Use the distributive property:
And
Answer:
3 and -3
Step-by-step explanation:
+3 -3 =0
sum mean adding
A stem and leaf plot shows sets of two digit numbers, by separating the ten’s place and the one’s place. On the left is the different ten’s values, while on the right next to each of the values on the left is the one’s values that associate with each of the ten’s values. This means that the numbers in this set of data are 32, 47, 51, 55, 55, 55, 58, 64, and so on. From there, you can use that knowledge to figure out how many scores were above 60.
The terms that are above 60 are 64, 65, 73, 74, 77, 87, 88, 91, 93, 93, 97, 99, and 99, for a total of 13 of the 20 scores being above 60.
Here's the sum rule for the tangent function:
In the special case a=b, this becomes the double angle formula:
In your case, you case use the sum rule once:
And use it again, in the special case of the double angle:
We can obvisouly simplify this expression a lot: let's deal with the numerator and denominator separately: the numerator is
and the denominator is
So, the fraction is
