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2 years ago

What is 3.1 × 10 1 in standard form

Mathematics

2 answers:

myrzilka [38]2 years ago

7 0

Answer:

3.45 x 10^5

Step-by-step explanation:

1.3×100=1.3

poizon [28]2 years ago

4 0

Answer:

Step-by-step explanation:

1.3×100=1.3

in standard form.

Explanation:

In scientific notation, we write a number so that it has single digit to the left of decimal sign and is multiplied by an integer power of

10.

In other words, in scientific notation, a number is written as

a ×10n, where 1≤a<10 and n is an integer and 1≤a< 10.To write the number in normal or standard notation one just needs to multiply by the power

10n(or divide if n is negative). This means moving decimal

n digits to right if multiplying by

10n and moving decimal n digits to left if dividing by 10n

(i.e. multiplying by 10−n).

In the given case, as we have the number as

1.3×100, we need not move decimal digit to either side and hence in standard notation 1.3×100=1.3 itself.

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The set of life spans of an appliance is normally distributed with a mean mu = 48 months and a standard deviation sigma = 8 mont

navik [9.2K]

Using the normal distribution, it is found that the life span of an appliance that has a z-score of –3 is of 24 months.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean $\mu$ and standard deviation $\sigma$ is given by:

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

The z-score measures how many standard deviations the measure is above or below the mean.

Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

In this problem, the parameters are given as follows:

$\mu = 48, \sigma = 8, Z = -3$ .

Hence:

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

$-3 = \frac{X - 48}{8}$

X - 48 = -24

X = 24.

The life span of an appliance that has a z-score of –3 is of 24 months.

More can be learned about the normal distribution at brainly.com/question/24663213

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6 0

1 year ago

Find the volume of a rectangular box having width 8 ft, length 4,313 ft, and height 2,628 ft

LenaWriter [7]

You use the area for volume length times width times high
8x4313x2628

5 0

3 years ago

Nvm. ...................

MA_775_DIABLO [31]

Answer:

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Step-by-step explanation:

well thanks for the free points :)

6 0

2 years ago

What is the area of this figure? Please help.

Ad libitum [116K]

The area of the composite figure can be found by summing the whole area that made up the figure. Therefore, the area of the figure is 213.5m²

<h3>Area of a composite figure</h3>

The area of the composite figure is the sum of the area of the whole figure.

Therefore, the composite figure can be divided into 2 triangles and two rectangles.

Hence,

area of triangle1 = 1 / 2 × 10 × 13 = 65 m²

area of the triangle2 = 1 / 2 × 15 × 7 = 52.5 m²

area of the rectangle1 = 8 × 3 = 24 m²

area of rectangle2 = 7 × 6 = 42 m²

area of rectangle3 = 5 × 6 = 30 m²

Therefore,

area of the composite figure = 65 + 52.5 + 24 + 42 + 30 = 213.5 meters squared

learn more on area here: brainly.com/question/27744042

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8 0

1 year ago

In triangle ABC, a = 4, b = 6, and cos C = − 1/4. What is the length of side c?

shusha [124]

The length of side c would be 8.

Step-by-step explanation:

Given that,

a = 4

b = 6

cosC = -1/4

If we are given two sides and angle, the law of Cosines can be used to find the third side:

$c^{2} = a^{2} + b^{2} - 2ab (cos(c))$

By inserting the values in the formula, we get

$c^{2} = 4^{2} + 6^{2} - 2.4.6 (-\frac{1}{4} )$

$c^{2} = 16 + 36 + 12$

$c^{2} = 64$

$\sqrt{c^{2} } = \sqrt{64}$

c = 8.

Therefore, the length of side c would be 8.

7 0

2 years ago