Using a streak test on a mineral that is harder than 7 on Mohs scale would not be very useful True or False Fracture is the way minerals break along smooth planes of weakness. True or False

Cleavage is the way minerals break with uneven, jagged or rough surfaces True or False

The way light reflects off a mineral is called transparency. True or False

Minerals are the building blocks of rocks. True or False

Mohs scale measures a mineral’s streak. True or False

Color is the most reliable test for identifying a mineral. True or False

The second largest public utility in the nation is the sole provider of electricity in 32 counties of southern florida. to meet the monthly demand for electricity in these counties, which is given by the inverse demand function p = 1,200 – 4q, the utility company has set up two electric generating facilities: q1 kilowatts are produced at facility 1, and q2 kilowatts are produced at facility 2 (so q = q1 + q2). the costs of producing electricity at each facility are given by c1(q1) = 8,000 + 6q12 and c2(q2) = 6,000 + 3q22, respectively. determine the profit-maximizing amounts of electricity to produce at the two facilities, the optimal price, and the utility company’s profit