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4 years ago

I NEED HELP THIS IS DUE IN 15 mins PLSSS SOMEBODY HELP ME!!!!!

Mathematics

1 answer:

Lera25 [3.4K]4 years ago

8 0

Answer:

$Standard \: form :\:y= {x}^{2} - 4x - 5\\Factored\: from:\:y = (x + 1) (x - 5)$

Step-by-step explanation:

$y = (x - 2)^{2} - 9 \\ y= {x}^{2} - 4x + 4 - 9 \\ \red{ \boxed{ \bold{y= {x}^{2} - 4x - 5}}} \\ is \: in \: standard \: form \\ \\ y = (x - 2)^{2} - 9 \\ y = (x - 2)^{2} - {3}^{2} \\ y = \{(x - 2) + 3\} \{(x - 2) - 3 \} \\ y = \{x - 2 + 3\} \{x - 2- 3 \} \\ \purple{ \boxed{ \bold{y = (x + 1) (x - 5)}}} \\ is \: in \: factored \: form$

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If two fair dice are rolled, what is the probability that the total showing is either even or less than nine?

Gemiola [76]

Answer:

1/2 and 13/18 respectively

Step-by-step explanation:

even-number results:

2, 4 6 ,8, 10 and 12

the combinations of each result are respectively

1+3+5+5+3+1 = 18

The total number of combinations on a roll pair is 36

then the probability of obtaining an even result is:

p = 18/36 = 1/2 or 0.5

so that the result is less than nine, we eliminate the combinations of results 9, 10, 11 and 12:

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the probability of obtaining a result less than nine is:

p = 26/36 = 13/18 or 0.72

Hope this helps

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2 years ago

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Answer:

Explanation:

The distance between the two points on the ground = 43km

$\text{Scale}=\frac{1}{25000}$

First, we calculate the distance between the two points in meters.

• 43km = 43,000 m.

Next, determine the distance it will take using the scale.

$\begin{gathered} \frac{1}{25000}=\frac{x}{43000} \\ 25000x=43000 \\ x=\frac{43000}{25000} \\ x=1.72m \end{gathered}$

The distance between the points using the scale is 1.72m.

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As a final check, calculate the length of the diagonal of the map. The diagonal is usually the longest part.

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Step-by-step explanation:

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4 years ago

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