The price of a car is usally £12,500 it is reduce to £11,625 what is the percentage of the reduction

Answers

Answer 1

12,500-11,625=875

1%=125

10%=1250

5%=625

625+125=750=6%

750+125=875=7%

so the percentage is 7%


Related Questions

public relations is part of business and administrative support true or false

Answers

Answer: true :))

Step-by-step explanation:

Final answer:

Public relations is part of business and administrative support as it helps manage a business's image and relationship with the public. Meanwhile, bureaucracy plays a role in not only enforcing policies but also in policy formation.

Explanation:

Public relations is indeed a part of business and administrative support. Businesses use public relations to manage and protect their image and relationship with the public. It's a key component to business administration as it helps businesses improve their brand awareness, manage crises, and strengthen relationships with stakeholders.

The question about bureaucracy is a separate query and in this context, the statement is false. Bureaucracy is not only involved in enforcing policies to ensure people comply, but it is also involved in the process of policy formation. Through different departments and offices, information is gathered, policy proposals are developed and recommendations are made to decision-makers.

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Richard practice each of 3 piano solos for 5/12 hours how long did he practice in all?

Answers

Answer: 1 hour and 15 minutes

Step-by-step explanation: When you multiply the 3 piano solos each for 5/12 of an hour you get 15/12 or 1 and 1/4. Then since 1/4 of an hour is 15 minutes, you will know that the answer is 1 hour and 15 minutes.

Identify the graph of the equation. What is the angle of rotation for the equation? (Picture provided)

Answers

Answer:

The equation is that of ellipse withe angle of rotation 30° ⇒ answer (d)

Step-by-step explanation:

* Lets talk about the general form of the conic equations

- Ax² + Bxy + Cy² +D = 0 (center is the origin)

- A is the coefficient of x² , B is the coefficient of xy

 C is the coefficient of y² , D is the numerical term

* Now we will study how to know the type of the graph of this equation

- If A and C have different signs (different values)

∴ The equation is that of an ellipse

- If A and C have different signs (different values)

∴ The equation is on a hyperbola

* Now look at the equation:

 13x² + 6√3 xy + 7y² - 16 = 0

∵ A = 13 , B = 6√3 , C = 7 , D = -16

∵ A and C have same sign

∴ The equation is that of an ellipse

* Now lets find the angle of rotation by using the Rule:

- tan(2Ф) = B/(A - C) ⇒ Ф is the angle of rotation

- By using the value of A , B and C

∴ tan(2Ф) = 6√3/(13 - 7) = 6√3/6 = √3

∴ 2Ф = [tex]tan^{-1}\sqrt{3}=60[/tex]

∴ 2Ф = 60° ⇒ divide both sides by 2

∴ Ф = 30°

∴ The angle of rotation is 30°

∴ The equation is that of ellipse withe angle of rotation 30°

* The graph represent the ellipse

- The purple line represents the angle of rotation

Solve the equation. Round to the nearest hundredth. Show work.

[tex]6e^{2x} - 13e^{x} = 5[/tex]

Answers

Answer:

x  =  0.0116096 ,  1.91705119

Step-by-step explanation:

I looked on a site to look this up.

Answer:

x = 0.92

Step-by-step explanation:

To solve this, we need first use the exponent rule of  [tex]e^{bc}=(e^b)^c[/tex]  on [tex]e^{2x}[/tex].  We can break it down to  [tex]e^{2x}=(e^x)^2[/tex]. We can now re-write as:

[tex]6(e^x)^{2}-13(e^x)-5=0[/tex]

This looks like a trinomial that we can middle term factorize by letting [tex]y=e^x[/tex]. Thus we can write and factorize and solve as shown below:

[tex]6(e^x)^{2}-13(e^x)-5=0\\6y^2-13y-5=0\\6y^2+2y-15y-5=0\\2y(3y+1)-5(3y+1)=0\\(2y-5)(3y+1)=0[/tex]

Thus, 2y-5 = 0 OR 3y+1 = 0

Solving we have  y = 5/2 and y = -1/3

Now bringing back the original variable of letting y = e^x, we have:

1. 5/2 = e^x, and

2. -1/3 = e^x

Solving 1:

[tex]\frac{5}{2}=e^x\\ln(\frac{5}{2})=ln(e^x)\\x=ln(\frac{5}{2})[/tex]

Solving 2:

We will have x = ln (-1/3) WHICH IS NOT POSSIBLE because ln is never negative.

So our answer is x = ln (5/2)

Rounding to nearest hundredth: x = 0.92

What is the simplified form of x plus 3 over x squared minus x minus 12 ⋅ x minus 4 over x squared minus 8x plus 16 ?

Answers

Answer:

[tex]\dfrac{1}{x^2-8x+16}[/tex]

Step-by-step explanation:

The expression, written in full, looks like this:

[tex]\dfrac{x+3}{x^2-x-12}\cdot\dfrac{x-4}{x^2-8x+16}[/tex]

To simplify this expression, it would help us out a lot if we could factor the expressions in the denominators. Let's handle [tex]x^2-x-12[/tex] first:

[tex]x^2-x-12=\\=x^2-4x+3x-12\\=x(x-4)+3(x-4)\\=(x-4)(x+3)[/tex]

Next, we can factor [tex]x^2-8x+16[/tex]:

[tex]x^2-8x+16=\\=x^2-4x-4x+16\\=x(x-4)-4(x-4)\\=(x-4)(x-4)\\=(x-4)^2[/tex]

Substituting these back into our original expression, we get

[tex]\dfrac{x+3}{(x-4)(x+3)}\cdot\dfrac{x-4}{(x-4)^2}[/tex]

On the left, we can cancel an (x+3) in the numerator and denominator, and on the right, we can cancel an (x-4), simplifying the expression to

[tex]\dfrac{1}{x-4}\cdot\dfrac{1}{x-4}[/tex]

Multiplying the two together gives us the fraction

[tex]\dfrac{1\cdot1}{(x-4)\cdot(x-4)}=\dfrac{1}{(x-4)^2}[/tex]

Since [tex](x-4)^2=x^2-8x+16[/tex], we can rewrite this fraction in simplified form as

[tex]\dfrac{1}{x^2-8x+16}[/tex]

Solve for x.

x/7 = -3

Answers

x = -21

explanation: a trick i used was just do -3 times 7 and get my answer -21. if you are unsure if the answer is right just check your work with a calculator. -21 divided by 7 is -3 so -21 is the value of x. please mark brainliest !!

What is the value of x?

Answers

Answer:

x = 4

Step-by-step explanation:

We are given a figure QRST which has two right angled triangles in it and we are to find the value of x.

To find x, we first need to find the side length of RT.

[tex]sin  60=\frac{2\sqrt{3} }{RT}[/tex]

[tex]RT = \frac{2\sqrt{3} }{sin 60}[/tex]

[tex] RT = 4 [/tex]

Now finding the value of x:

[tex] tan 45 = \frac { x } { 4 } [/tex]

[tex] x = tan 45 \times 4 [/tex]

x = 4

Plsss Urgent !! A container at the petting zoo holds 8138.88 cubic centimeters of grain. Visitors can fill paper cones with grain from the container. The cones have a radius of 4 centimeters and a height of 9 centimeters. How many times can you fill a cone with the grain that is stored in the container? Use 3.14 to approximate the value of Pi.

Answers

Answer:

54 times you can fill a cone with the grain that is stored in the container

Step-by-step explanation:

step 1

Find the volume of the paper cone

The volume of the cone is

[tex]V=\frac{1}{3}\pi r^{2} h[/tex]

we have

[tex]r=4\ cm[/tex]

[tex]h=9\ cm[/tex]

[tex]\pi=3.14[/tex]

substitute the values

[tex]V=\frac{1}{3}(3.14)(4)^{2} (9)=150.72\ cm^{3}[/tex]

step 2

Divide the total volume of the container by the volume of one paper cone

[tex]\frac{8,138.88}{150.72}=54[/tex]

Answer:

Its 54

Step-by-step explanation:

Leo bought a fish tank that is 37 inches wide, 24 inches long, and 15 inches high. One gallon of water fills 230.4 cubic inches of space. How many gallos of water, to the nearest tenth, will fill the fish tank?

Answers

Answer:

57.82 gallons will be needed to fill the tank

Step-by-step explanation:

Final answer:

Leo's fish tank can hold approximately 57.8 gallons of water to the nearest tenth, calculated by finding the volume of the tank in cubic inches and then converting that to gallons using the conversion factor.

Explanation:

To calculate how many gallons of water can fill the fish tank to the nearest tenth, we need to find the volume of the tank in cubic inches and then convert that to gallons using the given conversion factor.

Step 1: Calculate the volume of the tank in cubic inches

The volume of the tank (V) is given by the formula V = length × width × height.

V = 24 in. (length) × 37 in. (width) × 15 in. (height) = 13,320 cubic inches.

Step 2: Convert cubic inches to gallons

Using the conversion factor 1 gallon = 230.4 cubic inches:

Number of gallons = Volume in cubic inches ÷ Conversion factor

Number of gallons = 13,320 in³ ÷ 230.4 in³/gal ≈ 57.8 gallons

Therefore, Leo's fish tank can hold approximately 57.8 gallons of water when filled to the top.

CALCULUS HELP NEEDED PLEASE!!!!

1.) Find the area or the region bounded by the curves y = x^3 and y = 9x.
a. 0
b. 10.13
c. 40.50
d. 20.25

2.)The region in the first quadrant bounded by the x-axis, the line x = π, and the curve y = sin(sin(x)) is rotated about the x-axis. What is the volume of the generated solid?
a. 1.219
b. 3.830
c. 1.786
d. 5.612

Answers

1. The given curves intersect one another three times:

[tex]x^3=9x\implies x(x^2-9)=0\implies x=0,\pm3[/tex]

The area of the bounded region is

[tex]\displaystyle\int_{-3}^3|x^3-9x|\,\mathrm dx[/tex]

[tex]x^3-9x[/tex] is odd, but the absolute value makes it even. More formally,

[tex]|(-x)^3-9(-x)|=|-x^3+9x|=|x^3-9x|[/tex]

which means the integral is equivalent to

[tex]\displaystyle2\int_0^3|x^3-9x|\,\mathrm dx[/tex]

For [tex]0\le x\le 3[/tex], the definition of absolute value tells us that

[tex]|x^3-9x|=9x-x^3[/tex]

so the integral evaluates to

[tex]\displaystyle2\int_0^3(9x-x^3)\,\mathrm dx=\left(9x^2-\frac{x^4}2\right)\bigg|_{x=0}^{x=3}=\frac{81}2=40.5[/tex]

2. Using the disk method, the volume is given by the integral

[tex]\displaystyle\pi\int_0^\pi\sin^2(\sin x)\,\mathrm dx[/tex]

Use a calculator to get the result 1.219.

Un the morning a farm worker packed 4 pints of strawberries every 5 minutes in the afternoon she packed 3 pints of strawberries ev ery 4 minutes what was the diference between her morning and afternoon packing rates in pints per hour

Answers

Answer:

In the morning, the packing rates per hour was 45. In the afternoon, the packing rates per hour was 40. The difference is 5.

Identify the graph of the equation. What is the angle of rotation for the equation?
2xy – 9 = 0

Answers

Answer:

The answer is hyperbola; 45° ⇒ answer (b)

Step-by-step explanation:

* At first lets talk about the general form of the conic equation

- Ax² + Bxy + Cy²  + Dx + Ey + F = 0

∵ B² - 4AC < 0 , if a conic exists, it will be either a circle or an ellipse.

∵ B² - 4AC = 0 , if a conic exists, it will be a parabola.

∵ B² - 4AC > 0 , if a conic exists, it will be a hyperbola.

* Now we will study our equation:

* 2xy - 9 = 0

∵ A = 0 , B = 2 , C = 0

∴ B² - 4 AC = (2)² - 4(0)(0) = 4 > 0

∴ B² - 4AC > 0

∴ The graph is hyperbola

* To find the angle of rotation use the rule:

- cot(2Ф) = (A - C)/B

∵ A = 0 , B = 2 , C = 0

∴ cot(2Ф) = 0/2 = 0

∴ 2Ф = 90°

∴ Ф = 45°

* The answer is hyperbola; with angle of rotation = 45°

Suppose a computer technical support representative can answer calls from 8 customers in an hour. What is the probability that a customer will be on hold less than 15 minutes?

Answers

Answer:

Option d

Step-by-step explanation:

We need 2 fundamental data to solve this problem.

1.- Average number of clients attended in 1 hour.

2.- Time in which it is expected that a client will be attended.

They tell us that the average number of clients served in an hour is m = 8

They tell us to calculate the probability that the client will be seen in less than 15 minutes.

But the time t in the formula is given in hours.

Therefore we must write 15 minutes according to hours.

We know that [tex]1\ hour = 60 minutes[/tex].

So:

[tex]15\ minutes[\frac{1\ hour}{60\ minutes}] = 0.25\ hours[/tex].

Now we substitute in the formula [tex]m = 8[/tex] and [tex]t = 0.25[/tex] to find P.

[tex]P = 1 -e^{-mt}\\\\P = 1- e^{-(8)(0.25)}\\\\P = 1 - e^{-2}\\\\P = 0.8646\\\\P= 86\%[/tex]

Answer:

D edge

Step-by-step explanation:

ALGEBRA.
I have been stuck on this for awhile.
PLEASE HELP ME.

Answers

Solve for x in the denominator  by setting it to zero:

(x+6) = 6

x = -6

Now using the given equation but replace the constant with c :

x^2 +8x +C

Replace x with -6:

(-6)^2 +8(-6) +c

36 - 48 +C = 0

-12 +c = 0

c = 12

The constant needs to be 12 in order for (x+6) to be a factor.

In the diagram of circle C, diameter AB¯¯¯¯¯¯¯¯ is perpendicular to chord MN¯¯¯¯¯¯¯¯¯¯ at point O.

If MO=5x−7 and NO=18, what is the value of x? More help in the attachment.

Answers

Answer:

The value of x is equal to [tex]5[/tex]

Step-by-step explanation:

we know that

The diameter divide the circle into two equal parts

In this problem

MO=NO

substitute the values

[tex]5x-7=18[/tex]

solve for x

Adds 7 both sides

[tex]5x=18+7[/tex]

[tex]5x=25[/tex]

Divide by 5 both sides

[tex]x=25/5=5[/tex]

What is a variable? a. A variable is an unknown number or value represented by a letter c. A variable represents a change in value b. A variable always represents the total amount d. A variable is always represented by the letter x Please select the best answer from the choices provided A B C D

Answers

ANSWER

a. A variable is an unknown number or value represented by a letter

EXPLANATION

In mathematics, we use letters to represent an unknown quantity or number.

For instance, we can use the letter , t, to represent time taken to cover a given distance.

We can use the letter , s, to represent displacement or distance covered by an object.

The letters that we use to represent the unknown values or numbers are called variables.

The correct answer is A.

Final answer:

A variable is a characteristic that can change in value across different instances. It can be represented by any letter and can be numerical or categorical. In mathematical contexts, it often represents an unknown value in an equation.

Explanation:

A variable, which can be represented by any letter, and not just 'x', is a characteristic that can vary in value across different instances. It could refer to different types of measurables such as a numerical variable like 'x' representing the number of points earned by a student or a categorical variable like 'y' representing someone's party affiliation. Variables in mathematical contexts are often used in equations to represent unknown values.

For example, if 'x' represents the number of children in a family, each different integer value of 'x'(0, 1, 2, 3, etc) specifies a unique family structure. Therefore, option A : 'A variable is an unknown number or value represented by a letter' is the correct choice.

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One surface of a wheel on a toy wagon has an area of 36 square inches. What is the circumference of the wheel?

Answers

Answer:

I'm pretty sure the answer is 21.26

I hope thats right if not sorry mark me brainliest

The circumference of the wheel is 21.26 inch

What is circumference?

The circumference of a circle refers to the measure of its boundary. If we open a circle and measure the boundary just like we measure a straight line, we get the circumference of the circle in terms of units of length like centimeters, meters, or kilometers.

Now let us learn about the elements that make up circumference. These are the three most important elements of a circle.

Center: The center of the circle is a point that is at a fixed distance from any other point from the circumference.Diameter: The diameter is the distance across the circle through the center, it is a line that meets the circumference at both ends and it needs to pass through the center.Radius: The radius of a circle is the distance from the center of a circle to any point on the circumference of the circle.

Given:

Area of wheel= 36

πr² = 36

r²= 36/ 3.14

r = 3.385

Now,

Circumference of the wheel is

=2πr

=2*3.14*.3.385

=21.264 inches

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Can someone help me please. I can't figure out how to solve this problem.

Answers

Answer:

It's A . 13 / (5√10)

Step-by-step explanation:

AD =   √(3^2 + 4^2) = √25

= 5 ( By the Pythagoras Theorem).

So sin 2α = 3/5 and cos 2α = 4/5.

m < B = α ( external angle of a triangle theorem)

and BD = AD = 5 (Isosceles triangle) and  BC = 4+5 = 9.

AB =  √(3^2 + 9^2) = √90 = 3√10

So sin α = 3 / 3√10 =  = 1 /√10  and cos α = 9 /3√10  = 3/√10.

Finally sin 3α = sin (2α + α) = sin 2α cos α + cos 2α sin α

=  3/5 * 3 / √10 +  4/5 *  1/√10

=  13/(5√10).

Geometry help needed!

Answers

Answer:

13.76

Step-by-step explanation:

Area of the whole

The area of the whole = s^2 (the firgure is a square

s = 8

Area of the whole = 8^2 = 64

Area of the unshaded part

The 2 half circles = 1 whole circle

The radius of the 1/2 circle = 4 (eight has been cut in half)

Area of two half circles = 2* (pi r^2/2)

Area of two half circles = 2 * (pi 4^2/2)

area of two half circles =  16*pi

Area of the shaded area

Area of the shaded area = area of the whole - area of the unshaded area

Area of the shaded area = 64 - 16*pi

Area of the shaded area = 64 - 3.14*16 = 13.76

Instead of 1/4 an hour ellen spent 1/3 of an hour to meet each applicant how much more time did she spend meeting all applicants

Answers

Answer:

5 more minutes (total of 20 minutes per applicant)

Step-by-step explanation:

Divide an hour by 1/3 (60/3 = 20 minutes)

Divide an hour by 1/4 (60/4= 15 minutes)

By spending 1/3 of an hour (20 minutes) instead of 1/4 of an hour (15 minutes), she spent 5 more minutes meeting all applicants.

use naive gauss elimination as LU factorization to factor the following system10x1+2x2-x3=27-3x1-6x2+2x3=-61.5x1+x2+5x3=-21.5

Answers

Answer:

Sorry i do not know the answer but...

Step-by-step explanation:

can u sub to Pewdiepie on YT.. Plz? Brofist

An automatic car wash uses 5/8 gallon of soap on each car that is washed.Yesterday,the ,car wash used a total of 30 gallons of soap.How many cars washed yesterday?

Answers

Answer:

48

Step-by-step explanation:

divide 30 by 5/8

Answer: 48 cars washed yesterday.

Step-by-step explanation:

Given : An automatic car wash uses [tex]\dfrac{5}{8}[/tex] gallon of soap on each car that is washed.

Yesterday,the ,car wash used a total of 30 gallons of soap.

Then, the number of car washed yesterday is given by :-

[tex]30\div\dfrac{5}{8}\\\\=30\times\dfrac{8}{5}=48[/tex]

Hence, 48 cars washed yesterday.

If there are 42 boys and 56 girls in a room, fill out all of the possible ratios of boys to girls that could be made.

Answers

Final answer:

The simplest direct ratio of boys to girls in the room is 3:4, which means for every 3 boys, there are 4 girls. This is determined by finding the greatest common divisor of the two quantities. Other possible ratios such as 6:8, 9:12, 12:16, and 15:20 are multiples of this base ratio.

Explanation:

The question is asking for us to form all the possible ratios of boys to girls in the given situation. We are given that there are 42 boys and 56 girls. The simplest ratio of boys to girls can be determined by finding the greatest common divisor (GCD) of both numbers and then dividing both numbers by it. The GCD of 42 and 56 is 14, so if we divide both numbers by the GCD, we get the ratio of 3:4. This implies that for every 3 boys, there are 4 girls. However, other possible ratios could use multiple of these numbers. Therefore, the possible ratios of boys to girls in this scenario also include 6:8, 9:12, 12:16, 15:20, and so on.

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Anita earns 60 points every time she shops at a grocery store. She needs a total of 2,580 points to receive a free prize. So far, she has earned 480 points. How many more times will Anita have to shop at the grocery store in order to earn the additional points she needs for a free prize?

Answers

Answer:

35 times

Step-by-step explanation:

The points Anita has remaining for a prize is  2580 - 480 = 2100 points

Since each time she earns 60 points, to get 2100 points, she needs to go:

[tex]\frac{2100}{60}=35[/tex] times

She needs to go 35 times

Answer:

35 times

Step-by-step explanation:

Which expression is equivalent to 10k+17–7j-18-11k

A. -8jk-1
B. -7j-k-1
C. -7j+k+1
D. -8j-k

Answers

Answer:

B

Step-by-step explanation:

An equivalent expression is an expression which is equal to 10k + 17 - 7j - 18 - 11k. You can expand or simplify an expression to make an equivalent expression. Combine like terms to form a new equivalent expression. Like terms are terms which have the same base or variable.

10k + 17 - 7j - 18 - 11k

10k -11k + 17 - 18 - 7j                Move to group like terms together.

-k - 1 - 7j

This is the same solution as B written in a different order.

Answer:

BBBBBBBBBBBBBBBBBBBBBBB

Step-by-step explanation:)

What is the length of side BC of the triangle? Enter your answer in the box. units Triangle A B C with horizontal side B C. Vertex A lies above side B C. Angle B and angle C are marked congruent. The length of side A C is labeled as 2 x plus 7. The length of side A B is labeled as 4 x minus 7. The length of side B C is labeled as 4 x.

Answers

Answer:

The length of BC = 28 units

Step-by-step explanation:

* In triangle ABC

∵ Angles B and C are congruent

∴ m∠B = m∠C

* In any triangle if two angles are equal in measure, then the triangle is isosceles means the two sides which opposite to the congruent angles are equal in length

∴ AB = AC

∵ AB = 4x - 7

∵ AC = 2x + 7

∴ 4x - 7 = 2x + 7 ⇒ collect like terms

∴ 4x - 2x = 7 + 7

∴ 2x = 14 ⇒ divide both sides by 2

∴ x = 14 ÷ 2 = 7

* Now we can find the length of BC

∵ The length of BC = 4x ⇒ substitute the value of x

∴ The length of BC = 4 × 7 = 28 units

Final answer:

To find the length of side BC of the triangle, you can use the fact that angle B and angle C are congruent. Set up an inequality using the lengths of side AB and side AC, and solve for x. Substitute x with an appropriate value to find the length of side BC.

Explanation:

To find the length of side BC of the triangle, we can use the fact that angle B and angle C are congruent. Let's represent the length of side AB as 4x - 7 and the length of side AC as 2x + 7. Since the sum of the lengths of the two smaller sides of a triangle must be larger than the length of the largest side, we can set up an inequality: 4x - 7 + 2x + 7 > 4x. Simplifying this inequality, we get 6x > 0, which tells us that x must be greater than 0.

Since side BC is labeled as 4x, we can substitute x with any positive value greater than 0. For example, if we let x = 1, then side BC would have a length of 4(1) = 4 units.

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Find the equation of the line that is parallel to the line x + 5y = 10 and passes through the point (1, 3).

Answers

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Rearrange x + 5y = 10 into this form

Subtract x from both sides

5y = - x + 10 ( divide all terms by 5 )

y = - [tex]\frac{1}{5}[/tex] x +2 ← in slope- intercept form

with slope m = - [tex]\frac{1}{5}[/tex]

• Parallel lines have equal slopes, hence

y = - [tex]\frac{1}{5}[/tex] x + c ← is the partial equation of the parallel line

To find c substitute (1, 3) into the partial equation

3 = - [tex]\frac{1}{5}[/tex] + c ⇒ c = [tex]\frac{16}{5}[/tex]

y = - [tex]\frac{1}{5}[/tex] x + [tex]\frac{16}{5}[/tex] ← equation of parallel line

Answer:

A) y = − 1 /5 x +  16/ 5

Step-by-step explanation:

Identify the graph of x^2-8y=0 for theta=90º and write and equation of the translated or rotated graph in general form.

Answers

Answer:

The answer is parabola; (y')² - 8x' = 0 ⇒ answer (b)

Step-by-step explanation:

* At first lets talk about the general form of the conic equation

- Ax² + Bxy + Cy²  + Dx + Ey + F = 0

∵ B² - 4AC < 0 , if a conic exists, it will be either a circle or an ellipse.

∵ B² - 4AC = 0 , if a conic exists, it will be a parabola.

∵ B² - 4AC > 0 , if a conic exists, it will be a hyperbola.

* Now we will study our equation:

* x² - 8y = 0

∵ A = 1 , B = 0 , C =

∴ B² - 4AC = (0)² - 4(1)(0) = 0

∵ B² - 4AC = 0

∴ it will be a parabola.

∵ Ф = 90°

* The point (x , Y) will be (x' , y')

∵ x = x'cosФ - y'sinФ and y = x'sinФ + y'cosФ

∵ cos(90) = 0 and sin(90) = 1

∴ x = -y' and y = x'

* lets substitute x and y in the first equation

∴ (-y')² - 8(x') = 0

∴ (y')² - 8x' = 0

* We notice that the x' took the place of y and y' took the place of x

∴ The parabola rotated around the origin by 90°

∴ The equation of the parabola is (y')² - 8x' = 0

* The answer is parabola, with angle of rotation 90°

* The equation is (y')² - 8x' = 0

* Look to the graph

- The blue is x² - 8y = 0

- The green is (y')² - 8x' = 0

Answer:

the correct answer is D)

parabola

A single ball is taken at random from an urn containing 10 balls numbered 1 through 10. what is the probability of obtaining a ball whose number is less than 7?

Answers

To find probability you can use proportions

What i would do is 6/10 since it cant be 7 and then cross multiply it by 1/10.

This should get you 60%

Final answer:

The probability of selecting a ball numbered less than 7 from an urn containing balls numbered 1 to 10 is 6 favorable outcomes out of 10 possible outcomes, which simplifies to 3/5 or 0.6.

Explanation:

The question is asking about the probability of selecting a ball with a number less than 7 from an urn with balls numbered from 1 to 10. To determine this probability, we count how many balls have numbers less than 7 which are 1, 2, 3, 4, 5, and 6. That gives us 6 balls. Since all balls are equally likely to be chosen, and there are 10 balls in total, the probability of drawing one with a number less than 7 is the number of favorable outcomes divided by the total number of outcomes.

Here is the calculation:

Count the favorable outcomes (balls numbered less than 7): 6.Count the total number of outcomes (all balls): 10.Calculate the probability: Number of favorable outcomes / Total number of outcomes = 6/10.

Therefore, the probability of drawing a ball with a number less than 7 is 6/10 which simplifies to 3/5 or 0.6.

Write an equivalent exponential equation for the following three problems.

Answers

Answer with step-by-step explanation:

We are given three different expressions and we are to write an equivalent exponential equation for them.

We know that the standard form of a logarithmic expression is given by:

[tex]y = log_a ( x )[/tex] which is equivalent to the exponential form  [tex]x = a ^ y[/tex].

1. [tex] log _ {10} (0.1) = -1 [/tex] ---> [tex]10^{-1}=0.1[/tex]

2. [tex] log _ {3} 9 = 2 [/tex] ---> [tex]3^2=9[/tex]

3. [tex] log _ 5 ( \frac { 1 } { \sqrt { 5 } } ) = -\frac { 1 } { 2 } [/tex] ---> [tex]5^{-\frac{1}{2} }=\frac{1}{\sqrt{5} }[/tex]

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