Part 1:
a = 2
b = 4
c = -3
Part 2: the parabola will open up
Part 3: axis of symmetry x = -1
Answer:
Volume of a cylinder: V = π * r² * h ,
Base surface area of a cylinder: A_b = 2 * π * r² ,
Lateral surface area of a cylinder: A_l = 2 * π * r * h ,
Total surface area of a cylinder: A = A_b + A_l ,
Step-by-step explanation:
So, when the radius is tripled, the volume will be 3 squared = 9 times than the previous one.
Answer:
15km in 20 minutes
Step-by-step explanation:
Distance covered by the train in 20 minute =75km60×20=25km. Hence, the train will cover 15km in 20 minutes.
C I did the test and if it’s wrong I don’t know what to tell you
Answer:
BC=4 units
Step-by-step explanation:
<u><em>The picture of the question in the attached figure</em></u>
we know that
In the right triangle ABC
----> by SOH (opposite side divided by the hypotenuse)
we have
substitute the given values
solve for BC
Remember that
so
