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matrenka [14]
3 years ago
6

HELP ME PLEASE!

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
3 0
(1.2×10^-3)/(4×10^6)
1.2/4=0.3
(10^-3)/(10^6)=10^-9

0.3×10^-9= 3×10^-10
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The length of the hypotenuse of a 30-60 -90 triangle is 14 units. what is the length of the short leg
kifflom [539]

Recall that the short leg is the side opposite the 30 degrees angle. And the ratio of the short leg to the hypotenuse is 1:2.

Let the length of the short leg be x, then,

\cfrac{x}{14}=\cfrac{1}{2}\\ \\\Rightarrow2x=14\\ \\\Rightarrow x=\cfrac{14}{2}=7

6 0
3 years ago
PLEASE HELP ME WITH THIS! EM SO CONFUSED
nekit [7.7K]

The answer would be the third choice

4 0
3 years ago
A group of students planned to chip in to raise a total of $100 for one of their friends’ birthday party but 5 persons couldn’t
lilavasa [31]

Answer:

$5

Step-by-step explanation:

Let the number of students be x, then

<u>Initial amount per student was:</u>

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<u>After it becomes:</u>

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<u>Since amount increased after, it can be shown as:</u>

  • 100/x + 1 = 100/(x - 5)

<u>Multiply each term by x(x - 5) to get rid of the fraction:</u>

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  • 100x - 500 + x² - 5x - 100x = 0
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<u>Positive solution of this quadratic equation is </u>

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8 0
3 years ago
64, 57, 50, 43,... 50th term​
tekilochka [14]

Answer:

-279

Step-by-step explanation:

a=64

d=t2-t1=57-64=-7

t50=a+49d=64+49×(-7)

=64-343

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5 0
2 years ago
The area of a rectangular city park is 25/54 square miles. The length of the park is 5/9 mile. What is the width, in miles, of t
Natali5045456 [20]
Area of rectangle = 24/54 square miles
length(L) = 5/9 miles
width (W)= ?
area = L * W
25/54 = 5/9 * W
W =  (25/54) / (5/9) = (25 * 9) / (54 * 5)
 W = 5/6 miles
5 0
3 years ago
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