12/15 i hope this helps , 20 goes into one hour 3 times so i multiplied 4/5 x 3
B and D is correct
PS QT
GOOD LUCK
Answer:
13 °C
Step-by-step explanation:
You just ask yourself how you got from -6 to +7. So in other words, what plus -6 gets you 7. I know that 13-6=7. the aswer is 13°C.
hope this helps!!
Answer:
Step-by-step explanation:
Q2.
Q3.
V = (4,-3,5)
w = (2,6,-1)
z = (3,0,4)
u = 0.5 v - w + 2 z = 0.5 (4,-3,5) - (2,6,-1) + 2 (3,0,4)
= ( [0.5 * 4 - 2 + 2 *3] , [0.5*-3-6+2*0] , [0.5*5--1+2*4] )
= ( 6 , -7.5 , 11.5 )
The correct answer is option D