If you draw an octagon (eight-sided polygon), select one vertex and construct each diagonal from this vertex, you will see there are 5 such diagonals. Thus, for each of the 8 vertices you can draw 5 diagonals and hence there can be 5 × 8 = 40 diagonals.
Answer:
2bc
Step-by-step explanation:
The product of c and b means c X b. However, in algebra, we typically miss out the X (multiply) symbol. We also like to put letters in alphabetical order. So this means the product of c and b is written as bc.
Then, to double a number, this just means to multiply by 2.
so we have 2Xbc. But, again, we don't write in the multiply symbol. We also put numbers in front of letters.
So this becomes 2bc.
3a=11-2
3a=9
---------
9/3=3
---------
A=3
~~~~~~
Not sure on the second one.
Answer:
It is A.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given tq equation of the height reached by the rocket as y=-16x^2+235x+133
The velocity of the object at its maximum height is zero
v = dy/dx = 0(at max height)
v =-32x +235
0 =-32x+235
x = 235/32
x = 7.34
Hence the rocket will reach its maximum height after 7.34seconds