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2 years ago

Please help! thanks :)

Mathematics

2 answers:

12345 [234]2 years ago

6 0

Answer:

7.2 hrs

Step-by-step explanation:

divide 24 by 100 than multiply it by 30 to get the answer.

klasskru [66]2 years ago

5 0

Answer:

x = 7.2 hours

Step-by-step explanation:

We can set up a proportion

Let x = 30% of the day

30/100 = x/24 Cross multiply

720 = 100x Divide by 100 on both sides

x = 7.2

I hope this helped and please mark me as brainliest!

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klemol [59]

Answer:

Step-by-step explanation:

Given:

Angle, θ = 35°

Vertical distance, Δx = 6 m

Diameter, d = 1.9 cm

= 0.019 m

When the water leaves the sprinkler, it does so at a projectile motion.

Therefore,

Using equation of motion,

(t × Vox) = 2Vo²(sin θ × cos θ)/g

= Δx = 2Vo²(sin 35 × cos 35)/g

Vo² = (6 × 9.8)/(2 × sin 35 × cos 35)

= 62.57

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Area of sprinkler, As = πD²/4

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As = π × (3 × 10^-3)²/4

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= area, As × velocity, Vo

= (7.069 × 10^-6) × 7.91

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Remember,

1 m³ = 1000 liters

= 5.59 × 10^-5 m³/s × 1000 liters/1 m³

= 5.59 × 10^-2 liters/s

= 0.0559 liters/s.

For the 4 sprinklers,

The rate at which volume is flowing in the 4 sprinklers = 4 × 0.0559

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3 years ago

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Answer the 2 odd numbers are 19 and 21.

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3 years ago

If two points on a line are A(10, −3) and B(12, 9), the rise is __________, and the run is __________, so the slope of the line

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Answer:

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