Solve the system of linear equations, using the Gauss-Jordan elimination method.
3;0;-5
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The world record time for a certain track event in 2000 was 74.98 seconds. In the ensuing years, the record time has decreased by 0.94 seconds each year. ? A: Write a formula for the record R, in seconds, t years after 2000. ? B: Use functional notation to express the record in 2002. ? C. Calculate the value you found in part B.
What will be an ideal response?
Use the distributive property to multiply. Then, if possible, simplify the resulting expression.3(7 + m)
A. 21m B. 21 + m C. 21 + 7m D. 21 + 3m
Solve.The temperature at 4 p.m. on January 2 was -11°F. By 9 p.m. the temperature had risen 16 degrees. Find the temperature at 9 p.m.
A. -5°F B. 5°F C. 27°F D. -27°F
Solve.A $150.00 dress is on sale for 10% off. Find the discount and the sale price.
A. Discount: $15.00; sale price: $1,485.00 B. Discount: $1.50; sale price: $1,485.00 C. Discount: $15.00; sale price: $135.00 D. Discount: $1.50; sale price: $135.00