All Questions ⁺⁰236340 Questions

0

337

1

help

Let $n$ be a positive integer and let $k$ be the number of positive integers less than $2^n$ that are invertible modulo $2^n$. If $2^n\equiv 3\pmod{13}$, then what is the remainder when $k$ is divided by $13$?

Guest Feb 8, 2022

+1

344

1

+5

= missing digits

+ + = 9 - + x + + = 24 + x + x read more ..

MiaMia Feb 8, 2022

+1

293

1

system

Solve for m, a, t, and h.

mat = 1/8
mah = 32 read more ..

Guest Feb 8, 2022

0

316

2

Geometry

Rectangle ABCD contains a point X such that AX = 1, BX = 7, CX = . Find DX.

Guest Feb 8, 2022

+8

453

2

+289

HELPPP

In triangle $XYZ$, we have $\angle Z = 90^\circ$, $XY = 10$, and $YZ = \sqrt{51}$. What is $\tan X$?

Glowlife Feb 8, 2022

Feb 7, 2022

0

353

2

Pre-calc

In triangle ABC, we have AB = 5, BC = 8, and AC = 9, as shown below

read more ..

Guest Feb 7, 2022

0

332

1

trig problem

In triangle ABC, angle BCA = pi/6, AB = , and AC =

Find the sum of all distinct possible values of BC. If there are no possible values, enter 0.

Guest Feb 7, 2022

0

208

0

Netmath

Pour le nouveau parc de spectacles, l'administration de la municipalité a acquis un immense terrain rectangulaire de 5 hm par 15 hm. Pour le sécuriser, elle doit acheter de la clôture qui se vend au mètre.
De quelle longueur de clôture read more ..

Guest Feb 7, 2022

0

293

1

help with quadratic

The equation y = -6t^2 + 43t describes the height (in feet) of a projectile seconds after it is launched from the surface of Mars at 43 feet per second. In how many seconds will the projectile first reach feet in height? Express your answer as read more ..

Guest Feb 7, 2022

0

191

0

Coordinates

A vertical line divides the triangle with vertices (0,0), (1,1) and in the coordinate plane into two regions of equal area. The equation of the line is x = ?

Guest Feb 7, 2022

+1

177

0

help pleez

The equation y = -6t^2 + 51t describes the height (in feet) of a projectile launched from the surface of Mars at 51 feet per second. In how many seconds will the projectile first reach feet in height?

Guest Feb 7, 2022

0

377

1

+1632

Algebra 2 question help

I am not sure what to do when facing sumations as hard as this. Thanks

proyaop Feb 7, 2022

0

1150

2

What is 75 half of???

What is 75 half of???

Guest Feb 7, 2022

-1

335

1

need help

The equation y = -4.9t^2 + 23.8t describes the height (in meters) of a projectile launched from the ground at 23.8 meters per second. In how many seconds will the projectile first reach meters in height?

Guest Feb 7, 2022

-1

234

1

help me please

The equation $y = -16t^2 + 80t$ describes the height (in feet) of a projectile launched from the ground at 80 feet per second. At what will the projectile reach 36 feet in height for the first time? Express your answer as a decimal read more ..

Guest Feb 7, 2022

-1

293

0

Add one set of parentheses to the expression $2x^2+4-5$2x2+4−5 so that the value of the expression is $75$75 when $x=6$x=

Add one set of parentheses to the expression $2x^2+4-5$2x2+4−5 so that the value of the expression is $75$75 when $x=6$x=6 .

Guest Feb 7, 2022

-1

200

0

Number Theory

Let P (n) denote the number of factors of n. Find all values of n which satisfy P(n) = n.

Guest Feb 7, 2022

-1

366

1

+73

Determine whether each of the following rational functions is even, odd, or neither.

Determine whether each of the following rational functions is even, odd, or neither.

GAMEMASTERX40 Feb 7, 2022

0

297

1

Probability

One ball is drawn from a box containing 3 red, 2 blue and x green balls. Find the value of x so that the probability of drawing a green ball is double that of red or blue ball.

Guest Feb 7, 2022

+1

415

11

+1694

Hard Geometry

An equilateral triangle ABC is partly inscribed in a circle with diameter AB (See diagram).
The area of a triangle outside of a circle is equal to 1 square unit. Find the length of AB.
read more ..

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civonamzuk Feb 7, 2022

-1

308

1

Coordinates

Let line 1 be the graph of 5x+8y=-9. Line 2 is perpendicular to line 1 and passes through the point (10,-10). If line 2 is the graph of the equation y=mx+b, then find m+b.

Guest Feb 7, 2022

-1

300

1

Functions

If P(x) = 4+2*sqrt(x + 3) and G(x) = 4-8x, then what is the largest constant a such that P(G(a)) is defined?

Guest Feb 7, 2022

-1

317

2

Please help im almost graduating!

Subtract the polynomials: (3x^3 - 3x + 4) - (x^3 - 2). Enter your answer as a polynomial in descending order below, and use the caret (^) for exponents.For example, you would write as 4x^2.

Guest Feb 7, 2022

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