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2 years ago

Given that the mean of a data set is 25, and the standard deviation is 5, what is the Z-score of 15?

Mathematics

1 answer:

Ber [7]2 years ago

5 0

The answer is negative 2

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51 - (2c+3)= 4 (c+5)+c

stellarik [79]

Answer:

Hello! The answer would be = 4

Step-by-step explanation:

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3 years ago

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You work for a company that produces custom picture frames. A new customer needs to frame a piece of rectangular artwork with di

miskamm [114]

Answer:

None of the choices are correct.

Step-by-step explanation:

Let x be the width of the frame,

The framed art cannot me more than 320 square inches

$(11 + 2x) \times (15+2x) \leq 320$

$(165 +30x +22x +4x^2 ) \leq 320$

$4x^2+52x + 165 \leq 320$

$4x^2 +52x + 165-320 \leq 0$

$4x^2 +52x - 155\leq 0$

By using the quadratic formula

$x = \frac{-b\pm \sqrt{(b^2-4ac)}}{2a}$

$x = \frac{-52\pm \sqrt{(52^2-4(4)(-155))}}{2(4)}$

$x = \frac{-52\pm \sqrt{(2704+2480)}}{2(4)}$

$x = \frac{-52\pm \sqrt{(5184)}}{2(4)}$

$x = \frac{-52\pm 72}{2(4)}$

$x = \frac{20}{8}$

$x= \frac{5}{2}$

$x = 2.5$

Frame must not be more than 2.5 inches wide.

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3 years ago

WILL GIVE BRAINLIEST!!!

Licemer1 [7]

Answer:

the answer is c

Step-by-step explanation:

I just did this quiz

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2 years ago

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No pinks plz just tell me the answer

uranmaximum [27]

Answer:

none of the equations are true, B!

Step-by-step explanation:

8 isn't equal to 7

9 isn't equal to 8

and 125 isn't equal to 15 :D

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Neko [114]

O to the power of 2 i think

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