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.
The length is 9 feet.
The formula for Area is A= L*W*H.
You are given A=189, W= 7 feet and H= 3 feet. Solve formula for
L.
189= L*7* 3
189=21 L
Divide both sides by 21 to solve for L
189/21 = 21L/21
9=L
Answer:
15 sides
Step-by-step explanation:
Always the sum of interior angle and exterior angle = 180
Let the exterior angle = x
Interior angle = 6.5 *x = 6.5x
x + 6.5x = 180
7.5x = 180
x = 180/7.5
x = 24
Exterior angle = 24°
Sum of exterior angles of any polygon = 360
number of side = Sum of exterior angles ÷ measure of each exterior angle
= 360 ÷ 24
= 15
