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3 years ago

Write the standard form of an equation with p=12, phi=pi/4

Mathematics

2 answers:

Crank3 years ago

6 0

Answer:

Root 2x plus root 2y-24=0

Step-by-step explanation:

Step 1: Write this formula,

X Cosine Phi + Y Sine of Phi - P = 0

Step 2: input values for x,

X Cosine pi/4 = Root 2/2

Step 3: Input values for Y

Y Sine pi/4=Root 2/2

Step 4: Input P value into the equation

P=12

Step 5:Put the whole thing together

x Root 2/2+ Y Root 2/2-12=0

Take away the denominators and multiply p by 2

you'll get

Root 2X + Root 2Y - 24 =0

Romashka [77]3 years ago

3 0

Answer:

[ - x / 2 - √3 x / 2 - 5 = 0 ]

Step-by-step explanation:

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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

Joey is 5 years less than three times the age of his son. Joey is 43 years old.

Vikki [24]

Answer:

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Step-by-step explanation:

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3 years ago

The number line shows the graph of inequality.

Sophie [7]

Answer:

The first one is correct.

Step-by-step explanation:

-3.5 is inside of the shaded area of the line.

I hope this helps.

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2 years ago

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Answer:

Step-by-step explanation:

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Find d and the measure of each side of equilateral triangle KLM if KL=d+2, LM=12-d, and KM=4d-13

fiasKO [112]

Answer:

all sides are 7 units

Step-by-step explanation:

Since the triangle is equilateral then all 3 sides are equal in length

equate any 2 sides and solve for d

KL = LM

d + 2 = 12 - d ( add d to both sides )

2d + 2 = 12 ( subtract 2 from both sides )

2d = 10 ( divide both sides by 2 )

d = 5

KL = d + 2 = 5 + 2 = 7

LM = 12 - d = 12 - 5 = 7

KM = 4d - 13 = (4 × 5) - 13 = 20 - 13 = 7

4 0

3 years ago