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jeka94
3 years ago
14

A triangle has sides of length 3 cm, 7 cm, and 5 cm. What kind of triangle is this?

Mathematics
2 answers:
sergey [27]3 years ago
8 0

Answer:

Scalene triangle. Three sides of different measurements

Step-by-step explanation:

nasty-shy [4]3 years ago
8 0

Answer:

Right Angle Triangle or Scalene Triangle

Step-by-step explanation:

Right Angle Triangle coz

Base 3cm, Height 5cm and Hypotenuse 7cm

Scalene Triangle coz all the lengths are not equal...

I hope u understand it :-:-):-)

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Nesterboy [21]

Answer:

30/50

Step-by-step explanation:

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3 0
3 years ago
A doctor is measuring the mean systolic blood pressure of female students at a large college. Systolic blood pressure is known t
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Answer:

The correct option is (b).

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for population mean (<em>μ</em>) is:

CI=\bar x\pm z_{\alpha/2}\times\frac{SD}{\sqrt{n}}

The confidence interval for population mean can be computed using either the <em>z</em>-interval or <em>t</em>-interval.

The <em>t</em>-interval is used if the following conditions are satisfied:

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  • The sample size is large enough
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For computing a (1 - <em>α</em>)% confidence interval for population mean , it is necessary for the population to normally distributed if the sample selected is small, i.e.<em>n</em> < 30, because only then the sampling distribution of sample mean will be approximated by the normal distribution.

In this case the sample size is, <em>n</em> = 28 < 30.

Also it is provided that the systolic blood pressure is known to have a skewed distribution.

Since the sample is small and the population is not normally distributed, the  sampling distribution of sample mean will not be approximated by the normal distribution.

Thus, no conclusion can be drawn from the 90% confidence interval for the mean systolic blood pressure.

The correct option is (b).

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At combs store there is a 25% chance a customer enters the store within one minute of closing time. Describe the complementary e
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The complementary event is that a customer does not enter the store within one minute of closing, and the probability is 75%.

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