Answer:
Step-by-step explanation:
Given the equation solved by Morgan, Dakota and Taylor expressed as 7x+5x+1=73, to get the value of x, the valid steps are as shown;
7x+5x+1=73
take the sum of 7x and 5x
12x+ 1 = 73
subtract 1 from both sides
12x+1-1 = 73-1
12x = 72
Divide both sides by 12
12x/12 = 72/12
x = 6
Based on the calculation above, the students with invalid first step is Dakota.
<em>Dakota added 5x with 1 to get 6x which is an invalid step because 1 is not attached to a variable x. A function cannot be added to a constant hence making his first step invalid.</em>
Answer:
Option number 3: 1,356.48 cm².
Answer:
A = 11.5 (less)
B. 55 (more)
C. 25 (more)
D. 17 (less)
Step-by-step explanation:
also if you dont mind giving me brainliest im trying to rank up, im 1 away. only if u dont mind
Answer:
A) 
Step-by-step explanation:
Recall the identity 
