Answer:
12th triangular number is 78
50th triangular number is 1275
Step-by-step explanation:
12+1=13
12÷2=6
6x13=78
if you do this for 50 you get 1275
Answer:
Its the second choice.
Step-by-step explanation:
Substitute x = 2 into the function .
Answer:
Jamal hiked = 44/3 miles
Step-by-step explanation:
Mixed numbers are given in this question which can be changed into fractions by multiplying the denominator by quotient and adding numerator to it.
Given that:
Length of first trail: 5 1/3 = (3*5 + 1)/3 = 16/3 miles
According to given condition:
Length of second trail: 1 3/4 * 16/3 = (4*1+3)/4 * 16/3 = 7/4*16/3
By simplifying:
Length of second trail = 28/3 miles
So the total miles Jamal hiked = 16/3 + 28/3
Jamal hiked = 44/3 miles
i hope it will help you!
Answer:
DE is parallel to AC
DE = 2AC
<h3>
<u>Explanation</u><u> </u></h3>
In triangle ABC, BD = AD
BE = EC
D is mid point of AB
E is the mid point of AC
According to the mid point theorem, ( The line segment in a triangle joining the midpoint of two sides of the triangle is said to be parallel to its third side and is also half of the length of the third side.”) DE is parallel to AC and equal to half of it
21/24 That's my best guess
