Well one way that you can use multiplication to estimate and solve division problems is that when you are dividing a smaller number or any number into another number for example... 12/324 you can multiply what times 12 equals 324. That or use a calculator if it is aloud I may add. Sometimes it is easier to do it that way then doing out all the horrible long steps making it harder to do.
The correct answer for this question is letter "<span>D. (x) / (sqrt (1+x^2))."
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Make a triangle. yes a triangle. label "opposite" side x and adjacent side 1 since the tangent is x = x/1
use pythatoras to find the hypotenuse which will be
square root (1 + x^2)
then
<span>sin(ta<span>n<span>−1</span></span>(x)<span>) = x / (square root (1 + x^2))
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that being opposite over hypotenuse
and by the same triangle
<span>cos(ta<span>n<span>−1</span></span>(x)) = </span>x / (square root (1 + x^2))
irrational number, any real number that cannot be expressed as the quotient of two integers.
Any number that can be written as a fraction with integers is called a rational number . For example, 17 and −34 are rational numbers. (Note that there is more than one way to write the same rational number as a ratio of integers.
1st Is rational
2nd one is irrational
3rd is irrational
4th is rational
Step-by-step explanation:
How many mushrooms did she gather every hour, if she gathered 7 more mushrooms in the second hour than in the first hour, and 6 more in the third hour than in the first hour? = 8.
Answer:
-1,-5,-25,-125,-625,-3125
have a nice day