Answer:
a) 23 errors
b) 250 wpm
c) 105 words
Step-by-step explanation:
a) 55 = (286 - 10e)
-286 -286
-231 = -10e
e = 23. 1 or 23 errors
b) S = (300 - 10(5))
= 300 - 50
S = 250
c) 65 = (w - 10(4))
65 = w - 40
105 = w
Hope this helps.
-2 ( 6 + s ) >_ -15 - 2s
We distribute the left side of the inequality.
-12 - 2s >_ -15 - 2s
Add 2s on both sides.
They cancel out, and we’re left with:
-12 >_ -15
This is surprisingly a true statement, so s = 0 in order for us to end up with this again.
Hopefully it’s right. Good luck!
The formula to use is the nCr combination formula
n C r = (n!)/(r!*(n-r)!)
where the exclamation marks indicate factorial notation
Plug n = 10 and r = 2 into the formula
n C r = (n!)/(r!*(n-r)!)
10 C 2 = (10!)/(2!*(10-2)!)
10 C 2 = (10!)/(2!*8!)
10 C 2 = (10*9*8!)/(2!*8!)
10 C 2 = (10*9)/(2!)
10 C 2 = (10*9)/(2*1)
10 C 2 = 90/2
10 C 2 = 45
Answer: 45
It would be 54675 squared yards because you would go around and do 3x3x5x3x5x3x3x9 you do the nine for the top 3+3+3