Replace? with =, >, or < to make the statement true. 16 ÷ 4 + 12? 4 + 24 ÷ 2
1 answer:
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Answer:
KL ≈ 1.94
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos48° = =
=
( multiply both sides by KL )
KL × cos48° = 1.3 ( divide both sides by cos48° )
KL = ≈ 1.94 ( to the nearest hundredth )
Answer:
The diameter decreases at a rate of 0.143cm/min when it is of 10 cm.
Step-by-step explanation:
Surface area of an snowball:
An snowball has spherical format. The surface area of an sphere is given by:
In which d is the diameter of the sphere.
In this question:
We need to differentiate S implicitly in function of time. So
Surface area decreases at a rate of 9 cm2/min
This means that
At which the diameter decreases when the diameter is 10 cm?
This is when
. So
Area in cm², so diameter in cm.
The diameter decreases at a rate of 0.143cm/min when it is of 10 cm.