Divide x^2+x-4 by (x+3)

Using the law of indices

This can further be simplify into;

The circumferance of a circle with radius of 6cm is 37.68cm

To find:

Circumferance of a circle

Given:

Radius of circle is 6cm

Solution:

Circumference is similar to perimeter as it is the total length required to draw a circle.

Let c be the perimeter.

c = 2πr

or

c = πd

This depends on knowing the radius (r) or diameter (d).

For example, let's calculate it manually.

If r = 6 cm, the circumference in π is c = 2π(6) = 12π cm.

When expressed numerically, it is 37.7 cm after the decimal point is rounded off.

Learn more about Circumferance of circle here:

https://brainly.com/question/28926547

Given:

CK = 3x + 23

KT = 5x + 7

If K is the midpoint of CT, then CK = KT. Then,

Finding x:

Subtracting 3x from both sides:

Subtracting 7 from both sides:

And dividing both sides by 2:

x = 8.

Finding CT:

K is the midpoint of CT, then CT = CK + KT

CT = 94.

Answer:

x = 8

CT = 94

Value of m for which the graph of y = 3x² + 7x + m have two

x- intercepts is equal to m < 49 /12.

As given in the question,

Given graph equation:

y = 3x² + 7x + m

Graph y = 3x² + 7x + m has two x-intercepts if and only if

3x² + 7x + m<0 __(1)

Formula used to calculate x value is x = -b/2a

Compare with the standard form:

a= 3

b=7

c=m

x= -7/ 2(3)

  = -7/6

Substitute x=-7/6 in (1)

3(-7/6)² + 7(-7/6) +m<0

⇒49/12 -49/6 +m <0

⇒-49/12 +m<0

⇒m< 49/12

Therefore, Value of m for which the graph of y = 3x² + 7x + m have two

x- intercepts is equal to m < 49 /12.

The complete question is:

For what values of m does the graph of y = 3x²+ 7x + m have two x-intercepts?

a. m > 25/3

b. m < 25/ 3

c. m < 49 /12

Learn more about x- intercepts here

brainly.com/question/14180189

#SPJ1

The probability that she does not choose a Stephen king novel is 12/17.

What is probability?

Probability is a measure of the likelihood of an event to occur. Many events cannot be predicted with total certainty. We can predict only the chance of an event to occur i.e., how likely they are going to happen, using it. Probability can range from 0 to 1, where 0 means the event to be an impossible one and 1 indicates a certain event.

Given,

1) total books no shelf = 17

Novel of Stephen king = 5

The probability of stephen king = 5/17

The probability of not choosing Stephen novel = 1-5/17

= (17-5)/17

=12/17

2) total number of executives = 11

Number of men = 5

Number of women = 6

probability of a man = 5/11

Probability of a woman = 6/11

Given, one woman and 3 men are selected

therefore, using combination.

Total combinations = n! / (r! x (n - r)!)

n = 4

r = 3

Therefore, probability = n! / (r! x (n - r)!)[tex](5/11)^{1} (6/11)^{3}[/tex]

=4!/3!(1!)(5/11)^{1} (6/11)^{3}

=4(5/11)(216/1331)

=4320/14641

To know more about probability, visit:

https://brainly.com/question/13604758

#SPJ10

function y = 3.75 + 2.5(x - 3)

dy/dx = 0 + 2.5 - 0

dy/dx = 2.5

The rate of change of the cost in dollars = 2.5

Answer:

Explanation;

The set will be a right angled triangle as shown;

Answer: $17, 535

Evaluate the value of expression.

Answer is - 2.

Answer: х=-8  gooood luck

Step-by-step explanation:

Each egg carton holds 12 eggs. The number of eggs is proportional   to the number of egg cartons.

What does the word "proportional" mean?

Comparing the quantity of eggs and egg cartons is what we're attempting to do.

Since each carton contains 12 eggs, we can be certain that there will be 12 times as many eggs as there are cartons. Increases in egg production will follow increases in carton production, and vice versa.

Equal or having the same value are definitions of equivalent. Because 1/4, 2/8, and 0.25 all have the same value, they are all comparable. They are not equal because we only have 12 eggs in a carton.

Learn more about proportional

brainly.com/question/2548537

#SPJ13

Given:

Points: (3, -9) and (6, -2) on a coordinate plane

To find:

The distance between the two points

To determine the distance between the points, we will apply the formula:

Given

defect rate = 3%

Number of items chosen at random = 6

Find

probability that at least one will have a defect

Explanation

Probability of defective items = 3% = 0.03

Probability of non defective items = 1 - 0.03 = 0.97

so ,

probability that at least one will have a defect = 1 - Probability of 0 defects

Final Answer

Hence , the probability that at least one will have a defect is 0.167(approx)

To obtain x, we can sum the angles < AQB and < BQC

=> 5X + 8X - 24

=> 13X -24

we are also told that that the sum of their angles is 80

13X - 24 = 80

13 X = 24 + 80

13X = 104

Divide both sides by 13

x = 104/13

x = 8

The measure of the unknown central angle is 84°.

We are given that Titus drew a circle with the compass. The circle has five central angles, which measure 55°, 37°, 96°, 88°, and one of the angles is unknown.

A circle is a shape formed by all points in a plane that are at a particular distance from the centre. It is the curve sketched out by a point moving in a plane so that its distance from a particular point remains constant.

We know that the measure of the complete angle is 360°. Thus, the sum of all the central angles must be equal to 360°. Let the measure of the unknown angle be "x". The equation is given below :

55° + 37° + 96° + 88° + x = 360°

276° + x = 360°

x = 84°

To learn more about circle, visit :

https://brainly.com/question/11833983

#SPJ1

Note:

Multiplication of a positive and negative number gives a negative number as the product.

+ve x -ve = +ve

Part A:

Devon's statement is always true

For example,

-12 x 11 = -132

-7 x 16 = -112

Part B:

Rule: Multiplication of a positive integer with a negative integer gives a negative integer as the result

Given:

P(A) = 0.31

P(B) = 0.5

P(A or B) = 0.585

To find:

P(A and B)

To determine P(A and B), we will apply the formula:

The expression representing the time Philip spent in the challenge is 30x+750.

If an expression was created utilizing integer variables, constants, and algebraic operations, it is said to be algebraic (addition, subtraction, multiplication, division and exponentiation by an exponent that is a rational number)

Transcendental numbers, like such and e, are not algebraic, though, as they are not produced by the application of algebraic operations and numerical constants.

While it is common to produce with Euclidean expressions, the definition of e requires an unlimited number of algebraic operations.

An expression is considered to be rational if it can be completely reduced to a reasonable fraction using the principles of arithmetic operations ( associative properties and commutative properties of multiplication and addition, distributive property and rules for the operations on the fractions).

For the first 10 days:

read =10 x wrote 15 × 10 = 150

For the last 20 days

read =20 x

wrote = 30×20 = 600

Hence the total expression is 30x+750.

To learn more about expression visit:

brainly.com/question/14083225

#SPJ1

Through the given statement measurements we find that the height of the tree is = 33 m.

The right-angled triangle's relationship between its sides is explained by the Pythagorean Theorem, often known as Pythagoras Theorem, a key concept in mathematics.

The Pythagorean triple describes the sides of the right triangle. For the most part, the Pythagorean theorem is employed to determine a triangle's angle and the length of an ambiguous side.

The base, perpendicular, and hypotenuse formulas are derived by means of this theorem. The perpendicular, base, and hypotenuse of this triangle are its three named sides.

As it is on the other side of the angle of 90 degrees, the hypotenuse in this case is the longest side.

An equation, commonly known as a Pythagorean triple, is created by squared values for the sides of a right triangle that have positive integer values.

Let the Height of the Christmas tree be 'h' meters.

Length of the wire = (h + 9) meters

Distance from the base = (h - 23) meters

This scenario forms a right-angled triangle, with height = h m, base = (h-23) m and hypotenuse = (h+9) m

Now, as this is a right-angled triangle,

h^2 + (h-23) ^2 = (h+9) ^2           (Pythagoras theorem)

⇒ h^2 + h^2 - 46h + 529 = h^2 + 18h + 81

⇒ 2h^2 - h^2 - 46h - 18h = 81 - 529

⇒h^2 - 64h = -448

⇒ h^2 - 64h + 448 = 0

⇒ h^2 - (56 + 8) h + (56 x 8) = 0

⇒ (h - 56) x (h - 8) = 0

⇒ h = 56 or h = 8

Since the distance from the base = (h - 23) m cannot be a negative value,

therefore, h = 56 m

Therefore,

The height of the tree = 56 m,

The length of the wire = h + 9 = 56 + 9 = 65 m

The distance from the base of the tree to the wire = h -23

= 56 - 23 = 33 m

To learn more about Pythagoras Theorem, refer to:

brainly.com/question/21926466

#SPJ10

We have different steps for bisecting a line segment using a reflective device, and these steps are as follows:

And we have to select three of them to complete the process.

To determine the steps, we need to remember that the reflective device permits us to see through it, and also see reflections on it. Then the steps for bisecting a line segment AB are:

1. Place the reflective device anywhere on the segment - It does not matter the position at which we need to put the reflective device.

2. Move the reflective device around on the paper until the reflection of point A coincides with point B.

3. Draw the line of the reflection using the edge of the reflective device as a guide.

Therefore, in summary, the three steps are:

• Place the reflective device anywhere on the segment (,first box,).

• Move the reflective device around on the paper until the reflection of point A coincides with point B (,third box,).

• Draw the line of the reflection using the edge of the reflective device as a guide (sixth box),.

The ratio of height of the building to the number of floors is 119/7 and the unit ratio is 17 which means that the height of each floor is 17 ft.

In the given question,

The height of a building is proportional to the number of floors.

In the building have 7 floors.

That means, n = 7

the height of building H = 119 ft.

Since the height of a building is proportional to the number of floors.

So [tex]\frac{H}{n}=k[/tex] where k = constant.

Firstly we have to find the ratio of height of the building to the number of floors.

As we know, H = 119 ft, n = 7

So the ratio,

[tex]\frac{H}{n}=\frac{119}{7}[/tex]

The ratio of height of the building to the number of floors is 119/7.

Now we have to find the unit rate.

To find the unit rate we have to divide the height of building to the number of floors.

As we know,

[tex]\frac{H}{n}=\frac{119}{7}[/tex]

now simplifying the ratio by dividing the both number by 7

Unit ratio [tex]=\frac{H}{n}[/tex]

Unit ratio [tex]=\frac{119/7}{7/7}[/tex]

Unit ratio [tex]=\frac{17}{1}[/tex]

Unit ratio = 17

Hence, the unit ratio is 17 ft which means that the height of each floor is 17 ft.

To learn more about unit ratio link is here

https://brainly.com/question/22640777

#SPJ1

Answer:

3x=14

Explanation:

Given the two equations:

Adding the two equations gives:

we know that the endpoints of AB are

and the distance formula is given by

By substituying these points, we have that

which is equal to

then

On the other hand, if

similarly to the previous case, the distance between the endpoint for A'B' is

which is equal to

Now, by comparing equation A and equation B, we can see that, the scale factor is 1/3.

Then, the answer is B.

Answer:  she will need about 2 gallons of juice

Step-by-step explanation:

The discriminant and the point of tangency are used to find the values of the variables as follows;

7. The line y = m·x is tangent to the curve x² + 2·x·y + 2·x = 1 when m = 1

8. The line y = 2·x - k is tangent to the curve x² + y² = 5, when k = ±5

Exercise 11.

1. The discriminant of the equation x² - 6·x + y² - 2·y + 2 = 0 is zero when y = x - 6, therefore the line x - y = 6 is tangent to the curve x² - 6·x + y² - 2·y + 2

2. The exact values of k for which the line 2·x + 3·y = k is tangent to the curve C = 4·x² + 9·y² = 36 is k = ±6·√2

The discriminant is the values which are within the radical sign of the quadratic formula.

7. At the point of tangency, the discriminant is 0

The equation is; x² + 2·x·y + 2·x = 1

The equation of the line is; y = m·x

Rewriting the equation of the curve, we get;

x² + 2·x·y + 2·x = 1

2·x·y = 1 - x² - 2·x

[tex]y = \dfrac{1 - x^2 - 2 \cdot x}{2\cdot x}[/tex]

At the point of tangency, we have;

[tex]y = \dfrac{1 - x^2 - 2 \cdot x}{2\cdot x} = m\cdot x[/tex]

1 - x² - 2·x - 2·m·x² = 0

1 - x² - 2·m·x² - 2·x  = 0

1 - x²·(1 - 2·m) - 2·x  = 0

The discriminant is zero at the point of tangency, which gives;

((-2²) - 4× (-(1 - 2·m)) × 1) = 0

8 - 8·m = 0

8 = 8·m

m = 8 ÷ 8 = 1

8. The line y = 2·x - k is tangent to the curve, x² + y² = 5 where we have;

y² = 5 - x²

y² = (2·x - k)²

5 - x² = (2·x - k)²

Which gives;

k² - 4·k·x + 5·x² - 5

5·x² - 4·k·x + k² - 5

At a tangent point the discriminant is therefore;

(-4·k)² - 4 × 5 × (k² - 5) = 100 - 4·k² = 0

100 - 4·k² = 0

4·k² = 100

k² = 100 ÷ 4 = 25

k = √(25) = ±5

Exercise 11

1. The equation of the line is; x - y = 6

The equation of the curve is; x² - 6·x + y² - 2·y + 2 = 0

From the equation, x - y = 6, we get; y = x - 6

Which gives; x² - 6·x + (x - 6)² - 2·(x - 6) + 2 = 0

x² - 6·x + (x - 6)² - 2·(x - 6) + 2 = 2·x² - 20·x + 50 = 0

2·x² - 20·x + 50 = 0

x² - 10·x + 25 = 0

The discriminant is; (-10)² - 4 × 1 × 25 = 0

Therefore;

3. The curve 4·x² + 9·y² = 36 has the tangent line 2·x + 3·y = k, when we have;

4·x² + 9·y² = 36

9·y² = 36 - 4·x²

y² = (36 - 4·x²)/9 = 4 - (4/9)·x²

y² = 4 - (4/9)·x²

2·x + 3·y = k

3·y = k - 2·x

y = (k - 2·x)/3

y² = ((k - 2·x)/3)²

4 - (4/9)·x² = ((k - 2·x)/3)²

4 - (4/9)·x² - ((k - 2·x)/3)² = 0

8·x² - 4·k·x + k² - 36 = 0

(-4·k)² - 4 × 8 × (k² - 36) = 0

1152 - 16·k² = 0

16·k² = 1152

k² = 1152 ÷ 16 = 72

k = √(72) = ±6·√2

Learn more about finding the tangent to a curve here:

https://brainly.com/question/22426360

#SPJ1

Answer:

b)

Step-by-step explanation:

this is so becuz a fair die contains or has six parts meaning if its rolled once there are 6 probabilities so if its rolled twice the probabilities increase the chances are (1,1),(1,2),(1,3)... to (1,6) there is only one probability that its(3,3) so giving u 1/12 which when divided hives u b)

Answer:

166.07

Step-by-step explanation:

This is a linear function whose graph cuts the origin.

Therefore, any increase in the x axis will lead to a corresponding increase in the y axis by the same factor.

Thus, C is the answer

Solution:

The statement is given below as

From the image in the question, we can see that

Concept:

If two angles and a nonincluded side of one triangle are congruent to two angles and a nonincluded side of a second triangle, then the triangles are congruent.

Hence,

With the statements above, the final answer is

OPTION B is the right answer