Solve the problem using matrices.The table below shows the number of birds for three selected years after an endangered species protection program was started.
Use the quadratic function y = ax2 + bx + c to model the data. Solve the system of linear equations involving a, b, and c using matrices. Find the equation that models the data.
A. y = 7x2 - 9x + 28
B. y = 10x2 - 27x + 21
C. y = 5x2 + 9x + 25
D. y = 6x2 + 18x + 20
Answer: C
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Solve the problem.Levi borrowed $6944 at 4% simple interest for 6 months. How much will the interest amount to? What is the total amount that Levi will have to pay back at the end of 6 months? Round answers to the nearest cent if necessary.
A. $140.05; $7084.05 B. $162.03; $7106.03 C. $115.73; $7059.73 D. $138.88; $7082.88
Complete the table. Object Liters (L) Milliliters (mL) Cubic Centimeters (cc) Cubic Centimeters (cm3)Capacity of water tank 234??
A.
| Object | Liters (L) | Milliliters (mL) | Cubic Centimeters (cc) | Cubic Centimeters (cm3) |
| Capacity of water tank | 234,000 | 234 | 234 | 234 |
B.
| Object | Liters (L) | Milliliters (mL) | Cubic Centimeters (cc) | Cubic Centimeters (cm3) |
| Capacity of water tank | 0.234 | 234 | 234 | 234 |
C.
| Object | Liters (L) | Milliliters (mL) | Cubic Centimeters (cc) | Cubic Centimeters (cm3) |
| Capacity of water tank | 0.234 | 234 | 23,400 | 23,400 |
D.
| Object | Liters (L) | Milliliters (mL) | Cubic Centimeters (cc) | Cubic Centimeters (cm3) |
| Capacity of water tank | 2.34 | 234 | 234 | 234 |
Decide whether the statement is true or false. If it is false, tell why.The equation -x2 = -144 has no real solutions.
A. True B. False; the equation is equivalent to x2 = 144 and has two real solutions, 12 and -12. C. False; the equation has one real number solution, 12.
Solve the equation.-0.6m + 9.3 - 8.9m = 8.8 - 9.5m + 0.5
A. -6.9 B. 0 C. no solution D. all real numbers