Question

#16, really suck at doing equations like this, any help would be appreciated!!

Answer 1

24. answer is (1)  1, only
23. answer is (4)  c(z = 0.20(z - 1) + 0.46
22. answer is (3)  (p^2 + 9)(p + 3)(p - 3)
21. answer is (1) 12
20. answer is (3) 5
19. answer is (4) 4
18. answer is (3)  (6, 3) is the solution to the system, because it is satisfies the equations.

17: Your answer would be:
The equation that has the same solution to: x^2 + 6x - 7 = 0, 
is Number (4) (x + 3)^2 = 16

16: your answer would be number (1) r = squareroot V/pie h

15: Answer is (3) 5,000 is the amount of money in the account initially

14: answer is (4) Pelican Beach

13: answer is (3) 4.50 + 0.79r not less than 16.00; 14 rides

12 answer is (2) The graph of f(x) is narrower than the graph of g(x), and it's vertex is moved to the right 2 units and up 1 unit.

11. answer is (4) (2, 9)

10. answer is (2)  6x^2 - 28x + 30

9. answer is (4) y + 3 = 6x

8. answer is (1) 2589

7. answer is (1) x greater than 9

6. answer is (2) Whole numbers

5. answer is (3) 

4. answer is (1) 3000 (1 + 0.02)^16

3. answer is (4)  (2x + 3)(x - 1) = 0

2. answer is (2) 5280 ft/ 1 mi

1. answer is (2) Hours worked per week





Hope that helps some!!!

Answer 2

$\bf 16)\\\\ V=\pi r^2 h\implies \cfrac{V}{\pi h}=r^2\implies \pm\sqrt{\cfrac{V}{\pi h}}=r\implies +\sqrt{\cfrac{V}{\pi h}}=r \\\\\\ 17)\\\\ x^2+6x-7=0\qquad \begin{cases} -1\cdot 7=&-7\\ -1+7=&6 \end{cases}\implies (x-1)(x+7)=0 \\\\\\ x= \begin{cases} 1\\ -7 \end{cases}$

$\bf -------------------------------\\\\ (x+3)^2=16\implies x+3=\pm\sqrt{16}\implies x+3=\pm 4 \\\\\\ x=\pm 4-3\implies x= \begin{cases} 1\\ -7 \end{cases}$