There are 13 girls and 10 boys on a bus going to a museum. 5 of the students are wearing a red shirt. How many students are on the bus in total? How many students are not wearing a red shirt?
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Answer:
BC ≈ 17.0 (neither Crow nor Toad is correct)
Step-by-step explanation:
The left-side ratio of (2+4)/4 = 3/2 suggests BC is 3/2 times the length DE. If that were the case, BC = (3/2)(11) = 16.5, as Crow says.
The right-side ratio of (5+9)/9 = 14/9 suggests that BC 9 is 14/9 times the length DE. If that were the case, BC = (14/9)(11) = 154/9 = 17 1/9 ≈ 17.1, as Toad says.
The different ratios of the two sides (3/2 vs 14/9) tell you that the triangles are NOT similar, so the length of BC cannot be found by referring to the ratios of the given sides.
Rather, the Law of Cosines must be invoked, first to find angle A (109.471°), then to use that angle to compute the length of BC given the side lengths AB and AC. That computation gives BC ≈ 16.971. (See the second attachment.)
Answer: p’s’ || Q’R’
Step-by-step explanation:
Answer:
The approximate length of the two other sides is 10cm
Step-by-step explanation:
Given
Required
The length of the two other sides
Divide the triangle to 2 (See attachment)
Considering one of the triangles, we have:
Take square roots
<em></em><em> --- approximated</em>
Given dimensions:
Height of the cylinder = 2 m
Volume is increasing at a rate of = 10 m³/min
Radius = 4 inches
Converting radius in meters.
1 inch = 0.0254 meters
4 inches = meters
we have to find,
Volume of the cylinder is given by
=
Now differentiating with respect to 't'
= 7.83 meter per minute.