gueesstt

126 Questions
29 Answers

0

1854

1

+612

please help

How many integer solutions exist for $x$ if $\frac12\le\frac x8\le\frac79$?

gueesstt May 13, 2018

0

1434

1

+612

help pls

Find the total number of four-digit palindromes. (Recall that a palindrome is a nonnegative sequence of digits which reads the same forwards and backwards, such as 1331. Zero cannot be the first digit.)

gueesstt May 13, 2018

0

2357

1

+612

help asap

Marina solved the quadratic equation $9x^2-18x-720=0$ by completing the square. In the process, she came up with the equivalent equation $$(x+r)^2 = s,$$where $r$ and $s$ are constants. What is $s$?

gueesstt May 9, 2018

0

1467

1

+612

help

What is the sum of the positive integers that are solutions of $-3n +3 >-11?$

gueesstt May 9, 2018

0

1225

2

+612

help asap, thanks!

Sasha has $\$3.20$ in U.S. coins. She has the same number of quarters and nickels. What is the greatest number of quarters she could have?

gueesstt May 6, 2018

0

4023

1

+612

thank you!

If $x^2 + bx + b + 3 = 0$ has roots of the form $\frac{-b \pm \sqrt{5}}{2}$, where $b > 0 $, then $b = m+\sqrt{n}$ for positive integers $m,n$. Find $m + n$.

gueesstt May 6, 2018

0

1031

1

+612

help, thank you

The quadratic $x^2-20x+36$ can be written in the form $(x+b)^2+c$, where $b$ and $c$ are constants. What is $b+c$?

gueesstt May 6, 2018

+1

2525

1

+612

please help

There are 3 complex numbers $a+bi$, $c+di$, and $e+fi$. If $b=1$, $e=-a-c$, and the sum of the numbers is $-i$, find $d+f$.

gueesstt May 6, 2018

0

1496

1

+612

help

I pick two whole numbers $x$ and $y$ between $1$ and $10$ inclusive (not necessarily distinct). My friend picks two numbers $x -4$ and $2y-1$. If the product of my friend's numbers is one greater than the product of my numbers, then what is the product read more ..

gueesstt May 6, 2018

+1

2316

1

+612

please help

For what value of $m$ does the equation $(x+4)(x+1) = m + 2x$ have exactly one real solution? Express your answer as a common fraction.

gueesstt May 4, 2018

+2

2416

1

+612

help again

The quadratic $-x^2+2x-4$ can be written in the form $a(x+b)^2+c$, where $a$, $b$, and $c$ are constants. What is $a+b+c$?

gueesstt May 4, 2018

+1

2602

2

+612

help

The graph of the line $x+y=b$ is a perpendicular bisector of the line segment from $(1,3)$ to $(5,7)$. What is the value of b?

gueesstt May 4, 2018

0

2390

2

+612

please help

A line passes through the midpoint of $(1,2)$ and $(19,4)$. The line is perpendicular to a line through $(0,7)$ and $(4,-3)$. What is the $y$-coordinate of the line when $x=20$?

gueesstt May 4, 2018

0

1026

1

+612

help

If we express $3x^2 + x - 4$ in the form $a(x - h)^2 + k$, then what is $k$?

gueesstt May 4, 2018

+1

1303

1

+612

help again,

What value of $k$ will make $x^2 - 16x + k$ the square of a binomial?

gueesstt May 4, 2018

0

1792

1

+612

help

Find the discriminant of $3x^2 + \left(3 + \frac 13\right)x + \frac 13$.

gueesstt May 4, 2018

+612

+2

sorry, I fixed it!

gueessttApr 20, 2018

+612

+1

Sorry about that

gueessttApr 20, 2018

+612

+2

Thank you!

gueessttApr 13, 2018

+612

+1

Thank you!

gueessttApr 12, 2018

+612

+2

I agree with CPhill

gueessttApr 10, 2018

+612

+2

Thank you!

gueessttApr 10, 2018

+612

+1

20/1 divided by 1/5=

20*5/ 1*1=

100

gueessttApr 10, 2018

+612

+1

Thank you!

gueessttApr 10, 2018

+612

+2

This is answered here:

https://web2.0calc.com/questions/need-some-help_9

gueessttApr 9, 2018

+612

0

sqrt6/4

gueessttApr 9, 2018