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4vir4ik [10]
4 years ago
14

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:

4 + 3 + 2 + 1 = 10

36 -10 = 26

the probability of obtaining a result less than nine is:

p = 26/36 = 13/18 or 0.72

Hope this helps

5 0
2 years ago
Two points are separated on the ground by a distance of 43 km. Can they be placed on a 1 / 25000th map with dimensions 1.32 m on
Wittaler [7]

Answer:

No

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.

Next, we see that the dimensions (1.32 m by 0.85 m) are smaller than the length.

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

\text{Diagonal}=\sqrt[]{1.32^2+0.85^2}=1.57m

Since 1.57m is still less than 1.72m, the two points cannot be placed on the map.

7 0
1 year ago
What is the midpoint of AB?
Nikolay [14]

Answer:

g

Step-by-step explanation:

(-6+8)/2=1 or g

idk if that helps

5 0
4 years ago
Is dividing by 1/2 the same thing as multiplying by 2??
Delicious77 [7]
Hmmmm let's see hmmm let's try with any number.. say  25

\bf 25\cdot 2\implies \boxed{50}\impliedby \times 2
\\\\\\
25\div \cfrac{1}{2}\implies \cfrac{25}{\frac{1}{2}}\implies \cfrac{\quad \frac{25}{1}\quad }{\frac{1}{2}}\implies \cfrac{25}{1}\cdot \cfrac{2}{1}\implies \boxed{50}\impliedby \div \frac{1}{2}
7 0
3 years ago
Read 2 more answers
https://www.usatestprep.com/modules/questions/qq.php?testid=913&assignment_id=45614607&strand=7060&element=35103&amp
torisob [31]
Have a nice day be safe
5 0
3 years ago
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