Answer:
SA = 838 in²
Step-by-step explanation:
SA = (15)(42) + (13)(8)(2) = 838 in²
You would take 3 x 4 which equals 12. And then you would take 12 x8 which would equal 96
Answer: 21 & 18
Step-by-step explanation:
Sum of two numbers is 39
Difference is 3
Let the numbers be x & y
X+y=39........equation 1
X-y=3...........equation 2
X=3+y............equation 3
Substitute equation 3 into equation 1
(3+y)+y=39
3+y+y=39
3+2y=39
2y=39-3
2y=36
Y=36/2
Y=18
Substitute for y in equation 2
X-y=3
X-18=3
X=3+18
X=21
The two numbers are 21 & 18
X is an exterior angle so it’s 35+58 which equals 93
(3a+2)(4a+5) ......expand
12a^2+15a+8a+10 .......group like terms 15a + 8a
12a^2+23a+10 ....this s the answer!
