Which represents two rays that intersect at a common endpoint

salantis [7]

The answer would be c, a line is different from a line segment because a line continues on in both directions

3 0

3 years ago

Henry takes out a $20,250 student loan to pay for college tuition this year. The interest rate he pays is 6% for 15 years. How m

tankabanditka [31]

Answer:

$1215 x 15 = $18225 This is over 15 years.

6 0

3 years ago

Appreciate any help greatly!!

Strike441 [17]

pretty sure its E

just substitute x and z for a and c

hope it helps

7 0

3 years ago

According to Money magazine, Maryland had the highest median annual household income of any state in at (Time website). Assume t

Ad libitum [116K]

Answer:

The probability that a household in Maryland has an annual income of X or more is 1 subtracted by the p-value of $Z = \frac{X - \mu}{\sigma}$ , in which $\mu$ is the mean income and $\sigma$ is the standard deviation of incomes.

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.

In this question:

Mean $\mu$ , standard deviation $\sigma$

What is the probability that a household in Maryland has an annual income of X or more?

The probability that a household in Maryland has an annual income of X or more is 1 subtracted by the p-value of $Z = \frac{X - \mu}{\sigma}$ , in which $\mu$ is the mean income and $\sigma$ is the standard deviation of incomes.

6 0

3 years ago

john takes 15 minutes to walk from school to the bus station. Jim takes 20 minutes to walk from school to the bus station. If th

Anastasy [175]

Let x km/h be the Jim's speed. If the difference in Jim's and John's speeds is 2 km/h, then the John's speed is x+2 km/h.

1. John takes 15 minutes to walk with speed x+2 km/h from school to the bus station, then the distance is 15·(x+2) km.

2. Jim takes 20 minutes to walk with speed x km/h from school to the bus station, then the distance is 20·x km.

3. The distance is the same, so

20x=15(x+2),

20x=15x+30,

20x-15x=30,

5x=30,

x=30:5,

x=6.

Answer: the distance between the station and the school is 6 km.

5 0

3 years ago