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3 years ago

Qual a resposta dessa expressão numérica? 3-10³-3.10².2².1²

1 answer:

6 0

I don't understand your language and I don't know which language is this but I try to answer your question. 3-1000-3*100*4*1 3-1000-1200 3-2200 =-2197

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You leave a 15% tip of $3.12. How much was the bill?

dangina [55]

Answer:

$3.61 cents

Step-by-step explanation:

Given the following question:

15% of 3.12

To find the answer we use the formula to calculate percentages, then we add that answer to the initial bill.

$\frac{p\times n}{100}$
$\frac{15\times3.12}{100} =15\times3.12=46.8\div100=0.468$
$=0.468$

<u>Round:</u>
$0.468$
$8 > 5$
$0.47$
$t=0.47$

<u>Now add:</u>
$3.14+0.47=3.61$
$=3.61$

After leaving a 15% tip, the total amount you would pay is "$3.61 cents."

Hope this helps.

6 0

2 years ago

Round 12 to the nearest ten

vagabundo [1.1K]

It's going to be 10 because it's closer to ten

7 0

4 years ago

Read 2 more answers

Help meh please i need hell

serg [7]

Answer:

1 3/8

Step-by-step explanation:

5 0

3 years ago

Wood shipping boxes are often recommended over cardboard shipping boxes because its strength tends to be higher, therefore, maki

yanalaym [24]

Answer:

16% is the percent of wooden shipping boxes will have breaking strengths greater than 520 pounds per square inch.

Step-by-step explanation:

We are given the following information:

Mean = 500 pounds

Standard Deviation = 20 pounds

Empirical rule:

The empirical rule also known as the three-sigma rule or 68-95-99.7 rule
It is a statistical rule which states that for a normal distribution, almost all data falls within three standard deviations (denoted by σ) of the mean (denoted by µ).
It shows that 68% falls within the first standard deviation that is $\mu \pm \sigma$

About 95% of the data lies within the first two standard deviations that is $\mu \pm 2\sigma$

About 99.7% of the data lies within the first three standard deviations that is $\mu \pm 3\sigma$

We have to find the percent of its wooden shipping boxes that will have breaking strengths greater than 520 pounds per square inch.

Now,

$520 = 500 + 1(20)$

According to empirical rule around 68% of the data will lie between $500 \pm 1(20)= (480,520)$

Thus, 34% of data lies between 500 and 520.

Data lying above 520 = 50% - 34% = 16%

16% is the percent of wooden shipping boxes will have breaking strengths greater than 520 pounds per square inch.

3 0

3 years ago

Sara's earnings vary directly with the number of hours she works. The data is shown in the graph. If x = number of hours worked,

Jlenok [28]

There’s no graph attached but the answer will either be A or B

8 0

3 years ago

Read 2 more answers