0.08x + 0.03y = 345, and to solve for each x and y, you can use the substitution method.
Answer:
a. 7.64 km/h
b. 6.0°
c. see below
Step-by-step explanation:
a) The total velocity of the boat is ...
7i +(0.6i +0.8j) = 7.6i +0.8j
The magnitude of this velocity is the speed of the boat, relative to land. That is given by the Pythagorean theorem.
|7.6i +0.8j| = √(7.6² +0.8²) = √58.4 ≈ 7.642 . . . . km/h
__
b) The angle of the total velocity with respect to the "i" direction (the direction of vector v) is ...
α = arctan(0.8/7.6) ≈ 6.009°
__
c) The boat is headed in a direction 6° different from its velocity relative to the water. That may need to be accounted for if the boat is traveling any significant distance.
Answer:
16 if im correct
Step-by-step explanation:
4x4=16.
aaaaaa im sorry i did not know that I did not know this :C ill try
Answer:
29
Step-by-step explanation:
The value of given expression is: 3
<h3>What is exponents and powers?</h3>
Exponent refers to the number of times a number is used in a multiplication. Power can be defined as a number being multiplied by itself a specific number of times.
9*(15)³/45 * 
/9
= 3²* 3³*5³/5² * 3² * 3² * 5
= 
= 3*1
=3
Learn more about exponents and power here:
brainly.com/question/15722035
#SPJ1
