Answer: D. 9.2 m
The angle of elevation of a ladder leaning against a wall is 60º and the foot of the ladder is 4.6 m away from the wall. The length of the ladder is:____________A. 2.3 mB. 4.6 mC. 7.8 mD. 9.2 m
Step-by-step explanation:
Given;
Angle of elevation A= 60°
Distance from the foot of the ladder to the wall x= 4.6m
Length of the ladder = L
CosA = adjacent/hypothenus = x/L
L = x/cosA
L = 4.6/cos60°
L = 9.2m
The length of the ladder is 9.2m
Answer:
3x^2-15y-10x
Step-by-step explanation:
2x-12x-8y+7y+3x^2
-10x-15y+3x^2
3x^2-15y-10x
Answer:
15
Step-by-step explanation:
Answer:
C. X=6 or X= -9
First Explanation:
2x + 3 - 3 = 15 - 3 (subtract 3 from 3 and 15)
You should get 2x = 12
Then divide 2x by 2
Divide 12 by 2 which you should get
X = 6
Second Explanation:
2x + 3 - 3 = 15 - 3 (subtract 3 from 3 and 15)
You should get 2x = -18
Then divide 2x by 2
Divide -18 by 2 and you should get
X = -9
