Answer:
EF = 8.8 cm
Step-by-step explanation:
In the given right angled ΔDEF, DE is the hypotenuse while EF and DF are adjacent sides. So that applying the Pythagoras theorem, we have;
= 
+ 
= 
+ 
= + 
262.44 = + 184.96
= 262.44 - 184.96
= 77.48
EF = 
= 8.8023
EF = 8.8 cm
The length of side EF is 8.8 cm.
Answer:
y= 5
x= 2x+5=11 --- 2x=11-5--- 2x/6
x=3
Answer:
sorry i don't know the answer
Step-by-step explanation:
Answer:
Arrow from 0 to 4.7 and from 4.7 to 2.4
Step-by-step explanation:
4.7 is also 0+4.7
arrow from 0 to 4.7.
-2.3 from 4.7 is 4.7-2.3=2.4
arrow from 4.7 to 2.4.
Answer:
A, B, D
Step-by-step explanation:
A) -15(4x + 3) = -15 · 4x + (-15) · 3 = -60x - 45
B) 3(-20x - 15) = -60x -45
C) 5(12x - 9) = 60x - 45
D) -5(12x + 9) = -60x - 45
