MATHEMATICS MIDDLE SCHOOL

Find the value of k so that the point A lies on the line given by equation.A(2, 2), kx+(k+1)y=2

Answers

Answer 1
Answer:

Answer:

k = 0

Step-by-step explanation:

Explanation:-

given straight line equation is k x+(k+1)y=2......(1)

The point A(2,2) lies on the equation is

substitute x = 2 and y=2

k(2) + (k+1)(2) =2

now simplify 2 k+2 k+2 = 2

subtracting '2' on both sides , we get solution is

4 k +2 -2 = 2-2

4 k =0

k = 0
Answer 2
Answer:

Answer:

k = 0

Step-by-step explanation:

kx + (k + 1)y = 2

2k + 2(k + 1) = 2

2k + 2k + 2 = 2

4k + 2 = 2

4k + 2 - 2 = 2 - 2

4k = 0

4k ÷ 4 = 0 ÷ 4

k = 0

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The voltage V of an audio speaker can be represented by V= 4 sqrt P ​, where P is the power of the speaker. An engineer wants to design a speaker with 361 watts of power. What will the voltage​ be?

Answers

The voltage of an audio speaker is 76 volts.

Given that

The voltage V of an audio speaker can be represented by \rm V = 4√(P).

Where P is the power of the speaker.

An engineer wants to design a speaker with 361 watts of power.

We have to determine

What will the voltage​ be of an audio speaker?

According to the question

The voltage V of an audio speaker can be represented by \rm V = 4√(P).

The power of the audio speaker = 361 watts

The voltage of an audio speaker is;

\rm V = 4√(P)\n\n\rm V = 4√(361)\n\nV = 4 * 19\n\nV = 76

Hence, the voltage of an audio speaker is 76 volts.

To know more about Power click the link given below.

brainly.com/question/26176670

Answer:

Voltage=76\ volts

Step-by-step explanation:

Given\ V=4√(P)\n\nwhere\ V\ is\ voltage\ and\ P\ is\ Power.

Here\ power\ is\ given\n\nP=361\ watts\n\nSubstitute\ P\ in\ the\ given\ equation\n\nV=4√(P)\n\nV=4√(361)\n\nV=4√(19* 19)\n\nV=4* 19\n\nV=76\ volts

Jackie wants to buy a digital camera that sells for $250. She has $120 saved. What percent of the cameras price has she saved?

Answers

Answer: 48%

Divide 120 by 250 and you get .48, making it 48%
to determine the percent of change, divide 120/250 =0.48 then divide the answer by 100 =48%
I hope this helped

What is the standard deviation of the data? Round to thenearest whole number.
O 65
O 75
O100 O130

Answers

Answer:

100

Step-by-step explanation:

Plz help (Will give brainliest for the best answer!!)The graph shows a line and two similar triangles.
(Image below)

Answers

Answer:

B. y = 2/3 x.

Step-by-step explanation:

The  slope of the line = rise / run = 2/3.

The equation is  y = 2/3 x.

Answer:

B. y = 2/3x.

This is your answer!

What is the exact area of a circle with a radius of 6 feet? 24π square feet 36π square feet 121π square feet 144π square feet

Answers

Answer:

36π

Step-by-step explanation:

The formula for the area of a circle is π times radius squared.

The radius in this case is 6, so squaring it gets us 36.

Multiplying this by π gets 36π.

Answer:

36 pi plz and thank you  mark brainliest good night.

Step-by-step explanation:

T/F every function is a relation

Answers

True
Every function is a relation, but not every relation is a function.

Hope this helps :)
Every function is a relation. However, not every relation is a function. In a function, there cannot be two lists that disagree on only the last element.

Hope this helps :)
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