Answer:
A, C, D are true
Step-by-step explanation:
The Law of Cosines tells you that D is true. The equation of D is a rearrangement of the usual presentation of the Law of Cosines.
The given relationship between the squares of the side lengths tells you that C is true. (The relation would be "equals" if the triangle were a right triangle.)
D being true, together with the given condition, tells you that 2ab·cos(θ) must be less than zero. Since the side lengths are positive, the cosine must be less than zero, making statement A true. (When A is true, B cannot be true.)
Answer:
What are the choices and what grade level going to 4th-12th
Step-by-step explanation:
<span>Write
an algebraic expression for three fourths the square of b
=> Algebraic expression is the expression that shows both integers,
variables, symbols and operations like addition, subtraction, division, and
multiplication.
=> three fourth is a fraction which is equals to 3/4
=> square of b is an exponent which is equals to b<span>2
</span>=> thus, the algebraic expression of three fourths the square of b is
equals to:
=> ¾ x b2 or 3b2 / 4</span>