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kotegsom [21]
3 years ago
7

Help and it’s 20 points

Mathematics
2 answers:
lutik1710 [3]3 years ago
8 0

Answer:

b and d

Step-by-step explanation:

a=-4

b=-2

c=0

d=2

-2 is the opposite of 2

0 im not so sure about, because the opposite of a number is the negative (or positive) of that number. So for every other number, say 10, the opposite is -10, so we would say -0 is the opposite of 0, but -0 isnt a number. So, b and d are the correct answers

svlad2 [7]3 years ago
8 0

Answer:

b and d

Step-by-step explanation:

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taurus [48]

Answer:

Time of murder = 10:39 am

Step-by-step explanation:

Let the equation of exponential function representing the final temperature of the body after time 't' is,

f(t) = a(e)^{nt}

Here, a = Initial temperature

n = Constant for the change in temperature

t = Duration

At 11:30 am temperature of the body was 91.8°F.

91.8 = 98.6(e)^{nt} --------(1)

Time to reach the body to the morgue = 12:30 pm

Duration to reach = 12:30 p.m. - 11:30 a.m.

                              = 1 hour

Therefore, equation will be,

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eⁿ = \frac{84.4}{91.8}

ln(eⁿ) = ln(0.9194)

n = -0.08403

From equation (1),

91.8 = 98.6(e)^{-0.08403t}

(e)^{0.08403t}=\frac{98.6}{91.8}

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0.08403t = 0.07146

t = 0.85 hours

t ≈ 51 minutes

Therefore, murder was done 51 minutes before the detectives arrival.

Time of murder = 11:30 - 00:51

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7 0
2 years ago
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SashulF [63]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
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3 years ago
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Answer:

She worked 18 hours of overtime.

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3 0
3 years ago
Solve In (2x+3)=7 round to the nearest thousandth
e-lub [12.9K]
To solve this problem you must apply the proccedure shown below:

 1. You have:
<span>
 In(2x+3)=7

 2. Then, you must apply log(e), as below:
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