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Paha777 [63]
3 years ago
8

Plzzzz helpppp2222. steppss

Mathematics
2 answers:
Ostrovityanka [42]3 years ago
8 0

Answer:

I think its a two step

Step-by-step explanation:

welp try your best good luck

Sauron [17]3 years ago
5 0
Theyre parallel

hope this helps!:)
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Feliz [49]
The answer is 50, 175
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2 years ago
A classroom has 8 boys and 14 students in the whole class whats the ratio from boys to girls
Mariana [72]
8/14 boys, 6/14 girls which means 4/7 boys and 3/7 girls
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Read 2 more answers
What is the surface area to volume ratio of a 5 cm cube?
joja [24]
Answer: 6/5

Explanation:
Given: 5cm cube
This means each side is 5 cm because a cube has equal sides.

Area of a square is length times width so area of 1 side of a cube:
= 5 x 5
= 25

Surface area is the area of one side of a cube times the number of sides. Now, how many sides does a cube have? 6
= 25 x 6
= 150

Surface area of a 5cm cube = 150

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Ratio of surface area to volume:
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6 0
3 years ago
Find the sum of 5 smallest consecutive whole numbers. Not 15
gogolik [260]

Answer:

10

Step-by-step explanation:

0 is the first whole number

The 5 smallest consecutive whole numbers:

0 , 1 , 2 , 3, 4

Add

0 + 1 + 2 + 3 + 4

10

Hope this helps :)

6 0
3 years ago
The diameters of ball bearings are distributed normally. The mean diameter is 83 millimeters and the standard deviation is 3 mil
Alenkinab [10]

Answer:

0.2514 = 25.14% probability that the diameter of a selected bearing is greater than 85 millimeters.

Step-by-step explanation:

Problems of normally distributed samples are 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.

In this question, we have that:

\mu = 83, \sigma = 3

Find the probability that the diameter of a selected bearing is greater than 85 millimeters.

This is 1 subtracted by the pvalue of Z when X = 85. Then

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

Z = \frac{85 - 83}{3}

Z = 0.67

Z = 0.67 has a pvalue of 0.7486.

1 - 0.7486 = 0.2514

0.2514 = 25.14% probability that the diameter of a selected bearing is greater than 85 millimeters.

7 0
3 years ago
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