Answer:
3.9 mi/h
Step-by-step explanation:
If the boy is rowing perpendicular to the current, the two vectors form a right triangle.
AB represents the downstream current, BC is the speed across the river, and AC is the ground speed of the boat
AC^2 = 2.4^2 + 3.1^2 =5.76 + 9.61 = 15.37
AC = sqrt(15.37) = 3.9 mi/h
The boat's speed over the ground is 3.9 mi/h.
Answer:
<h3><u /></h3><u>Trigonometric identities</u>
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Therefore, using the <u>identities</u>, the given expression can be <em>simplified</em> as follows:
SOLUTION:
We are to find the rate of inflation in the given question;
The formula to be used is;
Inflation rate =
CONCLUSION
The inflation rate of CPI that increased from 208 to 221 to the nearest tenth of a percentage is 6.3%.