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3 years ago

The width of a rectangle varies inversely with its length. If the width is 4 when the length is 12, find

Mathematics

2 answers:

Murljashka [212]3 years ago

7 0

Answer:

Yg skg sms skg skg eksklusif

OlgaM077 [116]3 years ago

6 0

Answer:

The answer is 8 :)

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If 1 adult female is randomly selected, find the probability that her pulse rate is less than 76 beats per minute.

Anastaziya [24]

75/76 beats per minute, I think. Sorry if i'm wrong

6 0

3 years ago

The probability of an outcome that lies within 68% of the mean is a good indicator that it lies in which standard deviation?

Margaret [11]

Answer: C) There is a probability that the outcome is within 1 standard deviation of the mean.

Step-by-step explanation:

The Standard Deviation Rule states that for a normal distribution, nearly all of the data will fall within three standard deviations of the mean. According to the rule,

68% of data falls within the first standard deviation from the mean.

95% fall within two standard deviations.

99.7% fall within three standard deviations

Therefore, the correct answer is

C) There is a probability that the outcome is within 1 standard deviation of the mean.

8 0

3 years ago

In a certain manufacturing process, it is known that, on average, 1 in every 100 items is defective.

Rashid [163]

Answer:

A. 0.009899

B. 0.005624

Step-by-step explanation:

Data:

Let the probability that an item is defective = $\frac{1}{100}$

The probability that the item is not defective = $\frac{99}{100}$

The probability that the fifth item is defective = $\frac{1}{100}* \frac{98}{99}$

= 0.009899

Probability that one in 5 items is defective = 0.005624

5 0

4 years ago

What is the lateral area of the pyramid?

Aleks04 [339]

We have two triangles with base 9ft and height 12.3ft and two triangles with base 11ft and height 11.9ft.

The formula of an area of a triangle:

$A_\triangle=\dfrac{1}{2}bh$

Triangle #1:

b = 9ft and h = 12.3ft. Substitute:

$A_1=\dfrac{1}{2}(9)(12.3)=55.35ft^2$

Triangle #2:

b = 11ft and h = 11.9ft. Substitute:

$A_2=\dfrac{1}{2}(11)(11.9)=65.45ft^2$

The Lateral Area:

$L.A.=2A_1+2_A2\\\\L.A.=2(55.35)+2(65.45)=241.6\ ft^2$

<h3>Answer: B. 241.6 ft².</h3>

6 0

3 years ago

Read 2 more answers

A national health survey weighed a sample of boys aged - and found that of them were overweight. They weighed a sample of girls

user100 [1]

Answer:

From the above question, there is insufficient evidence to show that the proportion of boys who are overweight is more than the proportion of girls who are overweight.

Cheers!

7 0

3 years ago