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Elza [17]
3 years ago
8

What is 5x < 15 can someone sollve it plz

Mathematics
1 answer:
Dmitry [639]3 years ago
5 0

Answer:

x <  3

Step-by-step explanation:

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4 x 5 - 6 + 33/3 - 7<br>I ended up getting -4 and it wasn't right​
prohojiy [21]

Answer: 4x^5 - 2

Step-by-step explanation: ion if thats rite

4 0
4 years ago
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What is the value of y?114Answer:
Taya2010 [7]
Y = 57
because is the remaining angle is (180-114) then 2y = 114
2y = 114 : divide it by 2
y = 57
7 0
3 years ago
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The diameters of bolts produced in a machine shop are normally distributed with a mean of 5.7 millimeters and a standard deviati
slava [35]

Answer:

The diameter that separates the top 3% is of 5.85 millimeters, and the one which separates the bottom 3% is of 5.55 millimeters.

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 z-score 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 p-value, we get the probability that the value of the measure is greater than X.

Mean of 5.7 millimeters and a standard deviation of 0.08 millimeters.

This means that \mu = 5.7, \sigma = 0.08

Top 3%

The 100 - 3 = 97th percentile, which is X when Z has a p-value of 0.97, so X when Z = 1.88.

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

1.88 = \frac{X - 5.7}{0.08}

X - 5.7 = 1.88*0.08

X = 5.85

Bottom 3%

The 3rd percentile, which is X when Z has a p-value of 0.03, so X when Z = -1.88.

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

-1.88 = \frac{X - 5.7}{0.08}

X - 5.7 = -1.88*0.08

X = 5.55

The diameter that separates the top 3% is of 5.85 millimeters, and the one which separates the bottom 3% is of 5.55 millimeters.

7 0
3 years ago
Solve the following inequality.
Crazy boy [7]

Answer:

A -6 < x ≤ -3

Step-by-step explanation:

21 ≤ - 3(x - 4) < 30

Divide all parts by -3.  Remember that flips the inequalities

21/-3  ≥ - 3/-3 (x - 4) > 30/-3

-7  ≥  (x - 4) > -10

Add 4 to all sides

-7+4  ≥  x - 4+4 > -10+4

-3  ≥  x  > -6

Rearranging the order

-6 < x ≤ -3

4 0
4 years ago
Drag each expression to show whether it can be used to find the surface area, volume or neither​
Brut [27]

Answer:

Surface area:

2(12\times 6) +  2(6 \times 8) + 2(8 \times 12)

2((12\times 6) +  (6 \times 8) + (8 \times 12)

Volume :

(12 \times 6 \times 8)

Neither:

8(12 \times 6)

2(12 \times 6 \times 8)

12+6+8

Step-by-step explanation:

Surface area of the cuboid:

The Surface area of the cuboid = 2(lb) +2(bh)  +2(hl)

Where

l =length of the cuboid

b = Breadth of the cuboid

h = height of the cuboid

So ,

The surface area will be

SA = 2(12\times 6) +  2(6 \times 8) + 2(8 \times 12)

SA = 2((12\times 6) +  (6 \times 8) + (8 \times 12))

SA  =2(72+48+98)

SA = 2(216)

SA = 432

Volumes of the cuboid:

Volume  = length \times breadth \times height

Volume = (12 \times 6 \times 8)

volume = 576

4 0
4 years ago
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