What is the result of adding these twice equations?

5x-y=6

-2x+y=8

Over which interval is the graph of f (x) = 1/2x^2 + 5x + 6 increasing? (-6.5, ∞) (-5, ∞) (-∞, - 5) (-∞, - 6.5)

What is the answer to the problem 8 1/3 x 3 3/4?

If AC=20, AE = 25, and AB=5, what is the length of AD

Find two numbers if their sum is 6.1 and their difference is 1.6

Watkins elementary school is painting the desk. Each desk takes 1/3 of a litter of paint. If the school buys 6 liters of paint, how many desks can they paint?

The Empire State Building is 1250 feet tall. At 3:00 pm, Pablo stands next to the building and has an 8-foot shadow. If he is 6 feet tall, how long is the Empire State Building's shadow at 3:00 pm? 1666.67 feet 1.67 feet 166.67 feet 16.67 feet

What is the maximum value of P = 24x + 30y, given the constraints on x and y listed below? x+y (less than or equal to) 5 x-y (greater than or equal to) - 1 x (greater than or equal to) 0 y (greater than or equal to) 0 120 132 138 150

The theater is sold 1456 tickets at the theater sold six times as many regular price tickets as it's all discount tickets

Maritza remembers her pin because it is the product of two consecutive prime numbers that is between 1000 and 1500 what is her pin

The triangle and the trapezoid have the same area. Base b (two) is twice the length of base b (one). What are the lengths of the bases of the trapezoid? Triangle: - b=21 cm & h=6cm. Trapezoid:-h=6cm