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3 years ago

Which is the graph of the system of inequalities

Mathematics

1 answer:

Leni [432]3 years ago

6 0

Answer:

Step-by-step explanation:

Try testing each graph by picking a point on the shaded region or none shaded region.

-1/5 and 6= y-intercept

4/5 and 2= slope

You may notice that it is in y-intercept form. So to find where the shaded region goes, test a coordinate and apply it to the equation, if the answer is false, than half of the line is not where the shaded region goes.

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A man is standing at a radar base and observes an unidentified plane at an altitude 6000m flying towards the radar base at an an

liubo4ka [24]

Answer:

The speed in of the plane is 115.47 m/sec

Step-by-step explanation:

Given:

Height at which the plane is flying = 6000 m

Angle of elevation at the radar base = 30 Degrees

Angle of elevation at the radar base after one minute = 60 Degrees

To Find:

The Speed of the plane in meter per second = ?

Solution:

Let us use the tangent of the angle to find the distance (d) to a point directly below plane:

when the angle is 30 degrees

$tan(30) = \frac{6000}{d1}$

$d1 = \frac{6000}{tan(30)}$

$d1 = \frac{6000}{0.577}$

d1 = 10392.3 meters

when the angle is 60 degrees

$tan(60) = \frac{6000}{d2}$

$d2 = \frac{6000}{tan(60)}$

$d2 = \frac{6000}{1.732}\\$

d2 = 3464.1 meters

distance travelled by aircraft in 1 min is

=>d1 - d2

=>0392.3 - 3464.1

= 6928.2 m/min

Now converting to m/sec

=> $\frac{6928.2}{60}$

=>115.47 m/sec

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3 years ago

What is the scale drawing? What is the scale of the new drawing? Explain.

natulia [17]

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19. A girl has four skirts and six blouses. How many different skirt-blouse combiNtions can she wear?

cupoosta [38]

4 combinations of skirt blouses

7 0

2 years ago

Irrational number between 3.077243 and 3.0721

Vikentia [17]

Answer:

3.066543

Step-by-step explanation:

This number is between 3.077243 and 3.0721

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3 years ago

I NEED HELP PLEASE! :)

labwork [276]

Answer:

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3 years ago

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