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igor_vitrenko [27]
3 years ago
8

2x^2 -8x + 1 = 0 solving using quadratic formula round to the nearest 10

Mathematics
1 answer:
Mazyrski [523]3 years ago
5 0

Answer:

x=0.129171

x=3.87083

Step-by-step explanation:

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Can someone help me with this?? If you can't see the picture don't bother to answer.
Georgia [21]
J is correct. the scale is balanced, so x = 1. there are 9 1’s on the right, and 6 1’s on the left. there are 3 more blocks, and they would have to each be 1.
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3 years ago
(hurry show ur work) what is 8 6/8 ÷ 2 2/5 = ?
gizmo_the_mogwai [7]

Answer:

175/48 or 3.64

Step-by-step explanation:

■ Refer to the attachment.

Hope it helps ⚜

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2 years ago
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Find the perimeter of a rectangle with a length of (attachment 1) and a width of(attachment 2) .
son4ous [18]
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3 years ago
he temperature at any random location in a kiln used in the manufacture of bricks is normally distributed with a mean of 925 and
Leviafan [203]

Answer:

The proportion of bricks that crack during the firing process is 0.0001 = 0.01%.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Mean of 925 and a standard deviation of 60 degrees.

This means that \mu = 925, \sigma = 60

The proportion of bricks that crack during the firing process is closest to

This is 1 subtracted by the pvalue of Z when X = 1150. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{1150 - 925}{60}

Z = 3.75

Z = 3.75 has a pvalue of 0.9999

1 - 0.9999 = 0.0001

The proportion of bricks that crack during the firing process is 0.0001 = 0.01%.

5 0
3 years ago
What is AE ?
natulia [17]
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3 years ago
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