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juin [17]
3 years ago
13

4. The ages of a group of tourists on a bus are 3, 6, 9, 11, 15, 26, 27, 30, 30, 31, 32. What is the standard deviation of this

tour group? * a. 10.711 O b. 11.234 O c. 114.726 O d. 126.202​
Mathematics
1 answer:
ioda3 years ago
8 0

Answer: b. 11.234

Step-by-step explanation:

used ti84

put in values in list 1

go into 1-var stats

find Sx which is the stand dev for sample

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nsweres el dodeel s  Step-by-step explanationen

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Solve for y. <br> 6 = 2 (y+2)<br><br> y = ___
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In a line of students ,Jenna is number 8.The teacher says the rule for a number pattern is add4.The first term 7.What number sho
balandron [24]
1. You have that the rule for a number pattern is add 4 and the <span>first term is 7.

 2. Let's call "n" to the number in the line where each student is. Then, you can express this as below:

 4n+7

 3. So, you have:

 Student N°1=4(1)+7=11
</span> Student N°2=4(2)+7=15
 Student N°3=4(3)+7=19
 Student N°4=4(4)+7=23
 Student N°5=4(5)+7=27
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4 0
3 years ago
PLZ HELP!!
ludmilkaskok [199]

9514 1404 393

Answer:

  y = -3x^2 -9x +30

Step-by-step explanation:

When a polynomial has a zero at x=p, it has a factor of (x -p). The factors of your quadratic are ...

  f(x) = (x +5)(x -2)

At the point x=3, the value of this product is ...

  f(3) = (3 +5)(3 -2) = (8)(1) = 8

In order for that value to be -24, it needs to be multiplied by a scale factor of -3. The quadratic you want is ...

  y = -3(x +5)(x -2)

  y = -3x^2 -9x +30 . . . . . standard form

3 0
3 years ago
Please help I need this ASAP.
Serjik [45]

Answer:

its a line

Step-by-step explanation:

7 0
3 years ago
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