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3 years ago

2.5 x 13.7 4.9 + 1.6 Write down your full calculator displ

Mathematics

1 answer:

viktelen [127]3 years ago

3 0

Answer:

2.5 x 13.7 = 34.25

4.9 + 1.6 = 6.5

Step-by-step explanation:

Here we are multiplying 2 decimals we can just write it as

$25 * 10^{-1} * 137 * 10^{-1}$

= $25*137*10^{-2}$

= $3425 *10^{-2}$

= 34.25

Here we are just performing simple addition

4.9 + 1.6

= $49 *10^{-1} +16*10^{-1}$

= $(49+16)*10^{-1}$

= $65 * 10^{-1}$

= 6.5

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2 years ago

Read 2 more answers

60 POINTS BRAINLIEST

Mariana [72]

60 POINTS BRAINLIEST

ANSWER QUESTIONS A B & C

PHOTO ATTACHED BELOW !!!!

A) Using the given spreadsheet as a basis, discuss the usefulness of a standard

deviation in a given dataset. You need to cite any literature sources you use.

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PLEASE HELP DUE TODAY!!60 POINTS BRAINLIEST

ANSWER QUESTIONS A B & C

PHOTO ATTACHED BELOW !!!!

A) Using the given spreadsheet as a basis, discuss the usefulness of a standard

deviation in a given dataset. You need to cite any literature sources you use.

B) Produce an appropriate fully-labeled chart to compare the gold, silver and

bronze medals totals of the 10 countries.

C) Use a suitable and fully-labeled chart to reflect the contribution of each

country to the overall medals total.

PLEASE HELP DUE TODAY!!60 POINTS BRAINLIEST

ANSWER QUESTIONS A B & C

PHOTO ATTACHED BELOW !!!!

A) Using the given spreadsheet as a basis, discuss the usefulness of a standard

deviation in a given dataset. You need to cite any literature sources you use.

B) Produce an appropriate fully-labeled chart to compare the gold, silver and

bronze medals totals of the 10 countries.

C) Use a suitable and fully-labeled chart to reflect the contribution of each

country to the overall medals total.

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3 years ago

Read 2 more answers

To save money, a local charity organization wants to target its mailing requests for donations to individuals who are most suppo

Naya [18.7K]

Answer:

$(0.55525, 1.24475)$

Step-by-step explanation:

Given that to save money, a local charity organization wants to target its mailing requests for donations to individuals who are most supportive of its cause.

Men women

Sample size 5 5

Mean rate 6.2 5.3

Mean diffference = $6.2-5.3=0.9$

Std error for difference = 0.25 (given)

Since we have two groups and also sample sizes are very small we can use t significant value for finding out confidence interval

df = 5+5-2 =8

t critical value for 80% two tailed = 1.397

Conf interval 80%

= $(0.9-1.397*0.25, 0.9+1.397*0.25)\\= (0.55525, 1.24475)$

4 0

3 years ago