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Burka [1]
3 years ago
6

I WILL MARK BRAINLIEST!!!!!!

Mathematics
2 answers:
Firdavs [7]3 years ago
5 0
For this , you use the distance formula
. based on the graph, use points (0,6) and (7,-2), plug them into the formula to get
\sqrt{113}
and you get B, 10.63

Grace [21]3 years ago
5 0

Answer: 10.63

Step-by-step explanation:

use Distance formula points (0,6) and (7,-2), and you get square root of 113 so that is B, 10.63

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Four lawn sprinkler heads are fed by a 1.9-cm-diameter pipe. The water comes out of the heads at an angle of 35° above the horiz
klemol [59]

Answer:

Step-by-step explanation:

Given:

Angle, θ = 35°

Vertical distance, Δx = 6 m

Diameter, d = 1.9 cm

= 0.019 m

A.

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

Vo = 7.91 m/s

B.

Area of sprinkler, As = πD²/4

Diameter, D = 3 × 10^-3 m

As = π × (3 × 10^-3)²/4

= 7.069 × 10^-6 m²

V_ = volume rate of the sprinkler

= area, As × velocity, Vo

= (7.069 × 10^-6) × 7.91

= 5.59 × 10^-5 m³/s

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

= 0.224 liters/s

C.

Area of 1.9 cm pipe, Ap = πD²/4

= π × (0.019)²/4

= 2.84 × 10^-4 m²

Volumetric flowrate of the four sprinklers = 4 × 5.59 × 10^-5 m³/s

= 2.24 × 10^-4 m³/s

Velocity of the water, Vw = volumetric flowrate/area

= 2.24 × 10^-4/2.84 × 10^-4

= 0.787 m/s

7 0
3 years ago
Read 2 more answers
Question<br> 9<br> What is the circumference of a circle whose diameter is ?<br> 2
ZanzabumX [31]

6.28 because pi x diameter = circumference.

( diameter = half of a circle)

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
2/3(3/5x+9)=1/2(2x+40)<br><br> I posted this before but w/o the 1/2 on accident
andriy [413]
The answer and working are shown in the photo below
5 0
3 years ago
I need help please and thank you
Ede4ka [16]

680 exponent 3. you have to multiply and divide so..... yea

3 0
3 years ago
What is the equation for the line of reflection <br>a. x= 3 <br>b. y = 3 <br>c. y = x <br>d. x = 6​
Stells [14]

Answer:

The answer to that question is c. y = x

8 0
3 years ago
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