Step-by-step explanation:
The 1st rectangle
16 *7=112
next triangle
find details
13-7=6
16-8=8
6*8
48÷2
24+112
136
Answer: (x+2)^2 -1
x^2+4x+3=x^2+4x+3 (4)-(4)
Complete the square: -1+(x^2+4x+4) =-1+(x+2)^2
Answer: (x+2)^2 -1
Step-by-step explanation:
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
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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°
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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.
It's helpful to find 10%, as it is on a smaller scale and easier to find. From there it's simple to just multiply by 10 to get 100% of her earnings.
Please rate, thanks, and pick branliest answer (not necessarily mine) This really helps!
Try A? I’m not 100% sure but I got A
