It looks like you want to evaluate
.. 8j -k +14
for (j, k) = (0.25, 1).
Put the numbers where the letters are. If you cannot do the math, let your calculator do it.
.. 8*0.25 -1 +14
.. = 2 -1 +14
.. = 1 +14
.. = 15
The value of the expression is 15 at (j, k) = (0.25, 1).
11) 2x+6y-3; x=5,y=4
the question is asking to evaluate for y when x=5 and evaluate for x when y=4,
2x+6y-3
2x+6y=3
2(5)+6y=3
10+6y=3
6y=3-10
y=-7/6 when x=5
2x+6(4)=3
2x+24=3
2x=3-24
x=-21/2 when y=4
12)
Input Output
N 4(n+3)
12 4(12+3) = 4(15)=60
14 4(14+3)=4(17)=68
18 4(18+3)=4(21)=84
25 4(25+3)=4(28)=112
13)8x+y-10; x=4, y=50
8x+y=10
8(4)+y=10
32+y=10
y=10-32
y=-22 when x=4
8x+50=10
8x=10-50
8x=-40
x=-40/8
×=-5/1=-5 when y=50
14) b is correct
15)c is correct
16) c is correct
If you need explanations on these questions, message me.
Answer:
hm
Step-by-step explanation:
yes i think so :)
Since, the coordinates of the midpoint of line RS are M
.
The coordinates of endpoint R are (-2,10)
We have to determine the coordinates of endpoint S.
The midpoint of the line segment joining the points 
and 
is given by the formula 
.
Here, The endpoint R is (-2,10) So, 
Let the endpoint S be 
The midpoint coordinate M is .
So, 
Now, 
So, the other endpoint S is (8,0).
Answer: 2700
Step-by-step explanation:
