The vertex is exactly half way between directrix and focus. In this case the vertex is (8,-7)
(h,k)
P is the distance between the vertex and either the directrix or focus, in this case p = 1.
a = 1/(4p) or 1/(4*1) or 1/4
write the equation in vertex form
y = a(x-h)^2 + k
y = 1/4(x-8)^2 -7
SOLUTION
The total number of females =
if 14 have an A in the class, the number of students without A is:
8 male students do not have an A, therefore the number of female students without an A is:
The probability that a student does not have an A given that the student is female can be calculated thus:
y = 23/(3 + x)
Step-by-step explanation:
Answer:
20 lizards
Step-by-step explanation:
<h2><u>Number of lizards</u></h2>
this stem and leaf diagram shows the key of:
4║1 meaning 41.
look at the top values. there is nothing under 0 and 1. but there is under 2
2 ║0 means 20 lizards.
<h3><u>therefore the smallest number of lizards at any one zoo is 20 lizards</u></h3>
# of sailboats : # of rowboats = 7:4
# of sailboats = 56
56 / 7 = 8
8 * 4 = # of rowboats
# of rowboats = 32
