(4.4x10^-6)x(3.9x10^2) in correct scientific notation

Mathematics

1 answer:

ddd [48]3 years ago

5 0

Answer:

1.716*10^-3

Step-by-step explanation:

(4.4*10^-6)*(3.9*10^2)=0.001716

To convert 0.001716, we need to move the decimal places three places to the right to make sure the number is between 1 and 10. Moving three places to the right makes the exponent negative.

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I don’t get it this ain’t make no sense

Arturiano [62]

Answer:

65 m

Step-by-step explanation:

u = 6 m/s

v = 20 m/s

t = 5 s

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$s=\frac{1}{2} (26)5$

$s=(13)5$

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2 years ago

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find point p that divides segment AB into a 2:3 ratio. The point should be closer to A. A(-3,1) and B(3,5)

Mademuasel [1]

First, work out how much you need to add to A's x and y coordinates in order to get to point B from point A.

So (using Ax to mean x-coordinate of A, Ay the y-coordinate of A, etc):
x-difference = Bx - Ax = 3 - (-3) = 3 + 3 = 6
y-difference = By - Ay = 5 - 1 = 4

Now, if the point divides the segment AB in the ratio 2:3, then it is 2/(2+3) of the way along the line AB.

i.e. it is 2/5 of the way along the line AB.

We therefore need to add 2/5 of the x- and y-differences to point A to get point p:
px = Ax + (2/5)*(x-difference) = -3 + (2/5)*6 = -3 + 12/5 = -15/5 + 12/5 = -3/5 = -0.6
py = Ay + (2/5)*(y-difference) = 1 + (2/5)*4 = 1 + 8/5 = 5/5 + 8/5 = 13/5 = 2.6

Therefore coordinates of p are (-0.6, 2.6)

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3 years ago

-2.8 repeating as a fraction

Marizza181 [45]

0.8888888 = 8/9
2.8888888 = 26/9
-2.888888 = -26/9

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3 years ago

Question text<br><br>If x − 2 = 1/3, then what is the value of x to the power of 2 − 4x + 4?

TiliK225 [7]

Answer: 1/9

Step-by-step explanation:

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