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❖ The gray whale will need to come up 12 times during the 6 hr period.
Convert 6 hrs to mins:
1 hr = 60 mins
60 x 6 = 360 mins
Divide by 30 to see how many times the whale will need to come up:
360/30 = 12
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Answer:
-7
Step-by-step explanation:
Answer:
4/7
Step-by-step explanation:
6+1+5+2=14
6+2=8
8/14 = 4/7
There is 2 ways to solve this type of question.
Method 1
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Formula
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a² + b² = c²
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Apply the formula
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(7√2)² + (7√2)² = c²
c² = 98 + 98
c² = 196
c = √196
c = 14
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Ans: The diagonal length is 14cm
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Method 2
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Identify the triangle
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This is a special triangle
45° - 45° - 90°
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Property of the Angles
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x - x - x√2
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Find hypotenuse
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Given that the non-hypotenuse is 7√2
Hypotenuse = (7√2)(√2)
Hypotenuse = 7 x 2
Hypotenuse = = 14cm
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Ans: The diagonal length is 14cm
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