Answer:
A
Step-by-step explanation:
It’s B im pretty sure but if not D
Length of the mid-segment = (long base + short base) / 219 = (27 + short base) / 219 - (27 / 2) = short base / 2Multiplying both sides by 238 -27 = short baseshort base = 11
Source:http://www.1728.org/quadtrap.htm
Answer:
(a) 5 mayflies
(b) 15 mayflies
(c) 84 flying flies
Step-by-step explanation:
Represent Mayflies with M and the total flying insects with F
The ratio can be represented as:
Solving (a):
Find M
Substitute 14 for F in
Convert to fraction
Multiply through by 14
Solving (b):
Find M
Substitute 42 for F in
Convert to fraction
Multiply through by 42
Solving (c):
Find F
Substitute 30 for M in
Convert to fraction
Multiply through by 30
Answer: Third option is correct.
Step-by-step explanation:
Since we have given by
Event A: the red die shows 1
Event B : the numbers add to 4
Event C: at least one of the numbers is 3
Event D : the numbers do not add to 9.
D' means the number add to 9.
We need to write the following statement in symbolic form:
Either the numbers add to 9 or the red die shows a 1.
So, it becomes,
Number of elements in D'∪A = 1.
Hence, Third option is correct.