All Questions ⁺⁰237827 Questions

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257

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help counting

In the array below, in how many different ways can we start with the letter A and move from letter to letter (horizontally, vertically, or diagonally), to spell the word "ARCH"?

A
RRR read more ..

Guest Nov 2, 2022

-1

234

1

HELP FAST PLEASE!!!

Find the value of k if kx^2-5x-12=0 has solutions x=3 and x= -4/3

Guest Nov 2, 2022

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222

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plz help

In how many ways can the numbers 1 through 5 be entered once each into the five boxes below so that all the given inequalities are true?

Guest Nov 2, 2022

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197

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algebra

Find a monic quartic polynomial f(x) with rational coefficients whose roots include x = 2 - sqrt(3) and x = 1 - sqrt(5).

Guest Nov 2, 2022

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226

0

Which shows the expression below simplified?

Which shows the expression below simplified?
0.000032 ÷ (8 × 10-3)
A. 4 × 10-2
B. 4 × 10-3 read more ..

Guest Nov 2, 2022

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268

1

help

why cant i find the square root of -9?

Guest Nov 2, 2022

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274

1

Quadratic

Find the equation whose graph is a parabola with vertex (2,4), vertical axis of symmetry, and contains the point (7,7). Express your answer in the form "ax^2+bx+c".

Guest Nov 2, 2022

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206

0

Inverse functions

The inverse of function f(x) = (2x-2)/(x-5) is written in the form of $f^{-1}(x)=\dfrac{ax+b}{cx+d}$, where a, b, c, and d are all real numbers. Find a/c.

Guest Nov 2, 2022

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210

0

help algebra

Let y = (x-3)/(x+7) + 1/3
Then this equation can be expressed in the form (x + a)(y + b) = c for some constants a, b, and c . Enter your answer in the form " a, b, c".

Guest Nov 2, 2022

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284

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help plz

Two rectangles overlap, as shown below. Find the area of the overlapping region (which is shaded) if AB = BE = 2 and AD = ED = 4.

read more ..

Guest Nov 2, 2022

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194

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need help

In November's Math Meet, the Little Monsters of Beast Academy solved 1/3 of the problems. In March's Math Meet, they solved 2/7 of the problems. (There might be different numbers of problems asked in November and March.)
In total, the Little Monsters read more ..

Guest Nov 2, 2022

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193

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roots

If a, b, and c are the roots of the equation 2x^3-6x^2-15x-3=0, then find a^2 + b^2 + c^2.

Guest Nov 2, 2022

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192

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systems

Solve each of the following systems of equations. Find all solutions.

(a) x + y = -1
3x = 4- 3y + 5x - 2 read more ..

Guest Nov 2, 2022

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215

0

help coordinates

The square with vertices (-a, -a), (a, -a), (-a, a), (a, a) is cut by the line y = x/3 into congruent quadrilaterals. The perimeter of one of these congruent quadrilaterals divided by a equals what? Express your answer in simplified radical form. read more ..

Guest Nov 2, 2022

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187

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quadratic

If the two roots of the quadratic 4x^2 + 7x + k are (-7 +/- i*sqrt(79))/8, what is k?

Guest Nov 2, 2022

Nov 1, 2022

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196

0

help plz

Find all real numbers a that satisfy
1/(a^3 + 7) = -a^3/(a^3 + 7)

Guest Nov 1, 2022

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291

1

+64

Percents

If 1% of the planets in the universe contain water, and astronomers develop a test that is 95%
accurate for determining whether or not a planet contains water, then what is the probability that a planet
identified by the test as containing water really read more ..

Chandalier Nov 1, 2022

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276

1

+64

Grid question

Three different points from the 16 points of this 4 × 4 grid are to be chosen as vertices of a
triangle. How many different triangles can be drawn?

read more ..

Chandalier Nov 1, 2022

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203

0

help number theory

How many 3-digit numbers are there that have exactly 16 divisors and that are divisible by 5?

Guest Nov 1, 2022

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229

2

Number Theory

There are three consecutive positive integers. The smallest one is a multiple of 3, the middle one is a multiple of 5 and the largest one is a multiple of 4. What is the smallest possible sum of those three integers?

Guest Nov 1, 2022

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258

2

help me!

What kind of changes are melting and freezing?/

Guest Nov 1, 2022

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204

0

question

left parenthesis 6 x Superscript 5 Baseline minus 3 x cubed plus 3 x squared minus 2 x plus 6 right parenthesis divided by left parenthesis x minus 1 right parenthesis

Guest Nov 1, 2022

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254

2

help algebra

Solve for x:
(3x + 12)(3x + 4) = (4x^2 + 8x + 18x^2)/(2x).

Guest Nov 1, 2022

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238

1

Function

Let F(x) be the real-valued function defined for all real x except for x = 1 and x = 2 and satisfying the functional equation
F(x) + F((2x - 3)/x) = x.
Find the function F(x) satisfying these conditions. Write F(x) as read more ..

Guest Nov 1, 2022

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