Answer:
3rd graph
Step-by-step explanation:
3m ≥ 21 whenever you see '≤ or ≥' then you know the circle must be filled
divide each side by 3 to isolate 'm':
m ≥ 7 This inequality, when graphed, should have a closed circle on the number 7 and the shading would be to the right because the symbol is indicates all values "greater than" 7
Answer:
Cliff is 45 m tall.
Step-by-step explanation:
Given:
Height of Sarah = 1.8 m
Angle of elevation = 60°
Angle of elevation 50 m back = 30°
As shown in the figure we have two right angled triangles SPQ and SPR.
Let the height of the cliff be 
meters and 
.
Using trigonometric ratios:
tan (Ф) = opposite/adjacent
In ΔSPQ. In ΔSPR.
⇒ 
...equation (i) ⇒ 
...equation (ii)
Dividing equation (i) and (ii)
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
meters
To find 
plugging in equation (i)
⇒ 
⇒ 
⇒ 
meters
The height of the cliff from ground :
⇒
⇒ 
⇒ 
meters
The cliff is 45 m tall to the nearest meter.
Answer:
0.9 liters.
Step-by-step explanation:
The difference between 20% of 3 and 50% of 3 is 30%. 30% of 3 liters is 0.9 liters so this is what you add to can A.
Answer:
13.75
OR
14
Step-by-step explanation:
55 calories are burned an hour while sleeping
There's 60 minutes in an hour
55/60 = 0.916666667
there's 0.916666667 calories burned in a minute
13.75 calories are burnt in 15 minutes.
If you round 13.75, it becomes 14.
Answer:
I notice in the compensation strategy it's much simpler than basic subtraction.
Step-by-step explanation:
Just say that ;)
