Answer:
- D. e + c ≤ 21, 225e + 275c ≤ 6000
Step-by-step explanation:
Maximum of 21 hours each semester between elective classes and core classes, the required inequality is:
Each elective class cost $225 per semester hour and each core class costs $275, the sum is 225e + 275c.
He cannot spend more than $6,000, the required inequality is:
Correct option is D
Pn(Z>zp)=1−p%
Given a variable X following a normal distribution with mean μ and standard deviation σ, the area below the curve that corresponds to all values that are less than a that is, X<a
is the probability P(X<a). This probability is usually calculated by converting the variable X to a standard normal variable Z (forming z scores) defined by:

The variable Z follows the standard normal distribution with a mean of 0 and a standard deviation of 1.
The standard normal probabilities are typically found by using the standard normal tables or other computational means such as calculators or software.
Pn(Z>zp)=1−p%
Here Pn is the probability for the standard normal variable.
Learn more about mean here brainly.com/question/18060320
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Answer: $128
Step-by-step explanation: So first Bob earned 8 dollars. Then he started earning 10 dollars a day every week for 2 weeks. that would have been 148 dollars (plus the 8 dollars he earned in the beginning), but he took a break once a week, subtracting 20 dollars from his pay, giving him 128 dollars in total.
Let me know if this was helpful! :D
Answer:
it would be 2
Step-by-step explanation: