2 years ago

Simplify the expression. Write the answer using scientific notation.

1 answer:

8 0

We are given with two distances: 5,880,000,000,000 miles and 15.8 light-years. we convert first the light-years distance through the speed of light : 3 x 108 m/s. v = d/t; d = 3x10 8 m/s * 15.8 light years * 31536000 s = 1.4948 x1017 m = 9.28829 x 1013 miles. The difference thus is 8.70029 x 1013 miles

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Can anyone help me plz tell me the answer

charle [14.2K]

Answer:

Step-by-step explanation:

-8x^2 - 12 + 7x^2 - 9x + 3

-x^2 - 9x - 9

4 0

3 years ago

How many ways can a president, vice-president, secretary, and treasurer be chosen from a club with 8 members?

MrMuchimi

$_8C_4=\dfrac{8!}{4!4!}=\dfrac{5\cdot6\cdot7\cdot8}{2\cdot3\cdot4}=70$