-k-(-8k+7)
Distribute the negative sign
-k+8k-7
Combine like terms
7k-7
Nothing further can be done with this equation so the answer is: 7k-7
Simple,
1.) A vertical angle, is an angle directly across another angle. Thus, <2 and <5 are vertical angles.
2.)This is another pair of vertical angles, thus, m<4 is 53.
3.)Since m<1 is 50
You have the m<4 which is 50. You already have m<3 which is the right angle, 90.
Thus, 90+50=140
You know a line is supposed to be 180 degrees. So take,
180-140=40
Thus, the m<5 is 40.
Answer:
19, 24
Step-by-step explanation:
the pattern adds one then adds five
+1, +5, +1, +5, on and on
6+1 is 7
7+5 is 12
12+1 is 13
13+5 is 18
18+1 is 19
19+5 is 24
First question seems incomplete :
Answer:
40 ways
Step-by-step explanation:
Question B:
Number of boys = 6
Number of girls = 4
Number of people in committee = 3
Number of ways of selecting committee with atleast 2 girls :
We either have :
(2 girls 1 boy) or (3girls 0 boy)
(4C2 * 6C1) + (4C3 * 6C0)
nCr = n! ÷ (n-r)!r!
4C2 = 4! ÷ 2!2! = 6
6C1 = 6! ÷ 5!1! = 6
4C3 = 4! ÷ 1!3! = 4
6C0 = 6! ÷ 6!0! = 1
(6 * 6) + (4 * 1)
36 + 4
= 40 ways
Not 100 % but I would think as likely as not because you have the same amount of both. 1/2 the chance
