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nikklg [1K]
3 years ago
5

Is -4/-5 positive or negative

Mathematics
2 answers:
pentagon [3]3 years ago
7 0

Answer:

i believe its positive because 2 negatives make a positive

Allushta [10]3 years ago
6 0

Answer:

Positive

Step-by-step explanation:

A negative divided by a negative can cancel out to make a positive. So, \frac{-4}{-5} = \frac{4}{5}.

I hope this helps!

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Laboratory experiment shows that the life of the average butterfly is normally distributed with a mean of 18.8 days and a standa
inessss [21]

Answer:

a) 0.4164

Step-by-step explanation:

Mean lifespan (μ) = 18.8 days

Standard deviation (σ) = 2 days

For any given lifespan 'X', the z-score is:

z=\frac{X- \mu}{\sigma} \\z=\frac{X- 18.8}{2}

For X=12.04 days:

z=\frac{12.04 - 18.8}{2} \\z=-3.38

A z-score of -3.38 falls in the 0.036-th percentile of a normal distribution.

For X=18.38 days:

z=\frac{18.38 - 18.8}{2} \\z=-0.21

A z-score of -3.38 falls in the 41.68th percentile of a normal distribution.

The probability that a butterfly lives between 12.04 and 18.38 days is

P=41.68-0.036\\P=41.64\%\ or\ 0.4164

6 0
3 years ago
How can 38/6 be expressed as a decimal?
seraphim [82]
38/6 = 19/3
divide 19 by 3 :-

= 6.333....

The 3 is recurring
8 0
3 years ago
Find the sum. Do not round.<br><br> 39.882 + 11.03 =
lukranit [14]
The answer is 50.912

3 0
3 years ago
Read 2 more answers
K is the midpoint of JL. JK = 2x + 5 and JL = 50.
Sergeu [11.5K]
Steve set the equation equal to 50 which is the entire length of JL. instead he should've set the equation equal to 25, since it's half of 50 and would represent the midpoint. he should've said 2x + 5 = 25
8 0
2 years ago
Help me please asap
abruzzese [7]

Answer:

So the right answer is none

Step-by-step explanation:

-6≤1+3x

3x≥-7

x≥-2,33

-2,33>-5>-6>-11

so none of those are bigger then -2,33 and x is bigger then -2,33

3 0
2 years ago
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