<span>3.00 X 10^8 m/s...
so, the light travels 1.08 X 10^12 m/h , 3.00 X 10^5 km/s and
8.33 X 10^7 km/h.
[ 3.00 X 10^8 * 3600 ; (there are 3600 seconds in an hour)
= 10800 X 10^8 m/s
= 1.08 X 10^12 m/h ]
</span>
--------------------------------------------------
Change each of the options into percentage
---------------------------------------------------
--------------------------------------------------
Option A: Decimal to percentage: x100
---------------------------------------------------
0.14 x 100 = 14%
--------------------------------------------------
Option 2: Fraction to percentage: x100
---------------------------------------------------
5/7 x 100 = 71.4%
--------------------------------------------------
Option C: Fraction to percentage: x 100
---------------------------------------------------
12/5 x 100 = 240%
--------------------------------------------------
Option D: Decimal to percentage: x 100
---------------------------------------------------
1.4 x 100 = 140%
--------------------------------------------------
Answer D
---------------------------------------------------
Answer:
-7 or 4
Step-by-step explanation:
use foil to get the quadratic equation:
x^2+5x-2x-10=18
x^2+3x-10=18
bring "18" to the left:
x^2+3x-10-18
x^2+3x-28
so what*what= -28
and
what+what=3
factors of -28: -7,4 -4,7 14,-2 -14,2 -28,1 -1,28
factors whose sum is 3: 7,-4
so substitute "7,-4" in place of 3:
x^2+7x-4x-28
2) split it in two groups
group 1) x^2+7x
group 2) -4x-28
x^2+7x has a GCF of "x"
x(x+7)
group 2) -4x-28 has a gcf of "-4"
-4(x+7)
3) (x-4) (x+7)=0
x-4=0
x=4
x+7=0
x=-7
x=4,-7
Hope this helps!
Frank has the lowest typing speed, at only 39.5 words per minute.
Tara has 40.3 wpm
Georgie has 40 wpm
Lupe had 40.5 wpm
