1. Consider passwords of length 10 made with A, B, C, D, E, 9, 8, 6 (Repetition is allowed) a) How many strings have at least one letter and at least one digit? b) How many strings have at most one digit? Repetition is allowed. c) How many strings, have no A's and have exactly 4B's such that the B's are not adjacent and the string starts with a B but does not end with B?

Q: 1 . Find the point on the graph of 1+ x where the tangent line has the greatest slope.

A:

Q: A fuel storage tank is eqipped with a pump which can empty it in 15 hours.A large auxillary…

A: Let they together will take x hours  So the equipped pump will work x hours and the auxiliary pump…

Q: Can you help me with Practice Problem, Thank you.

A:

Q: Part A and Part B for Max`s car together cost $1,693 dollars, Part A cost $58 dollars more than…

A:

Q: Suppose Ahmed can mow a yard in 4 hours. If he keeps a steady pace, in 1 hour he would finish of the…

A: First, we need to identify the rate of work for each person. The rate of work is defined as the…

Q: Can you help me with Practice Problem, Thank you.

A: To find the values of a and b for which the line 2x + y = b is tangent to the parabola y = ax2 when…

Q: Can you help me with Practice Problem, Thank you.

A: Step 1:

Q: Megan has been planting young trees in her garden. One maple tree is 66 centimeters tall and is…

A: Solution

Q: What is the bottom equation for this, please ?

A: Apologies for the inconvenience.   We graph the given equations using graphing calculator.

Q: Emmy can type at a constant rate of 1 page every 4 minutes. If she has to type a 5-page article, but…

A: Emmy can write at a constant rate of 1 page in 4 minutes. Hence she will take 5 ×4 = 20 mins two…

Q: Disappointed about the cancelling of the Rocton World's Fair, Grace and Evelyn have decided to go on…

A:

Q: Can you please show how to solve for x and y in step 4.

A: We have to solve for x and y value given in step 4.

Q: Can you help with this practice problem

A:

Q: Suppose Marion can weed the garden twice as fast as Medel. Together they can weed the garden in 3…

A: Let the Marion can weed the garden in x  hours Let Medel can weed the garden in 2x hours  Together…

Q: An inlet faucet can fill a small pond in 60 minutes. The pond can be emptied by an outlet pipe in 80…

A: Consider the provided information, How long will it take the pond to fill? Let x- rate of inlet pipe…

Q: Can you help me with Practice Problem, Thank you.

A: Step 1: Step 2: Step 3: Step 4:

Q: Can you please do psychology major?

A: Topic: Relationship between hours of sleep and stress levels in college students

Q: ir fertilizer treatment kills weeds in half the time. When you read the small print at the bottom of…

A: We see that the sample size that is taken under consideration is 20. It is definitely a very small…

Q: Can you help me with Practice Problem, Thank you.

A:

Q: Find how long it takes Louis Camella to drive 420 miles on I-10 if he merges onto I-10 at 5pm and…

A: Given 1.Starting time =5 pm 2. Total distance, D= 420 miles 3. Speed, S=70mph

Q: Jason can do a job in 3 hours. David can do the same job in 5 hrs. How long would it take if they…

A: Let the time be x for both to complete the job together

Q: Stage

A:

Q: could you please work the solution out on paper please?

A: The given integral is cos4x.

Q: To get to work, Santa jogs 3 km to the train and then rides the remaining 5 km. If the train goes 40…

A: Topic:- time and Speed

Q: When Josh and Sean were each 5 years old, Josh was 1.5 inches taller than Sean. Josh grew at an…

A: Josh  is 1.5  inches taller than Sean at the age of 5 year of each, at the age of 13 height of Josh…

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.