Answer:

Step-by-step explanation:
Given:

Required:
Solve for y (make y the subject of the formula)
SOLUTION:

Square both sides


Subtract both sides by x

Divide both sides by 2

Answer:
x=19, DE=84, EF=36
Step-by-step explanation:
Since the total value of DF is 120, DE and EF must add up to 120. Therefore:
4x+8+2x-2=120
Combine like terms:
6x+6=120
Divide both sides by 6:
x+1=20
Subtract 1 from both sides:
x=19
This means that DE is 4(19)+8=84, and EF is 2(19)-2=36.
Hope this helps!
23.67>23.42
Step-by-step explanation:
imagine the > or < is an alligator
the alligator wants to eat the bigger number
23.67 is bigger than 23.42
so the alligator wants to eat 23.67
the number before the decimal might be the same but look at the number after the decimal
0.67 and 0.42
0.67 is bigger than 0.42
Answer:
The rock's height is always increasing from 0 to 3 seconds. (0,3)
Step-by-step explanation:
The graph rises when x = 0 up until it reaches the vertex, aka where x=3 is.
Answer:
47
Step-by-step explanation:
Remember triangle always equal to 180
180=70+4x-5+6x-15
x=13
4(13)-5
47
Angle A is 47