You first convert everything to minutes
3hrs= 60x3=180mins
1hr= 60x1=60mins
then you add 20 to 180
200
and you also add 48 to 60
104
200-104=
96
Then you convert to hrs and mins
96-60=36
1hr 36mins
Answer:
54 minutes
Step-by-step explanation:
From the question, we are given;
- A room with dimensions 5.2 m by 4.3 m by 2.9 m
- The exchange air rate is 1200 L/min
We are required to determine the time taken to exchange the air in the room;
First we are going to determine the volume of the room;
Volume of the room = length × width × height
= 5.2 m × 4.3 m × 2.9 m
= 64.844 m³
Then we should know, that 1 m³ = 1000 L
Therefore, we can convert the volume of the room into L
= 64.844 m³ × 1000 L
= 64,844 L
But, the rate is 1200 L/min
Thus, time = Volume ÷ rate
= 64,844 L ÷ 1200 L/min
= 54.0367 minutes
= 54 minutes
Therefore, it would take approximately 54 minutes
Answer:
<h2>16.26</h2>
Step-by-step explanation:
Pythagorean Theorem | a^2 + b^2 = c^2
1) Plug in a & b
<h2>11^2 + 12^2 = c^2</h2>
2) Rewrite
<h2>c =
</h2>
3) Solve
<h2>c = 16.2788206</h2>
4) Round
<h2>16.26</h2>
Answer:
(x+4)^2 Choice A
Step-by-step explanation:
x^2 + 8x + 16
what 2 numbers multiply together to give you 16 and add together to give you 8
1*16 = 16 1+16 = 17 no
2*8 = 16 2+8 = 10 no
4*4 = 16 4+4 = 8 yes
(x+4) (x+4)
(x+4)^2
Answer:
wouldn't it be 40 if the opposite side is 40 ?
