Answer:
14
Step-by-step explanation:
-21+-13+20=14
This is true because when subtracting negatives by negatives you pretty much add them and then when you add a positive to a negative you are technically removing the negative by the amount you are adding.
In short its kind of like using inverse operation in a way.
Hope this helps and have a nice day
Also may I please have a brainliest!!!
Answer:
Simplify.
(2x2 - 5x + 3) - (-x2 + 4x - 5)
the answer is -7x +12
Step-by-step explanation:
the question can be solved using BODMAS law
from Simplify.
(2x2 - 5x + 3) - (-x2 + 4x - 5)
opening the bracket
4-5x + 3 + 2x - 4x + 5
collecting the like terms we have;
12-7x
therfore ; -7x + 12
The formula to find the surface area depends on the shape. However, you can find the area of each face of the shape, then add them all together. This concept of surface area can be used in the real world, and is everyday. When drawing blueprints or building a house, architects need to calculate surface area.
Assuming you mean't 5/6r = 4 3/5,
56r=4 3/5
56r=2 3/5
(6/5)*(5/6r)=(6/5)*(23/5)
r = 138/25
Okay. So the steps I took was:
Simplifying both sides of the given equation.
Then multiplify both sides by 6/5
Then I got my original solution.
C:
