Step-by-step explanation:
![- 24 \div 4 = - 6](https://tex.z-dn.net/?f=%20-%2024%20%5Cdiv%204%20%3D%20%20-%206)
[tex] - 24 \div 4 = \\ \frac{ - 24}{4} \\ = \frac{ - 12}{2} \\ = /frac{-6}{1}
A) x -y =1
B) x * y =1
B) y = 1/x
A) x -(1/x) = 1
Multiplying both sides by "x"
A) x^2 -1 = x
A) x^2 -x -1 = 0
Solving by the quadratic formula
x = 1.618 and
y = .618
Interestingly, the number 1.6180339... is called the "phi ratio" or the "golden ratio".
https://en.wikipedia.org/wiki/Golden_ratio
Solution
Problem 6
For this case we can do this:
12, 16,__, 14, 8, 7
We can solve for x like this:
![\frac{12+16+x+14+8+7}{6}=13](https://tex.z-dn.net/?f=%5Cfrac%7B12%2B16%2Bx%2B14%2B8%2B7%7D%7B6%7D%3D13)
![x=13\cdot6-(12+16+14+8+7)=21](https://tex.z-dn.net/?f=x%3D13%5Ccdot6-%2812%2B16%2B14%2B8%2B7%29%3D21)
Problem 7
F
Answer:
i think B
Step-by-step explanation:
because if we think logically...the price have to more than 10-28.All answer except B are illogical for me i think
hope its help