Falling at the rate of 2.5 m/s for 45 seconds, the anchor fell
(2.5 m/s) x (45 s) = 112.5 meters .
If it wound up only 40 meters underwater, then it must have fallen
(112.5 m - 40 m) = 72.5 meters
from its storage position on the big cruise ship,
before it ever reached the water.
Since it was falling at the rate of 2.5 m/s, it took
(72.5 m) / (2.5 m/s) = 29 seconds
to get down to the water surface after it started dropping.
Answer:
5 √ 10 + 2 √ 5 ft high
Step-by-step explanation:Explanation:
Let h be the height to which latter of length of 20 ft reach then using Sine formula in right triangle with hypotenuse 20 & vertical leg h & opposite acute angle 0 = 72∘ sin θ =h 20 sin 72∘= h 20
h
=
20
sin
(
90
∘
−
18
∘
)
=
20
cos
18
∘
=
20
(
√
10
+
2
√
5
4
)
=
5
√
10
+
2
√
5
We are given that the dimensions are 4 in x 9 in. To get
the smallest possible square, first let us find for the LCM of 4 and 9.
4 = 0, 4, 8, 12, 16, 20, 24, 28, 32, 36
9 = 0, 9, 18, 27, 36
We can actually see that 36 is the least common multiple.
Therefore the smallest possible square has a dimension of:
<span>36 inches by 36 inches</span>
Answer:
3.375 cm²
Step-by-step explanation:
To find the area of a parallelogram, all we have to do is multiply the base by the height which are 2.25 and 1.5 respectively. Therefore, our answer is 2.25 * 1.5 = 3.375 cm².
Answer:
total profit gained = 20%
Step-by-step explanation:
profit = SP - CP = 18 - 15 = 3 naira
total profit percentage =
- ( profit / CP ) × 100
- 3 / 15 × 100
- 20%
hence her total percentage gain was 20%
