All Questions ⁺⁰237785 Questions

0

296

1

Counting

How many triangles in the figure below?

Guest Jul 24, 2022

0

210

0

binomial theorem

The first few terms in the expansion of (1 + ax)^n are 1- 20x + 120x^2 + cx^3 + ...

Find c

Guest Jul 24, 2022

0

254

1

Help me asp.

The Roman Empire began in 27 B.C. and ended in 476 A.D. The Persian Empire lasted approximately 5/11 as long as the Roman Empire. Based on this approximation, if the Persian Empire began in 550 BC, in what year did it end? Round all years to the nearest read more ..

Guest Jul 24, 2022

0

312

1

algebra

Let a and b be the roots of the equation 2x^2+6x-14=0. What is the value of 3*a^5*b+a*b^5+2*a*b^5?

Guest Jul 24, 2022

0

245

1

system

Find all values for which there exists an ordered pair satisfying the following system of equations:
a+ab^2=40b+8a
a-ab^2=-32b+8a
List only the values for a

Guest Jul 24, 2022

0

218

0

geometry

Ari draws twelve circles of diameter 2 inches that all pass through the same point, so that the angles formed by the diameters of any two consecutive circles are congruent, as in the image shown. What is the distance between point A and point read more ..

Guest Jul 24, 2022

0

250

1

system

Find the ordered triple that satisfies the following system:
x-2y=0
y-2z=x+2z
x+z=5
read more ..

Guest Jul 24, 2022

0

248

1

quadratic

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 t will the projectile reach 86 feet in height for the first time? Express your answer as a decimal rounded to the nearest read more ..

Guest Jul 24, 2022

0

300

1

Quadratic

Let a and b be the roots of the equation 2x^2 - 7x + 2 = 0. Find a + b.

Guest Jul 24, 2022

0

199

0

quadratic

A creature on the moon throws a rock off a cliff. The height of the rock above the surface of the moon, in meters, t seconds after it is thrown is given by h(t) = −t ^2 + 8t + 10. When does the rock first reach a height of 12 m?

Guest Jul 24, 2022

0

259

3

Simplify. I am confused.

Simplify the expression:
(It is not )

Guest Jul 24, 2022

0

190

1

circles

When a circle has its radius increased by 1 cm, its area increases by 43 cm^2. To the nearest integer, how many centimeters was the radius of the circle before it was increased?

Guest Jul 24, 2022

0

297

3

Counting problem

How many three-digit numbers are multiples of neither 5 nor 8?

Guest Jul 24, 2022

0

194

0

Algebra

Suppose that p and q are positive real numbers such that p^3*q^5 = 108 and pq = 3*p^2. What is the value of q?

Guest Jul 24, 2022

0

284

1

help geometry

I is the incenter of ABC. We have CE = 12, AE = 9, and AB = 15. Find BC.

Guest Jul 24, 2022

0

191

0

trig

In triangle XYZ, we have angle X = 90 degrees and tan Z = 2. What is cos Z?

Guest Jul 24, 2022

0

282

1

+11

Need reply fast due to examination!!

ABCD is a square and there is a point P inside it AP=12, BP=26 and side of the square is 30 and centroid of triangle ABP, BCP, CDP, DAP are the vertices of the convex quadrilateral find the area of quadrilateral

Priyanshikhetan Jul 24, 2022

0

280

1

Help

Skylar and Tommy shared 108 jellybeans in the ratio 4:5. How many fewer jellybeans did Skylar get than Tommy?

Guest Jul 24, 2022

0

330

4

Help plz. Not sure.

Find all values of y that satisfy the equation:

Guest Jul 24, 2022

0

205

0

complex numbers

The four complex roots of
2z^4 + 8iz^3 + (-9 - 9i)z^2 + (-12 - 4i)z + (8 - 2i) = 0
when plotted in the complex plane, form a rhombus. Find the area of the rhombus.

Guest Jul 24, 2022

0

192

0

complex numbers

Let a, b, c be complex numbers, with a real, such that
a + b + c = ab + ac + bc
abc = 3/a + 3/b + 3/c
a = b + c read more ..

Guest Jul 24, 2022

0

323

2

Help please

Let $a$ and $b$ be the solutions of the equation $2x^2+6x-14=0$. What is the value of $(2a-3)(4b-6)$?

Guest Jul 24, 2022

0

294

1

Trigonometry

In triangle XYZ, we have

Guest Jul 24, 2022

-3

330

4

I need this my my summer school hw tmr and its like 10pm and its due 12pm help

A circular table is pushed into a corner of the room, where two walls meet at a right angle. A point P on the edge of the table (as shown below) has a distance of from one wall, and a distance of from the other wall. Find the radius read more ..

Guest Jul 24, 2022

1 Online Users