PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER!! Determine the Value of K in the diagram ( secant lines to circles).

PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER!! Determine The Value

Answers

Answer 1

Answer:

k = 10

Step-by-step explanation:

According to intersecting secants theorem we have the following equation:

3x*(3x + 5x) = 2x*(2x + kx)

Solve it for k:

3x*8x = 4x² + 2kx²24x² = (4 + 2k)x²24 = 4 + 2k20 = 2kk = 10

Related Questions

Evaluate the expression for x = 10 . 3x + 4(x - 8) - 14

Answers

Answer:

[tex]{ \tt{3x + 4(x - 8) - 14}} \\ = { \tt{3x + 4x - 32 - 14}} \\ = { \tt{7x + 46}}[/tex]

Find the greatest common factor of 15 x²y³ and -18 x³yz.
_x--y--​

Answers

Answer:

3x^2y

Step-by-step explanation:

Its common factor it this ^ this symbol represent power

Kevin jogged 2 1/2 miles in 1/3 of an hour. What was his average rate in speed in miles per hour? Show your work. ​

Answers

Answer:

7.5 miles per hour

Step-by-step explanation:

Average Speed = Total Distance/Total Time

[tex]\frac{2 \frac{1}{2} }{\frac{1}{3} }[/tex]= 7.5 miles/hour

Answer from Gauthmath

What is the greatest common factor of the polynomial below?
12x2-9x
A. 3x2
B. 3x
C. 4x2
D. 4x

Answers

Answer:

3x

Step-by-step explanation:

factoring it we get

3x(4x-3)

Alyssa invested $180 in an account paying an interest rate of 8 and 3/8 % compounded annually. Lily invested $180 in an account paying an interest rate of 8 and 1/8 % compounded continuously. To the nearest hundredth of a year, how much longer would it take for Alyssa's money to triple than for Lily's money to triple?

Answers

Answer:

Step-by-step explanation:

Please check out the attachments for the solution :)

flor ha colocado ¹1/4 kg de papa sobre una balanza . si un cliente le quiere comprar 2 kg de papa , ¿cuantos kilogramos (kg) de papa debe agregar flor sobre l balanza para cumplir con el pedido?

a)3/4 kg de papa

b)¹ 3/4 kg de papa

c1/4 kg de papa

d)¹ 1/4

RAPIDO POR FAVOR E UN EXAMEN SALVEMME LA VIDA

Answers

Answer:

a). 3/4 kg de papa

Step-by-step explanation:

Given that,

Patata colocada en balanza = 1 1/4 Kg

Flor de papa total quiere = 2 kg

Encontrar,

Se agregará más peso en la báscula para que sea de 2 kg =?

Procedimiento:

Peso requerido para ser colocado = Peso total - peso colocado

= 2 - [tex]1\frac{1}{4}[/tex]

= 2 - 5/4

= (8 - 5)/4

= 3/4 kg

Solve the equation x^2 - 4x + 6 = 9 by completing the square.

Answers

Hello!

x² - 4x + 6 = 9 <=>

<=> x² - 4x + 6 - 9 = 0 <=>

<=> x² - 4x - 3 = 0 <=>

<=> x = -(-4)±√(-4)²-4×1×(-3)/2×1 <=>

<=> x = 4±√16+12/2 <=>

<=> x = 4±√28/2 <=>

<=> x = 4±2√7/2 =>

=> x = 4+2√7/2 and x = 4-2√7/2 =>

=> x = 2+√7 and x = 2-√7

The equation has two solutions.

Good luck! :)

Answer:  [tex]x= 2 + \sqrt{7}\\ or \\ x= 2 - \sqrt{7}[/tex]

how i got it?

[tex]x^2 - 4x + 6 = 9[/tex]

*subtract 9 on both sides*

[tex]x^2 - 4x + 6 - 9 = 0[/tex]  ( which turns to) [tex]x^2 - 4x - 3=0[/tex]

a=1 or x, b=-4, c=-3

Step 2: Use quadratic formula with a=1, b=-4, c=-3.

[tex]x= - (-4) + or - \sqrt{-4}x^{2} -4(1)(-3) / 2(1)[/tex]

which turns to: x= 4 + or - √28 divided by 2

the final answer should be [tex]x= 2 + \sqrt{7}\\ or \\ x= 2 - \sqrt{7}[/tex]

Which is the pair of congruent right angles?

Answers

Answer:

2nd

2nd option <cba=<dea

Answer:

B  

as DE=CB

    <C=<D

    <B= <E

Therefore it is congruent

Have a nice day!

What is the measure of

Answers

60° because it's an equilateral triangle

− 10x− 6y= 12
4x+ 7y=− 14

Answers

Answer:

x = 0, y = -2

Step-by-step explanation:

[tex]\left \{ {{-10x-6y=12} \atop {4x+7y=-14}} \right. = \left \{ {{-10x=12+6y} \atop {4x+7y=-14}} \right. = \left \{ {{x=\frac{12+6y}{-10} }(1) \atop {4x+7y=-14}} \right[/tex]

Replace x from formula (1) to formula (2), we got:

[tex]4*\frac{12+6x}{-10}=-14 <=> \frac{-2}{5}(12+6y)+7y=-14 <=> \frac{-24}{5} + \frac{-12}{5}y+7y=-14 <=> \frac{23}{5}y = \frac{-46}{5} <=> y = -2\\=> x= \frac{12+6*(-2)}{-10} = 0[/tex]

y is directly proportional to the cube of x. If x is tripled, what happens to the value of y?

Answers

Answer:

it becomes 27 times larger

Step-by-step explanation:

y = k [tex]x^{3}[/tex]

vs.

y = k[tex](3x)^{3}[/tex]

y = k 27 x^3

Ms. Jones wants to paint her kitchen's wall. She knows that 2 gallons of paint cover 80 square feet, and each gallon costs $20.80. If the area of the kitchen is 320 square feet, how much will she pay to buy the gallons of paint needed? Round your answer to the nearest cent (HUNDRED TH), and write ONLY a number (NO $)​

Answers

She will need 4 two gallons and it will be 83.2 in total

help with geometry!!!!!

Answers

Answer:

NO

Step-by-step explanation:

To find the length of AB

AB = sqrt( (x2-x1)^2 + (y2-y1)^2)

      = sqrt ( ( 2 - -1)^2+ ( -1 -3)^2)

      = sqrt( 3^2 + (-4)^2)

      = sqrt(9+16)

    = sqrt(25)

    = 5

To find the length of AC

AC = sqrt( (x2-x1)^2 + (y2-y1)^2)

      = sqrt ( ( -4 - -1)^2+ ( -1 -3)^2)

      = sqrt( ( -3)^2 + (-4)^2)

      = sqrt(9+16)

    = sqrt(25)

    = 5

To find the length of BC

BC = sqrt( (x2-x1)^2 + (y2-y1)^2)

      = sqrt ( ( -4-2)^2+ ( -1 --1)^2)

      = sqrt( ( -6)^2 + (0)^2)

      = sqrt(36)

    = 6

    This is not an equilateral triangle since BC is not equal to AB = AC

Answer:

AB = AC = 5 units BC = 6 units No it is not a equilateral triangle

Step-by-step explanation:

Some coordinates of a triangle is given to us. And we need to find the length of AB , BC and AC . The given coordinates are ,

[tex]\rm\implies Coordinates = A(-1,3) , B(2,-1) \ and \ C(-4,-1) [/tex]

We can use the Distance Formula to find the length of sides of the triangle .

Finding length of AB :-

[tex]\rm\implies Distance =\sqrt{ ( x_2-x_1)^2+(y_2-y_1)^2} \\\\\rm\implies \overline{AB}= \sqrt{ (-1-2)^2+(-1-3)^2} \\\\\rm\implies \overline{AB}= \sqrt{ (-3)^2+(-4)^2} \\\\\rm\implies \overline{AB}= \sqrt{ 9 + 16} \\\\\rm\implies \overline{AB}= \sqrt{25} \\\\\rm\implies\boxed{\red{\rm \overline{AB}= 5 \ units}}[/tex]

Finding length of AC :-

[tex]\rm\implies Distance =\sqrt{ ( x_2-x_1)^2+(y_2-y_1)^2} \\\\\rm\implies \overline{AC}= \sqrt{ (-1+4)^2+(-1-3)^2 }\\\\\rm\implies \overline{AC}= \sqrt{ (-3)^2+(-4)^2} \\\\\rm\implies \overline{AC}= \sqrt{ 9 + 16} \\\\\rm\implies \overline{AC}= \sqrt{25} \\\\\rm\implies\boxed{\red{\rm \overline{AC}= 5 \ units}}[/tex]

Finding length of BC :-

[tex]\rm\implies Distance =\sqrt{ ( x_2-x_1)^2+(y_2-y_1)^2} \\\\\rm\implies \overline{BC}= \sqrt{ (-4-2)^2+(-1-1)^2} \\\\\rm\implies \overline{BC}= \sqrt{ 6^2+0^2} \\\\\rm\implies \overline{BC}= \sqrt{ 36+0} \\\\\rm\implies \overline{BC}= \sqrt{36} \\\\\rm\implies\boxed{\red{\rm \overline{BC}= 6 \ units}}[/tex]

Is it a Equilateral triangle ?

No the given triangle is not a equilateral triangle since the measure of all sides is not same.

Which shows the numbers One-tenth, 0.9, Three-tenths in order from least to greatest?

Which equation can be used to find one multiple of 16?

Answers

Answer:

Simultaneously equation

Please answer only questions 18 and 20 please help me ​

Answers

Answer:

18 is 64 days

20 is 1 37/128

Step-by-step explanation:

I looked it up if I am being completely honest with you but it should be correct

You do 8 x 7 answer divided by 7 answer times by 8 for 18

Hanz’s class had a goal to collect 250 cans of food for the school food drive. They collected 290 cans. What percent of their goal did they achieve?

Answers

Given:

Goal = 250 cans

Number of collected cans = 290

To find:

The percent of their goal they achieved.

Solution:

The percent of their goal they achieved is:

[tex]\text{Required percent}=\dfrac{\text{Number of collected cans}}{\text{Goal}}\times 100[/tex]

[tex]\text{Required percent}=\dfrac{290}{250}\times 100[/tex]

[tex]\text{Required percent}=\dfrac{29}{25}\times 100[/tex]

[tex]\text{Required percent}=29\times 4[/tex]

[tex]\text{Required percent}=116[/tex]

Therefore, they achieved 116% of their goal.

15. Mary was given data comparing students’ mark in math class and the number of classes missed. She plotted the data on the graph below and drew a line of best fit. Do you agree with Mary’s drawing of the line of best fit? Justify your answer. PLEASE HELP ITS RLLY IMPORTANT

Answers

Answer:

I dont know

Step by Step Explanation:

nobodys helping me out 0.1

Find the area of the circle x^2+y^2=16 by the method of intregration

Answers

Answer:

Hello,

[tex]16\pi[/tex]

Step-by-step explanation:

[tex]I=\dfrac{Area}{4} =\int\limits^4_0 {\sqrt{16-x^2} } \, dx \\\\Let\ say\ x=4*sin(t),\ dx=4*cos(t) dt\\\\\displaystyle I=\int\limits^\frac{\pi }{2} _0 {4*\sqrt{1-sin^2(t)} }*4*cos(t) \, dt \\\\=16*\int\limits^\frac{\pi }{2} _0 {cos^2(t)} \, dt \\\\=16*\int\limits^\frac{\pi }{2} _0 {\frac{1-cos(2t)}{2}} \, dt \\\\=8*[t]^\frac{\pi }{2} _0-[\frac{sin(2t)}{2} ]^\frac{\pi }{2} _0\\\\=4\pi -0\\\\=4\pi\\\\\boxed{Area=4*I=16\pi}\\[/tex]

what is the volume of the cylinder?
write you answer in terms of pi​

Answers

The volume of a cylinder is V=πr^2*h.

The volume of this cylinder is V=π(7)^2*12, which it V=588π.

Which of the equations below could be the equation of this parabola?
O A. y = -1/2 x2
O B. y = 1/2 x2
O C. y= 1/2 y2
O D. x= -1/2 y2

Answers

After answering the question provided, we can predict that the result will be as  The position and direction of the relevant parabola will determine the appropriate response.

What is equation?

A mathematical equation is a process that links two statements and indicates equality using the equals sign (=). A mathematical statement that proves the equality of two mathematical expressions is known as an equation in algebra. For instance, the equal sign separates the numbers 3x + 5 and 14 in the equation 3x + 5 = 14. A mathematical formula may be used to understand the link between the two sentences that are written on opposite sides of a letter. Frequently, the logo and the particular software are identical. like in 2x - 4 = 2, for example.

It is hard to tell which equation may be the equation of the parabola without further details on the parabola's orientation and location.

The equations in options A and B are parabolas with upward or downward openings and a vertex at the origin. The equation of a parabola with its vertex at the origin and an opening to the right or left is in Option C. The equation of a parabola with an upwards or downwards opening and its vertex at the point is in Option D. (0,0).

The position and direction of the relevant parabola will determine the appropriate response.

To know more about equation visit:

https://brainly.com/question/649785

#SPJ1

Which graph represents an exponential function?

Answers

Answer: where's the pic?

Step-by-step explanation:

Help me pleaseeeee!!!!!!!!

Answers

Answer:

140

Step-by-step explanation:

Angles 1, 2 and 3 are in a straight line,

Straight line has 180 degrees,

∠1 = ∠3 = 20

∠1 + ∠2 + ∠3 = 180

20 + ∠2 + 20 = 180

∠2 + 40 = 180

∠2 = 180 - 40

∠2 = 140

Susan's graduation picnic will cost $78 if it has 26 attendees. At most how many attendees can there be if Susan budgets a total of $81 for her graduation picnic?

Answers

Answer:

27 attendees

Step-by-step explanation:

First, we can find the cost per attendee.

78÷26

3

So $3 per attendee.

Then divide 81 by 3 to find the number of possible attendees.

81÷3=27

I hope this helps!

Find the slope of the line for each pair of points (-17, -5) (15, -13)

Answers

(-17,-5) (15,-13)
-13 - -5/ 15 - -17
-8/32
The slope is -4

What is the quotient ? 7-6 72 1 o 1 o 1 72 O 73 0 78​

Answers

Answer:

A. 1/7^8

Step-by-step explanation:

Given

(7^-6) / 7²

Both numerator and denominator has the same base, so just one of the bases will be picked

Division sign changes to minus in indices

(7^-6) / 7²

= 7 ^(-6-2)

= 7^-8

= 1/7^8

Note: a^-b

= 1/a^b

The same rule is used at the last step of the calculation

Answer is

A. 1/7^8

The circumference of a circle is 2π m. Find its diameter, in meters.

Answers

Answer:

The diameter is 2 meters

Step-by-step explanation:

The circumference of a circle is given by

C = pi *d

2 pi = pi *d

Divide each side by pi

2 = d

The diameter is 2 meters

Which equations have the same value of x as StartFraction 5 over 6 EndFraction x + two-thirds = negative 9?

Answers

-8 is the answer I just took this quiz bc the radar is father always there for it’s -8

which one of these numbers is a whole number?

Answers

Answer:

0 is the whole number

Step-by-step explanation:

negative numbers are negative so they can't be counted as whole numbers which means -5 isn't an option.

Whole numbers can't be stated in fraction form so 2/3 is not applicable here.

32.8 is also not the answer as decimals are part of a whole number, not actual whole numbers.

so, 0, is the only right answer here

Find the value of x.

Answers

Ok the answer is 7524482819484

im giving brainliest pls heelp



Maria bought a stock for x dollars, and she sold it at a profit of 20 %. Write a mathematical expression for the selling price.
120x
1.2 x
0.12x
12x

Answers

Answer:

No entendí lo siento

Step-by-step explanation:

Jummm

B)1.2 x is a mathematical expression for the selling price.

What is the selling price?

The selling price is the charge that a purchaser will pay to purchase a product or a commodity. It's miles a price above the value price and consists of a percentage of income additionally. Cost price is the price at which the seller purchases the product or the commodity.

Maria bought a stock for x dollars.

Cost of stocks = x dollars.

sold it at a profit of 20 %.

The selling price is given below.

= x + 20%

= 1.2x

Learn more about the selling price here: https://brainly.com/question/1153322

#SPJ2

Other Questions
Explain the rate of drainage of the soils. When you type in a cell it is 6). One unique element of the Irish migration was...A. the unwillingness of the Irish to work as manual laborers. B. the number of single women who made the journey. C. the lack of a cohesive ethnic identity. D. None of the answers provided are true. 4x + 7 + 4I need helppp pls 1. Paulina wants to find the width, AB, of a river. She walks along the edge of the river 200 ft and marks point C. Then she walks 60 ft further and marks point D. She turns 90 and walks until her location, point A, and point C are collinear. She marks point E at this location, as shown. (a) Can Paulina conclude that ABC and EDC are similar? Why or why not? (b) Suppose DE = 40 ft. Calculate the width of the river, AB. Show all your work and round answer to the nearest tenth. Answer What kinds of valuable activities does one engage in when creating or examining works of art?Name two of the decisionsyouface. willl mark brainly What is the most frequently used measure of economic development?A.total GDPB.literacy rateC.income tax rateD.GDP per capita will mark brainly How did Mao Zedong affect the political landscape of China?A) he formed alliances with Japan and Korea in an effort to spread Marxist communism.B) he overthrew the existing authoritarian leadership and created a fascist dictatorship. C) He revived traditional Chinese government based on principles of Confucianism.D) he established a rural form of communism as an alternative to Soviet Leninism. On what sum of money will the compound interest for 2 years at 8% p.a. will be 7448? The cost of a pen is three times and Rs 4 more than the cost of a pencil. If three pencils and two pens cost Rs 71, find the cost of each item. Help pls will give brainliest Find the missing numerator: 3 1/3 = x/6 2x=10 what is xwhat is x ITS IN THE PICTURE !!!!!! three less than twice the square of a number is 47. Help pls ?? I really dont know what to do 1. Ten times the sum of -270 and a number gives -20. 8. If 30 cents out of every 1 dollar goes to taxes and the rest is net income, what's theratio of taxes to net income?dA. 30 : 7B. 3:10C. 30 : 1D. 3:7 The domain of a composite function (fog)(x) is the set of those inputs x in the domain of g for which g(x) is in the domain of f.True False Simplify x + (7+14x)