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WARRIOR [948]
3 years ago
11

What is (2.3x10^-3)/(4.6x10^-7) written in scientific notation? Please show how you solved this.

Mathematics
1 answer:
lions [1.4K]3 years ago
5 0
(2.3*10^-3) / (4.6*10^-7)

(2.3*0.001) / (4.6*0.0000001)  *10^-3=0.001 & 10^-7=0.0000001*

(0.0023) / (0.00000046)   *2.3*0.001=0.0023 & 4.6*0.0000001=0.00000046*

5000  *0.0023/0.00000046*

So the answer is 5000
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Describe the motion of a particle with position (x, y) as t varies in the given interval. (For each answer, enter an ordered pai
DerKrebs [107]

Answer:

The motion of the particle describes an ellipse.

Step-by-step explanation:

The characteristics of the motion of the particle is derived by eliminating t in the parametric expressions. Since both expressions are based on trigonometric functions, we proceed to use the following trigonometric identity:

\cos^{2} t + \sin^{2} t = 1 (1)

Where:

\cos t = \frac{y-3}{2} (2)

\sin t = x - 1 (3)

By (2) and (3) in (1):

\left(\frac{y-3}{2} \right)^{2} + (x-1)^{2} = 1

\frac{(x-1)^{2}}{1}+\frac{(y-3)^{2}}{4} = 1 (4)

The motion of the particle describes an ellipse.

7 0
3 years ago
What is the surface area of the square pyramid represented by the net below?
4vir4ik [10]

Answer:

64 cm^2

Step-by-step explanation:

Square: 4*4 = 16

Triangles: 4((4*6)/2))

       = 4(24/2)

       = 4(12)

       = 48

Add the square and triangles together

       = 16 + 48

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The total will be 64 cm^2

6 0
4 years ago
Tic is an isosceles triangle with a vertex angle I. if the angle of I is 70. find the measure of t.
Colt1911 [192]
Angles of a triangle = 180 degrees
T + C = 110 degrees, and T=C (according to the definition of an isosceles triangle).
measure of T is 110/2 which equals 55 degrees
3 0
3 years ago
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3 years ago
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In a list of 100 numbers , the fraction of numbers greater than 15 is (19/25) and the fraction of numbers less than 15 is (7/50)
Bingel [31]
19/25 * 100 = 1900/25 = 76 ....numbers greater then 15
7/50 * 100 = 700/50 = 14....numbers less then 15

100 - (76 + 14) = 100 - 90 = 10 <== numbers equal to 15
6 0
3 years ago
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