This is a quadratic equation. There's a shortcut (two shortcuts really) called the Shakespeare Quadratic Formula (2b or -2b) applicable when the middle term is even:
OK, our problem is
Typically we'd write 
but the answers here don't so we won't either.
Answer: C and D
Answer:
2.5 * 10^-27.
Step-by-step explanation:
(2 x 10^13)^-2
= 2^-2 x 10^-26
= 1/2^2 x 10^-26
= 0.25 x 10^-26
= 2.5 * 10^-27.
Answer:
2 7/10
Step-by-step explanation:
3/4+3/5=
Common Denominator: 20
Multiples of 4: 4, 8, 12, 16, 20
Multiples of 5: 5, 10, 15, 20
3x5=15
4x5=20
15/20
3x4=12
5x4=20
12/20
15/20+12/20= 27/20 = 2 7/10
Answer:
D) 30
Step-by-step explanation:
1/2 in. = 3 ft.
5" = 10 x 1/2"
10 x 1/2" = 10 x 3'
5" = 30'
Answer:
$220.875
Step-by-step explanation:
For 1 hour you get $7.75
To find how much money you make in 28.5 hours... you multiply the number of hours with the number of dollars.
28.5 * 7.75
$220.875
