Write an expression equivalent to (6x + 4y) – 2y by combining like terms. enter the numbers in the boxes.

6x + 2y

Step-by-step explanation:

remove the bracket and collect like terms

6x + 4y - 2y = 6x + 2y

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

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,