All Questions

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469

1

perimeter

What is the perimeter of triangle ABC?

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Guest Jan 14, 2021

0

419

1

Math

The volume of liquid was 500 mL. When measured, a scientist found the volume to be 495 mL. What was the scientist’s percent error?

catmg ●

Guest Jan 14, 2021

0

488

1

+4

Math Help Please Help!

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Legion Jan 14, 2021

0

611

1

Tessa had $35. She bought a book for $7 and a magazine for $5. Which expression correctly shows the total money Tessa has left?

Tessa had $35. She bought a book for $7 and a magazine for $5. Which expression correctly shows the total money Tessa has left? read more ..

catmg ●

Guest Jan 14, 2021

0

438

1

solve

Solve
\[ (x+4)^3 + (x+5)^3 = (x+7)^3 + (x-4)^3 . \]

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Guest Jan 14, 2021

0

491

3

Repost! :)

Let $a$ and $b$ be real numbers such that the quadratic equations $x^2 + ax + b = 0$ and $ax^2 + bx + 1 = 0$ have a root in common. Enter all possible values of $a + b,$ separated by commas.

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Guest Jan 14, 2021

0

440

2

area of curve

In the diagram, regular hexagon $ABCDEF$ has sides of length $2$.
Using $A$, $C$ ,$ E$ as centers, portions of circles with radius $1$ are drawn outside the hexagon.
Using $B$, $D$ and $F$ as centers, read more ..

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Guest Jan 14, 2021

0

712

5

+283

Complex Numbers

Hi, could someone help me with this question?

The complex numbers z and w satisfy |z| = |w| = 1 and zw =/= -1.
(a) Prove that and .
(b) Prove that is a real number.
read more ..

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Caffeine Jan 14, 2021

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342

1

graph

Suppose the graph of y = f(x) includes the points (1,-5), (-2,3) and (3,1).
Based only on this information, there are two points that must be on the graph of y = f(x(x)) . If we call those points (a,b) and (c,d) what is ab + read more ..

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Guest Jan 14, 2021

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296

0

percent question

In these puzzles, the goal is to fill every empty square (including shaded squares) so that:
1. Each square contains a positive digit (1-9). Digits may be reused.
2. The percent next to a row gives the percent of the row sum contained in read more ..

Guest Jan 14, 2021

0

548

9

+126

Find the chord length

In the circle below, AB || CD and . AD is a diameter of the circle, and AD = 36. What is the number of inches in the length of AB? Express your answer in terms of pi. Could I solve this with using Trignometry?

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geoNewbie21 Jan 13, 2021

0

312

1

algebraic system

\[\begin{equation}x+y=z \\ x-y=z\\ xy=z \end{equation}\] Find $x, y, z $. Enter your answer as $3x+2y+z$.

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Guest Jan 13, 2021

0

358

1

Help appreciated

Let $a$ and $b$ be real numbers such that the quadratic equations $x^2 + ax + b = 0$ and $ax^2 + bx + 1 = 0$ have a root in common. Enter all possible values of $a + b,$ separated by commas.

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Guest Jan 13, 2021

0

448

1

help with percent

In these puzzles, the goal is to fill every empty square (including shaded squares) so that:
1. Each square contains a positive digit (1-9). Digits may be reused.
2. The percent next to a row gives the percent of the row sum contained in read more ..

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Guest Jan 13, 2021

0

470

2

ratio question

If $\left(x+\dfrac{1}{x}\right):\left(x-\dfrac{1}{x}\right)=5:4$, then find the value of x.

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Guest Jan 13, 2021

0

293

0

help with percent

In these puzzles, the goal is to fill every empty square (including shaded squares) so that:
1. Each square contains a positive digit (1-9). Digits may be reused.
2. The percent next to a row gives the percent of the row sum contained in read more ..

Guest Jan 13, 2021

0

411

1

word problem

Hannah is 7 years older than Tim was 2 years ago. If Tim is half of Hannah's age at present, then how old is Hannah now?

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Guest Jan 13, 2021

0

531

5

Answer this question with this format

Answer this question with this format

The last two problems this week are puzzles! In these puzzles, the goal is to fill every empty square (including shaded squares) so that:
1. Each square contains a positive digit (1-9). read more ..

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Guest Jan 13, 2021

0

388

0

trapezoid

Let WXYZ be a trapezoid with bases XY and WZ. In this trapezoid, angle ZXW = 106 degrees, angle XWZ = 48 degrees, and angle XYZ = 147 degrees. Find angle YXZ in degrees.

Guest Jan 13, 2021

0

521

2

How Many Times Does 1/2 Go Into 2 1/4

How Many Times Does 1/2 Go Into 2 1/4?

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Guest Jan 13, 2021

0

1701

1

HELP ASAP

The question I posted wasn't showing up, so I will just write it again. It's a part of my hw, and I'm really confused. A member of the junior varsity swim team will be elected as President. Each member is equally likely to be elected. The probability read more ..

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Guest Jan 13, 2021

0

452

1

+236

Please help me on this question and if possible please explain it so I can learn!! :) TY

It takes cups of flour, cups of sugar, and cup of butter to bake fifteen shortbread cookies. If Ramon has 5 cups of flour, 4 cups of sugar, and cups of butter, how many shortbread cookies can he bake?

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Choff Jan 13, 2021

0

317

2

number theory

What is the largest positive integer n for which n^3+100 is divisible by n+1?

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Guest Jan 13, 2021

0

372

1

help

what is something x somthing that makes 58

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Guest Jan 13, 2021

0

418

1

I thinking of a number

When I add 5 and multiply the answer by 4, I get 48.

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Guest Jan 13, 2021

All Questions ⁺⁰234800 Questions

perimeter

Math

Math Help Please Help!

Tessa had $35. She bought a book for $7 and a magazine for $5. Which expression correctly shows the total money Tessa has left?

solve

Repost! :)

area of curve

Complex Numbers

graph

percent question

Find the chord length

algebraic system

Help appreciated

help with percent

ratio question

help with percent

word problem

Answer this question with this format

trapezoid

How Many Times Does 1/2 Go Into 2 1/4

HELP ASAP

Please help me on this question and if possible please explain it so I can learn!! :) TY

number theory

help

I thinking of a number

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