On a number line, a number, b, is located the same distance from 0 as another number, a, but in the opposite direction. The numb
1 answer:
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Answer:
74.31353
=74 m
Step-by-step explanation:
given that three locations are marked next to a river. Points B and C are on the same side of the river, and point A is on the other side of the river. To find the distance AB across a river, a distance BC of 241 meters is laid off on one side of the river. It is found that the angle at point B is 108.6° and the angle at point C is 14.9°.
we have information about triangle ABC as side BC =241, Angle B = 108.6 and angle C = 14.9 degrees.
Hence this is an obtuse scalene triangle.
Angle ∠A = 56.5° (III angle)
Using sine formula we get
So distance AB is 74 metres.
Answer:
Anish performed better than Aman.
Step-by-step explanation:
Given:
Marks obtained by Aman =410
Total marks = 500
We will first find the percentage of marks obtained.
To find the percentage of marks obtained we will divide Marks obtained by Total marks multiplied by 100.
framing in equation form we get;
Percentage of Aman =
Also Given:
Marks obtained by Anish = 536
Total marks = 600
We will first find the percentage of marks obtained.
To find the percentage of marks obtained we will divide Marks obtained by Total marks multiplied by 100.
framing in equation form we get;
Percentage of Anish =
Now we can see;
Percentage of Anish is greater than Percentage of Aman.
Hence Anish performed better than Aman.
Answer:
a₂₀ = - 137
Step-by-step explanation:
there is a common difference between consecutive terms , that is
7 - 15 = - 9 - (- 1) = - 17 - (- 9) = - 8
This indicates the sequence is arithmetic with nth term
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
here a₁ = 15 and d = - 8 , then
a₂₀ = 15 + (19 × - 8) = 15 + (- 152) = 15 - 152 = - 137