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bonufazy [111]
2 years ago
7

Middle school math pls help

Mathematics
1 answer:
d1i1m1o1n [39]2 years ago
5 0

Answer:

2 3/4

Step-by-step explanation:

You need to find the greatest common factor of 4 and 2 then you multiply the 2 by 2 to get a 4 and multiply the 1, then you add those together to get 2 3/4.

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Find the following percentage of 4.2% of 50
aleksley [76]
4.2% of 50 is 2.1 So 2.1 is your answer
3 0
3 years ago
Jackson paints every face of the cube what is the total surface area in square centimeters of the cube Jackson paints?
GREYUIT [131]
Find the area of each face and add them all together, or since a cube has 6 faces, you can multiply the area of one face by 6.
7 0
3 years ago
Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. A vending m
Anuta_ua [19.1K]

Answer:

A) 1.96%

Step-by-step explanation:

You need to know the band between 5.48 g and 5.82 g, the mean is 5.67 g and the standard deviation is .0.070 g, with that information you can calculate the percentage to the left of the mean and the percentage to the right of the mean and add them.

To know its percentage you have to calculate the z score for both values.

z = \frac{x-\mu}{\sigma}

x is the value being evaluated

μ is the mean

σ is the standard deviation

For 5.48 g:

z = \frac{5.48-5.67}{0.070} =-2.714

and is equivalent to 0.0034

For 5.82 g:

z = \frac{5.82-5.67}{0.070} = 2.143

and is equivalent to 0.9838

Those numbers mean that the percentage below 5.48 is equivalent to the 0.34% of the values and the percentage below 5.82 is equivalent to 98.38% of the values. Then the percentage rejected is the percentage above 5.82, 100 - 98.38 = 1.62% plus the percentage below 5.48, 0.34%.

Percentage rejected = 1.62% + 0.34% = 1.96%

7 0
3 years ago
Ecuación<br> 2/3 x – x / 6 = 2
Mekhanik [1.2K]

Answer:

x=4

Step-by-step explanation:

multiply both sides, colect the terms, divide,  answer!

5 0
2 years ago
Please help me out, thank u so much!
Sav [38]

Answer:

C

Step-by-step explanation:

Inverse function's domain and range flip when comparing them to their original function

8 0
2 years ago
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