All Questions

322

Please Help :)

A scientist recorded the movement of a pendulum for 15s. The scientist began recording when the pendulum was at its resting position. The pendulum then moved right (positive displacement) and left (negative displacement) several times. The pendulum’s furthest read more ..

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Guest Feb 17, 2022

271

Algebra

sqrt(79 + 24*sqrt(7)) can be written in the form a + b*sqrt(c), where a, b and c are integers and c has no factors which is a perfect square of any positive integer other than 1. Find abc.

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Guest Feb 17, 2022

279

Quadratic

Determine the sum of all real numbers x satisfying (x^2 - 4x + 2) + (x^2 - 5x + 2) = 1.

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Guest Feb 17, 2022

325

+1124

Triangles again

Hi friends,

This one is for Melody and/or Alan and/or CPhill, since they helped me with this before and should recall the original question.
read more ..

Melody ●

juriemagic Feb 17, 2022

286

geometry

Let ABC be a triangle. The angle bisectors AD, BE, and CF meet at I, so that DI = 3, BD = , and BI = 4. Compute the area of triangle ABC.

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Guest Feb 17, 2022

265

geometry

The lengths of the sides of isosceles triangle ABC are 3x + 62, 7x + 30, and 5x + 60 feet. What is the least possible number of feet in the perimeter of ABC?

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Guest Feb 17, 2022

287

h(t) = -2t - 1 Find h(h(t))

h(t) = -2t - 1
Find h(h(t))

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Guest Feb 17, 2022

277

g(n) = 2n + 2 f(n) = n2 - 2 Find g( f(n))

g(n) = 2n + 2
f(n) = n2 - 2
Find g( f(n))

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Guest Feb 17, 2022

305

+113

Help

Jose's dimes and nickels total $6.10. If the dimes were replaced by pennies then he would have $3.49. How many of each coin does he have?

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tacoBRO1023 Feb 17, 2022

335

Please help me!!

Adam and Friday's each had some money. If Adam spent $9, the ratio of the
remaining amount of money Adam had to the amount of money that Firdaus
had was 2:7. If Firdaus spent $9, the ratio of the amount of money Adam had read more ..

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Guest Feb 17, 2022

284

Function

If f(4) = 1 and f(2x) = 3f(x) for all x, then find f(64).

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Guest Feb 17, 2022

306

+113

Help asap

The diameter of a quarter is about 6 cm.
Find the area of the quarter. Use 3.14 for π
28.26
18.84
113.04 <#> 37.68

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tacoBRO1023 Feb 17, 2022

293

math

Find the equation of the tangent lines to x2 + y2-16x -12y +87 =0 at points where y = 4. Give the equations of the lines in the form y = mx + b . Sketch the circle and the tangent lines

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Guest Feb 17, 2022

267

Coordinates

The set of all solutions of the system

x + y <= 4
2x + y >= 5 read more ..

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Guest Feb 17, 2022

269

Algebra

If f(x) = x^3 + 1, find f^{-1}(2010).

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Guest Feb 17, 2022

279

Proportion

Suppose that a^2 varies inversely with b^3. If a = 7 when b = 4, find the value of a^2 when b = 6.

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Guest Feb 17, 2022

433

+364

If $-5\leq a \leq -1$ and $1 \leq b \leq 3$, what is the least possible value of $\displaystyle\left(\frac{1}{a}+\frac{1}{b}\right)\left(\fr

If and , what is the least possible value of ? Express your answer as a common fraction.

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XxmathguyxX Feb 17, 2022

166

3d geometry

A sphere is inscribed inside a hemisphere of radius 2. A cube is inscribed in the sphere. What is the volume of this cube?

Guest Feb 17, 2022

296

Coordinates

Points A(0,0), B(6,0), C(6,10) and D(0,10) are vertices of rectangle ABCD, and E is on segment AB at (2,0) . What is the ratio of the area of triangle ADE to the area of quadrilateral ABCD? Express your answer as a common fraction.

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Guest Feb 17, 2022

-1

323

+73

Use the Squeeze Theorem to evaluate the limit...

Use the Squeeze Theorem to evaluate the limit , if

Can someone help to explain this problem and show me how to get the answer?

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GAMEMASTERX40 Feb 17, 2022

213

Slope Question

Profit is the difference of revenue and cost. Assuming the costs are $150, write an equation that represents the revenue read more ..

phXxnixghXost Feb 17, 2022

241

Chemistry

How many grams would be in 2.3 times 10 to the power of 24 atoms of silver?

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Guest Feb 17, 2022

-1

328

+73

Let f(x) = √x - 5. Find the limit to the math problem.

Let .

Then =
read more ..

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GAMEMASTERX40 Feb 17, 2022

391

+1632

clever algebraic manipulations help...

Given so that , what is the value of ?

Not sure where to start or what to subsitute for this problem... help please thanks :)

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proyaop Feb 17, 2022

Feb 16, 2022

272

Partial fractions

Enter (A,B,C) in order below if A, B, and C are the coefficients of the partial fractions expansion of (2x^2 + 3x - 5)/(x(x^2 - 1)) = A/x + B/(x - 1) + C/(x + 1).

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Guest Feb 16, 2022

All Questions ⁺⁰235546 Questions

Please Help :)

Algebra

Quadratic

Triangles again

geometry

geometry

h(t) = -2t - 1 Find h(h(t))

g(n) = 2n + 2 f(n) = n2 - 2 Find g( f(n))

Help

Please help me!!

Function

Help asap

math

Coordinates

Algebra

Proportion

If $-5\leq a \leq -1$ and $1 \leq b \leq 3$, what is the least possible value of $\displaystyle\left(\frac{1}{a}+\frac{1}{b}\right)\left(\fr

3d geometry

Coordinates

Use the Squeeze Theorem to evaluate the limit...

Slope Question

Chemistry

Let f(x) = √x - 5. Find the limit to the math problem.

clever algebraic manipulations help...

Partial fractions

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