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Bogdan [553]
3 years ago
7

What is the sum of -12 1/2 +4 1/2

Mathematics
1 answer:
Rufina [12.5K]3 years ago
8 0

Answer:16 2/4

Step-by-step explanation:

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Choose the correct answer to classify each equation or situation below as exponential growth or decay.
inn [45]

Answer:

Exponential Decay

Step-by-step explanation:

Because 7/8 is less than 1, it is exponential decay

5 0
3 years ago
Apparently I'm supposed to do one at a time so here we go again
Nat2105 [25]
A) 60mph
B) 209.7 miles
C) 2 hours and 45 minutes
3 0
3 years ago
A microgram is equal to 2.3 x 10 grams. How many times greater than a microgram is
vovikov84 [41]

Answer:

yes the aswure is no

Step-by-step explanation:

8 0
3 years ago
7^8 divide by 7y =7^6 find the value of y
lisabon 2012 [21]
Answer: y = 7

Explanation:

7^8/7y = 7^6
7^7/y = 7^6
In order for 7^7 to become 7^6 you need to divide by 7

Which mean y = 7

So that:
7^7/7= 7^6
7^6 = 7^6
7 0
3 years ago
A wildlife preserve features a crocodile with a documented age of 24 years, believed to be one of the oldest crocodiles in capti
zysi [14]

Answer:

0.0104

Step-by-step explanation:

Given that, the lifespans of crocodiles have an approximately Normal distribution, with a mean of 18 years and a standard deviation of 2.6 years.

So, mean, \mu=18

and standard deviation, \sigma=2.6

The z-score, for any arbitrary life span of  x year, is given by

z=\frac{x-\mu}{\sigma}

By using the given values, we have

z=\frac{x-18}{2.6} \cdots(i)

The z-score for x=24, by using equation (i), is

z=\frac{24-18}{2.6}=\frac{6}{2.6}=2.31

From the table, the area to the left side of z=2.31 =0.98956

But, the proportion of crocodiles have lifespans of at least 24 years

= Area to the right side of the z=2.31

=1- (Area to the left side of the z=2.31)

=1-0.98956

=0.01044

So, the proportion of crocodiles that have lifespans of at least 24 years is 0.0104.

Hence, option (a) is correct.

5 0
2 years ago
Read 2 more answers
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