Answer:
10.99
Step-by-step explanation:
where you see tan20 the 20 has a degree sign on top
a box of 100 nails weighs 1 5/8 pounds. mark used 3 1/3 boxes of naila to build a 2 story tree house. how many pounds of nails d
1 answer:
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One way is that you can just factor it out: (x+2)(x+2)(x+2)
For the first pair, you get
.
Then do
*
That will be
So the answer is 6
For the first pair, you get
Then do
That will be
So the answer is 6
Answer:
(3x + 1)²
Step-by-step explanation:
Given
9x² + 6x + 1 ← is a perfect square of the form
(ax + b)² = a²x² + 2abx + b²
Compare like terms to find a and b
a²x² = 9x² ⇒ a² = 9 ⇒ a = = 3
b² = 1 ⇒ b = = 1
and 2ab = 2 × 3 × 1 = 6
Thus
9x² + 6x + 1 = (3x + 1)²