All Questions ⁺⁰237681 Questions

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help need help

A geometric sequence has $400$ terms. The first term is $1000$ and the common ratio is $-\frac{8}{9}.$ How many terms of this sequence are greater than $1?$

ABJeIIy Apr 2, 2024

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60

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help me with algebra

When the same constant is added to the numbers $60,$ $120,$ and $140,$ a three-term geometric sequence arises. What is the common ratio of the resulting sequence?

ABJeIIy Apr 2, 2024

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help algebra

The system of equations
{xy}/{x + y} = 1,{xz}/{x + z} = 1, {yz}/{y + z} = 3
has exactly one solution. What is z in this solution?

ABJeIIy Apr 2, 2024

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62

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help me help help

Find the value of
\cfrac{1}{1 + \cfrac{1}{4 + \cfrac{1}{1 + \cfrac{1}{4}}}}.

ABJeIIy Apr 2, 2024

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42

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help algebra

Let x and y be complex numbers. If $x + y =2$ and $x^3 + y^3 = 5$, then what is $x^2 + y^2$?

ABJeIIy Apr 2, 2024

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21

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help me

Find the largest value of $x$ such that $3x^2 + 17x + 15 = 2x^2 + 21x + 12 - 5x^2 + 17x + 34.$

ABJeIIy Apr 2, 2024

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57

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help plz algebra

Find the number of ordered pairs $(a,b)$ of integers such that
\frac{a + 2}{a + 1} = \frac{b}{8}.

CPhill ●●●

ABJeIIy Apr 2, 2024

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28

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+1855

help help

Let a and b be the roots of 5x^2 - 11x + 4 = -3x^2 - 17x + 5. Find a^3 + b3.

ABJeIIy Apr 2, 2024

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54

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help algebra

Let u and v be the solutions to 3x^2 + 5x + 7 = -4x^2 + 3x - 14. Find 1/u^2 + 1/v^2.

ABJeIIy Apr 2, 2024

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35

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Chess dubs

How many ways can I put down two indistinguishable pieces on an ordinary 8x8 chessboard, if the pieces must either be in the same row or be in the same column?

Umeko1.0 Apr 2, 2024

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49

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Halp: Urgent!

For how many three-digit positive integers is the sum of the digits equal to 5?

Umeko1.0 Apr 2, 2024

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53

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plz help help

Let a1, a2, a3, ..., a9, a10 be an arithmetic series. If a1 + a3 = 12 and a2 + a4 + a6 = 8, then find a1.

ABJeIIy Apr 2, 2024

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need help now

Laverne starts counting out loud by ${}5$'s. She starts with $2$. As Laverne counts, Shirley sums the numbers Laverne says. When the sum finally exceeds $20,$ Shirley runs screaming from the room. What number does Laverne say that read more ..

ABJeIIy Apr 2, 2024

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55

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help help

Let a1, a2, a3, ... be an arithmetic series. Let Sn denote the sum of the first n terms. If S1 = 5 and S2 = 15, then find S15.

ABJeIIy Apr 2, 2024

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63

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help plz

Let
f(x) = \left\lfloor\frac{3x - 5}{3x + 4}\right\rfloor.
Evaluate f(1)+f(2) + f(3) + \dots + f(999)+f(1000). (This sum has $1000$ terms, one for the result when we input each integer from $1$ to $1000$ into $f$.)

ABJeIIy Apr 2, 2024

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68

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help me help

Find the minimum distance from any lattice point to the line $y = \frac{5}{3} x + \frac{12}{7}.$

ABJeIIy Apr 2, 2024

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57

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help me plz

What is the area of the region bounded by the graphs of $y = |x + 2| - |x - 2|$ and $y = |x + 1| - |x - 5|$?

ABJeIIy Apr 2, 2024

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60

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help plz

Find the domain of the function $f(x)=\frac{2x-7}{\sqrt{x^2}} - \sqrt{5x+6-11}$.

ABJeIIy Apr 2, 2024

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32

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need help

The quadratic equation $x^2-mx+24 = 10$ has roots $x_1$ and $x_2$. If $x_1$ and $x_2$ are integers, how many different values of $m$ are possible?

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ABJeIIy Apr 2, 2024

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40

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Quadratic

Find the sum of the squares of the roots of $2x^2+4x-1=x^2-8x+3$.

ABJeIIy Apr 2, 2024

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51

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+9

Can someone Help me with my precalc question?

https://imgur.com/a/4vuTIpm
14. A game show uses a large spinner of radius 15 feet that rotates at a constant rate to determine which prizes contestants win. The figure above provides a representation of the wheel in the xy-plane read more ..

ddddddddddd Apr 2, 2024

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Can someone help me with this precalc question? very stuck.

https://imgur.com/a/4vuTIpm
PLEASE I HAVE AN EXAM TM MORNING AND THIS IS THE ONE QUESTION IM STUCK ON IN THE REVIEW

ddddddddddd Apr 2, 2024

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help me please!

Find constants A and B such that for all x such that and .

ABJelly Apr 2, 2024

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52

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please help!!

Find all solutions of the equation

ABJelly Apr 2, 2024

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Let and be real numbers such that What is the largest possible value of

Let and be real numbers such that
What is the largest possible value of

ABJelly Apr 2, 2024

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