Which value is the best estimate for √ 94

Murrr4er [49]

To solve this equation, we have to use the distributive property to multiply 5y through the parentheses.

-45y - 15y^2 = 13

-15y^2 - 45y - 13 = 0

15y^2-45y-13=0
y=32+130√2805 or y=32−130√2805, when you use the quadratic formula.

8 0

4 years ago

Mr.Johnson has 124 English essays to grade. He determines that he can grade 8 per day. How many days will it take Mr.Johnson t g

matrenka [14]

Answer:

16 days or 15.5 I'm not sure what if the question wants exact answer or rounded to how many full days it will take

8 0

4 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

This question is from set can anyone answer me !

Virty [35]

Answer:

n (aub)= n (a)+ n(b)

n (anb) = n (a)-n (b)

only a= n(a)+n(b) -(aub)

n only b= n (a)+n (b)-n (anb)

now solve your self because this formula help to solve

3 0

3 years ago

Solve the equation

crimeas [40]

Answer: the answer is C.

try using the app

Step-by-step explanation:

3 0

4 years ago

Read 2 more answers