Answer:
see below
Step-by-step explanation:
Scientific notation is a * 10 ^b
a must be a number between 1 ( including 1 ) and less than 10
12 is greater than 10 so it is not scientific notation
1) Tan45 = 1
2) Sin70 = 0.9397
3) Cos30 = 0.8660
4) Cos20 = 0.9397
The surface area of the globetrotters must work with is 283.4 square inches
<h3>The surface area of the sphere</h3>
The formula for calculating the surface area of a sphere is expressed as:
S = 4πr²
where r is the radius of the sphere
Given that
d = 9.5in
r = 4.75in
Substitute the given parameters into the formula
S = 4π(4.75)²
S = 283.385 square inches
The surface area of the globetrotters must work with is 283.4 square inches
Learn more on the surface area of the sphere here: brainly.com/question/1293273
The speed the water level rising 250 min after the filling begins
is 1/500 m/min and it will take
2000 minutes to fill the pool. I am hoping that these answers
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