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m_a_m_a [10]
3 years ago
9

Help please thank you ;)

Mathematics
1 answer:
yawa3891 [41]3 years ago
8 0
The answer should be -192. I could explain in the comments if you would like. :)
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Please help! Will give points!!<br><br> -Which Function is Exponential?
LiRa [457]

Answer:

It should be C

Step-by-step explanation:

B is a quadratic function and A is a linear line.

4 0
2 years ago
The length of an instant message conversation is normally distributed with a mean of 5 minutes and a standard deviation of .7 mi
Charra [1.4K]

The <em><u>correct answer</u></em> is:

0.0764

Explanation:

We will use a z-score to answer this.  The formula for a z-score is

z=\frac{X-\mu}{\sigma}, where μ is the mean and σ is the standard deviation.  Using our information in this problem, we have

z=\frac{6-5}{0.7}=\frac{1}{0.7}=1.43

Using a z-table, we look up the z-score 1.43.  The area under the curve to the left of, or less than, this value is 0.9236.  This means the probability that the time is greater than this is 1-0.9236 = 0.0764.

7 0
3 years ago
Read 2 more answers
Which function is the inverse of f(x)= B^X
Scrat [10]

Answer:

Step-by-step explanation:

Let's retype that as y = b^x.  The inverse of this function is log    y = x  

                                                                                                        b

which you could also write as  y = ln     x

                                                             b

If you had y = e^x, the inverse function would be y = ln x.

Note that if you let ln x be the input to y = e^x, the result would be just 'x,' which confirms that these two functions are inverses of one another.

8 0
4 years ago
What is the circumference of a circle with a radius of 20 units
Kaylis [27]

Answer:

125.66

Step-by-step explanation:

C = 2πr = 2·π·20 = 125.66371

5 0
2 years ago
A rectangular fish tank is 50 cm long, 40 cm wide, and 30 cm high.
zzz [600]

Answer:

a) 60,000 cubic cm

b)600,000 cubic mm

c)60 L

Step-by-step explanation

To find the volume, you would have to multiply the height length and width.

50*40*30 and that equals to 60,000 cm. 10 mm=1cm.

So 60,000*10=b, b=600,000,  1,000 cm=1 L

60,000/1,000=L, L=60

Hope this helps. If it does, please rate 5 stars!

8 0
3 years ago
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