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katen-ka-za [31]
3 years ago
14

Point J (-2,1) and point K (4,5) form line segment JK. For the point P that partitions JK in the ration 3:7, what is the y- coor

dinate of P?
Mathematics
2 answers:
Ainat [17]3 years ago
7 0
Y = 2.4 and the x = -0.3
amid [387]3 years ago
6 0

Answer:

2.2

Step-by-step explanation:

If  point P (Xp, Yp) divides a line segment from J (Xj, Yj) to K (Xk, Yk) in the ratio a:b, then the y-coordinate of P is

Yp = Yj + a/(a+b) * (Yk - Yj)

Here Yj = 1, Yk = 5, a = 3 and b = 7. Replacing

Yp = 1 + 3/(3+7) * (5 - 1)

Yp = 2.2

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Simplify: −4(−2)<br><br> A. −8<br> B. −6<br> C. −2<br> D. 8
mrs_skeptik [129]

Answer:

8

Step-by-step explanation:

−4(−2)

A negative times a negative is positive, 4*2 = 8

8

3 0
2 years ago
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A $25 credit and a $25 charge appear similar, yet they are very different.
lorasvet [3.4K]

Answer:

Similarities:

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  • The absolute value is the same ($25).

Differences:

  • The two transactions yield opposite results.

Step-by-step explanation:

A $25 credit results in a positive action in the account while the $25 charge is a negative action on the account.

3 0
3 years ago
Looking at this table of sample means, which value is the best estimate of the mean of the population?
Mandarinka [93]

Answer:

136

Step-by-step explanation:

4 0
3 years ago
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Find the value of x.
kirza4 [7]
Hey there :)

Here we need to use Trigonometry!

The given angle is 61°
The opposite to the angle is 22 
So x is the adjacent

The trigonometric ratio that uses opposite and adjacent is tan
( I have uploaded a picture to help you )


tan α = \frac{opposite}{adjacent}
tan 61 = \frac{22}{adj}
adj = \frac{22}{tan(61)}
adj ≈ 12.19 ≈ 12

x = 12


5 0
3 years ago
Find the error and then find the correct answer.​
qaws [65]

Answer:

  • w = 3

Step-by-step explanation:

<u>The correct one is given below:</u>

- 5 - 4w = - 17

<u>+5            + 5</u>

     -<u> 4</u>w = <u>-12</u>

      - 4      -4          

        w = 3

The error is 4w instead of - 4w

8 0
3 years ago
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