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447

halp

The foci of a certain ellipse are at (3, 10+sqrt105) and (3,10-sqrt105) The endpoints of one of the axes are(-5, 10) and (11,10) Find the semi-major axis.
thx

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Guest Dec 22, 2020

481

Both roots of the quadratic equation are prime numbers. How many possible values of are there?

Both roots of the quadratic equation are prime numbers. How many possible values of k are there?

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Guest Dec 22, 2020

512

geometry

Rhombus ABCD has perimeter 148, and one of its diagonals has length 28. How long is the other diagonal?

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Guest Dec 22, 2020

817

help ASAP

Matt and Ryan are playing an exciting round of Rock Paper Scissors: The Collectible Card Game. Matt is convinced that Rock can beat anything, so his deck consists only of 8 Rock cards. Ryan's deck consists of 5 Paper cards and 3 Scissors cards. In the game, read more ..

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Guest Dec 22, 2020

566

help line question

Let line L1 be the graph of 5x + 8y= -13. Line L2 is perpendicular to line L1 and passes through the point (10, -10). If line L2 is the graph of the equation y = mx + b, then find m + b.

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Guest Dec 22, 2020

519

Help

If \[f(x) = \begin{cases} x^2-4 &\quad \text{if } x \ge -4, \\ x + 3 &\quad \text{otherwise}, \end{cases} \]then for how many values of $x$ is $f(f(x)) = 5$?

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Guest Dec 22, 2020

434

heeeeelp

if y= 1+5x-2x^2 , the average of rate change of y with respect to x over the interval [0,2] is

Guest Dec 22, 2020

469

help meee

the function f(x)= x+4 over x^2-4 is continuous for

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Guest Dec 22, 2020

483

(0.1) 2 -8(0.1)+1=

(0.1)2-8(0.1)+1

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Guest Dec 22, 2020

618

ABCD trapezoid

ABCD trapezoid, bases AD = 4 and BC = 12. Also, diagonals AC and BD are perpendicular. Find the area of ABCD.

read more ..

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Guest Dec 22, 2020

615

how to work fractions on this thing?

how to work fractions on this calculator?

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Guest Dec 22, 2020

531

help with geometry

The figure shows congruent three squares aligned with the sides of an equilateral triangle. The inner sides of the squares form another equilateral triangle. What is the ratio of the area of the smaller equilateral triangle to the larger equilateral read more ..

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Guest Dec 22, 2020

-2

656

+73

Ellie is investigating potential relationships between one having a canine pet preference and a female gender.

Ellie is investigating potential relationships between one having a canine pet preference and a female gender. Assume a survey of 101 randomly selected persons revealed the following data:

The probability of selecting a person with read more ..

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GAMEMASTERX40 Dec 22, 2020

562

counting question

In how many ways can 8 people be seated in a row of chairs if two of the people, John and Paul, refuse to sit next to each other?

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Guest Dec 22, 2020

674

Sorry for the repost, last time the guest gave no explanation, though it might be correct, I always look for the knowledge.

How many numbers are in the range of the function $f(x) = \frac{\lceil 5x - 5\lfloor x \rfloor \rceil}5$?

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Guest Dec 22, 2020

389

inequality

Find all real numbers x such that 3x - 7 <= 6x + 9. Give your answer as an interval.

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Guest Dec 22, 2020

Dec 21, 2020

596

system of equations

Find the product of the y-coordinates of all the distinct solutions (x,y) for the two equations y = x^2 - 8 and y^2 = -6x + 40.

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Guest Dec 21, 2020

-1

690

+73

Julia is studying potential relationships between one having a pick-up truck and attached ear lobes.

Julia is studying potential relationships between one having a pick-up truck and attached ear lobes. Assume a survey of 201 randomly selected persons revealed the following data:

The probability of selecting a person with no pick-up read more ..

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GAMEMASTERX40 Dec 21, 2020

563

oblique asymptote

Find a and b so that the rational function f(x) = (ax^4 + bx^3 + 3) / (x^3 - 2) has an oblique asymptote given by y = x - 5.

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Guest Dec 21, 2020

928

+29

quick hard question - help Asap

A circle is centered at O and has an area of 48pi. Let Q and R be points on the circle, and let P be the circumcenter of triangle QRO. If P is contained in triangle QRO and triangle PQR is equilateral, then find the read more ..

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ianw11 Dec 21, 2020

795

Hi One question

How many numbers are in the range of the function $f(x) = \frac{\lceil 5x - 5\lfloor x \rfloor \rceil}5$?

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Guest Dec 21, 2020

685

+73

Mary Kate is describing potential relationships between one having a military veteran status and an optimistic outlook on the economy.

Mary Kate is describing potential relationships between one having a military veteran status and an optimistic outlook on the economy. Assume a survey of 401 randomly selected persons revealed the following data:

The probability of read more ..

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GAMEMASTERX40 Dec 21, 2020

424

math

225/197

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Guest Dec 21, 2020

All Questions ⁺⁰238062 Questions

halp

Both roots of the quadratic equation are prime numbers. How many possible values of are there?

geometry

help ASAP

help line question

Help

heeeeelp

help meee

(0.1) 2 -8(0.1)+1=

ABCD trapezoid

how to work fractions on this thing?

help with geometry

Ellie is investigating potential relationships between one having a canine pet preference and a female gender.

counting question

Sorry for the repost, last time the guest gave no explanation, though it might be correct, I always look for the knowledge.

inequality

system of equations

Julia is studying potential relationships between one having a pick-up truck and attached ear lobes.

oblique asymptote

quick hard question - help Asap

Hi One question

Mary Kate is describing potential relationships between one having a military veteran status and an optimistic outlook on the economy.

math

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