Answer:
The son in 12 years old and the woman is 36 years old
Step-by-step explanation:
Let the woman’s current age be w years and son’s age be s years. According to the question, the woman is 3 times as old as her son then, w=3s Also, it is given that 8 years ago the product of their ages were 112 Therefore, (w-8)(s-8)=112 (3s-8)(s-8)=112 Solving for s, we get 
By using quadratic equation 
s=12 We know that w=3s w=
= 36. Hence, the woman’s age is 36 years and the son’s age is 12 years.
Add the numbers and divide by 5 to get a mean of 6.4
8 - 6.4 = 1.6
4 - 6.4 = -2.4
7 - 6.4 = 0.6
8 - 6.4 = 1.6
5 - 6.4 = -1.4
Add the absolute value of each: 1.6 + 2.4 + 0.6 + 1.6 + 1.4 = 7.6
Divide by 5 = 1.52
1.5
Answer:
Step-by-step explanation:
Given that,
The surface of the ramp will be 7 feet long with a total rise of 2 feet.
We need to find the angle of elevation of the ramp. We can use trigonometry to find it such that,
P is perpendicular
H is hypotenuse
Here, P = 2 feet, H = 7 feet
So,
So, the angle of elevation of the ramp is equal to 
.
What is the story problem put the story promblem
Answer:
Step-by-step explanation:
radius=√((15-14)²+(17-17)²)=1
eq. of circle is (x-14)²+(y-17)²=1²
