Answer:
the answer is A
Step-by-step explanation:
Answer:
7r³ - 3r² + 20r
Step-by-step explanation:
(9r³ + 5r² + 11r) + (-2r³ + 9r - 8r²)
You can get rid of the parentheses since there is nothing to distribute.
9r³ + 5r² + 11r - 2r³ + 9r - 8r²
Combine like factors.
7r³ - 3r² + 20r
Step-by-step explanation:

Answer:
3° and 87°
Step-by-step explanation:
<em>here's</em><em> your</em><em> </em><em>solution</em>
<em> </em><em>=</em><em>></em><em> </em> we know that measure of complementary angle is 90°
=>. one angle is. = x
=> other angle is .= (19x + 30)
=> so, x + 19x + 30° = 90°
=> 20x + 30° = 90°
=> 20x = 60°
=> x = 60/20
=> x = 3°
hence one angle is 3° and other is 87°
hope it helps
Answer:
The cost of an egg is $0.11
Step-by-step explanation:
Given : The cost of one dozen of eggs is $ 1.35
We have to find the cost of one egg.
We know, one dozen has 12 units
Thus, One dozen of eggs contain 12 eggs
So cost of 12 eggs is $ 1.35
So to find the cost of one egg divide the cost by 12.
We get,
1 egg = 
Thus, The cost of an egg is $0.11