All Questions

290

Geometry Math Question

You are 5 times as likely to roll a composite number as a prime number on 1 roll of the cube. If the cube is rolled multiple times and a prime number appears 185 times, how many composite numbers should you expect to appear?

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Guest May 5, 2022

280

Floor function

Let f(x) = x + floor(x) for x >= 0.

(a) Find all x >= 0 such that f(x) = 1.
(b) Find all x >= 0 such that f(x) = 3. read more ..

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Guest May 5, 2022

291

+180

Functions

Mary stands on a balcony. Joe is on the left of the balcony looking up at her at an angle of 52 with the ground. Trent is on the right of the balcony looking up at her at an angle of 47 with the ground. If the height, h, is 4 m, read more ..

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DumbDude05 May 5, 2022

174

congruences

If a, b, c are positive integers less than 13 such that
2ab + bc + ca = 0 (mod 13)
ab + 2bc + ca = 2abc (mod 13)
ab + bc + 2ca = 3abc (mod 13) read more ..

Guest May 5, 2022

255

Trigonometric Ratios

Angle θ lies in quadrant 2. Without using a calculator, determine if the following ratios are true or false. Explain your reasoning.
a) tanθ = -1.323
b) cscθ = -0.542

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Guest May 5, 2022

276

Question on Trigonometric Ratios (Need help)

Determine the value of x to the nearest tenth of a centimetre.

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Guest May 5, 2022

307

+180

Grade 11 Functions Question

A square has a side length of 20 cm. If a diagonal is drawn, what is the length of the diagonal? Give the exact value, not an approximation.

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DumbDude05 May 5, 2022

165

Counting

How many points of the form (x,y), where both coordinates are positive integers, lie below the graph of the hyperbola xy=30?

Guest May 5, 2022

166

geometric series

An infinite geometric series has a first term of 12 and a second term of 4. A second infinite geometric series has the same first term of 12, a second term of 4 + n, and a sum of two times that of the first series. Find the value of n.

Guest May 5, 2022

164

Polynomial

A cubic polynomial p(x) has leading coefficient 1, all real coefficients, and p(3 - 2i) = 5. If p(0) = −52, find p(x).

Guest May 5, 2022

154

Polynomial

Let p(x) be a polynomial of degree 6 such that p(2^n) = n for n = 0, 1, 2, 3, 4, 5, 6. Find p(0).

Guest May 5, 2022

176

law of sine

solve triangle ABC given a = 60 degrees, b = 45 degrees, a = 20 cm.

Guest May 5, 2022

328

+29

Help ASAP please! Due tomorrow!

Find all acute angles x such that (sin2x)*(sin3x) = (cos2x)*(cos3x). If the sum of these angles can be written in the form aπ/b in lowest terms, what is a + b?

I am stuck on the fact that I can get one solution, read more ..

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ineedhelponmath May 5, 2022

266

Ratio

What is the ratio of a:b, knowing that (a-b)/(a+b)=3/5

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Guest May 5, 2022

178

Probability

A point in space (x,y,z) is randomly selected so that -1\le x \le 1, -1\le y \le 1, -1\le z \le 1. What is the probability that x + y + z \le 1?

Guest May 5, 2022

264

Fractions

For how many integer values of M is M/30 strictly between 1/3 and ?

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Guest May 5, 2022

267

Geometry

In the diagram below, we have AD = 24 and ADB = 90 degrees. If sin A = 2/3 and sin C = 1/4, then what is DC?

read more ..

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Guest May 5, 2022

156

Complex Numbers

Let
f(z) = 2z if z is not real
f(z) = z if z is real
read more ..

Guest May 5, 2022

287

Geometric series

Find the sum of the first six terms of the geometric sequence 1/2, 1/6, 1/18, ... Express your answer as a common fraction.

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Guest May 5, 2022

408

A car completes a trip with an average speed of 50 mph. If the car covered 2/5 of the

A car completes a trip with an average speed of 50 mph. If the car covered 2/5 of the distance at 60 mph, what was the average speed for the remaining 3/5 of the distance?

Please help. read more ..

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Guest May 5, 2022

275

help

Jeri finds a pile of money with at least $200. If she puts $80 of the pile in her left pocket, gives away 2/3 of the rest of the pile, and then puts the rest in her right pocket, she'll have more money than if she instead gave away of read more ..

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Guest May 5, 2022

294

hELp

John counts up from 1 to 13, and then immediately counts down again to 1, and then back up to 13, and so on, alternately counting up and down: read more ..

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Guest May 5, 2022

288

geometric sequence

Consider the geometric sequence 3, 3/2, 3/4, 3/8, ... . Find the eighth term of the sequence. Express your answer as a common fraction.

WhyamIdoingthis ●

Guest May 5, 2022

300

geometric sequence

What is the tenth term in the geometric sequence 9, 3/2, 1/4, ...?

WhyamIdoingthis ●

Guest May 5, 2022

263

help number theory

Suppose that a and b are integers such that 3b = 8 - 2a. How many of the first six positive integers must be divisors of 2b + 30?

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Guest May 5, 2022

All Questions ⁺⁰236387 Questions

Geometry Math Question

Floor function

Functions

congruences

Trigonometric Ratios

Question on Trigonometric Ratios (Need help)

Grade 11 Functions Question

Counting

geometric series

Polynomial

Polynomial

law of sine

Help ASAP please! Due tomorrow!

Ratio

Probability

Fractions

Geometry

Complex Numbers

Geometric series

A car completes a trip with an average speed of 50 mph. If the car covered 2/5 of the

help

hELp

geometric sequence

geometric sequence

help number theory

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