Answer:
B. 21
Step-by-step explanation:
Given that we have the change in temperature over 7 hours and we are looking for the change over 1 hour, we can divide the total change in temperature by 7. Thus, the change in temperature would be 
.
Additionally, this can be solved by equations:
By using two different methods, we can determine that the change each hour was equal to 42/7 C° per hour.
Answer:
its an equivalent equation
Step-by-step explanation:
are algebraic equations that have identical solutions or roots. Adding or subtracting the same number or expression to both sides of an equation produces an equivalent equation. Multiplying or dividing both sides of an equation by the same non-zero number produces an equivalent equation.
Answer:
2167 meters squared
Step-by-step explanation:
First find the area of the square ice skating rink: 47^2 = 2209.
Then, find the area of the triangle without ice by using 1/2bh: (12/2)(7)=42.
Simply subtract the triangle's area from the squares for the final answer of 2167 meters squared.
Given that AB = 16, BC = 5, and CD = 3, which is the length of secant DE?It might be useful to see ...
