The Zika virus present in a pregnant mother may lead to an infant born with microcephaly. Not all mothers who are infected with the Zika virus will have babies with Microcephaly but it does increase their risk. Using a deterministic model of causality (page 133) what type of cause is the Zika virus with regard to microcephaly?

Hint: X=Zika virus; Y=microcephaly

a) Necessary and sufficient
b) Sufficient but not necessary
c) Necessary but not sufficient
d) Neither necessary nor sufficient

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12

the answer is

d.

5.3066 m2

step-by-step explanation:

answer: 1.06 km per sec

step-by-step explanation:

39.6 m=63.72 km

60 min in an hour so 63.72/60=1.06

third choice down

step-by-step explanation:

the first inequality is based on the number of adults and campers, and the second inequality is based on the cost of feeding both the adult and the camper.

we know that there is room for 525 people max.   it's ok to have less than 525, but it's not ok to have more than 525, so the inequality is less than or equal to.   the number combination of adults (x) and campers (y) cannot exceed this 525 max.   therefore:

x + y ≤ 525

now we talk about cost.   it costs $9 to feed one adult, so depending upon the number of adults you have (x) depends upon how much it will cost to feed that number of adults.   same with the campers, who cost $5 to feed.   the adults can be represented by 9x and the campers can be represented by 5y.   since the budget cannot exceed 1,200, the second inequality is:

9x + 5y ≤ 1200