Step-by-step explanation:
Since we have given that
Number of hour Marco practiced the piano on Monday is given by
Number of hours Marco practiced the piano on Tuesday is given by
1) For Adding :
Total number of hours he practiced on both Monday and Tuesday will be
2) For Subtraction,
Number of hour he practiced more on Tuesday than on Monday will be
Answer:
36:85
Step-by-step explanation:
Given the right angled triangle as shown in the attachment, the cos of angle N can be gotten by simply using the CAH method in SOH CAH TOA.
According to CAH
Cos∠N = Adjacent/Hypotenuse
Hypotenuse is the longest of the triangle |ON| = 85
Since the opposite side to ∠N is 77, the third side will be the Adjacent side.
Adjacent side will be |NP| = 36
Therefore:
Cos∠N = 36/85
The ratio that represents the cosine of ∠N is 36:85
