Answer the question.Is the following expression undefined? 
Fill in the blank(s) with the appropriate word(s).
Yes
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Decide whether or not the given equation is an identity.cos(x + y) cos(x - y) = cos2x - sin2y
A. Yes B. No
Write the ratio as a fraction in simplest form.10 : 34
A. 
B. 
C. 
D. 
Solve the problem.Marcus is planting a section of garden with tomatoes and cucumbers. The available area of the section is 110 square feet. He wants the area planted with tomatoes to be more than 
of the area planted with cucumbers. Write a system of inequalities to describe the situation. Let 
to be planted in tomatoes and 
to be planted in cucumbers.
A. x + y ? 110 x > 20y x ? 0 y ? 0 B. x + y ? 110 x > 0.20y x ? 0 y ? 0 C. x + y = 110 x ? 0.20y x ? 0 y ? 0 D. x + y ? 110 x < 0.20y x ? 0 y ? 0
A pair of fair dice is cast. What is the probability that the sum of the numbers falling uppermost is less than 8, if it is known that one of the numbers is a 4? Give your answer in fraction form.
What will be an ideal response?