All Questions

449

Coordinates

There are four points that are 5 units from the line y=13 and 18 units from the point (7,15). What is the sum of the x and y and coordinates of all four of these points?

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Guest Jul 26, 2021

386

math of finance. compound interest present value

Harpreet—s parents deposited a lump sum of money into a savings account for him on his tenth birthday at an interest rate of 5% compounded semi-annually. Three years later, they opened a new account for him. They deposited $5000 to this new account read more ..

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Guest Jul 26, 2021

462

Number Theory

How many perfect squares less than 1000 are divisible by 8.

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Guest Jul 26, 2021

446

+24

Help asap with steps

Consider a particle following the parametric equations

What is the speed of this particle? (You may assume it's constant at all times.) read more ..

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Trainer Jul 26, 2021

406

+24

Help with steps please

Consider the graph of the parametric equations
What is the area of the shape bounded by this graph and the y-axis? If this doesn't form a closed read more ..

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Trainer Jul 26, 2021

451

+24

Help with steps

Consider a particle following the parametric equations

Find the first four positive times t when this particle visits the point (3/2,3/2) read more ..

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Trainer Jul 26, 2021

284

Graph

Graph: 𝑓(𝑥) − 8= 3𝑐𝑜𝑠𝑥 + 1

Guest Jul 26, 2021

400

geometry

Triangle ABC has circumcenter O. If AB = 10 and [OAB] = 50 find the circumradius of triangle ABC.

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Guest Jul 26, 2021

252

Find the number of lattice points on the hyperbola 4x^2-9y^2=2310

Guest Jul 26, 2021

365

I need help again on math

An infinite geometric series has common ratio -1/5 and sum 16. What is the first term of the series?

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Guest Jul 26, 2021

460

help plz

Find positive integers a,b and c such that
\[ \dfrac{3}{11} = \frac 1{a+ \frac1{b+ \frac1c}}. \]

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Guest Jul 26, 2021

486

Please help! Thanks!

In a certain colony of bacteria, the number of bacteria doubles every day. The colony starts with 3 bacteria, and has 6 at the end of day 1, 12 at the end of day 2, and so on. What is the number of the first day which ends with the colony having more than read more ..

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Guest Jul 26, 2021

340

repost since old answer was wrong

The functions f(x) and g(x) satisfy f(0) = 3, g(0) = -4, and

f'(x) = 7f(x) + 2g(x),
g'(x) = -4f(x) + g(x). read more ..

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Guest Jul 26, 2021

272

Absolute Value

Solve
|2x − 3|+|x +1|+|6−x|=7
in real numbers.

Guest Jul 26, 2021

431

help please!

my parents and i couldnt figure out part (b), but we figured out part (a), so i wont post that.

In this multi-part problem, we will consider this system of simultaneous equations:
read more ..

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Guest Jul 26, 2021

262

help function

Let g(x) the function for all real x such that :
- g(x)=g(x+1)+g(x-1)
- g(15)=20
- g(20)=15
Evaluate g(20152015).

Guest Jul 26, 2021

427

Parabola

Find the equation of the axis of symmetry of the graph of y = (x + 3)^2 - 5 + (x + 7)^2 - 15.

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Guest Jul 26, 2021

435

geometry

In a right triangle, the longer leg and the hypotenuse have consecutive integer lengths whose sum is 121 inches. In inches, what is the perimeter of the triangle?

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Guest Jul 26, 2021

352

help with geometry

In isosceles right triangle ABC, shown here, AC=BC. Point X is on side BC such that CX=6 and $XB=15$, and Y is on side AB such that $\overline{XY}\perp\overline{AB}$. What is the ratio of the area of triangle BXY to the area of triangle ABC?

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Guest Jul 26, 2021

523

+67

How do you find the distance between the edges of two mutually contained circles?

If there are two circles with known position and radius, and one (the smaller one) is inside the other, how do I find the distance between their edges?

How would read more ..

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Darry Jul 26, 2021

723

+22

Math question please help

The graph of f(x)=cos(x) is transformed to a new function, g(x), by stretching it horizontally by a factor of 4 and shifting it 1 unit up.

What is the equation of the new function g(x)?
read more ..

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ninjahelper5 Jul 26, 2021

417

Graphing

The graph of y=f(x) is shown in red below. Find f(2)
Assume grid lines are spaced 1 unit apart.

read more ..

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Guest Jul 26, 2021

586

Help with essay question. Just provide the answer. No need to write the whole essay.

You are a biologist assigned with tracking a colony of penguins in Antarctica over seven years. When you first arrive, you have a population of 1000 penguins. Throughout the first year, all of the penguins pair up to produce one chick per pair. However, read more ..

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Guest Jul 26, 2021

381

help lattice points questoin

Find the number of lattice points on the hyperbola 4x^2-9y^2=2310

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maicejiofj5 Jul 26, 2021

431

+80

help!

(a) Describe the graph of the parameterization .
(b) Describe the graph of the equation in spherical coordinates.
(c) Parameterize the equation .
(d) Parametrize the equation using two read more ..

jleung Jul 26, 2021

All Questions ⁺⁰237680 Questions

Coordinates

math of finance. compound interest present value

Number Theory

Help asap with steps

Help with steps please

Help with steps

Graph

geometry

Find the number of lattice points on the hyperbola 4x^2-9y^2=2310

I need help again on math

help plz

Please help! Thanks!

repost since old answer was wrong

Absolute Value

help please!

help function

Parabola

geometry

help with geometry

How do you find the distance between the edges of two mutually contained circles?

Math question please help

Graphing

Help with essay question. Just provide the answer. No need to write the whole essay.

help lattice points questoin

help!

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