(1 point) Find a⋅b if |a| = 2, |b| = 4, and the angle between a and b is −π7 radians.
1 answer:
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Question is Incomplete; Complete question is given below.
Which expression is equivalent to (3x-5y)+(x+2y)?
1. 4x-7y
2. 4x-3y
3. 4x+3y
4. 4x+7y
Answer:
2.
Step-by-step explanation:
Given:
We need to simplify the given expression;
Solution on simplifying the given expression we get;
First we will apply distributive property to remove the parenthesis we get;
Now Combining the like terms together we get;
Now adding and subtracting like terms we get;
Hence the equivalent expression for given expression is .
