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3 years ago

Please help asap 15 pts

Mathematics

2 answers:

Katarina [22]3 years ago

7 0

Examples of variables are x, y , ac

Answer is B) x , y , ac

Dafna11 [192]3 years ago

7 0

b variables replace a number and most often you use letters

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Brittany is writing a business report about protecting workplace data and will be conducting an interview with a data security e

max2010maxim [7]

Answer:

From this statement Brittany should have to complete all these steps that are given in other options.

Step-by-step explanation:

Brittany is writing a business report about workplace. So she realized that data should be secured and she conducting a interview with data data security expert.

In my point of view all there options are correct he should have to follow all steps which include the arrangements to arrive on time before interview

and she should learn about the individual she is interviewing.

she should have to sue open ended question

4 0

3 years ago

Question 2(Multiple Choice Worth 5 points)

serg [7]

Answer:

#1 d= 49t

Step-by-step explanation:

#2 Since the greatest value of n is 9, it means that the value of n is less than or equal to 9. But the values of n cannot be greater than 9. So, we will be using the sign of less than or equal to in the inequality. Thus, (D) is the correct option.

#3 is (29)

#4 is n=15

#5 is y = 7x

#6 is y=7x

8 0

3 years ago

Solve -a+7=2a-8 Show your work.

fenix001 [56]

-a+7=2a-8
-a+a+7=2a+a-8 add a on both sides
7+8=3a-8+8 add 8 on both sides
15/3=3a/3 divide 3 on both sides
a=5 solution

5 0

3 years ago

Read 2 more answers

There are 50 students in a calculus class. The amount of time needed for the instructor to grade a randomly chosen midterm exam

natta225 [31]

Answer:

14.46% probability that the instructor can finish grading in 4 and a half hours

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

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.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .