Answer:
1. x= 20/3 or 6.6666 repeating
2. x=3
3. a=39
Step-by-step explanation:
1. subtract 25 by 5 to get 20, then divide 20 by 3 to get x
2. divide 7 by 21 to get x
3. add 8 to 31 to get a equals 39
Answer:
17 degrees
Step-by-step explanation:
A. Area of a square= side length squared
=> A= (x-3)^2
= x^2-6x+9
b. Area of rectangle= larger side length* smaller side length
=> A= x(x-5)
= x^2-5x
c. If both areas equal then expressions for areas equal as well.
x^2-5x= x^2-6x+9
=>x=9
Answer:
Step-by-step explanation:
big rectangle
3 * 4 = 12 mm²
little rectangle
1 * 6 = 6 mm²
triangle
[(6-3) * 4] : 2 = 6 mm²
sum the results
12 + 6 + 6 = 24mm²
The answer is 6.601, and therefore, the second option.
