All Questions ⁺⁰235702 Questions

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30

1

+0

Transformation of Trigonometric Functions

xXValeXx Feb 15, 2024

-1

41

1

+0

Transformation of Trigonometric Functions

xXValeXx Feb 15, 2024

-1

27

1

+0

Transformation of Trigonometric Functions

xXValeXx Feb 15, 2024

-1

29

1

+0

Transformation of Trigonometric Functions

xXValeXx Feb 15, 2024

0

42

1

+1439

Function

Find the domain and range of the function f(x) = 2/(2 - 3x).

kittykat Feb 15, 2024

+1

42

1

+400

Counting question

How many ways can you write two different letters chosen from
A B C D E F G H I J K L M N O P
so that they are in alphabetical order, and the first letter is a vowel? For example, AF and EN count, but DE and KC do not.

EnormousBighead ●

omgitsrne Feb 15, 2024

0

28

1

+400

Probability

Three cards are randomly drawn from a standard deck of $52$ cards, without replacement. Find the probability that the first card is spades or an Ace, the second card is red, and the third card is a nine.

omgitsrne Feb 15, 2024

0

40

2

+400

Counting

Syd chooses two different primes, and multiplies them. If both primes are greater than $20$, and the resulting product is less than $2000$, then how many different products could Syd have ended up with?

EnormousBighead ●●

omgitsrne Feb 15, 2024

0

25

0

+66

Help, stuck on a normal approximation question.

Calculate the normal approximation of the probability of rolling a 7 or 8 on an 8 sided dice, 12 times in a row.
Mean = 3
Standard deviation = 1.5
Report answer as a percentage to 7dp. read more ..

Blowyourmind123 Feb 15, 2024

-1

40

0

+1911

Complex Numbers

Compute (1 + i)/(2 - i)(3 + i).

tomtom Feb 15, 2024

-1

34

0

+1911

Simplify

Simplify the expression
\frac{1}{\sqrt{36}} - \sqrt{27} - \frac{1}{\sqrt{27}} - \sqrt{18} + \frac{1}{\sqrt{18}} - \sqrt{9}

tomtom Feb 15, 2024

0

36

1

+101

Trig Problem

In the diagram, ABCD is a square. Find sin PAQ.

EnormousBighead ●

Vxritate Feb 15, 2024

0

14

1

+0

plz help due trmrw

A function f randomly assigns values to f(1),f(2),f(3), and f(4) from the set {1,2,3,4} with replacement. What is the probability that f(f(x))=f(f(f(x))) for each in the set {1,2,3,4}? Express your answer as a common fraction.

UniCorns555 Feb 15, 2024

0

25

2

+0

HELP PLZ

Two quarter-circles are drawn inside a unit square. A smaller square is inscribed in the two quarter-circles. Find the area of the smaller square.

UniCorns555 Feb 15, 2024

-1

30

1

+1911

Probability

Right triangle XYZ has legs of length XY = 12 and YZ = 6. Point D is chosen at random within the triangle XYZ. What is the probability that the area of triangle XYD is at most 10?

EnormousBighead ●

tomtom Feb 15, 2024

0

1

1

+1911

system question

For a certain value of k, the system
3a + 4b = 7
6a + 4b = k + 3a
has infinitely many solutions (a,b). What is k? read more ..

tomtom Feb 15, 2024

-1

44

1

+1911

Ratios

A bag contains yellow, green, blue, and white marbles in the ratio 4:2:3:7. If the bag contains 240 marbles, then how many blue marbles are there?

tomtom Feb 15, 2024

+1

2

1

+101

Trig Problem

In square ABCD, M is the midpoint of AB, and N is the midpoint of CD. If the side length of the square is 1, then find the area of the shaded region. read more ..

Vxritate Feb 15, 2024

0

35

0

+0

Pls help ASAP

If 1/5 <15 and P= 3/x+4/y. How many possible integer values for P are there?

Curry30shivank Feb 15, 2024

0

26

0

+1439

Grid question

Determine the number of ways of choosing three points from the grid below, so that they form an isosceles right triangle.

kittykat Feb 15, 2024

0

21

1

+1439

Solutions

How many solutions are there to the equation u+v+w+x+y+z=10
where u, v, w, x, y, and z are nonnegative integers, and x is even?

kittykat Feb 15, 2024

0

31

1

+1439

Help with counting

Sam wants to color the three sides of an equilateral triangle. He has two different colors to choose from. In how many different ways can Sam color the sides of the triangle? (Two colorings are considered the same if one coloring can be read more ..

kittykat Feb 15, 2024

0

3

0

+688

Binomial Theorem

For some real number a and some positive integer n, the first few terms in the expansion of (1 + ax)^n are 1 - 20x + 200x^2 + cx^3 + ...
Find c.

booboo44 Feb 15, 2024

0

27

1

+688

Fractions

Levans writes a positive fraction in which the numerator and denominator are integers, and the numerator is 1 greater than the denominator. He then writes several more fractions. To make each new fraction, he increases both the numerator and the denominator read more ..

booboo44 Feb 15, 2024

0

28

0

+688

Equation

Find all values of c such that 3*(2c + 1) = 28*(3*c) - 9. If you find more than one value of c, then list your values in increasing order, separated by commas.

booboo44 Feb 15, 2024

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