What is ((-1²-3)²+2•8
1 answer:
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For these equations, we are going to use the slope formula, as defined below ( is slope and
and
are coordinate points):
We can simply "plug in" the coordinates we are given:
Our answers are:
Answer:
21 birds and 7 dogs
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Step-by-step explanation:
Represent Birds with B and Dogs with D
----- Total Animals
A bird has 2 legs and a dog has 4, so:
---- Legs
Required
Solve for D and B
Make D the subject in the first equation
Substitute 28 - B for D in the second
Collect Like Terms
Solve for B
Recall that:
<em>Hence, there are 21 birds and 7 dogs</em>