Answer & Step-by-step explanation:
2a - b : 2a + b = 1 : 2
2a - b = 1
- Elimination
2a + b = 2
-b - (b) = -1
-2b = -1
b = 0.5
---------------------------------------------------------------------------------
2a + b = 2 Substitution
2a + 0.5 = 2
2a = 1.5
a = 0.75
--------------------------------------------------------------------------------------
a:b
0.75 : 0.5
or
3/4 : 1/2
Hope this helps!!!
Answer:
Chart nº 2
Step-by-step explanation:
Just match each points you will see which one is actually on the diagram!
Answer:
Volume of a sphere = 4πr³/3
r=10
V = 4πx10³/3
=4000π/3
V= 1333.33π (in terms of pi)
or
V= 4188.79(Nearest Hundredth).
Answer:
Solution = (-8,-28)
Step-by-step explanation:
The length of the ladder nearest hundredth of a foot is 23 feet.
We have given that,
An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 20 feet up.
The ladder makes an angle of
the ground.
<h3>
What is the sin ratio?</h3>

Therefore we get,



Therefore, The length of the ladder nearest hundredth of a foot is 23 feet.
To learn more about the trigonometric ratio visit:
brainly.com/question/24349828
#SPJ1