So basically the height is divided by a certain number to evenly divide it
There will be eight marbles on the 9th line
Answer:
= 4a + 3c + 13
Step-by-step explanation:
(9+4a)+(4+3c)
= 9 + 4a + 4 + 3c
= 4a + 3c + 13
Answer:
45
Step-by-step explanation:
6^2 + 3√9
=36 + (3 x 3)
=36 + 9
= 45
Answer:
Angle C = 45 degrees.
Angle D = 30 degrees.
Step-by-step explanation:
Angle C = 45 + 90 = 135 180 - 135 = 45.
Angle D = 180 - 45 = 135 (angle F) 15 + 135 = 150 180 - 150 = 30
