Use a special product formula to simplify.(10a - 7)2
A. 10a2 - 140a + 49
B. 100a2 + 49
C. 100a2 - 140a + 49
D. 10a2 + 49
Answer: C
Mathematics
You might also like to view...
Solve the problem.A rocket lifts off the surface of Earth with a constant acceleration of 30 m/sec2. How fast will the rocket be going 2.5 minutes later?
A. -75 m/sec B. 37.5 m/sec C. 75 m/sec D. 187.5 m/sec
Mathematics
Solve.2(y + 7) = 3(y - 7)
A. -35 B. 35 C. -7 D. 7
Mathematics
Find decimal notation.
A. -0.4
B. -4.
C. -1.
D. -0.
Mathematics
Solve the problem.A certain radioactive isotope has a half-life of approximately 1450 years. How many years would be required for a given amount of this isotope to decay to 80% of that amount?
A. 3367 yr B. 387 yr C. 467 yr D. 290 yr
Mathematics