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Lorico [155]
3 years ago
14

A submarine sits at –300 meters in relation to sea level. Then it descends 115 meters. What is its new position in relation to s

ea level?
Mathematics
1 answer:
Dovator [93]3 years ago
7 0

Answer:

-415 feet

Step-by-step explanation:

-300-115 = -415

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Write the equation of the line in point-slope form.<br><br> (-3,2) and (-1,-2)
tester [92]

Answer:

y=-2x-4

Step-by-step explanation:

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3 years ago
A plastic sun visor allows light to pass through but reduces the intensity of the light. the intensity is reduced by 5% if the p
irinina [24]

Answer: The equation is f(x) = 0.95^{x};

The piece of plastic has to have 10mm of thickness.

Step-by-step explanation: It is known that with 1 mm of thickness, 5% of the intensity is reduced. So, 95% of the light is transmitted.

For each milimetre added, "more" 95% of light is transmitted.

For example, if another milimetre of plastic is added, another 0.95 of light is transmitted:

0.95.0.95 = 0.9025 of light reach the visor

So, the model that relate thickness of plastic and intensity of light is:

f(x) = 0.95^{x}

in which:

f(x) is the intensity of light;

x is thickness in mm;

Using the equation, the thickness necessary to reduce intensity to 60% is:

f(x) = 0.95^{x}

0.6 = 0.95^{x}

log 0.6 = log 0.95^{x}

x. log (0.95) = log (0.6)

x = \frac{log 0.6}{log 0.95}

x = 9.95

x ≈ 10

The thickness necessary to reduce intensity of light to 60% is 10mm.

6 0
3 years ago
Read 2 more answers
The water under a draw bridge was 15 feet deep at midnight. As the tide went out, the
Vsevolod [243]

Answer:

80 minutes or 1 h 20 minutes

Step-by-step explanation:

15-13=2

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So we can conclude that it takes 80 minutes till it reaches 13 feet.

7 0
3 years ago
The coordinates of point Care<br> A. (3,-1)<br> B. (1, -3)<br> C. (3,1)<br> D. (-3,1)<br> E. (-3,-1)
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D (-3,1) hopes this helps
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3 years ago
How many numbers are equal to the sum of two odd, one digit numbers
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Here is a list of the odd number paired

1+3, 1+5, !+7, and !+9  (there are 4 unique sums - 4, 6,8 and 10)
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5+7, 5+9  (the only new sum is 14)
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The sums (no repeats) are 4,6,8,10,12,14 and 16 for a total of seven numbers.
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3 years ago
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