Answer:
30=2*3*5, so it's 30
Step-by-step explanation:
15=3*5, so it's not 15
20=2*2*5, so it's not 20
30=2*3*5, so it's 30
57=19*3, so it's not 57
Answer:
3
-3
sqrt(9)
-sqrt(9)
Step-by-step explanation:
What number multiplied by itself will give you 9
3*3 =9
-3*-3 =9
sqrt(9) * sqrt(9) = sqrt(81) = 9
-sqrt(9) * -sqrt(9) = + sqrt(81) =9
Answer:
$8.67 per hour
Step-by-step explanation:
20,800/40 (hours per week)
520 (answer of above)/ 60 (minutes per hour)
P.S. i dont know if this is correct but i think it is
Think of it as 12/95. 12.63
Answer:
12.7 feet
Step-by-step explanation:
To solve this question, we use the trigonometric function of Sine
sin θ = Opposite side/Hypotenuse
θ = 42°
Hypotenuse = 19 foot ladder
Opposite side = Distance of the cat from the ground(height of the tree)= unknown
sin 42° = Opposite/19 feet
Opposite = sin 42° × 19
Opposite = 12.713481521 feet
Approximately to the nearest tenth of a foot = 12.7 feet.
Therefore, the cat was 12.7 feet above the ground.
