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navik [9.2K]
3 years ago
7

When you add a positive integer and a negative integer, how can you tell whether the sum will be positive or negative?

Mathematics
2 answers:
Marysya12 [62]3 years ago
7 0

Answer:

it's going to be negative

Zigmanuir [339]3 years ago
7 0

Answer:

its negative

Step-by-step explanation:

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What is the value of w?
natulia [17]
This on is very easy go to my website so i can explain it better for you

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3 years ago
How much difference do a couple of weeks make for birth weight? Late-preterm babies are born with 34 to 36 completed weeks of ge
stiks02 [169]

Answer:

a) 0.3277

b) 0.0128

Step-by-step explanation:

We are given the following information in the question:

N(2750, 560).

Mean, μ = 2750

Standard Deviation, σ = 560

We are given that the distribution of distribution of birth weights is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

a) P (less than 2500 grams)

P(x < 2500)

P( x < 2500) = P( z < \displaystyle\frac{2500 - 2750}{560}) = P(z < -0.4464)

Calculation the value from standard normal z table, we have,  

P(x < 2500) = P(z < -0.4464) = 0.3277 = 32.77\%

b) P ((less than 1500 grams)

P(x < 1500)

P( x < 1500) = P( z < \displaystyle\frac{1500 - 2750}{560}) = P(z < -2.2321)

Calculation the value from standard normal z table, we have,  

P(x < 1500) = P(z < -2.2321) = 0.0128 = 1.28\%

3 0
2 years ago
Is (3,7) A solution why or why not?
galben [10]
What? Can you attach a photo?
6 0
2 years ago
Read 2 more answers
Zoe jogs 3/4 of a mile every 1/5 of an hour.
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Answer:

15/4 please let me know if this helped you :)

Step-by-step explanation:

0.75*5=3.75 or 15/4

all of your answers are less than 3/4ths of a mile...she is increasing the amount she runs not decreasing.

3 0
2 years ago
What is 2.5 in simplest form
vfiekz [6]
2.5 still if you make it a fraction it would be 2 and 1 1/2 so you can't simplify that any more
6 0
3 years ago
Read 2 more answers
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