That would be true because the adjacent side to B is 4 and the hypotenuse is 5 and the formula for cos b is adjacent/hypotenuse
Hope this helps!
The 9 is in the one hundred thousand's place
E - 30. From 6 to 9 is increase of 1.5times
Answer:
I don't understand the question, but...
When you multiply a number by itself, you are squaring it.
<em>For Example:</em>
<em>3 x 3= 9</em>
<em>is the same as...</em>
<em>3^2= 9</em>
Answer: Choice A
The number line graph is visually showing every number that is 19 or smaller; hence 
Note the use of a closed or filled in circle at the endpoint (in contrast to an open circle). This indicates we are including the endpoint 19 as part of the solution set, and that's why we go for "or equal to" as part of the inequality sign.