Math Answers

Let 𝑓(𝑥) = 2𝑥²−3𝑥+7 / 5x²-2x. Find 𝑓(3).

Let g(x) = 5 / x-4. find the domain of g(x)

Let a and b be integers. Prove that if a∣b, then an∣bn for all positive integers n.

Solve the following by using the binomial formula.

1.When rolling a die 100 times, what is the probability rolling a 4 exactly 25 times?

2.       A teacher developed a 5- item multiple choice question with four options in each item. What is the probability of that a certain student who randomly selects his answers will get exactly 4 correct answers?

Solve the following by using the binomial formula.

1.When rolling a die 100 times, what is the probability rolling a 4 exactly 25 times?

2.       A teacher developed a 5- item multiple choice question with four options in each item. What is the probability of that a certain student who randomly selects his answers will get exactly 4 correct answers?

Rhoda walked 4 Floors from the 10th floor and then took a lift to the 8th floor. How many floors did she go through while in the lift

Express as a fraction

1.5°23°

  lim x + 2x² − x³/ 3 − x²

 lim (x²-4)/x-2

s→2

90%, n=23 z-score: