1. 1/8 = 0.125 You get this by dividing 1 by 8.
11. the square root of 25/4 is 5/2, or 2.5. You get this by square rooting the numerator and denominator of the fraction.
13. the cube root of 8 is 2, because 2 x 2 x 2 = 8.
Hope this helps
brainliest pls
sorry I didn't do them all cause I have to go
Answer:
It returns the angle whose cosine is a given number.
Step-by-step explanation:
For every trigonometry function, there is an inverse function that works in reverse. These inverse functions have the same name but with 'arc' in front. (On some calculators the arccos button may be labeled arccos, or sometimes cos-1.) So the inverse of cos is arccos etc. When we see "arccos x", we understand it as "the angle whose cosine is x"
cos30 = 0.866 Means: The cosine of 30 degrees is 0.866
arccos 0.866 = 30 Means: The angle whose cosine is 0.866 is 30 degrees.
Use arccos when you know the cosine of an angle and want to know the actual angle.
Answer:
1 is not a linear equation
2 is a linear equation
Answer:
The correct answer is - Ben is 8.
Since Ben is 4 times older than Ishaan, but also we know the fact that Ben is 6 years older than Ishaan, that leaves us with only one number as the possible solution, the number 8.
In order to get to the result we should find a number that multiplied by four and summed up with six, gives the same result.
4 x 2 = 8
2 + 6 = 8
Knowing now that the age of Ben is 8, we can also conclude that the number used for multiplying and summing, 2, is the number that represents the age of Ishaan.
Step-by-step explanation: