Answer:
Answer is C. 3s + 9
Step-by-step explanation:
The perimeter is the sum of all 3 sides in a triangle
which is s+3 + s+3 + s+3
= 3s + 9
Answer:
495 students are at Lincoln Middle School
Step-by-step explanation:
450/?
450 = 90%
450*90% = 450 * 0.90 = 405
450- 405 = 45
450+45 = 495
Answer:
They shared GHC16.2
Step-by-step explanation:
Here, we want to get the amount shared
Let us call the amount x
Total ratio is 5 + 4 = 9
Kwame had GHC 9
Thus;
5/9 * x = 9
5 * x = 9 * 9
5x = 81
x = 81/5
x = GHC 16.2
Answer:
5x + 20 + (-20) = 5x
Step-by-step explanation:
Opposite of 20 is just -(20) which is -20.
5x + 20 + (-20) = 5x + 20 -20 = 5x
Answer:
Completing the square we get:
and factoring the term we get:
Step-by-step explanation:
We need to complete the square for the expression
For completing the square the expression would be of form
For given expression we have to add (2)^2 and subtract to make it complete the square.
Now, we have to factor the polynomial using formula
So,
Completing the square we get:
and factoring the term we get: