Answer:
12
Step-by-step explanation:
Use the definition of an additive inverse.
x + (-12) = 0
Add 12 on both sides.
x = 12
Im sorry but i only know part b
10/12 - 3/8
Find the lcd which is 24
10/12 = 20/24
3/8 = 9/24
20/24 - 9/24 = 11/24
The sum of angles of any triangle is always 180 degrees
Now here
Angle A = 25° , Angle C = 90°
Now A+B+C= 180
25° +B + 90°=180°
115° +B = 180°
Subtract 115° from both sides
115°-115° +B = 180°-115°
B=65°
Angle B = 65 degrees
Answer:
Step-by-step explanation:
To simplify the expression , we can use the first law of the law of indices which states that the exponent is added together when multiplying numbers with the same base. Eg: .
Hope this helps :)