3 years ago

Hailey's plane climbed 4,500 feet in 90 seconds. How fast did her plane climb every second?

Mathematics

1 answer:

Stolb23 [73]3 years ago

4 0

Answer:

4590 it is 4590

Step-by-step explanation:

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6.The perimeter of a rectangle whose length is 7.5cm and breadth 3.75cm

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Answer:

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Step-by-step explanation:

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HELP WITH THIS QUESTION PLEASE!

belka [17]

Answer:

23.7°

9.1~ft

Step-by-step explanation:

Formula for the area of a sector of central angle n (in degrees) and radius r:

$A = \dfrac{n}{360^\circ}\pi r^2$

We have:

A = 100 ft^2

r = 22 ft

We need to find:

$100 = \dfrac{n}{360^\circ}\pi (22^2)$

$n = 23.7^\circ$

The central angle measures 23.7°.

Formula for the length of an arcs of a circle with central angle n (in degrees) and radius r:

$s = \dfrac{n}{360^\circ}2 \pi r$

We have:

n = 23.7°

r = 22 ft

We need to find:

$s = \dfrac{74.4}{360}2 \pi (22 ft)$

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3 years ago

If z varies jointly with x and y, x = 2 and y = 2, z = 7. Find z when x = 4 and y = 8.

Wittaler [7]

Answer:

Step-by-step explanation:

z varies jointly with x and y:

z = kxy

When x = 2 and y = 2, z = 7.

7 = k(2)(2)

k = 7/4

z = 7/4 xy

When x = 4 and y = 8:

z = 7/4 (4)(8)

z = 56

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3 years ago

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