Round 1,287 to the nearest thousands place
2 answers:
Answer:
1,000
Step-by-step explanation:
refer to attached.
the number in the thousands place is the number 1.
How we round this number depends on the number immediately to the right of it (i.e the hundreds number)
Case 1: If the number in the hundreds place is less than 5, then we keep the number in the thousands place the same and replace all the digits to the right of the thousands digit by zeros
Case 2: If the number in the hundreds place is 5 or more, then increase the number in the thousands place by 1 and replace all the digits to the right of the thousands digit by zeros
in our case, the hundreds digit is 2, which falls into case 1 above,
hence according to the procedure in case 1 above, we keep number 2 the same and replace everything to the right of 2 with zeros, giving us
1,000
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Answer:
Step-by-step explanation:
Given that is a right angled triangle.
and
Kindly refer to the attached image of in which all the given angles are shown.
To find:
sin(38°) = ?
a) cos(38°)
b) cos(52°)
c) tan(38°)
d) tan(52°)
Solution:
Let us use the trigonometric identities in the given .
We have to find the value of sin(38°).
We know that sine trigonometric identity is given as:
....... (1)
Now, let us find out the values of trigonometric functions given in options one by one:
....... (2)
By (1) and (2):
sin(38°) cos(38°).
...... (3)
Comparing equations (1) and (3):
we get the both are same.
