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natta225 [31]
3 years ago
14

PLZ SOLVE DIS BOIS THAnK YOU

Mathematics
1 answer:
TEA [102]3 years ago
6 0
I got 81/25.... idk if that’s the correct answer .
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Question 12 (1 point)
nadya68 [22]

Answer: 7sqrt(3), 14

Step-by-step explanation:

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3 years ago
Y = 3x + 4 and y = x + 2
Dmitriy789 [7]

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Step-by-step explanation:

I used substitution **I'm not sure this is right but this is what I got!!!***

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3 years ago
A scale on a map shows that 2.5 centimeters represents 15 kilometers
Leto [7]

Answer:

105km

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4 years ago
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tamaranim1 [39]
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7 0
4 years ago
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A normal curve with a mean of 500 and a standard deviation of 100 is shown. Shade the region under the curve within one standard
N76 [4]

Answer:

And for this case we want to find how much of the data within the shaded region given in the figure attached.

And we can use the zscore formula given by:

z = \frac{X -\mu}{\sigma}

And if we find the z score for the limits we got:

z = \frac{400-500}{100}=-1

z = \frac{600-500}{100}= 1

And we want to find this probability using the normal standard distribution or excel:

P(-1

So we would expect about 68.2 % of the data within one deviation from the mean

Step-by-step explanation:

For this case we know that the variable of interest let's say x follows a normal distribution with the following parameters:

X \sim N(\mu = 500, \sigma =100)

And for this case we want to find how much of the data within the shaded region given in the figure attached.

And we can use the zscore formula given by:

z = \frac{X -\mu}{\sigma}

And if we find the z score for the limits we got:

z = \frac{400-500}{100}=-1

z = \frac{600-500}{100}= 1

And we want to find this probability using the normal standard distribution or excel:

P(-1

So we would expect about 68.2 % of the data within one deviation from the mean

6 0
4 years ago
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