Will mark as branilest and heart if help

Mathematics

1 answer:

Natali5045456 [20]3 years ago

3 0

Answer:

Step-by-step explanation:

as the easiest way to calculate without the help of a calculator ¯\_(ツ)_/¯

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Identify the slope of the line passing through the pair of points (5,2) and (-2,1). *(1point)

olga nikolaevna [1]

Answer:

m= 1/7

Step-by-step explanation:

To solve for slope: y2- y1/ x2- x1 so,

1-2/ -2-5

= -1/ -7

= 1/7

8 0

3 years ago

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11 A freezer was set at -4.5°F then lost power for 2 hours. In that

sergey [27]

Answer:

-0.8⁰F

You subtract 3.7 from 4.5 and you get 0.8 and you add a negative sign because -4.5 is bigger than positive 3.7

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3 years ago

What is the correct way to write 1.002 in expanded and word form?

olasank [31]

The digits after the decimal separator are, in order, tenths, hundreths and thousandths. So, your number is composed by:

1 unit
0 tenths
0 hundreths
2 thousandths

So, you would call this name "one and two thousandths"

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3 years ago

The pregnancy length in days for a population of new mothers can be approximated by a normal distribution with a mean of 270 day

dusya [7]

Answer:

a) 281 days.

b) 255 days

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 270, \sigma = 8$