16cos(28). Type that in like last time.
Answer:
mary=10 jack=15
Step-by-step explanation:
After 4 years Mary (x+4), Jack's age (x+5) + 4.
sum of the ages after 4 years :(x+4) + (x+5) +4=33
Simplifying the equation:
2x+13 = 33 ----->> 2x=20----->>>>x = 10 Mary's age
10 + 5 = 15 which is Jack's age.
Answer:
Volume of the cone: 32π cubed unit
Step-by-step explanation:
Volume of cone: V=1/3hπr²
1/3 x 6 x π x 4^2 = 32π
You FOIL
9x^2-15x+21x-35
Combine like terms
9x^2 + 6x - 35
Answer:22.36 mi/hr
Step-by-step explanation:
Given
water in a river moves south at 
motorboat travels due to east at a speed of 
Velocity of boat relative to the moving water 
Magnitude of 
with the x axis.
