Answer:
C
Step-by-step explanation:
Given a line with slope m then the slope of a line perpendicular to it is
= -
Given the slope of the red line is 4 , then the slope of the green line is
m = - → C
A line is 180 so you subtract 126 with 180 and get 54. Since a Triangle angles all equal 180 together you add 54 and 43 and subtract 180 and the answer is 83
Answer:
18
Step-by-step explanation:
product means the sna=swer of a multiplication problem, so 9x2=18
The first partner in the handshake can be any one of 15 people.
The second partner can be any one of 14 people.
So the total number of possible arrangements is (15 x 14) = <u>210</u> .
<em><u>BUT . . . .</u></em>
If Mr. Smith and Mr. Jones are shaking hands, it doesn't matter which one is the first partner and which one is the second partner ... It's the same handshake either way.
That number of ' <u>210</u> ' up above counted both ways separately. The real number of handshakes <em>between different people</em> is half of that 210/2 = <em>105 handshakes</em>.
Answer:
The volume is ten(10)and the surface is also ten(10)