All Questions ⁺⁰230706 Questions

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229

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+12

Help, please!

Compute the domain of the real-valued function

smartphoenix13 Aug 11, 2022

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231

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Help

A grocer wishes to blend two different coffee brands in order to make a blend of 400 pounds to sell at $3.00 a pound. If he uses a brand of coffee worth $2.70 a pound with another brand worth $3.20 a pound, how many pounds of each does he use? read more ..

Guest Aug 11, 2022

Aug 10, 2022

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217

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helpp

Ethan decides to type up so,e documents while waiting for the meeting to start. He can type 2 pages every 1/8 hour. If the meeting started 3/4 hour later than the scheduled time, how many pages can he type before the meeting starts?
a. 8
b. read more ..

Guest Aug 10, 2022

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189

1

Please help!

Let $f(x)=x^x$. The derivative $f'(x)$ can be written as the product $f(x)g(x)$ for a certain function $g(x)$. Find $g(x)$.

Guest Aug 10, 2022

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270

1

Assistance needed please!

The tangent line to the graph of $y=g(x)$ at $x=4$ has equation $y=-3x+11$. What is the equation of the tangent line to the graph of $y=g(x)^3$ at $x=4$? The answer should be in the form $\verb#y=mx+b#$.

Guest Aug 10, 2022

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180

1

Help Please!

Let $f(x)=x2^x$. Find all values of $x$ such that $f(x)=2f'(x)$.

Guest Aug 10, 2022

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236

3

Parametric Equation. Help is appreciated

Consider a particle following the parametric equations

Find the first four positive times t when this particle visits the point (3/2, 3/2) and list them in increasing order.
read more ..

Guest Aug 10, 2022

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215

2

math question

what are two number that mulieped by -8 add to 2

Guest Aug 10, 2022

+1

213

5

+25

Plz help

Find $z$ for which $\dfrac{2\sqrt{z}-3}{\sqrt{z}-1} - 1 = \dfrac{3\sqrt{z}-1}{1-\sqrt{z}}$.

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Fytonic Aug 10, 2022

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289

2

help

A student has 4 fifths gallons of popcorn to give away. He wants to split it evenly between his 7 friends. How much popcorn does each friend receive?

Guest Aug 10, 2022

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412

4

Someone plz help me with geo

In triangle $ABC,$ let the angle bisectors be $\overline{BY}$ and $\overline{CZ}$. Given $AB = 8$, $AY = 6$, and $CY = 3$, find $BC$. [asy] pair A,B,C,X,Y,Z,I; A= (0,0); B = (1,0); C = (0.8,0.7); X = intersectionpoint(B--C , A -- (bisectorpoint(B,A,C)));read more ..

Guest Aug 10, 2022

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191

2

geometry help please

In triangle $ABC,$ $M$ is the midpoint of $\overline{AB}.$ Let $D$ be the point on $\overline{BC}$ such that $\overline{AD}$ bisects $\angle BAC,$ and let the perpendicular bisector of $\overline{AB}$ intersect $\overline{AD}$ at $E.$ If $AB = 44,$ $AC read more ..

Guest Aug 10, 2022

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231

1

+78

Help!!! One of the five quadratics below has a repeated root. (The other four have distinct roots.) What is the repeated root?

ILikeSushi Aug 10, 2022

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220

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help

In a class of 90 students, children play football, cricket and badminton.55 play cricket,53 play football,35 play badminton.25 play cricket and football,13 play cricket and badminton and 3 play all three sports.How many will get a certificate for only football? read more ..

Guest Aug 10, 2022

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205

4

please help

If k = 1/(1+2x), where x is an integer greater than 1 and k can be represented as a terminating decimal, find the sum of all possible values of k.

Guest Aug 10, 2022

Aug 9, 2022

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260

1

+27

A good friend of yours received $5000 from his Grandparents when he finished grade 10.

A good friend of yours received $5000 from his Grandparents when he finished grade 10. He wants to invest it for two years and then use it to travel when he finishes grade 12. If he invests his money at 3.75% compounded semi annually, how much read more ..

qtiop Aug 9, 2022

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264

1

+27

A customer has two payment options at a local furniture store when purchasing $6000 worth of new appliances.

A customer has two payment options at a local furniture store when purchasing $6000 worth of new appliances.
Option one is a down payment of 15%, but no payments or interest if the entire amount is paid off within 12 months. If the balance read more ..

qtiop Aug 9, 2022

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220

3

+14

Difficult Number Theory Problem Repost

PROBLEM:
Sherlock Holmes and Dr. Watson recover a suitcase with a three-digit combination lock from a mathematician turned criminal. Embedded in the suitcase above the lock is the cryptic message "AT SEA BASE. SEAS EBB SEA: BASS. "
Dr. Watson read more ..

EchoSage Aug 9, 2022

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194

1

+27

Calculate how much would have to be invested in order to have $48712.10 after two years if the investment paid a rate of 9 percent compounde

Calculate how much would have to be invested in order to have $48712.10 after two years if the investment paid a rate of 9 percent compounded annualy for two years.

qtiop Aug 9, 2022

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241

2

The value of 400,000 squared can be written as $1.6 \times 10^n$. What is the value of $n$?

The value of 400,000 squared can be written as $1.6 \times 10^n$. What is the value of $n$?

Guest Aug 9, 2022

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252

1

Seating arrangement 2

There are 8 identical chairs around a circular table. In how many ways can 5 people be seated in 5 of these chairs if Richard wants to sit next to Surya, but doesn't want to sit next to Tamas?
(Consider two seating arrangements to be the same if one read more ..

Guest Aug 9, 2022

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