Determine if (-3, 4) is a solution to the following system of equations:

3x + 2y = - 1

- 2x - 3y = - 5

Ricardo paid $15 for 4 pounds of almonds. At this price, how much would he pay for 10 pounds of almonds? You must write as a proportion before solving.

The central limit theorem can be used to analyze round-off error. Suppose that the round-off error is represented as a uniform random variable on [-1 2, 1 2 ].

Convert the following fractions into decimals

What is 4 (3x+1) but u have to distributive?

What is the least common multiple of 14 and 18?

1. Simplify. tan (x + 540) 2. Simplify the expression. sec (x - 360) 3. Simplify. 5cos (x) + 3cos (-x)

When looking at a rational function f of x equals the quantity x plus three times the quantity x minus two times the quantity x plus five all divided by the quantity x minus three times the quantity x plus two times the quantity x minus 5, Charles

recently 5/8 of the items sold at Debbies Sporting Good were baseball caps. at Sasha Sports 7/10 of the items sold were baseball caps which store sold a greater fraction of baseball caps?

You want to find the height of a tower used to transmit cellular phone calls. You stand 100 feet away from the tower and mesure the angle of elevation to be 40°. How high is the tower to the nearest foot

A helicopter leaves central airport and flies north at 180 mi/hr. Twenty minutes later a plane leaves the airport and follows the helicopter at 330mi/hr. How long does it take the plane to overtake the helicopter