A number, n, is rounded to 2 decimal places.

1 answer:

7 0

Using<u> rounding concepts</u>, it is found that the error interval for n is:

$3.865 \leq n < 3.875$

The number is rounded to two decimal places, hence:

If the third decimal digit is 5 or more, one is added to the second decimal digit.
If the third decimal digit is of 4 or less, the second digit stays the same.

From this, we have that values between 3.865(inclusive) and 3.875(exclusive) are rounded to 3.87, which means that the error interval is:

$3.865 \leq n < 3.875$

A similar problem is given at brainly.com/question/21406226

You might be interested in

Elenna [48]

Answer:

$cos(V)=\frac{39}{89}=.44$

∠ $V=64.01$ °

Step-by-step explanation:

$sin(angle)=\frac{opposite}{hypotenuse}$

$cos(angle)=\frac{adjacent}{hypotenuse}$

$tan(angle)=\frac{opposite}{adjacent}$

The cosine of an angle is equal to the side adjacent to the angle over the hypotenuse, the longest side.

$cos(V)=\frac{39}{hypotenuse}$

We need to find the hypotenuse of this triangle. This is relativly easy to do with a right triangle; we can just use the Pythagorean Theorem.
Pythagorean Theorem: $a^2+b^2=c^2$ where $a$ , $b$ , and $c$ are the 3 different sides of a right triangle.