All Questions ⁺⁰230542 Questions

0

20

1

domain

Find the domain of the function $f(x) = \sqrt{6-x-x^2-2x^2}$.

Guest Sep 6, 2023

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30

2

solve

$\dfrac{2^2 \cdot 4^2 \cdot 8^2}{2^2 \cdot 2^4 \cdot 2^8}.$

Guest Sep 6, 2023

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32

1

help with algebra

Real numbers $x$ and $y$ have an arithmetic mean of $18$ and a geometric mean of $\sqrt{47}$. Find $x^2+y^2$.

Guest Sep 6, 2023

Sep 5, 2023

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24

1

PLEASEEEEE HELPPPPP

Given, △PQR≅△STU and ∠R=80∘ and ∠S=78∘, What is the measure of ∠Q? Enter your answer in the box

Guest Sep 5, 2023

0

29

1

domain

Find the domain of the function $f(x) = \frac{\sqrt{x-2}}{\sqrt{5}} + \sqrt{(x - 1)(x + 2)(x + 4)}.$

Guest Sep 5, 2023

0

28

1

need help plz

Three runners, Dirk, Edith, and Foley all start at the same time for a $24$ km race, and each of them runs at a constant speed. When Dirk finishes the race, Edith is $5$ km behind, and Foley is $6$ km behind. When Edith finishes the race, how far read more ..

Guest Sep 5, 2023

0

34

1

help plz!

help how do you do this
Ruth has a beaker containing a solution of 800 mL of acid and 200 mL of water. She thinks the solution is a little strong, so she drains 150 mL from the beaker, adds 150 mL of water, and stirs the read more ..

Guest Sep 5, 2023

0

27

1

need help

A circle with radius $5$ and center $(a,b)$ is tangent to the lines $y = 6$ and $y = x.$ Compute the largest possible value of $a + b.$

Guest Sep 5, 2023

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28

0

help binomials

Find the sum of all values of $k$ for which $x^2 + kx - 9x + 25 - 9$ is the square of a binomial.

Guest Sep 5, 2023

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25

0

help with function

The function $f(x),$ defined for $x > 0,$ is positive, differentiable, and decreasing. The function $f(x)$ has the following property: Let $P$ be a point on the graph, and draw the tangent to the graph at $P.$ Let the tangent meet the $x$-axis and $y$-axis read more ..

Guest Sep 5, 2023

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25

0

cones

A sphere is inscribed in a cone with height $3$ and base radius $5$. What is the ratio of the volume of the sphere to the volume of the cone?

Guest Sep 5, 2023

0

34

0

need help

The vertices of a triangle are the points of intersection of the line $y = -x-1$, the line $x=2$, and $y = x +2$. Find the center of the circle passing through all three vertices.

Guest Sep 5, 2023

-2

30

1

+819

digits

All of the digits of a three-digit integer are distinct and non-zero. Furthermore, the three-digit integer is divisible by 13. Find the largest three-digit integer that has these properties.

maximum Sep 5, 2023

0

28

1

+62

help

a collection s of integers is defined by the following three rules: (i) 2 is in s; (ii) for every x in s, 3x and x + 7 are also in s; (iii) no integers except those defined by rules (i) and (ii) are in s. what is the smallest integer greater that 2004 which read more ..

Hamburger Sep 5, 2023

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27

1

{4/2} + (10/2)}

{4/2} + (10/2)}

Guest Sep 5, 2023

0

20

1

help

The measures of the interior angles of a convex hexagon form an increasing arithmetic sequence. How many such sequences are possible if the hexagon is not equiangular and all of the angle degree measures are positive integers less than 150 degrees?

Guest Sep 5, 2023

0

34

1

help with rates

Five workers have been hired to complete a job. If one additional worker is hired, they could complete the job $8$ days earlier. If the job needs to completed $28$ days earlier, how many additional workers should be hired?

Guest Sep 5, 2023

-1

25

3

+618

digits

How many digits ($0$ to $9$) never appear as the last digit of a perfect cube?

bingboy Sep 5, 2023

-1

16

0

+618

expected value

I draw a card from a standard $52$-card deck. If I draw an Ace, I win $1$ dollar. If I draw a $2$ through $10$, I win a number of dollars equal to the value of the card. If I draw a face card (Jack, Queen, or King), I win $10$ dollars. read more ..

bingboy Sep 5, 2023

-2

29

0

+819

logarithms

If $\log_{b/a} a^2 b = 2$, where $a$ and $b$ are positive real numbers, then find $\log_{ab} b$.

maximum Sep 5, 2023

-2

22

0

+819

trig question

In right triangle $ABC$, we have $\angle BAC = 90^\circ$ and $D$ is the midpoint of $\overline{AC}$. If $AB = 7$ and $BC = 7 \sqrt{3}$, then what is $\tan \angle BDC$?

maximum Sep 5, 2023

Sep 4, 2023

+1

23

5

+124

im struggling so much right now

hi there!!
here's the problem ive been working for like an hour on and still cant get right:
Calculate
As usual, the output of an inverse trig function should be in radians. read more ..

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heartSTORM907 Sep 4, 2023

0

31

0

+4

simplify (x p+(1/2q) * y2p-q ) / (y2x)p * (xq)1/

simplify (x p+(1/2q) * y2p-q ) / (y2x)p * (xq)1/

kaykay Sep 4, 2023

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34

1

+4

The admission fee at an amusement park is $3.75 for children and $5.60 for adults. On a certain day, 318 people entered the park, and the ad

The admission fee at an amusement park is $3.75 for children and $5.60 for adults. On a certain day, 318 people entered the park, and the admission fees collected totaled $1433. How many children and how many adults were admitted?

werdnnaa Sep 4, 2023

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