You work as a lab assistant. Each morning you are responsible for grouping the correct number of test tubes for
1 answer:
Answer:
<h2>Option D is correct.</h2>Step-by-step explanation:
In total 40 test tubes are required for 12 experiments.
The first two experiments will require 4 test tubes for each.
Hence, there will be a requirement of = 8 test tubes.
Six experiments require 3 test tubes each.
Hence, these 6 experiments will take 18 test tubes.
Other 2 experiments will take 2 test tubes.
Here, = 4 test tubes will be required.
Till now a total of (8 + 18 + 4) = 30 test tubes have been used.
The remaining number of test tubes is (40 - 30) = 10.
The remaining experiments require test tubes.
The first calculation to perform is 2(4) + 6(3) - 2(2).
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Answer:
74.0°
Step-by-step explanation:
In triangle JKL, k = 4.1 cm, j = 3.8 cm and ∠J=63°. Find all possible values of angle K, to the nearest 10th of a degree
Solution:
A triangle is a polygon with three sides and three angles. Types of triangles are right angled triangle, scalene triangle, equilateral triangle and isosceles triangle.
Given a triangle with angles A, B, C and the corresponding sides opposite to the angles as a, b, c. Sine rule states that for the triangle, the following holds:
In triangle JKL, k=4.1 cm, j=3.8 cm and angle J=63°.
Using sine rule, we can find ∠K: