Answer:
Step-by-step explanation:
Answer:
B.
(3x + 4)(x − 7)
Step-by-step explanation:
If you multiply.
3x2-21x+4x-28
3X2-17x-28
Answer:
9 hours
Step-by-step explanation:
12x+32=140
so
140-32=108
108/12= 9
x=9
Answer:
32°
Step-by-step explanation:
The population of students in a school is 810.
We want to find the sectoral angle that corresponds to 72, if we should represent this on the pie chart.
This is given by number of students in class over total times 360.

The required central angle is 32°