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torisob [31]
2 years ago
6

How do you write the scientific notation of 230

Mathematics
2 answers:
MA_775_DIABLO [31]2 years ago
6 0

230 is written as 2.3 × 10^2
myrzilka [38]2 years ago
3 0
Move the decimal point to the right side of 2= 2.30 The number of times that you moved the decimal point shows the exponent. So 2.30*10^2 is 230 in scientific notation
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Is the area of ABC round to the nearest tenth
svlad2 [7]
Hi there!

Since we know that this is a right isosceles triangle, we can use the 45-45-90 relationship to figure out the missing side lengths. Using this relationship, we know that the two marked sides are both equal to 5 inches. Next, we need to use the formula to find the area of a triangle, which is A = 1/2(b * h). We know that the base of this triangle is 5, as is the height. All we need to do is plug in the numbers and solve: A = 1/2(5 * 5) | A = 1/2(25) | A = 12.5 inches^2. 

Hope this helps!! :)
If something doesn't make sense or if there's anything else that I can help you with, please let me know!
5 0
3 years ago
Which group of numbers includes only composite numbers?
Oksi-84 [34.3K]

Answer: 4, 6, 8, 9 and 10

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8 0
2 years ago
If a manufacturer conducted a survey among randomly selected target market households and wanted to be 95​% confident that the d
katen-ka-za [31]

Answer:

We need a sample size of least 119

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

Sample size needed

At least n, in which n is found when M = 0.09

We don't know the proportion, so we use \pi = 0.5, which is when we would need the largest sample size.

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.09 = 1.96\sqrt{\frac{0.5*0.5}{n}}

0.09\sqrt{n} = 1.96*0.5

\sqrt{n} = \frac{1.96*0.5}{0.09}

(\sqrt{n})^{2} = (\frac{1.96*0.5}{0.09})^{2}

n = 118.6

Rounding up

We need a sample size of least 119

6 0
3 years ago
Please help!
Fittoniya [83]
1.) The answer is Letter A - the credit monitoring <span>service alerts you when there is a change in your credit report.

2.) The answer is Letter D - </span><span>Financial software can do all of the following except applying for loans.

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Check Register:
Total = 397.45 - 50.32 - 16.32 + 190.67
Total = 521.48

Online Statement:
Total = 486.44 - 84.80 - 19.73 - 16.32 + 190.67
Total = 556.26

Difference = online - check register
Difference = 34.78

4.) The answer is 206.99. On 11/10 and 11/18, check and online have the same transactions (same date, same amount) which are 16.32 and 190.67. Add them together to get 206.99
</span>
5 0
2 years ago
Read 2 more answers
Need help with this quetsion plz quick
ioda
Line 1 is in q1 and line 2 is q4
3 0
3 years ago
Read 2 more answers
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