All Questions ⁺⁰237665 Questions

+1

425

1

geometry

Compute angle x, in degrees.

Guest Jun 15, 2021

+1

418

1

geometry

Compute angle x, in degrees.

Guest Jun 15, 2021

0

420

1

help plz

Find y if the point (-6,y) is on the line that passes through (-1,7) and (8,-2).

Guest Jun 15, 2021

0

477

1

geometry

1) Let ABCDE be a regular pentagon. Prove that AC bisects angle BCE and AD bisects angle BDE.

2) In quadrilateral BCDE, CBD = 31 degrees, CED = 47 degrees, BCE = 85 degrees. Find angle BDE.

Guest Jun 15, 2021

0

453

1

Help math

What is the largest three-digit integer whose digits are distinct and form a geometric sequence with common ratio 2?

Guest Jun 15, 2021

0

512

2

+30

Help!!

The sequence (an) satisfies a1=3 and an=(an-1-1)/(an-1+1) for all n ≥ 2. Find a100

natilie45632 Jun 15, 2021

0

401

1

geometry

Find angle x, in degrees.

Guest Jun 15, 2021

0

418

1

geometry

Find angle x, in degrees.

Guest Jun 15, 2021

0

447

1

test

A park ranger is up in a 120 foot lookout tower. The ranger can see a small fire in a field that is 1500 feet away from the base of the tower. What is the ranger's angle of depression when looking down at the fire from the tower?

Guest Jun 15, 2021

0

420

1

Number Theory

Find all positive integers n such that n^2 is divisible by n - 12.

Guest Jun 15, 2021

0

449

2

+30

Help please!!

All the roots of the cubic polynomial f(x)-3x^3+bx^2+cx+d are negative real numbers. If f(0)=81, find the smallest possible value of f(1). Prove that your answer is the minimum

natilie45632 Jun 15, 2021

0

505

2

paper hmm yes

Suppose we have a bag with 10 slips of paper in it. Eight slips have a 2 on them and the other two have a 9 on them.
(a) What is the expected value of the number shown when we draw a single slip of paper?

(b) What is the expected read more ..

amygdaleon305 ●●

Guest Jun 15, 2021

0

409

1

geometry

Find angle x, in degrees.

Guest Jun 15, 2021

0

415

1

geometry

Compute angle x, in degrees

read more ..

Guest Jun 15, 2021

0

432

1

Sequences

Sequence A is a geometric sequence. Sequence B is an arithmetic sequence. Each sequence stops as soon as one of its terms is greater than 300. What is the least positive difference between a number selected from sequence A and a number read more ..

Guest Jun 15, 2021

0

319

0

need help

The points (1,7), (13,18) and (16,k), where k is an integer, are vertices of a non-degenerate triangle. What is the sum of the values of k for which the area of the triangle is a minimum?

Guest Jun 15, 2021

+1

562

5

+147

Pre Calc Queston! Please help

A marching band performs on the football field at half-time. As they perform, the members of the band stand in the shape of a sinusoidal function. While playing, they move, but still maintain the sinusoidal function, transforming it in different ways. read more ..

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mnkmnk Jun 15, 2021

0

425

1

Complex Function

For all complex numbers z,
let f(z) = z^2 if z is not real, f(z) = 2z if z is real.

Find f(f(f(f(1+i)))). read more ..

Guest Jun 15, 2021

0

456

2

How to sum

Evaluate the sum 1/2 + 3/2^2 + 5/2^3 + 7/2^4 + ...

Guest Jun 15, 2021

0

467

1

System

Find the ordered pair (s,t) that satisfies the system

s/5 + 5t = 3
3t + 6s = 9 read more ..

Guest Jun 15, 2021

+1

428

1

Help coordinates

Let P=(a,b) be the point of intersection of the line y=2x-10 and the line through (7,8) and (-9,0). Compute a+b.

Guest Jun 15, 2021

0

683

4

how to do this question?

The lateral surface area of a cylindrical tube with a height of 6 cm is 48π square centimeters. In cubic centimeters, what is the tube's volume? Express your answer in terms of π.

mworkhard222 ●●●●

Guest Jun 15, 2021

0

411

1

Help math

Find all pairs of positive integers (a,b) such that a^2 - b^2 = 100.

Guest Jun 15, 2021

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