All Questions ⁺⁰237643 Questions

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397

1

maths

Guest Jan 25, 2021

0

1892

2

pls help

A new car is purchased for 22400 dollars. The value of the car depreciates at 6.75% per year. What will the value of the car be, to the nearest cent, after 9 years?

Guest Jan 25, 2021

0

536

1

+70

bruh

What is the escape speed (in km/s) from an Earth-like planet with mass 5.8e+24 kg and radius 66.0 × 105 m? Use the gravitational constant G = 6.67 × 10-11 m3 kg-1 s-2.

Skatergoat Jan 25, 2021

0

1017

1

i do not like this question

Let $n$ be a positive integer greater than or equal to 3. Let $a,b$ be integers such that $ab$ is invertible modulo $n$ and $(ab)^{-1}\equiv 2\pmod n$. Given $a+b$ is invertible, what is the remainder when $(a+b)^{-1}(a^{-1}+b^{-1})$ is read more ..

Guest Jan 25, 2021

0

467

1

need help with algebra

\[kx^2-17x+2k=0\]
Find the maximum integral value of k for which the above quadratic equation has two distinct real roots.

Guest Jan 25, 2021

0

558

2

geometry

Pentagon ABCDE is inscribed in a circle with center at O and diameter AB. Find the measure of angle AED + angle DCB in degrees.

read more ..

Guest Jan 25, 2021

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462

1

Geomtry

In the diagram, , arc is , and arc is . Find arc , in degrees.

Guest Jan 25, 2021

-1

470

1

Help Please

If $a
(Your answer can include $a$ and $b,$ and should be as simplified as possible.)

Guest Jan 25, 2021

0

337

2

please help

Write 2020^2021 -2020^1011+2020 as a sum of two perfect squares.

read more ..

Guest Jan 25, 2021

0

365

0

leap years

A proposal will make years that end in double zeroes a leap year only if the year leaves a remainder of 200 or 600 when divided by 900. Under this proposal, how many leap years will there be that end in double zeroes between 1996 and 2096?

Guest Jan 25, 2021

0

495

1

Quadratic Functions

Find a formula for the quadratic function whose graph has vertex (−2,−1) and y-intercept 5.

Guest Jan 25, 2021

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493

3

Help Me!

What is the sum of the squares of all real values of $x$ for which $|2-|x| |=1$?

Guest Jan 25, 2021

0

500

2

roots

$\sqrt{2}$ is the sixth root of what positive whole number?

Guest Jan 25, 2021

0

499

1

Area of Hexagon : Area of Triangle

What is the ratio of a hexagon with side length 3 to a triangle with side length 3sqrt(3)?

Guest Jan 25, 2021

0

392

1

what can you say to math?

what can you say to math?

Guest Jan 25, 2021

0

319

0

function problem

Suppose that a and b are positive real numbers, and let
f(x) = a/b*x if x <= -4
f(x) = abx^2 if x > 4
If f(-4) = -60/7 and f(4) = 3120, what is a + b? read more ..

Guest Jan 25, 2021

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726

2

Please Help

The quadratic $2x^2-3x+27$ has two imaginary roots. What is the sum of the squares of these roots? Express your answer as a decimal rounded to the nearest hundredth.

Guest Jan 25, 2021

0

395

1

math question

When we say that Ray is climbing up the stairs M at a time, we mean that he starts on the floor (step 0) then jumps to step m and then to 2m and so on until the number of steps to the top is less than m. Ray climbs up a flight of stairs of n steps read more ..

Guest Jan 25, 2021

0

465

1

help number

Let n be a positive integer. If a = 81n + 25, what is the remainder when a is divided by 9?

Guest Jan 25, 2021

0

328

0

modular calculation

If 4x = 16 (mod 20), then what is the remainder when x^2 is divided by 20.

Guest Jan 25, 2021

0

345

0

number theory

What is the smallest positive integer n such that 3n = 1356 (mod 27).

Guest Jan 25, 2021

0

572

2

+126

trigonometry question

How many values of x where 0<=x<=990 in degrees satisfy sin(x)=-0.31?

geoNewbie21 Jan 25, 2021

0

837

3

Help is appreciated

A certain organization consists of five leaders and some number of regular members. Every year, the current leaders are kicked out of the organization. Next, each regular member must find two new people to join as regular members. Finally, five new people read more ..

Guest Jan 25, 2021

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