A right triangle is declined as having has an angle measure six less than negative two times a number, another angle measure that is 3 less than negative one-fouth the negative number, and a right angle.

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Does the point (1, sqrt 7) lie on circle shown.

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11