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frozen [14]
2 years ago
14

Please help me with this ASAP

Mathematics
1 answer:
maw [93]2 years ago
8 0
Go to a graphing website mathwa; it can graph for you and tell you all kinds of good stuff about the graph; but make an account for details on HOW to graph, it's free
Good luck~~
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The mean spent on lottery tickets is normally distributed with a mean of $6.50 and a standard deviation of $2.25. If one custome
Natasha_Volkova [10]
First, we have to find the z scores of $4 and $9.50.
Z₁ = ($4 - $6.50)/$2.25 = -1.11
Z₂ = ($9.50 - $6.50)/$2.25 = 1.33

Then, using a z score table, we find the probability of 1.33 and -1.11, and subtract them to determine the probability in between.
0.9082 - 0.1335 = 0.7747 or 77.47%.
7 0
3 years ago
Y = x + 5<br> y = -2x - 4<br>what are the y and x values please ​
Maksim231197 [3]

Answer:

x=-3, and y=2

Step-by-step explanation:

Since both equations are equal to y, set them equal to each other and solve for x, that way you can solve for y:

x+5=-2x-4

3x+5=-4

3x=-9

x=-3

Plugging in x=-3 into one of the original equations:

y = x + 5

y = -3 + 5

y = 2

Therefore, x=-3 and y=2. You can also write as the ordered pair (-3,2) since that's where the two equations would intercept on a graph.

3 0
3 years ago
Thank you very much for your help!
Kobotan [32]
For a.
x^2+y^2=25

For b.
(x-4)^2+(y-3)^2=25

For c.
(x-5)^2+(y-4)^2=9


Hope that helps
5 0
3 years ago
In a glide reflection, what comes first and what comes second?
NISA [10]

Answer:

A glide reflection is a composition of transformations.In a glide reflection, a translation is first performed on the figure, then it is reflected over a line. Therefore, the only required information is the translation rule and a line to reflect over. ... The first one is a translation rule.

3 0
3 years ago
An unfair die is twice as likely to roll an even number than an odd number. what is the probability of it rolling an odd number?
Anarel [89]
The probability is always expressed as a part of the whole. So, it can be in terms of fraction or percentage. The numerator is the number of possible events while the denominator is the number of total events. Let x be the number of times you roll an odd number. So, the number of times you roll an even number would be 2x. The total rolls would then be x + 2x. Thus, the probability of rolling an odd number is

Probability = x/(2x + x) = x/3x = 1/3


3 0
3 years ago
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