the second one
reason:
the difference or the triangles is 1/3
Answer:
Let x be the number.
Given the statement: Three sets of a sum of a number and four are added to the sum of seven times the same number and thirteen.
" sum of a number and four" translated to x + 4
"Three sets of a sum of a number and four" translated to 3(x+4)
"sum of seven times the same number and thirteen" translated to 7x + 13
then;
the expression for the given statement become;

Using distributive property: 

Combine like terms;

Therefore, the simplified expression for Three sets of a sum of a number and four are added to the sum of seven times the same number and thirteen. is, 
Answer:
155.3 m
Step-by-step explanation:
<u>We have:</u>
θ: is the angle measured from the vertical = 75 °
v = is the speed of the submarine = 10 m/s
t = 1 min
The deep of the front end of the submarine at the end of a 1-minute drive is given by the following ratio:
<u>Where:</u>
d: is the distance traveled by the submarine in 1 minute
x: is the deep to find
The distance, d, is:
Now, the deep is:

Therefore, the deep of the front end of the submarine at the end of a 1-minute drive is 155.3 m.
I hope it helps you!
To find the max/min, you basically have to equate the first derivative
to zero. that will give you a value of "x". now after having done
that, find the second derivative. if it is grater than zero, it will
have min. value, if it is less than zero, it will have max. value
Answer:

Step-by-step explanation:
The surface of the water is at 0 m. Heights above the surface are positive and depths below the surface are negative.
