Given the equation - 2x + 7y = -25 find the value of y if the ordered pair (2,y) is a solution.
A 19.5
B -3
C -19.5
D 3

y=-3

Step-by-step explanation:

-2x+7y=-25

put x=2 in the above equation

-2(2)+7y=-25

-4+7y=-25

adding 4 on both sides

-4+4+7y=-25+4

7y=-21

dividing 7 on both sides

7y/7=-21/7

y=-3

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

c - they will have the same distribution

step-by-step explanation:

this is the only one that could make sense. : )