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3 years ago

somebody help pls Complete the table by filling in the multiplicative inverse of the numbers below 2,1/5,-4,

Mathematics

1 answer:

Yakvenalex [24]3 years ago

7 0

Answer:

Suppose we have a random number A.

The multiplicative inverse of A is a number X such that:

A*X = 1

When we work with real numbers, X = 1/A

Then:

A*(1/A) = A/A = 1

This means that (1/A) is the multiplicative inverse of A.

Where we need to have A ≠ 0, because we can not divide by 0.

Now we want to find the multiplicative inverse of the numbers:

2: Here the inverse is (1/2) = 0.5

1/5: Here the inverse is (1/(1/5)) = (5/1) = 5

-4: Herre the inverse is (1/(-4)) = -(1/4) = -0.25

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"A sample of 30 randomly selected oranges was taken from a large population, and their diameters were measured. The mean diamete

Yuki888 [10]

Answer:

The lower bound of the interval is 88.9mm and the upper bound is 93.1mm.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.85}{2} = 0.075$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.075 = 0.925$ , so $z = 1.44$

Now, find M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.44*\frac{8}{\sqrt{30}} = 2.1$

The lower end of the interval is the sample mean subtracted by M. So it is 91 - 2.1 = 88.9mm.

The upper end of the interval is the sample mean added to M. So it is 91 + 2.1 = 93.1 mm

The lower bound of the interval is 88.9mm and the upper bound is 93.1mm.

6 0

3 years ago

Please help me on this ratio question I'm stuck

Pavlova-9 [17]

24/6=4
(6x4)+(2x4)+(3x4)=
24+8+12=44=answer!

5 0

3 years ago

I do not know the second point

Elden [556K]

Answer:

y = 1250

Step-by-step explanation:

$y = 10 * 5^{x}$

x = 3

y = y

Substitute x into equation

$y = 10 * 5^{3}$

Simplify $5^{3}$

y = 10 * 125

y = 1250

Hope this helps :)

3 0

3 years ago

Please help me understand how to solve thus problem and answer the questions

Ratling [72]

Answer:

y = |x-2|

Step-by-step explanation:

the basic function is |x|, (I'm going to assume that you should have learned this in class by now, and you need to know that to continue

anyways, y = |x| is what you would normally see, with the center on (0,0)

however, this has been translated 2 units to the right, and based on translation rules, right-left shifts are unit shifts within the x parentheses so, y = |x-2|

if you dont believe me plug it into an online graphing calculator

hope this helps

4 0

2 years ago

Read 2 more answers

Find the area of the composite figure

yuradex [85]

Answer:

The area is 189 square meter.

Step-by-step explanation:

In this figure we have one square of 7 meter sides and one rectangle of 20 meter length and 7 meter of width.

Area of a square = side²

area of a rectangle = Length × width

Area of the square = 7² = 7 × 7 = 49 meter²

Area of the rectangle = 20 × 7 = 140 meter²

Area of the composite figure = 49 + 140

= 189 meter²

The area is 189 square meter.

6 0

3 years ago

Read 2 more answers

somebody help pls Complete the table by filling in the multiplicative inverse of the numbers below 2,1/5,-4,​

somebody help pls Complete the table by filling in the multiplicative inverse of the numbers below 2,1/5,-4,