This is the word problem, "Don and 3 friends share 2 sandwiches at lunch. Which equation can be used to find how much of a sandw
1 answer:
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Answer:
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Step-by-step explanation:
Answer:
4,800 acres
Step-by-step explanation:
The equation is
where is square miles and
is acres.
If Pam owns square miles of farmland, then
.
We need to substitute this value into the given equation to determine the acres she has.
This implies that,
We multiply to get,
Therefore Pam has 4,800 acres.
The correct answer is A
Answer:
Step-by-step explanation:
Given
← factorise numerator and denominator
2x² - 18 ( factor out 2 from each term )
= 2(x² - 9) ← difference of 2 squares
= 2(x - 3)(x + 3)
and
x² + 4x - 21 = (x + 7)(x - 3) , then
= ← cancel common factor (x - 3) on numerator/ denominator
=