член: gueesstt

126 Questions
29 Answers

1833

+610

please help

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

●

gueesstt 13 мая 2018 г.

1398

+610

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 13 мая 2018 г.

2348

+610

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 $s$?

heureka ●

gueesstt 9 мая 2018 г.

1429

+610

help

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

heureka ●

gueesstt 9 мая 2018 г.

1193

+610

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 6 мая 2018 г.

4013

+610

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 6 мая 2018 г.

994

+610

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 6 мая 2018 г.

2521

+610

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 6 мая 2018 г.

1477

+610

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 прочитайте больше ..

●

gueesstt 6 мая 2018 г.

2308

+610

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.

heureka ●

gueesstt 4 мая 2018 г.

2407

+610

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 $a+b+c$?

heureka ●

gueesstt 4 мая 2018 г.

2597

+610

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 4 мая 2018 г.

2362

+610

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 4 мая 2018 г.

1016

+610

help

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

●

gueesstt 4 мая 2018 г.

1274

+610

help again,

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

●

gueesstt 4 мая 2018 г.

1780

+610

help

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

●

gueesstt 4 мая 2018 г.

+610

yea it is 3.20

gueesstt9 мая 2018 г.

+610

It was actually 7, thank you though

gueesstt4 мая 2018 г.

+610

thank you!

gueesstt24 апр. 2018 г.

+610

Thank you!!

gueesstt22 апр. 2018 г.

+610

Thank you!!

gueesstt22 апр. 2018 г.

+610

Thank you!

gueesstt22 апр. 2018 г.

+610

Thank you!

gueesstt22 апр. 2018 г.

+610

Thank you so much!

gueesstt22 апр. 2018 г.

+610

sorry, thank you

gueesstt20 апр. 2018 г.

+610

sorry, I fixed it!

gueesstt20 апр. 2018 г.

+610

Sorry about that

gueesstt20 апр. 2018 г.

+610

Thank you!

gueesstt13 апр. 2018 г.

+610

Thank you!

gueesstt12 апр. 2018 г.

+610

I agree with CPhill

gueesstt10 апр. 2018 г.

+610

Thank you!

gueesstt10 апр. 2018 г.

+610

20/1 divided by 1/5=

20*5/ 1*1=

100

gueesstt10 апр. 2018 г.

+610

Thank you!

gueesstt10 апр. 2018 г.

+610

This is answered here:

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

gueesstt9 апр. 2018 г.

+610

sqrt6/4

gueesstt9 апр. 2018 г.

Имя пользователя	gueesstt
Гол	610
Membership
Stats
Вопросов	125
ответы	29