Using elimination solve x+4y=-8 and x-4y=-8

Factor 9y^2 - (1+2y) ^2

What is the best approximation of the sine of 50°? Question 7 options: 1.1918 0.6428 -0.2624 0.7660

60% of the work is done in 17 minutes, 40% of the same work, when is done (in minutes) ?

At noon, the average temperature on the moon is 112oC. During the night, the average temperature drops 252oC. What is the average temperature on the moon's surface during the night?

Which system of equations has the same solution as the system below? 2x+2y=16 and 3x-y=4

Write the answer in simplest form: 3/5 + 2/7 a. 31/35 b. 5/12 c. 1/7 d. 6/35

The expanded form of - 10 (6-b)

What is the prime factorization of 256

What do you notice about the graph when it passesthrougha root off even multiplicity

Over how many degrees of latitude does the vertical sun migrate between the aphelion and the perihelion? over how many degrees of latitude does the vertical sun migrate between the aphelion and the perihelion? 23.5 94 47 180 0