= 2×74

= 148 cm²

Therefore, the surface area of the cuboid is 148 cm².

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Answer: 188.53$ in total.

$31.42 as hourly wage .

Step-by-step explanation:

Wage1 for 6hours = $12.4 * 6

Wage2 for 20minutes = $12.4 / 3

Since an Hour has three 20 minutes in it , so hourly wage $12.4 is divided by 3 to get the wage for a 20minute work.

Wage3 as Tips = $110

Total Wages for Tuesday = Wage1 + Wage2 + Wage3

                                           = $188.53

New hourly Wage = $188.53 / 6 = $31.42

Answer:

30

Step-by-step explanation:

30

Answer:

x = -6

y = -18

Step-by-step explanation:

6x -2y = 0

x - y = 12

Times the second equation by -2!

6x -2y = 0

-2x + 2y = -24

Now add them together and solve for x first!

4x = -24

x = -6

Now put -6 back in the equation and solve for y

6(-6) -2y = 0

-36 - 2y = 0

-2y = 36

y = -18

So, x= -6

     y= -18

Answer:

Step-by-step explanation:

When the temperature T is 500, the pressure p is 400. If we let "k" represent the constant of proportionality that relates p and T, then we can write the relationship between p and T as:

p = k * T

Substituting the known values of p and T into this equation, we get:

400 = k * 500

Solving for the constant of proportionality k, we find that:

k = 400/500 = 0.8

Now that we know the value of the constant of proportionality k, we can use it to find the value of p when T = 600. Substituting this value of T into the equation above and solving for p, we get:

p = 0.8 * 600 = 480

Therefore, when T = 600, the pressure p is 480.

Answer:

Step-by-step explanation:

Rena Roosh,  fun name  :P  so,  just use  your algebra skillz

2x + 5x = 3x + 16

I'm wondering if there is an extra "x" on the right hand side,  

anyway

7x -3x = 16

4x = 16

x = 4

see??

Answer:

Step-by-step explanation: Perform any simplification of like terms if possible

7x=3x+16

Collect x terms on one side. Can use the left side for x terms. That means 3x must dissapear. To do this we need to take 3x from both sides.

7x-3x=3x-3x+16

4x=16

To solve for x we need to divide by 4 on both sides

4x/4=16/4

x=4

Answer:

The Triangle Inequality Theorem states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side. In other words, the length of one side of a triangle must always be shorter than the sum of the lengths of the other two sides. This theorem is often used in geometry to determine whether or not a given set of lines can form a triangle.

When it comes to angles, the Triangle Inequality Theorem can be used to determine whether or not a triangle can be formed given the measures of its angles. For example, if the measures of two angles in a triangle are 45 degrees and 60 degrees, the measure of the third angle must be less than 180 degrees - 45 degrees - 60 degrees, or 75 degrees. If the measure of the third angle is greater than 75 degrees, it is not possible for the three angles to form a triangle.

Overall, the Triangle Inequality Theorem is a useful tool for understanding the relationships between the sides and angles of a triangle, and for determining whether or not a given set of lines or angles can form a triangle.

Step-by-step explanation:

The height of the triangle is determined by the formula, 2 × Area / Base

Given,

Triangle;-

A triangle is a polygon with three vertices and three sides. The angles of the triangle are formed by the connection of the three sides end to end at a point. The triangle's three angles add up to 180 degrees in total.

We have to find the formula for height of triangle;

According to theorem;

The  area of the triangle = 1/2 × base × height

Then,

Height of the triangle = 2 × Area / Base

That is,

The formula for the height of the triangle is 2 × Area / Base

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Complete question is here;

What is the formula to find the height of a triangle?

Answer:

25.2 cm

Step-by-step explanation:

[tex]\angle S=180^{\circ}-165^{\circ}-13^{\circ}=2^{\circ} \\ \\ \frac{t}{\sin T}=\frac{s}{\sin S} \\ \\ \frac{t}{\sin 165^{\circ}}=\frac{3.4}{\sin 2^{\circ}} \\ \\ t=\frac{3.4\sin 165^{\circ}}{\sin 2^{\circ}} \\ \\ t \approx 25.2[/tex]

Step-by-step explanation:

kya tablet side apply the side of the wall has 22 M and 20 m

The equation of the pyramid is as follow,

Volume is equal to one by third of the Area of the base into Height.

V=(1/3) X A X H, where A is area and H is height.

The sum of a pyramid's side faces makes up the lateral surface area.

LSA of the pyramid multiplied by the base's area gives the total surface area.

A pyramid is a 3D shape that has a base made of a polygon and faces that are all triangular and linked. The conventional form of a pyramid is created by joining each vertex of the base to a single common tip or apex. In this part, let's study more about pyramids.

The area encompassed between a pyramid's faces is referred to as the pyramid's volume. The formula for each pyramid varies based on the pyramid's foundation. The formula used to determine a pyramid's volume, which is expressed in cubic units, is as follows V=(1/3) X A X H.

Different forms of pyramids have varying amounts of surface area. The following formula is used to determine a pyramid's surface area:

Surface Area = Base Area + (½ × Perimeter of the base × Slant height)

Surface Area = Base Area + Lateral Area.

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Answer:

Yes, there is an error in the third step of the solution. The correct result of the third step should be -2x ≤ 8, not -2x ≤ -2. The error occurred because the incorrect value was subtracted from both sides of the inequality

Step-by-step explanation:

The final answer for the inequality 3x − 8 ≤5x + 6 is x ≥ -7, and the third step is wrong, the right answer is -14 ≤ 2x.

An inequality is a relation that compares two numbers or other mathematical expressions in an unequal way. It is most frequently used to compare the sizes of two numbers on the number line.

Given:

3x − 8 ≤ 5x + 6

Add 8 on both sides of the inequality as shown below,

3x − 8 + 8 ≤ 5x + 6 + 8

3x ≤ 5x + 14

Subtract -3x from both sides as shown below,

3x - 3x ≤ 5x + 14 - 3x

0 ≤ 2x + 14

Subtract 14 from both sides as shown below,

0 - 14 ≤ 2x + 14 - 14

-14 ≤ 2x

Divide both sides by 2 as shown below,

-14 / 2 ≤ 2x / 2

-7  ≤ x

or x ≥ -7

Thus, the final answer is x ≥ -7.

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Answer: Adult: $20  Child: $9

Step-by-step explanation:

20 + 20 + 20 = 60

9 + 9 + 9 + 9 = 36

60 + 36 =96

Answer:

Area = 9√3 cm²

Perimeter = 18 cm

Step-by-step explanation:

(√3/4) × 6²

= (√3/4) × 36

= 9√3 inches2

Perimeter of an equilateral triangle = AB+BC+CA

Perimeter of an equilateral triangle = 6+6+6

Perimeter of an equilateral triangle = 18 cm

The graph of x = 2 is a vertical line parallel to y-axis. Also, the slope of x = 2 is undefined and there is no y-intercept.

In this question we need to describe the graph of x is equal to 2.

To draw the graph of x = 2, firstwe find some coordinates of the points.

Consider the points (2, 1), (2, 0), (2, -1)

[As the x coordinate is fixed, we can take any value of y coordinate]

The graph of x = 2 is as shown below.

The graph of x = 2 is a straight vertical line, which is parallel to y-axis.

There is no y-intercept to the graph of x = 2.

Also the slope of line x = 2 is undefined.

Therefore, the graph of x = 2 is a straight line with Slope = Undefined

and no y-intercept.

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So the mountain will be approximately 798.02 meters tall after 8 millennia.

The mountain loses 5% of its elevation every millennium, which is the same as losing 0.05 * its current elevation. Therefore, after 1 millennium, the mountain's elevation will be 1 - 0.05 = 0.95 times its current elevation. After 2 millennia, it will be 0.95 * 0.95 = 0.9025 times its current elevation, and so on.

After 8 millennia, the mountain's elevation will be 0.95^8 times its current elevation. We can calculate this as follows:

Elevation after 8 millennia = 1,300 meters * 0.95^8

= 1,300 meters * 0.6134

= approximately 798.02 meters

So the mountain will be approximately 798.02 meters tall after 8 millennia.

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After 8 millennia, the mountain's elevation will be 0.95^8 times its current elevation. We can calculate this as follows:

Elevation after 8 millennia = 1,300 meters * 0.95^8

= 1,300 meters * 0.6134

= approximately 798.02 meters

So the mountain will be approximately 798.02 meters tall after 8 millennia.

Answer:

hlo bro what's up where r u from

Four main functions of the roots of the plant is given by:

1. Anchorage

2. Absorption of water and minerals

4. Prevention of the soil erosion.

5. Transportation of food from the soil.

Four function of the roots of any terrestrial  plants:

Anchorage of the plant :Due to anchorage of the plant root fix in the soil  and help in growing the aerial shoot system part of the any tree or plant.

Absorption of water and minerals: It helps to absorb water and minerals from the soil to the roots of the plants .

Prevention of the Soil Erosion : Due to root of the plant soil gets binds to the roots of the plants and does not or in very less quantity get eroded by water or wind.

Transport : Roots of the plants helps to transport food , salt , mineral , and water which given or present in the soil to the shoot or leaves and flowers , fruit of the plant.

Therefore, the four functions of the roots are:

1.Anchorage of the plant

2. Absorption of water and minerals

3. Prevention of the soil erosion

5. Transportation of food.

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Answer:

(0,2)

(1,-3)

(2,-8)

When two parallel lines are cut by a transversal, the four angles formed inside the parallel lines are called interior angles.

Interior angles are the angles formed between the two lines and the transversal that lie within the region bounded by the parallel lines. There are always four interior angles formed when two parallel lines are cut by a transversal. These angles are equal in measure and are supplementary to the corresponding exterior angles. In other words, the sum of an interior angle and its corresponding exterior angle is equal to 180 degrees. Understanding the properties of interior angles is important in geometry, as they can be used to prove the parallelism of lines.

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Answer:

When you roll a fair die you have an equal chance of getting each of the six numbers 1 to 6. The expected value of your die roll, however, is 3.5.

Step-by-step explanation:

hope this helps

mark me brainliest

Answer:

Step-by-step explanation:

The matrix B that organizes the data is given as follows:

B = [13, 36, 27,

      10, 15, 0,

       23, 51, 27].

The matrix that shows the total value of each cap size in each location is given as follows:

C = [247, 684, 513,

      190, 285, 0,

      437, 969, 513].

The matrix B is defined considering that it will have three rows and three columns, as follows:

Then the matrix B is defined as follows:

B = [13, 36, 27,

      10, 15, 0,

       23, 51, 27].

The cost of each baseball cap is of $19, thus the cost matrix is obtained multiplying the matrix B by the constant of 19.

When a matrix is multiplied by a constant, all the elements of the matrix are multiplied by the constant, hence the cost matrix is given as follows:

C = [247, 684, 513,

      190, 285, 0,

      437, 969, 513].

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The valid statement regarding the truth value is B. The truth value of p → q is T.

A truth value, also known as a logical value, is a measure of how true a proposition is in logic and mathematics. In classical logic, there are only two possible truth values.

A proposition's attribute indicating whether it is true or false is the definition of a truth value. A statement or proposition's truth or falsehood determines its truth value. Every statement has one of the two truth values, true or false, according to our theory.

Since the truth values of p and q are both false, the truth value of p → q is T according to the truth table.The correct option is B.

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Complete question

If the truth values of both p and q are false, then which of the following is a valid statement?

The truth value of p → q is F.

The truth value of p → q is T.

The truth value of p → q cannot be determined without knowing what p and q represent.

The truth value of p → q could be either T or F.

Step-by-step explanation:

I just answered this question. how often did you post it ?

in short again :

360 = 8x + 20 + 104 + arc angle KJP

arc angle KJP = 2× opposite angle of K and P =

= 2×(5x + 1)

so, together

360 = 8x + 124 + 2×(5x + 1) = 8x + 124 + 10x + 2 =

= 18x + 126

234 = 18x

x = 13

The probability of having one white ball is 1/20 or approximately 0.05.

To find the probability of selecting one white ball out of three balls, you need to know the number of white balls in the box and the total number of balls in the box. You also need to know whether the balls are being selected randomly or not.

Assuming that there is only one white ball in the box and the rest are some other color, and that the balls are being selected randomly.

The probability of selecting one white ball out of three would be:

Probability = (number of ways to select one white ball out of three) / (total number of ways to select three balls)

Since there is only one white ball, there is only one way to select one white ball out of three. The total number of ways to select three balls out of six is 6 choose 3, which is equal to 20.

Therefore, the probability of selecting one white ball out of three would be

Probability = (number of ways to select one white ball out of three) / (total number of ways to select three balls)

Probability = 1/20

Probability = approximately 0.05.

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No, All equilateral triangles need not to be always congruent with one another .

Justification of answer:

The reason is that although an equilateral triangle's angles are all 60 degrees, their corresponding sides are not necessarily the same .

1. All 3 side of an equilateral triangles have same length .

2. All 3 angles of an equilateral triangles have same measure.

3. Each angles of an equilateral triangles is 60 degree .

4. Area of equilateral triangles = [tex]\frac{\sqrt{3} }{4} *a^2[/tex]

5 . Perimeter of an equilateral triangles = 3*a

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