Answer:
Please mark Branilyest
Step-by-step explanation:
A is false
B is true
C is true
D is true
E is false Because B is under 0 so it is negative, and C would be positive
Answer:
surface area of the triangular pyramid
=(1/2×9×7.8)+(3×1/2×9×12.3)
=35.1+166.05
=201.15 inch²
I use the substitution method, but you can also use elimination and matrix
1. Solve for y in 3x+y=14
y=14-3x
2. Substitute y=14-3x into x+2y=3
-5x+28=3
3. Solve for x in -5x+28=3
x=5
4. Substitute x=5 into y=14-3x
y=-1
5. Therefore,
x=5
y=-1
Have a nice day :D
Step-by-step explanation:
you just need to put each in the calculator. I'm not so sure what an ALEKS calculator is
9ths answer. 113.112 ~ 113.1