133=x + (x+5) + (x+14)
133 = 3x+19
3x=114
x= 114/3 =38
5+38 =43
38+14 =52
check: 38 +43 +52 = 133
3 sides are : 38, 43 & 52
The answer is the first and the third figure,attached
The polynomial 
is in standard form if the exponents are arranged in decreasing order.
<h3>
Polynomial in Standard Form</h3>
Polynomial is an algebraic expression with one or more terms. For example :
. In this example and in your exercise the exponents of the terms are not arranged in order.
Um polynomial is in <u>Standard Form</u> when the exponents of the terms are in decreasing order. See more details below.
is not in standard form because the exponents are not written in decreasing order.
is in standard form because the exponents are written in decreasing order.
Therefore, the given polynomial will be in standard form if yours exponents are arranged in decreasing order.
Read more about polynomials here:
brainly.com/question/4142886
Answer:
Step-by-step explanation:
(1/2)/3 = x/4
1/6=x/4
x=4/6 = 2/3
I'm sorry I'm too lazy to read all of that. However, I did get the main point. The river was going at 3 mph. Since he wanted to travel 10 miles upstream and downstream, you would have to subtract 20 by 3. This would mean he was going at a speed of 17 mph.
