Anyone plssss helppppp plssss

Mathematics

1 answer:

Nataliya [291]3 years ago

4 0

Answer:

E because he is 9/16 standard deviations away from the mean, which is an improvement from 1/10 standard deviations

Hope this helped and brainliest please

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Perform the operation: 3 gal, 1 qt. -1 gal, 3 qt.

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Ah, college mathematics.

We must remember there are four quarts per gallon. Let's convert everything to gallons:

3 \frac 1 4 - 1 \frac 3 4 = \frac{13}{4} - \frac{7}{4} = \frac{6}{4} = 1 \frac 2 4

We don't reduce because it's easy to see that's 1 gallon, 2 quarts, third choice.

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Solve for z.<br><br> –2.9 + 4.2z = –14.73 − 12.74 + 0.3z<br><br> z =

Kobotan [32]

Answer:

$\boxed{z = -6.3}$

Step-by-step explanation:

$= > - 2.9 + 4.2z = - 14.73 - 12.74 + 0.3z \\ \\ = > - 2.9 + 4.2z = - 27.47 + 0.3z \\ \\ = > 4.2z - 2.9 = 0.3z - 27.47 \\ \\ = > 4.2z - 0.3z - 2.9 = - 27.47 \\ \\ = > 3.9z = - 27.47 + 2.9 \\ \\ = > 3.9z = - 24.57 \\ \\ = > z = - \frac{24.57}{3.9} \\ \\ = > z = - 6.3$

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3 years ago

HELP NEEDED ASAP

dedylja [7]

Answer:

The volume is 160

Step-by-step explanation:

Explanation: To find the volume of the rectangular prism you need to multiply 8x20. The reason is because there are 20 cubes in each row (i'm sorry if i'm not good at explaining math very well). The way I found the volume was to count the amount of cubes on the side and multiply it by how many rows there were on top. So that brings me to 160. The product of 8x20. (I hope this helps, math isn't my best subject)

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