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Vinvika [58]
3 years ago
9

Help me problems! asap 1-7

Mathematics
1 answer:
Westkost [7]3 years ago
7 0
Multiply the triangles then divide to find the missing number
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Please can I get an explanation, please!!
nekit [7.7K]

Find the inverse of

y = \left( \dfrac 1 5 \right)^x

For the inverse we swap x and y and solve for y.

x = \left( \dfrac 1 5 \right)^y

Taking logs base 1/5

\log_{1/5} x = y

f^{-1}(x) = \log_{1/5} x

Answer: Second Choice

Note: There's more simplification to do but we'll stop here.

7 0
3 years ago
Help me out thank you, i rlly need help !!
Arturiano [62]

Answer:

7.7km

Step-by-step explanation:

6 0
3 years ago
Which of the following are one-dimension and have infinite length
noname [10]

Answer:

Lines

Step-by-step explanation:

Lines are one dimensional and continue to infinity in both directions.

7 0
3 years ago
Julia invested $4,000.00 in a mutual fund with the simple interest rate of 3.5% per year. How much interest would she earn after
Harman [31]
Multiply the intrest rate per year by 2 then subtract that number from 4,000. You will get the answer of $3.93 after 2 years.
6 0
3 years ago
Read 2 more answers
A report includes a statement that the​ "average" test score of applicants to medical schools is 28.4. What is the role of the t
qaws [65]

Answer:

See explanation below.

Step-by-step explanation:

The average is measure of central tendency that is also called sample mean and is calculated from the following formula:

\bar X = \frac{\sum_{i=1}^n X_i}{n}

This is an estimator of the population mean and is unbiased since the expected value for the estimator is the same parameter as we can see here:

E(\bar X)=\frac{\sum_{i=1}^n E(X_i)}{n} =\frac{n\mu}{n}=\mu

And is important because is the most common measure of central tendency reported on any study.

Is important to remember that this measure can be affected by outliers , for this case when we have outliers is better use the median as a measure of central tendency

7 0
3 years ago
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