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3 years ago

2. What are the next two terms of the following sequence?-2,4,-8, 16, ...

Mathematics

2 answers:

dolphi86 [110]3 years ago

4 0

Answer:

It's the geometric sequence so the following numbers are:

-32,64

d= -2(multiplication number)

Answer: i did not fully understand,since there are two similar answer options(it's wether A or B)

Good luck!

Intelligent Muslim,

From Uzbekistan.

Marat540 [252]3 years ago

3 0

Answer:

Step-by-step explanation:

$-2\\(-2)(-2)=4\\(-2)(4)=-8\\(-2)(-8)=16\\-----------------\\(-2)(16)=-32\\(-2)(-32)=64\\\vdots$

Each next term is created by multiplying the previous term by (-2).

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3 years ago

Suppose that birth weights are normally distributed with a mean of 3466 grams and a standard deviation of 546 grams. Babies weig

Anon25 [30]

Answer:

3.84% probability that it has a low birth weight

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:

$\mu = 3466, \sigma = 546$

If we randomly select a baby, what is the probability that it has a low birth weight?

This is the pvalue of Z when X = 2500. So

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$Z = \frac{2500 - 3466}{546}$

$Z = -1.77$

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3 years ago

The scale of a room in blueprint is 3in 5ft. A wall in the same blueprint is 18in. what are the actual room measurements?

QveST [7]

Answer:

Actual length of wall = 30ft

Step-by-step explanation:

We have scale of a room as 3 inch for 5ft.

We can write scaling factor as:

Scaling factor = 3 /60 (Since 5ft = 60 inches )

Scaling factor = 1/20

Now,

a wall in the blueprint is 18inch.

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Answer:

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