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3 years ago

427 thousand as a scientic notation

Mathematics

2 answers:

Lerok [7]3 years ago

8 0

Answer:

427,000 = 4.27 * $10^{5}$

Step-by-step explanation:

Art [367]3 years ago

7 0

4.27 x 10^5 ........

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3(x+2)^2=48 with word steps

lesya692 [45]

Answer:

Divide both sides by 3.

(x+2)^2=16

Square root both sides.

x+2= ± 4 (plus OR minus, can be either so we have to include both)

Minus 2 from both sides.

x=-2 ± 4

Add and minus the 4 to -2.

x = -2-4 = -6 and x=-2+4 = 2

8 0

3 years ago

Read 2 more answers

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

3 years ago

What time is it.But not the time right now the time in your heart.

bonufazy [111]

Answer:

dead UnU

explanation:

who knows O_o

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3 years ago

7 is 28% of what number

zvonat [6]

25 hope it helps have a great day :)

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3 years ago

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The measure of _A is 18° greater than the measure of _B. The two angles are complementary. Find the

kozerog [31]

Answer:

angle A=54 degree

angle B =36 degree

Step-by-step explanation:

let angle B be x

angle A=x+18

since they are complementary angles sum of these two angles will be 90 degree

x+x+18=90

2x=90-18

2x=72

x=72/2

x=36 degree

substitute the value of x to find angle A and angle B

for angle A

x+18

36+18

54 degree

for angle B

angle B =x

=36 degree

4 0

3 years ago

427 thousand as a scientic notation ​

427 thousand as a scientic notation