y=-3 and then x=-1 =-3:-1
28/4=7 Therefore 1/4 of 28 is 7
Answer:
Step-by-step explanation:
Given that a survey showed that 72% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight
X - number of people who need correction for their eyesight
X is binomial since each event is independent and there are only two outcmes.
X (18, 0.72)
Required probability = the probability that no more than 1 of them need correction for their eyesight.
=P(X=0)+P(X=1)=0.00000296+0.000137
=0.00014
Yes 1 is a significantly low number as probability is almost zero.
Answer:
Step-by-step explanation:
According to the trigonometric ratios the tangent of an angle is the ratio of perpendicular to base, i.e.
In the provided triangle the perpendicular is 8 and base is 15.
Compute value of tan <em>A</em> as follows:
Thus, the value of tan <em>A</em> is 
.
