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Grace [21]
3 years ago
14

100 is 19% of what number?

Mathematics
1 answer:
larisa [96]3 years ago
8 0

Answer: 526.32

Formula: 100 x 100 / 19

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At the grocery store, Emily notices that it costs
Dmitriy789 [7]

Answer:

4.34

Step-by-step explanation:

2.48/40=0.062 per ounce

0.062 x 70 = 4.32 for 70 ounces

4 0
3 years ago
How to solve y = 8x - 9
Alex Ar [27]

Answer:

-72

Step-by-step explanation:

The answer is -72 because 8 * -9 = -72, I can't explain it to you any other way ;-;

6 0
3 years ago
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Which property is used in the following expression? 2 x 3 = 3 x 2
posledela

Answer:

because i learned it in class 2 years ago

Step-by-step explanation:

b. Associative Property of Multiplication

7 0
2 years ago
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PLEASE HELP ME IM TAKING TIMED TEST I WILL MARK YOU AS BRAINLEST!!
stepladder [879]

Answer:

-4.5,-0.5,0.3,0.7,2.3

Step-by-step expla

7 0
3 years ago
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A quantity x has cumulative distribution function p(x) = x − x2/4 for 0 ≤ x ≤ 2 and p(x) = 0 for x < 0 and p(x) = 1 for x &gt
34kurt
F_X(x)=\begin{cases}0&\text{for }x2\end{cases}

Recall that the PDF is given by the derivative of the CDF:

f_X(x)=\dfrac{\mathrm dF_X(x)}{\mathrm dx}=\begin{cases}1-\dfrac x2\\\\0&\text{otherwise}\end{cases}

The mean is given by

\mathbb E[X]=\displaystyle\int_{-\infty}^\infty x\,f_X(x)\,\mathrm dx=\int_0^2\left(x-\dfrac{x^2}2\right)\,\mathrm dx=\frac23

The median is the number M such that F_X(x)=\mathbb P(X\le M)=\dfrac12. We have

F_X(M)=M-\dfrac{M^2}4=\dfrac12\implies M=2\pm\sqrt2

but both roots can't be medians. As a matter of fact, the median must satisfy 0\le M\le2, so we take the solution with the negative root. So M=2-\sqrt2 is the median.
3 0
3 years ago
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