All Questions ⁺⁰238458 Questions

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Gabriella drives her car 400 miles and averages a certain speed. If the average speed had been 8mph less, she could have traveled only 350mi

Gabriella drives her car 400 miles and averages a certain speed. If the average speed had been 8mph less, she could have traveled only 350miles in the same length of time. What is her average speed?

Guest Oct 16, 2022

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270

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Algebra

Assuming that p \neq 0 and q \neq 0, simplify pq^3^3 4p^2q^2 2pq^2^3

Guest Oct 16, 2022

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269

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Question

Compute ,where each argument is greater than the previous one by 90 degrees.

Guest Oct 16, 2022

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267

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help

For all real numbers x except x=0 and x=1 the function f is defined by f(x/x-1)=1/x. Suppose 0<=t<=pi/2. Given that f(Sec^2t)=(g(t))^2 for some trigonometric function g, find g.
Enter your answer as one of the six options: sin, read more ..

Guest Oct 16, 2022

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276

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triangles

Let ABC be a triangle, and let its angle bisectors be AD, BE, and CF, which intersect at I. If DI = 3, BD = 4, and BI = 8, then find the area of triangle ABC.

Guest Oct 16, 2022

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222

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Algebra

Compute the sum 3+8+13+...293+298+303+ .... +408+413+418.

Guest Oct 16, 2022

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257

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+70

help

How many distinct unit cubes are there with two faces painted red, two faces painted green and two faces painted blue? Two unit cubes are considered distinct if one unit cube cannot be obtained by rotating the other.

Hamburger Oct 16, 2022

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298

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Algebra

Find all real numbers a that satisfy
1/(a^3 + 7) - 7 = -a^3/(a^3 + 7) + 5.

Guest Oct 16, 2022

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224

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Graphing

What is the smallest distance between the origin and a point on the graph of y = \frac{1}{\sqrt{2}} (x^2 - 13)

Guest Oct 16, 2022

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304

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Integer

For how many integer values of M is M/30 strictly between 1/3 and 5/3?

Guest Oct 16, 2022

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229

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Domain

What is the domain of the real-valued function f(x) = (2x - 7)/sqrt(x^2 - 7x + 6)?

Guest Oct 16, 2022

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237

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linear system

The real numbers x, y and z satisfy the equations x + 2y + 3z = 950 and 3x + y = 1450 and 2y + z = 1880. What is the average of x, y and z

Guest Oct 16, 2022

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267

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graphing question

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 above, then the two graphs intersect at one point. What is that point?
Enter your answer as an ordered pair.
read more ..

Guest Oct 16, 2022

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333

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Help Please Asap

Tina lives 30 miles away from her work, and she normally drives at 45 miles per hour. If she wants to get to work 10 minutes earlier, how fast should she drive to work, in miles per hour?

Guest Oct 16, 2022

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240

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helppppp

Guest Oct 16, 2022

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318

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help pls

Could someone point me in the right direction? Thanks!

If x is an angle such that tan x + sec x = 2, then evaluate cos x.

Guest Oct 16, 2022

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288

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question

Compute where each argument is greater than the previous one by 90 degrees.

Guest Oct 16, 2022

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229

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Algebra

Let a and b be the roots of the quadratic x^2 - 5x + 3 = 2x^2 - 7x + 11. Find the quadratic whose roots are a^4 and b^4.

Guest Oct 16, 2022

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236

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parabolas

The graph of y = f(x) is a parabola whose vertex is at (1, -2). The graph of y = f(2x - 3) is also a parabola. Where is the vertex of the graph of y = f(2x-3)?

Guest Oct 16, 2022

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228

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Rationalize

Simplify and rationalize the denominator: 1/(1 + 1/(sqrt(3) + 2)).

Guest Oct 16, 2022

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275

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Function

For any real number k, the graph of y = 7x^2 + kx - 4k + kx^2 - 5x + 6k passes through a fixed point (a,b). Find (a,b).

Guest Oct 16, 2022

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267

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Piecewise function

Let
f(x) = x/2 + 1 if x <= 1
f(x) = 7 - 3x if x > 1
read more ..

Guest Oct 16, 2022

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259

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Algebra

If a + b = 7 and a^3 + b^3 = 45, what is the value of the sum 1/a + 1/b? Express your answer as a common fraction.

Guest Oct 16, 2022

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278

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Algebra problem

Find all real numbers x such that (3x - 27)^3 + (27x - 3)^3 = (3x + 27x - 30).

Guest Oct 16, 2022

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