4 years ago

The line y= -x + 3 best models which of the following scatter plots?

Mathematics

1 answer:

earnstyle [38]4 years ago

3 0

Answer:

Step-by-step explanation:

Since we have a negative slope, that means the correlation for the scatter plot also has to be negative.

Since the only scatter plot that has a negative correlation is graph A, a is our answer.

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A map scale is 1 inch:50 miles. Two cities are 450 miles apart. How far apart are the cities on the map

ArbitrLikvidat [17]

450÷50=9
Your answer would be 9inches because all you have to do is divide 450 by 50 and you get the number of inches

5 0

3 years ago

0.000000000051304 in scientific notation?<br> Ixl

Grace [21]

Answer:

5.1304 x 10^14

Step-by-step explanation:

there is 10 zeros behind the decimal point plus 4 other decimal places

in a scientific notation the number has to be less then 10 but more then 1

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3 years ago

You move up 4 units and right 2 units. You end at (-1, 3). Where did you start?

Delicious77 [7]

Answer:

at the begining

Step-by-step explanation:

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3 years ago

Read 2 more answers

The half-life of Radium-226 is 1590 years. If a sample contains 200 mg, how many mg will remain after 1000 years?

adell [148]

Answer: 129.33 g

Step-by-step explanation:

$$$Let $p=A \cdot e^{n t}$ \\$(p=$ present amount, $A=$ initial amount, $n=$ decay rate, $t=$ time)$

$\begin{aligned}&\Rightarrow \text { Given } p=\frac{A}{2} \ a t \ t=1590 \\&\Rightarrow \frac{1}{2}=e^{1590n} \Rightarrow n=\frac{\ln (1 / 2)}{1590}=-0.00043594162\end{aligned}$

$If $A=200 \mathrm{mg}$ and $t=1000$ then,$$\begin{aligned}P &=200 e^{\left(\frac{\ln \left(1/2\right)}{1590}\right) \cdot 1000} \text \\\\&=129.33 \text { grams}\end{aligned}$