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jek_recluse [69]
3 years ago
10

Please help me with this question If you don't know Please don't answer

Mathematics
2 answers:
Afina-wow [57]3 years ago
6 0

Answer:

t squared over  9

Step-by-step explanation:

KatRina [158]3 years ago
5 0
T square over 9

Hope I helped a tiny bit
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Refer to the various selling prices of various homes in a community that follow the normal distribution with mu (population mean
blsea [12.9K]

Answer:

0.43715

Step-by-step explanation:

We solve using z score calculator

z = (x-μ)/σ, where

x is the raw score

μ is the population mean = $276,000

σ is the population standard deviation = 32,000

For x = $276,000

z = 276,000 - 276,000/32000

z = 0

Probability value from Z-Table:

P(x = 276000) = 0.5

For x = $325,000

z = 325,000 - 276,000/32000

z = 1.53125

Probability value from Z-Table:

P(x = 325000) = 0.93715

The probability that the next house in the community will sell for between $276,000 and $325,000 is

P(x = 325000) - P(x = 276000)

= 0.93715 - 0.5

= 0.43715

8 0
3 years ago
Simplifying an algebra -3(y+2)
Brrunno [24]

Answer: -9y


Step-by-step explanation:

Step1: -3 is multiplied by y = -3y

Step 2: -3 multiplied by 2 = -6

Step 3: -3y + -6

6 0
4 years ago
Susan's art class is 8 hours long. How long is her class in minutes?​
PilotLPTM [1.2K]

Answer: 480 minutes

Step-by-step explanation:

8 hours x 60 minutes in a hour = 480

4 0
3 years ago
Read 2 more answers
-4x+3x=2 how do I solve for x?​
Snezhnost [94]

Answer: Combine like terms!

Step-by-step explanation:

-4x + 3x = 2

-1x = 2

-1x/-1 = 2/-1

x = -2

7 0
3 years ago
For an angle 0 with the point (-20,-21) on its terminating side, what is the value of cosine ?
Karo-lina-s [1.5K]

check the picture below.


\bf (\stackrel{a}{-20},\stackrel{b}{-21})\impliedby \textit{let's find the \underline{hypotenuse}} \\\\\\ \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies c=\sqrt{a^2+b^2} \qquad \begin{cases} c=hypotenuse\\ a=\stackrel{adjacent}{-20}\\ b=\stackrel{opposite}{-21}\\ \end{cases} \\\\\\ c=\sqrt{(-20)^2+(-21)^2}\implies c=\sqrt{841}\implies c=29 \\\\[-0.35em] ~\dotfill\\\\ ~\hfill cos(\theta )=\cfrac{\stackrel{adjacent}{-20}}{\stackrel{hypotenuse}{29}}~\hfill

5 0
3 years ago
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