Answer:
3: 
4: 
Step-by-step explanation:
Question 3 can be re-written as:
which equals:
Question 4 can be re-written as:
Doing the first 2 brackets gives us:
Expanding these two:
Simplifying it:
You should calculate( the area of a circle of radius 15 cm ) minus the area of the circle of radius (15 cm - width of the frame). I am not able to read the number, sorry.
That is the surface area of the frame.
Then, if area of circle radius is 100%, the % of face of the clock is:
(100xareaCircle(15cm-widthframe))/areaCircle15cm
I like the cat on your pfp LOL sorry i couldn’t help tho
Answer: 1194677035.714285
Step-by-step explanation:
= {(82902 * 6930)+(93945*82902)} / 7
= (574510860 + 7788228390) / 7
= 8362739250 / 7
= 1194677035.714285
Answer:
Answer is tan(20 degrees) so, D.
Step-by-step explanation:
