Find the exact values of sin θ/(2 ) and cos θ/2 for sin θ= 2/5 on the interval 0° ≤ θ ≤ 90°

Answer soon(fast) 15 pts-brainliest? for right answer with small explination a restaurant catered a party for 40 people. a child’s dinner (c) cost $11 and an adult’s dinner (a) cost $20. the total cost of the dinner was $728. how many children and adults were at the party? use the table to guess and check.(i couldn't get the graph onto the question)                                8 children and 32 adults9 children and 31 adults10 children and 30 adults12 children and 28 adults

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Find the roots of the equation below. x^2 - 6 + 9 = 0