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3 years ago

What is a description of Morokweng Crater, South Africa (Africa)

Mathematics

1 answer:

Cloud [144]3 years ago

6 0

Answer:

The Morokweng crater is an impact crater buried beneath the Kalahari Desert near the town of Morokweng in the Northwest Province of South Africa, close to the border with Botswana

Step-by-step explanation:

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What is the length of the hypotenuse in the right triangle shown below? 45° 45 6

IrinaVladis [17]

Answer:

option A

Step-by-step explanation:

let the hypotenuse be x

take 45 degree as reference angle and use cos rule

cos 45 = adjacent/hypotenuse

1/ $\sqrt{2$ = 6/x

do cross multiplication

6* $\sqrt{2$ = x *1

6 $\sqrt{2}$ = x

8 0

3 years ago

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5) Placido pulls a rope attached to a wagon through a pulley at a rate of q m/s. With dimension as in Figure 5:

Damm [24]

The formula for the speed of the wagon can be found by using Pythagoras theorem, and chain rule of differentiation.

$(a) \ \mathrm{The \ speed \ of \ the \ wagon} , \ \dfrac{dx}{dt} = q -\dfrac{x}{\sqrt{x^2+ 5.76}}$

(b) When x = 0.6 and q = 0.5 m/s, the speed of the wagon is approximately 0.243 m/s.

Reasons:

(a) The distance from the cart to the pulley, r is given by Pythagoras's

theorem as follows;

r = √((3 - 0.6)² + x²) = √(2.4² + x²)

The speed of the wagon = $\mathbf{\dfrac{dx}{dt}}$

The speed of the rope, q = $\mathbf{\dfrac{dr}{dt}}$

By chain rule, we have;

$\dfrac{dr}{dt} = \mathbf{\dfrac{dr}{dx} + \dfrac{dx}{dt}}$

$\dfrac{dr}{dx} = \dfrac{x}{\sqrt{x^2+ 5.76}}$

Therefore;

$\dfrac{dr}{dt} = q =\dfrac{x}{\sqrt{x^2+ 5.76}}+ \dfrac{dx}{dt}$

$\mathrm{The \ speed \ of \ the \ wagon} , \ \dfrac{dx}{dt} = \underline{ q -\dfrac{x}{\sqrt{x^2+ 5.76}}}$

(b) The speed of the wagon when x = 0.6 if q = 0.5 m/s is given as follows;

$\dfrac{dx}{dt} = 0.5 -\dfrac{0.6}{\sqrt{0.6^2+ 5.76}} =\sqrt{\dfrac{1}{17} } \approx 0.243$

The speed of the wagon when x = 0.6 and q = 0.5 m/s, $\dfrac{dx}{dt}$ ≈ 0.243 m/s

Learn more here:

brainly.com/question/17081984

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2 years ago

2. Find the perimeter and area of a square with a 7-ft side.

Rina8888 [55]

Answer:

Step-by-step explanation:

Perimeter 4L = 28

Area L^2 = 49

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3 years ago

High Voltage Gymnasium holds a contest to see who can climb a rock wall the fastest. The table below shows a climber's time in m

sveticcg [70]

Answer: yes

Step-by-step explanation: think about it

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2 years ago

I need help! Thanks!

tigry1 [53]

Its a , i had it yesterday and i got everything right dont worry :))

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3 years ago

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