Why would a researcher use a secondary source instead of a primary source
when analyzing a historical event?
O
A. To hear about the event from someone who was directly involved
O
B. To learn from the conclusions of many other experts on the event
O
C. To see the event through the eyes of someone who witnessed it
O
D. To understand how people felt during the period when the event
happened

B.  To learn about conclusions of many other experts on the event

Explanation:

A,C, and D are all examples of first-hand experiences or accounts therefore meaning A,C and D are all primary sources rather than B which is the only secondary source.

the anterior pituitary gland produces the following hormones and releases them into the bloodstream: psychotropic hormone, which stimulates the adrenal glands to secrete steroid hormones, principally cortisol. growth hormone, which regulates growth, metabolism and body       hope i

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69