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katen-ka-za [31]
4 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]4 years ago
7 0
Y = 2.4 and the x = -0.3
amid [387]4 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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De segunda a sexta-feira, um padeiro usa 1 ¼ de sacos de farinha ao assar bolos. O padeiro usará mais ou menos de 5 sacos de far
ArbitrLikvidat [17]

Answer:

mais de 5 sacos      6 sacos y 1/4

Step-by-step explanation:

1 1/4 = 5/4

De la segunda  feira a la sexta son 5 feiras

5/4 * 5 = 25/4

25/4 = 6  1/4

3 0
3 years ago
The measure of angle A is 5 times the measure of its supplement.
Pani-rosa [81]
Let the angle a be 5x
The supplement be x
According to the question 
X+5x=180
6x=180
X=30
5x=5×30=150
The measure of angle a 150
Angle of supplement 30
Hope this helps!!
8 0
3 years ago
Please help with this problem
Alecsey [184]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
Name the line and plane shown in the diagram. A.AB and plane ABD B.BA and plane DC C.AC and plane ABD D.AB and plane DA
elena-14-01-66 [18.8K]

Answer: The line is AB and the plane is ABD, the first option is the correct one.

Step-by-step explanation:

Ok, first some definitions.

A line is any line that crosses two colinear points. Particularly, you can see in the graph that the line crosses through A and B, so the line is AB.

A plane needs 3 non-colinear points (if the points where colinear, then the points may define a line). Other definition of plane is "a line and a point that is not in the line"

So, if our line is AB, then the possible planes are:

ABC and ABD.

then the correct option is:

Line AB and plane ABD, so the correct option is the first one.

6 0
3 years ago
A submarine is at the surface of the ocean. It begins its descent at a rate of 100 feet per minute. Write a linear model in the
Bingel [31]

Answer:

d(t) = -100t

Step-by-step explanation:

The general expression for the linear model is:

d(t)=mt+b

Since the submarine already starts at sea level, b=0:

d(t)=mt

The constant "m" is the rate at which the submarine descends in feet per minute. Considering depth as a negative quantity, m=-100

d(t)=-100t

The linear model that represents the depth of the submarine relative to sea level, in feet, after t minutes is d(t) = -100t.

5 0
3 years ago
Read 2 more answers
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