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Slav-nsk [51]
2 years ago
14

The following sample of weights was taken from 8 cookies off the assembly line. Construct the 95% confidence interval for the po

pulation variance for all cookies that come off the assembly line. Round your answers to two decimal places.
9.6,10.2,10.3,9.2,9.5,10.1,9.2,9.4
Mathematics
1 answer:
Gemiola [76]2 years ago
8 0

Answer:

what are you asking

Step-by-step explanation:

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15 points, no messing around, please do it right
cupoosta [38]

Answer:

416 is your answer!!!

Step-by-step explanation:

mak me brainliest and add me as a fiend

8 0
2 years ago
Please help me with my math
Taya2010 [7]
3x + 22 is the equation that represents the perimeter of the triangle.  4x + 10 is the perimeter of the rectangle.  Setting the two equal:

3x + 22 = 4x + 10

and collecting like terms:

x=11

We find that the perimeter of both shapes is equal to 11 units.
8 0
3 years ago
Solve the equation on the interval [0, 2pi): 12cos^2 x-9=0<br><br><br> What to do?
siniylev [52]

Answer:

\large\boxed{x=\dfrac{\pi}{6}\ \vee\ x=\dfrac{5\pi}{6}\ \vee\ x=\dfrac{7\pi}{6}\ \vee\ x=\dfrac{11\pi}{6}}

Step-by-step explanation:

12\cos^2x-9=0\qquad\text{add 9 to both sides}\\\\12\cos^2x=9\qquad\text{divide both sides by 12}\\\\\cos^2x=\dfrac{9}{12}\\\\\cos^2x=\dfrac{9:3}{12:3}\\\\\cos^2x=\dfrac{3}{4}\to\cos x=\pm\sqrt{\dfrac{3}{4}}\\\\\cos x=\pm\dfrac{\sqrt3}{2}\\\\\text{Look at the picture}\\\\x=\dfrac{\pi}{6}\ \vee\ x=\dfrac{5\pi}{6}\ \vee\ x=\dfrac{7\pi}{6}\ \vee\ x=\dfrac{11\pi}{6}

6 0
3 years ago
1. My number has two digits.
lana [24]

\implies {\blue {\boxed {\boxed {\purple {\sf {Your\:answer\:is\:59.}}}}}}

\sf \bf {\boxed {\mathbb {Step-by-step\:explanation:}}}

1. My number has two digits.

  • 59 is a two-digit number. ✔

2. Double my number is less than 150.

  • Double of 59 is 118, which is less than 150. ✔

3. I am not divisible by 12.

  • Since 59 is an odd number, hence it is not divisible by 12. ✔

4. My digits are different from each other.

  • The digits 5 and 9 are different. ✔

5. The second digit in my number is divisible by an odd number.

  • 9 is divisible by an odd number, i.e. 3. ✔

6. My first digit is less than my second digit.

  • 5 is less than 9. ✔

7. My digits add up to 14.

  • 5 + 9 gives us 14. ✔

Therefore, the required number is \sf\pink{59}.

\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}

7 0
2 years ago
Read 2 more answers
Easy question for all the points?
kaheart [24]

Answer:

D

Step-by-step explanation:

Height: h

Length: 2h + 15

Area = length × width

4h² + 42h + 90

2(2h² + 21h + 45)

2[2h² + 15h + 6h + 45]

2[h(2h + 15) + 3(2h + 15)]

2(h + 3)(2h + 15)

Width = 2(h+3) = 2h + 6

Length: 2h + 15

Difference:

(2h + 15) - (2h + 6)

2h + 15 - 2h - 6

9

Width is 9 feet shorter than the length

8 0
2 years ago
Read 2 more answers
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