Answer:
51 + 29
Step-by-step explanation:
check the picture below.
![\bf \stackrel{f(x)}{0}=-16(x^2-6x-7)\implies 0=x^2-6x-7 \\\\\\ 0=(x-7)(x+1)\implies x= \begin{cases} \boxed{7}\\ -1 \end{cases}](https://tex.z-dn.net/?f=%20%5Cbf%20%5Cstackrel%7Bf%28x%29%7D%7B0%7D%3D-16%28x%5E2-6x-7%29%5Cimplies%200%3Dx%5E2-6x-7%20%5C%5C%5C%5C%5C%5C%200%3D%28x-7%29%28x%2B1%29%5Cimplies%20x%3D%20%5Cbegin%7Bcases%7D%20%5Cboxed%7B7%7D%5C%5C%20-1%20%5Cend%7Bcases%7D%20)
it cannot be -1, because is a seconds amount after moving.
Answer:
y=2
Step-by-step explanation: horizon shows where the dotted line crosses the y axis
Answer:
30 years
Step-by-step explanation:
Forming Algebraic expressions and solving them to find the age.
Ratio of age of mother and daughter = 5 : 3
Age of mother = 5x
Age of daughter = 3x
It is given that mother's age is 50 years.
⇒ 5x = 50
Divide both sides by 5.
x = 50÷5
x = 10
Daughter's age = 3x
= 3*10
= 30 years
Answer:
R = 6
Step-by-step explanation:
Remember... Circle area is:
A = pi×R^2
Where R is the circle radius.
Then,
Pi×R^2=36×Pi
R = square root of 36
R = 6