The general eaquation of a parabola in terms of its vertex is:
y = a(x - h)^2 + k
where the vertex point is (h, k)
therefore, an equation of a parabola with vertex (1, -2) is:
y = 5(x - 1)^2 - 2
Answer:
Step 1
Step-by-step explanation:
Associative property of addition is The order of the parentheses. There are no parentheses is this problem. We are using the commutative property of addition which states we can change the order of the addends
AD = AB
AD = 2r+8
AB = 5r-13
we need to find the value of r to find the total length
so 2r+8 = 5r-13
subtract 2r from each side:
8 = 3r -13
add 13 to each side:
21 = 3r
divide both sides by 3
r = 21 / 3 = 7
r=7
now we know r, so replace r with 7 in the equation for AD
AD = 2r+8 = 2(7) +8 = 14 +8 = 22
the answer is D. 22
Answer:
393 bacteria
Step-by-step explanation:
First find how much it would increase per hours :
1900 / 29 = 65.5172414
Then take this and multiply it by 6 to get :
393.103448
Round it to the nearest whole number to get:
393 bacteria
