1.(5.17204021639)
2.(2.91548)
3.(21.14159)
4.(4.55581)
3x + y = 2
subtract 3x from both sides --> y = 2 - 3x
place in y = mx + b format --> y= -3x + 2
+2 is the y-intercept, go to +2 on the y-axis.
-3, means go down 3 and right 1
Your answer should be B.
Multiply the area of the base by it's height.
18 x 9 1/2 = 171 cm^3
The answer is D.
So you start with 23
for every row up you have -3
equation is
# of boxes= 23- 3x
x representing the number of rows above the bottom
# of boxes= 23- 3x=
23-3(5)= 8
5 for the top row
bottom row has 23
1 row above 23-3(x)=20
2 row above 23-3(x)= 17
3....23-3(x)= 14
4....23-3(x)=11
5...23-3(x)= 8
therefore just add all boxes each row has
23+20+17+14+11+8= 83
I hope this helps
11: 4d to the second power
12: 16y to the seventh
13: a to the second, c to the second, d to the second
14: 12a to the forth, b
15: 20 a to the third,b to the second, c to the third, d
16:6 a to the second power, b, c, d
