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denis-greek [22]
3 years ago
6

Please help I will make the brainiest!!! Its number 2

Mathematics
2 answers:
Alexeev081 [22]3 years ago
4 0

Answer:

its hard sowwy

Step-by-step explanation:

thanks for the points

VARVARA [1.3K]3 years ago
3 0

Answer:

4, 12, 8, 10

Step-by-step explanation:

Ratio:

Hydrogen : Oxygen

2:1

1) 8/2 = 4 Oxygen atoms

2) 6*2 = 12 Hydrogen atoms

3) 16/2 = 8 Oxygen atoms

4) 20/2 = 10 Oxygen atoms

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What is 24 devided by 10
Artist 52 [7]

Answer:

2.4

Step-by-step explanation:

24/10=2.4

3 0
3 years ago
Assume that the heights of men are normally distributed with a mean of 69.0 inches and a standard deviation of 2.8 inches. If th
ioda

Answer:

The bottom cutoff heights to be eligible for this experiment is 66.1 inches.

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 69.0 inches and a standard deviation of 2.8 inches.

This means that \mu = 69, \sigma = 2.8

What is the bottom cutoff heights to be eligible for this experiment?

The bottom 15% are excluded, so the bottom cutoff is the 15th percentile, which is X when Z has a pvalue of 0.15. So X when Z = -1.037.

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

-1.037 = \frac{X - 69}{2.8}

X - 69 = -1.037*2.8

X = 66.1

The bottom cutoff heights to be eligible for this experiment is 66.1 inches.

8 0
3 years ago
If caviar costs $23.44 a pound, then how much is a quarter of a pound?
saul85 [17]

Question

if caviar costs $23.44 a pound, then how much is a quarter of a pound?

Answer:

Hi, There! Frozen is Here to help :)

$5.86 is A Quarter of a pound Is the Correct Answer

Hope this Helps!

*FrozenVines*

7 0
3 years ago
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The answer will be 19
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1. x2 + 6x + 8<br> What’s the answer?
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Factor into (x+4)(x+2). Set each equation equal to 0, x=-4,-2
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