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340

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4x+3=7x

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xxJenny1213xx Apr 25, 2022

283

algebra

A rock is thrown from a roof and follows a parabolic through the air. The path of the rock is modeled by h(t)=-t^2 +9t+2, where h gives the height of the rock after t seconds since its release. when does the rock first reach a hight higher than 22 meters? read more ..

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Guest Apr 25, 2022

365

+614

logs pls help

1. 4x+3=7x

2. log3(x2-22)=3 read more ..

Melody ●●

xxJenny1213xx Apr 25, 2022

Apr 24, 2022

341

Counting

Using the digits 1, 2, 3, 4, 5, how many even three-digit numbers less than 500 can be formed if each digit can be used at most once?

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Guest Apr 24, 2022

334

help counting

Suppose I have 6 shirts, 4 ties, 3 pairs of pants, and 2 pairs of shoes. If an outfit requires a shirt and pants and shoes, and can either have a tie or not have a tie, how many outfits can I make?

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Guest Apr 24, 2022

372

Trapezoid

Trapezoid ABCD has bases AB and CD. Line segment EF, which is parallel to the bases, divides trapezoid ABCD into two trapezoids of equal area. Find the length EF.

read more ..

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Guest Apr 24, 2022

398

Math help me

A garden store bought a fountain at a cost of $995.66 and marked it up 100%. Later on, the store marked it down 25%. What was the discount price?

BuilderBoi ●

Guest Apr 24, 2022

337

Distance formula

The distance between the points (x, 21) and (4, -7) is . Find the sum of all possible values of x.

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Guest Apr 24, 2022

227

Rate problem

Richard needs to fly from San Diego to Halifax, Nova Scotia and back in order to give an important talk about mathematics. On the way to Halifax, he will get a speed boost from the wind which blows at 50 miles per hour (mph). On the way back, the plane read more ..

Guest Apr 24, 2022

351

pls help

Points A,B and C are on a sphere whose radius is$13. If AB=BC=10$ what is the longest possible value of AC?
i keep getting 26pi-20 but it says its wrong

Melody ●●●●●●

mathnoobie Apr 24, 2022

329

Inequality question

For what real values of x is -4 < x^4 + 4x^2 < 21 + 6x^2 satisfied? Express your answer in interval notation.

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Guest Apr 24, 2022

321

Analytic Geometry

Find the radius of the circle with equation x^2 - 4x + y^2 - 6y - 36 = 8x - 20y.

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Guest Apr 24, 2022

317

Trianlge geometry

In triangle ABC, let M be the midpoint of AB and N be on AC such that N is an altitude of ABC. If AB = AC = 13 and BC = , and AN and CM intersect at X, then what is AX?

read more ..

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Guest Apr 24, 2022

334

graph

the graph below shows the number of visitors who visited science center in the period from July to December.

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Guest Apr 24, 2022

274

Pls help Thk u

The mass of sugar in container A was 1/4 the mass of sugar in container B. After 2.25 kg of the sugar in container A and 14 kg 400 g of sugar in container B was used, the mass of sugar in container A was 1/2 the mass of sugar in container B. What was the read more ..

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Guest Apr 24, 2022

344

Trapezoid

Trapezoid ABCD has bases AB and CD. Find x.

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Guest Apr 24, 2022

317

Function

Let g(2x + 5) = 4x^2 - 3x + 2. Find g(-8).

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Guest Apr 24, 2022

339

Let be the line parameterized by (2,0,1) + t(0,1,-1) Find the equation of the plane that contains line as well as the point (1,2,3)

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Guest Apr 24, 2022

310

What is the angle formed by the line (1,2,0) + t(-1,2,1) and a normal vector of the plane x+y-z = 4? Gice your answer in degrees

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Guest Apr 24, 2022

224

help plz

Rachel draws three cards from a standard deck of cards, one at a time. However, this time, she puts each card she drew back into the deck. How many different ways can she draw three cards, if they all have different suits? (The order of the cards matters.) read more ..

Guest Apr 24, 2022

337

Counting

Sam has nine flower pots, and want to display four of them on the front porch in a row, and the other five in a second row. (The order of the pots matters.) How many different displays are possible?

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Guest Apr 24, 2022

334

Counting

Joe wants to find all the four-letter words that begin and end with the same letter, and this letter does not appear in the middle. How many combinations of letters must he examine? A word is any sequence of letters, such as MTHM, and does not have to be read more ..

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Guest Apr 24, 2022

332

Range

Given that f(x) = 1/3^x, what is the range of f(x) on the interval [0,inf)?

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Guest Apr 24, 2022

283

Please help

Avery bought a washing machine originally priced at $864.72 but on sale for 30% off. After 4% sales tax, what was the total cost?

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Guest Apr 24, 2022

All Questions ⁺⁰237692 Questions

logs

algebra

logs pls help

Counting

help counting

Trapezoid

Math help me

Distance formula

Rate problem

pls help

Inequality question

Analytic Geometry

Trianlge geometry

graph

Pls help Thk u

Trapezoid

Function

Let be the line parameterized by (2,0,1) + t(0,1,-1) Find the equation of the plane that contains line as well as the point (1,2,3)

What is the angle formed by the line (1,2,0) + t(-1,2,1) and a normal vector of the plane x+y-z = 4? Gice your answer in degrees

help plz

Counting

Counting

Range

Please help

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