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Mathematics

1 answer:

photoshop1234 [79]2 years ago

7 0

Answer:

It has gone -160 miles.

Step-by-step explanation:

To find the answer we will multiply -40 by 4 hours, and we get -160 miles. Therefore, the car has traveled -160 miles.

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Lewa's hiking backpack weighs 5 pounds less than 1/2 the weight of alani's hiking backpack write an expression to describe the w

aleksandrvk [35]

A(1/2)-5=L is what I came up with.

5 0

3 years ago

Read 2 more answers

A girl obtained 32.8 marks in nepali and failed by 7.2 marks. What was the pass marks of the subject?

adoni [48]

Answer:

40 marks was the pass marks of the subject.

Step-by-step explanation:

32.8 + 7.2 = 40 marks { basic addition theory based }

8 0

2 years ago

Systolic Blood Pressure Assume that the mean systolic blood pressure of normal adults is 120 millimeters of mercury and the stan

liq [111]

Answer:

0.1425 = 14.25% probability that the individual's pressure will be between 119.4 and 121.4mmHg.

Step-by-step explanation:

When the distribution is normal, we use 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 question, we have that:

$\mu = 120, \sigma = 5.6$