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3 years ago

Two ways to estimate 12÷478

Mathematics

1 answer:

rjkz [21]3 years ago

5 0

By dividing you get 0,025 which you can transform into 1/40

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The temperature was 6° C.<br> By how much has it fallen if it is now -5° C?

Butoxors [25]

Answer:

11 °C

Step-by-step explanation:

Initial temperature = 6 °C
Final temperature = - 5°C
Change in temperature

= 6 - (-5)

= 6 + 5

= 11 °C

Hope it helps you in your learning process.

8 0

2 years ago

Read 2 more answers

When a number x is multiplied by 9, the result is 3/5 • what is the value of x

Debora [2.8K]

Setup the equation from the words as follows:

√

3x/5

Simplify this to:

0=x(5x−3)

Since we are toldx≠0,x=3/5.

7 0

3 years ago

A random sample of 10 shipments of stick-on labels showed the following order sizes.10,520 56,910 52,454 17,902 25,914 56,607 21

sammy [17]

Answer:

Confidence Interval: (21596,46428)

Step-by-step explanation:

We are given the following data set:

10520, 56910, 52454, 17902, 25914, 56607, 21861, 25039, 25983, 46929

Formula:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{340119}{10} = 34011.9$

Sum of squares of differences = 551869365.6 + 524322983.6 + 340111052.4 + 259528878 + 65575984.41 + 510538544 + 147644370.8 + 80512934.41 + 64463235.21 + 166851472.4 = 2711418821

$S.D = \sqrt{\frac{2711418821}{9}} = 17357.09$

Confidence interval:

$\mu \pm t_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 9 and}~\alpha_{0.05} = \pm 2.2621$

$34011.9 \pm 2.2621(\frac{17357.09}{\sqrt{10}} ) = 34011.9 \pm 12416.20 = (21595.7,46428.1) \approx (21596,46428)$

7 0

3 years ago

If 938 employees of which 533 provide customer service what percentage supply sales support from that 938

NNADVOKAT [17]

Answer:

533/938 = .56 = 56%

Step-by-step explanation:

If helps mark as brainllest hope it helps!!!

4 0

3 years ago

6x-21>3 and 14x+11>-17

Delicious77 [7]

6x-21>3
Add 21 to both sides
6x>24
Divide 6 on both sides
X>4

14x+11>-17
Subtract 11 from both sides
14x>-28
Divide 14 on both sides
X<-2

8 0

3 years ago