Answer:0=0
Step-by-step explanation:
1. Distribute
3(4+3)−2=12+7
12+9−2=12+7
2.Subtract the numbers
12+9−2=12+7
12+7=12+7
3.Subtract 7 from both sides of the equation
12+7=12+7
12+7−7=12+7−7
4.Simplify
-Subtract the number
12+7−7=12+7−7
12=12+7−7
12=12+7−7
12=12
5.Subtract 12x from both sides of the equation
12=12
12−12=12−12
6.Simplify
-Combine like terms
12−12=12−12
0=12−12
0=12−12
This took forever TvT
Answer:
2
Step-by-step explanation:
Answer:
b.
Step-by-step explanation:
They will be forming a right triangle.
long leg is the height of Lyra. 22 meters high from the entrance.
short leg is the distance of Donna. 50 meters from the entrance.
We need to solve for the hypotenuse or the range of communication.
a² + b² = c²
22² + 50² = c²
484 + 2500 = c²
2,984 = c²
√2,984 = √c²
54.63 = c
The range of communication for the two radios is 55 meters.
a) So we know the formula of finding the circumference: 2*pi*R.
Assuming we make pi = 3.14: 2 * 3.14 * 7 = 43.96.
b) We also know the formula of finding the area: pi * r^2.
3.14 * 7^2. Using PEMDAS:
3.14 * 49 = 153.86