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coldgirl [10]
3 years ago
8

|r|=-2 solve the equation and graph the solution if possible

Mathematics
1 answer:
S_A_V [24]3 years ago
6 0
That bracket symbol, with an r in it, means "the absolute value of r". 
So r's absolute value is -2 meaning r is two units from zero
r= 2
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Write the sum using summation notation, assuming the suggested pattern continues.100 + 121 + 144 + 169 + ... + n2 + ...
leva [86]

Sigma_n=10 ^infinity n^2


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7 0
3 years ago
Pulse rates of women are normally distributed with a mean of 77.5 beats per minute and a standard deviation of 11.6 beats per mi
miss Akunina [59]

Answer:

Mean = 0, Standard deviation = 1

Step-by-step explanation:

We are given the following in the question:

Mean, μ = 77.5 beats per minute

Standard Deviation, σ = 11.6 beats per minute

We are given that the distribution of pulse rates of women is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

Putting the values, we get,

z_{score} = \displaystyle\frac{x-77.5}{11.6}

After, the standardization, that is conversion of all pulse rates of women to z scores, the mean of the distribution is 0 and standard deviation is 1.

Mean = 0, Standard deviation = 1

7 0
3 years ago
Okay now using distributive property write 2(4x-9) without parenthesis
riadik2000 [5.3K]
2(4x - 9) = 
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Hope this helps!!
~Kiwi


6 0
2 years ago
Help please need help <br>​
alexandr402 [8]

Answer:

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3 0
3 years ago
Which function is shown in the graph below
Alchen [17]

Answer:

y=log1^x

Step-by-step explanation:

plug in one of the points for example (1,0)

in all the choices the only choice that is correct is the second one

4 0
3 years ago
Read 2 more answers
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