All Questions ⁺⁰237680 Questions

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389

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help algebra

The height of an object is given by h = -16t^2 + 137t + 100
Find the two points in time when the object is 148 feet above the ground . Round your answer to the nearest hundredth of a second (two decimal places)

Guest Jul 25, 2021

0

325

1

helppppp

Let x = -1 Find x + x^2 + x^3 + . . . + x^2010 + x^2011

Guest Jul 25, 2021

0

318

1

help!!

Suppose that a and b are positive integers for which a has 3 factors and b has a factors. If b is divisible by a , then what is the least possible value of b

Guest Jul 25, 2021

0

438

1

+41

CPhill or anybody help

Given that $a > 0$, if $f(g(a)) = 8$, where $f(x) = x^2 + 8$ and $g(x) = x^2 - 4$, what is the value of $a$?

CENTTRAL Jul 25, 2021

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435

1

help

Rewrite the expression g^4 + 12g^2 + 9 - 10g^2 + 8 in the form c(g^2 + p)^2 + q. What is q?

Guest Jul 25, 2021

0

570

1

Parabola

You throw a ball toward a trash can. The ball follows a parabolic path through (10, 10), (−14, 10), and (20, 7). What is the equation of the parabolic path?

Guest Jul 25, 2021

0

270

0

Help algebra

\[\dfrac{2x-1}{(x+1)(x-3)(x+4)} = \dfrac{A}{(x+1)}\ + \dfrac{B}{(x-3)}\ + \dfrac{C}{(x+4)}\]
The above rational fraction is expressed in the form of partial fractions. Evaluate $A + B + C$.

Guest Jul 25, 2021

0

290

0

Polynomial

Let .
f(x) = x^{10}+5x^9-8x^8+7x^7-6x^6+12x^5-4x^4-8x^3+12x^2-5x-5
Without using long division, find the remainder when f(x) is divided by x^2 - 1.

Guest Jul 25, 2021

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452

2

Geometry

A right-angled triangle has a perimeter of 1276 and a longest side of 533. What is the length of the inradius?

Guest Jul 25, 2021

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304

0

Polynomial

Let be a polynomial such that f(0) = 4, f(-1) = 5, and f(2) = 10. Find the remainder when f(x) is divided by x(x + 1)(x - 2).

Guest Jul 25, 2021

+1

544

6

+491

Help please

I dont understand these quetions.

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Elijah Jul 25, 2021

Jul 24, 2021

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472

1

+8

Find the number integer values of n so that (n + 2i)4 is an integer.

Find the number integer values of n so that (n + 2i)^4 is an integer.

Dragonknite911 Jul 24, 2021

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486

3

Precalc

Find the value of theta, 0 < theta < 90, such that cos 5 = sin 75 + sin theta . answer is in degrees, not radians

Guest Jul 24, 2021

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438

1

Coordinates

The length of the segment between the points (2a, a - 4) and (4,1) is 2*sqrt(30) units. What is the product of all possible values for a?

Guest Jul 24, 2021

0

285

0

help algebra

Let A and B be real numbers such that A/(x - 5) + B(x + 1) = (4x^2 - 16x - 17)/(x - 5). What is A+B?

Guest Jul 24, 2021

0

447

2

Right Triangle

The hypotenuse of an isosceles right triangle is 14. What is the area of the triangle?

Guest Jul 24, 2021

0

473

3

CPhill or anybody who can give me the answer. HELP!!!

For what value of the constant $a$ does the system of equations below have infinitely many solutions? \begin{align*} 2x + 5y &= -8,\\ 6x &= 16 + a - 15y \end{align*}

Guest Jul 24, 2021

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450

1

Domain

If h(x) is a function whose domain is [-8,8], and g(x)=h(2x^2), then the domain of g(x) is an interval of what width?

Guest Jul 24, 2021

0

405

1

help pls

In the equation 1/j + 1/k = 1/3 + 1/5, both j and k are positive integers. What is the sum of all possible values for k?

Guest Jul 24, 2021

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445

1

Roots

FInd 1/(a - 1) + 1/(b - 1) if a and b are the roots of the equation 2x^2 - 7x + 2 = 11x - 15.

Guest Jul 24, 2021

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369

0

plz help

In triangle ABC, BC = 4, AC = 3*sqrt(2), and angle C = 60 degrees. Altitudes AD, BE, and CF intersect at the orthocenter H. Find AH:HD.

Guest Jul 24, 2021

0

479

1

Graphing

The graph of y=f(x) is shown in red below. Find f(2)

Guest Jul 24, 2021

0

439

1

Help with digits

The sum of the digits of a two-digit nunber is 7. When you reverse the digits of the original number the new number is 27 more than the orginal number. What is the value of the original number?

ElectricPavlov ●

Guest Jul 24, 2021

0

345

1

need help please

The functions $f(x)$ and $g(x)$ satisfy $f(0) = 3,$ $g(0) = -4,$ and \begin{align*} f'(x) &= 7f(x) + 2g(x), \\ g'(x) &= -4f(x) + g(x). \end{align*}Find $f(x).$

Guest Jul 24, 2021

0

436

1

Quadratic

The quadratic ax^2 + bx + c can be expressed in the form (x - 4)^2 + 8. When the quadratic is expressed in the form 3ax^2 + 3bx + 3c, what is n(x - h)^2 + k, what is h?

Guest Jul 24, 2021

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