All categories

3 years ago

Please I need help. Answer with examples I am so confuzzled!

Mathematics

1 answer:

Marianna [84]3 years ago

4 0

Sorry not sure about this

You might be interested in

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

4 0

2 years ago

(3x^4)-5=43 How?? It's supposed to be - 2?

Sergeeva-Olga [200]

Answer:

I got 2 as an answer

Step-by-step explanation:

$( {3x}^{4} ) - 5 = 43 \\ ( {3x}^{4} ) = 43 + 5 \\ ( {3x}^{4} ) = 48 \\ \frac{ {3x}^{4} }{3} = \frac{48}{3}$

${x}^{4} = 16 \\ \sqrt[4]{ {x}^{4} } = \sqrt[4]{16} \\ x = 2$

6 0

3 years ago

What is the volume of the cube in cubic feet? please help

motikmotik

Answer:

512

Step-by-step explanation:

since its a cube, all the side lengths are even, so its just 8^3 or 8*8*8

8 0

3 years ago

-24 divided by x + 12 to the second when x= -14

ELEN [110]

Answer:12

Step-by-step explanation:

3 0

2 years ago

The triangle shown in the graph is transformed by matrix R. Plot the resulting triangle.

DerKrebs [107]

Answer:

I cant Im sorry

Step-by-step explanation:

5 0

2 years ago