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3 years ago

6) Which choice is equivalent to the expression shown?-5(2r - 6p) + 3(4r-3p)

Mathematics

1 answer:

makvit [3.9K]3 years ago

3 0

Answer:

3(4r-3p)

Step-by-step explanation:

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0.00000000005 in scientific notation

marta [7]

It can be written as 5 x 10^ -11 or 0.5 x 10^ -10

Hope it helps.

4 0

3 years ago

Solve for the value of z.

Yuki888 [10]

z=18

3z+4+2z-4+90=180

5z+4-4+90=180

5z+90=180

5z=90

z=18

4 0

2 years ago

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

PLEASE HELP

Alexeev081 [22]

Its may be A or C
i am not sure just try to help

4 0

2 years ago

What is 9847.04 rounded to the nearest hundreth

Ainat [17]

It's already rounded to the nearest hundredth. Hundredth's place is the position of the second digit to the right of to the decimal point.

5 0

3 years ago

6) Which choice is equivalent to the expression shown?-5(2r - 6p) + 3(4r-3p)​

6) Which choice is equivalent to the expression shown?-5(2r - 6p) + 3(4r-3p)