WANT FREE 20 POINTS + BRAINLIEST? ANSWER THIS GEOMETRY QUESTION CORRECTLY AND I GOT YOU :)

Mathematics

2 answers:

uysha [10]3 years ago

8 0

Answer:

1.x

2.z

3.v

Step-by-step explanation:

just took the test sorry if i'm wrong

Tcecarenko [31]3 years ago

6 0

Answer:

1. The correct option is B.

2. The correct option is D.

3. The correct option is C.

Step-by-step explanation:

Let left plane is plane (1), right plane is plane (2) and horizontal plane is plane (3).

From the given figure it is clear that plane (1) and (3) intersect each other and plane (2) and (3) intersect each other.

Point B lies on the intersection of plane (1) and (3), and line x passes through the point B.

Point A lies on the intersection of plane (2) and (3), and line w passes through the point A.

So, line x and w represent the intersection of two planes. Only line x is available in the options.

Therefore the correct option is B.

Line z is the which intersect plane (1) at point C. So, z is the line that intersects one of the planes.

Therefore the correct option is D.

Line y passes through A and B. Points A and B are point which are lie on the intersection of planes.

The line y has points on three of the planes.

Therefore the correct option is C.

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8.52 The heights of 2-year-old children are normally distributed with a mean of 32 inches and a standard deviation of 1.5 inches

sweet [91]

Answer:

Heights of 29.5 and below could be a problem.

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.

The heights of 2-year-old children are normally distributed with a mean of 32 inches and a standard deviation of 1.5 inches.

This means that $\mu = 32, \sigma = 1.5$