3 years ago

Hiii please help i’ll give brainliest:)

Mathematics

1 answer:

djverab [1.8K]3 years ago

6 0

Answer:

Geographic features of ancient Greece.

Step-by-step explanation:

Greece has all of those attributes.

You might be interested in

Compare 4 × (8 – 3) and 32 – 12.

katrin [286]

Answer:

0, I hope this is what I was supposed to do!!!

Step-by-step explanation:

20-20

6 0

4 years ago

Read 2 more answers

Find 3+(-9) should you add or subtract 3 and 9? Why?

Anton [14]

For 3 + (-9), you should subtract 9 from 3. When you add a negative number it's the same thing as just subtracting said number. So, to solve this problem, you would change 3 + (-9) to 3 - 9, which is -6.

6 0

4 years ago

Which graph BEST represents the line of best fit for the scatterplot?

Vika [28.1K]

I would go with D :)

4 0

3 years ago

Read 2 more answers

The Bureau of Alcohol, Tobacco, and Firearms (BATF) has been concerned about lead levels in California wines. In a previous test

scoundrel [369]

Answer: 1015

Step-by-step explanation:

Given :In a previous testing of wine specimens, lead levels ranging from 50 to 700 parts per billion were recorded.

Here , Range = 700-50=650 [∵ Range = Max-Min]

According to the thumb rule , the range is approximately 4 times the standard deviation.

Let $\sigma$ be the standard deviation, then

$\text{Range}\approx4\times\sigma\\\\\Rightarrow\ \sigma\approx\dfrac{\text{Range}}{4}=\dfrac{650}{4}=162.5$

Thus, $\sigma\approx162.5$

For confidence interval of 95% , the critical z value = $z_{\alpha/2}=1.96$

Formula to find the sample size : $(\dfrac{z_{\alpha/2}\ \sigma}{E})^2$

Now, for the margin of error of E= $\pm 10$ , we have

$(\dfrac{1.96\times162.5}{10})^2=1014.4225\approx1015$

Hence, the required sample size = 1015

4 0

3 years ago

2,500+150m=3,000+125m

EleoNora [17]

  150m + 2500 = 125m + 3000
- 125m - 125m
25m + 2500 = 3000
   - 2500 - 2500
25m = 500
25   25
m = 20

7 0

4 years ago