Use the order of operations to simplify the expression.(-2 - 7)(-2 + 5) - 22
A. -23
B. -31
C. 3
D. 4
Answer: B
Mathematics
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Solve the problem.Find the angle between the planes 3x + 9y + 9z = 3 and 5x + 9y + 3z = 3
A. 53 B. 104 C. 167 D. 90
Mathematics
Factor the trinomial completely, or state that the trinomial is prime.-2x2 - 5x + 12
A. -(2x + 3)(x - 4) B. prime C. -(2x + 4)(x - 3) D. -(2x - 3)(x + 4)
Mathematics
Use the RSTC Approach to solve the application.40% of a solution has been used in an experiment. If 64 milliliters (mL) has been used, how much solution was present at the start of the experiment?
A. 256 mL B. 160 mL C. 25.6 mL D. 62.5 mL
Mathematics
Decide whether the expression is or is not an identity.
= 1 - cos x
A. Identity B. Not an identity
Mathematics