All Questions

361

Help

Find the sum of the solutions of 2x^2+7x-4=0

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Guest Feb 9, 2021

441

can u help

Sunny goes mountain biking every Saturday. The trail is $96$ km long, and is uphill all the way to the top.
His uphill speed is $16$ km per hour slower than his normal speed.
His downhill speed read more ..

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Guest Feb 9, 2021

477

help needed

There are two numbers whose sum is 9 times their difference. And the difference of their squares is 81. Find the greater number.

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Guest Feb 9, 2021

521

+44

Help greatly needed

Find the least common multiple of and . This problem had been bugging me for a bit and I can't figure it out, if someone can help that would be great :)

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TC072 Feb 9, 2021

372

algebra

\[\dfrac{2x+1}{(x+1)(x-3)(x+4)} = \dfrac{A}{(x+1)}\ + \dfrac{B}{(x-3)}\ + \dfrac{C}{(x+4)}\]
The above rational fraction is expressed in the form of partial fractions. Evaluate $A + B + C$.

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Guest Feb 9, 2021

477

composite figure

What’s the area of this composite figure?

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Guest Feb 9, 2021

564

parabolic path

You throw a ball toward a trash can. The ball follows a parabolic path through (10, 10), (−14, 10), and (20, 7). What is the equation of the parabolic path?

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Guest Feb 9, 2021

632

If , where represents a base-8 digit (and represents a four-digit number whose second digit is ), then what is the

If , where represents a base-8 digit (and represents a four-digit number whose second digit is ), then what is the sum of all possible values of in base 10?

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Guest Feb 9, 2021

452

help please

The perimeter of a rectangle is 216 cm. The length is 8 times as long as the width. What is the width of rectangle?

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Guest Feb 9, 2021

463

need help with coordinates

Given line $x+2y=3$ intersects circle \[x^2+y^2+x-6y+a=0\] at $P$ and $Q$. If $O$ is the origin and $OP\perp OQ$, what is the value of $a$?

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Guest Feb 9, 2021

466

welp

The terms of a particular sequence are determined according to the following rule: If the value of a given term $t$ is an odd positive integer, then the value of the following term is $3t -9$; if the value of a given term $t$ is an even positive integer, read more ..

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Guest Feb 9, 2021

427

algebra

Rewrite the expression g^4 + 12g^2 + 9 - 10g^2 + 8 in the form c(g^2 + p)^2 + q. What is q?

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Guest Feb 9, 2021

491

Algebra for a GEM sixth grader

Hue is arranging chairs. She can form 3 rows of a given length with 2 chairs left over, or 8 rows of that same length if she gets 13 more chairs. Complete the equation and solve it to find how many chairs are in that row length. In your equation, use the read more ..

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Guest Feb 9, 2021

499

help me please

Two T-shirts and 4 pants cost $67.90. Five T-shirts and 9 pants cost $160.25. What is the cost of one pant?

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Guest Feb 9, 2021

313

probability

Randomly choose two numbers between 0 and 1. What is the probability that their average is no greater than 2/3 and no less than 1/3?

Guest Feb 9, 2021

530

help me

In this triangle, what is the value of x? Enter your answer, rounded to the nearest tenth, in the box. x = yd A right triangle with one leg labeled x and the other leg labeled 40 yards. The angle that is opposite the leg labeled x yards is labeled 62 degrees. read more ..

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Guest Feb 9, 2021

1056

Evaluate the series $\dfrac{1}{3^1}+\dfrac{4}{3^2}+\dfrac{7}{3^3}+\dfrac{10}{3^4}+\cdots$.

1: Evaluate the series

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Guest Feb 9, 2021

387

number theory

The sum of the digits of a two-digit nunber is 7. When you reverse the digits of the original number the new number is 27 more than the orginal number. What is the value of the original number?

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Guest Feb 9, 2021

421

+130

graphs

Below is a portion of the graph of a function, y=u(x):

What is the exact value of u(-2.72)+u(-0.81)+u(0.81)+u(2.72)? read more ..

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mintjellyxd Feb 9, 2021

355

i think this is a hard one idk

Below is a portion of the graph of a function, y=u(x):

What is the exact value of u(-2.72) +u(-0.81)+u(0.81)+u(2.72)? read more ..

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Guest Feb 9, 2021

409

+130

help graphs

Below is a portion of the graph of a function, y=h(x):

If the graph of y=h(x-3) is drawn on the same set of axes as the graph read more ..

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mintjellyxd Feb 9, 2021

Feb 8, 2021

310

pls help with this problem ( just a hint is fine )

When $x = \frac{1}{8}$, evaluate the expression \[-x^\frac{1}{3} + \frac{1}{3}x^{-\frac{2}{3}} - \frac{2}{9}x^{-\frac{5}{3}}.\]

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Guest Feb 8, 2021

397

Find the measure of M

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Guest Feb 8, 2021

391

my brain cant handle graphs lol

The graph of y=f(x) is shown in red below. Find f(2)

Assume grid lines are spaced 1 unit apart

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Guest Feb 8, 2021

All Questions ⁺⁰237641 Questions

Help

can u help

help needed

Help greatly needed

algebra

composite figure

parabolic path

If , where represents a base-8 digit (and represents a four-digit number whose second digit is ), then what is the

help please

need help with coordinates

welp

algebra

Algebra for a GEM sixth grader

help me please

probability

help me

Evaluate the series $\dfrac{1}{3^1}+\dfrac{4}{3^2}+\dfrac{7}{3^3}+\dfrac{10}{3^4}+\cdots$.

number theory

graphs

i think this is a hard one idk

help graphs

pls help with this problem ( just a hint is fine )

Find the measure of M

my brain cant handle graphs lol

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