3/8 × 4/11 = three eighths times four elevenths
2 answers:
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Answer:
The butterfly travels 660 ft in 1.25 min.
Step-by-step explanation:
If the distance, d, a butterfly flies varies directly as the time,t in the air, then we can write the mathematical statement.
If we introduce the constant of proportionality, we obtain;
According to the question, when ,
.
We substitute these values to obtain;
The direct variation equation now becomes
When
Therefore the butterfly will travel 660 ft in 1.25 min.
Answer: 245 feet
Step-by-step explanation:
Given: The height of the rocket after t seconds is represented by the formula:
[Differentiate both sides w.r.t. t]
Put
Also, i.e. height is maximum at t=7.
Maximum height =
Hence, the maximum height the rocket reaches = 245 feet.
Answer:
AB ≈ 6.71
Step-by-step explanation:
Calculate the length using the distance formula
d =
with (x₁, y₁ ) = A (- 1, 6) and (x₂, y₂ ) = B (5, 3)
AB =
=
=
=
=
≈ 6.71 ( to 3 significant figures )