All Questions

Algebra

Given 3x + 2/x - 4 = 2(x + 9) - (7 - 1/x) + 3x + 3/x, what is (x^2 + 1)/x?

Guest Oct 14, 2021

160

Please help thank you

Spencer, Nigel and Greta shared the cost of a massage chair for their mother.
Spencer paid 2/9 of the total cost of the massage chair. Nigel paid 5/8 of what Spencer
paid. Altogether, Spencer and Nigel paid $793. How much did Greta pay for read more ..

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Guest Oct 14, 2021

180

Help

Kai and Dinny folded paper stars over two days. On Friday, Kai folded 21 more
paper starts than Dinny. On Saturday, Dinny folded another 39 paper stars. At the
end of the two days, Kai folded of the total number of paper stars. How many read more ..

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Guest Oct 14, 2021

-2

217

+25

implicit differentiation - calculus (help please!!)

i got the first part but need help on the second part of the question :(

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unaza Oct 14, 2021

-2

207

+25

implicit differentiation - calculus (stumped!)

dont know what to do :(

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unaza Oct 14, 2021

-2

150

+25

implicit differentiation - calculus (need help!!)

not sure how to do it :(

unaza Oct 14, 2021

-2

160

+25

implicit differentiation - calculus (please help!)

i dont know how to do this! please help, im stuck :(

unaza Oct 14, 2021

-2

163

+25

implicit differentiation - calculus (please help!)

please help!

unaza Oct 14, 2021

103

Coordinates

Let a and b be real numbers, where a < b, and let A = (a,a^2) and B = (b,b^2). The line AB (meaning the unqiue line that contains the point A and the point B) has x-intercept (-3/2,0) and y-intercept (0,1). Find a and b. Express your answer read more ..

Guest Oct 14, 2021

176

Coordinates

Find all points that are 13 units away from the point (-2,7) and that lie on the line x - 2y = 10. Give your answer as a list of points separated by semicolons, with the points ordered such that their x-coordinates are in increasing order. (So "(1,-3);read more ..

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Guest Oct 14, 2021

109

help with polynomial

When the expression
\[1-1x+2x^2-2+3x-3x^2+4-4x+5x^2 - 5x + 6x - 7x^2 + 8x - 9\]
is written in the form $ax^2 +bx+c$, where $a$, $b$, and $c$ are non-zero integers, what is the value of $a + b + c$?

Guest Oct 14, 2021

131

help

Gears aligned as shown below having arrows pointing upward. Gear A has 18 teeth; gear B has 48 teeth; and gear C has 36 teeth. What is the least positive number of rotations gear A must make before the arrows will again be pointing upward in the same way? read more ..

Guest Oct 14, 2021

153

what is -0.05 divided by -5 over 8? need answer fast

what is -0.05 divided by -5 over 8?

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Guest Oct 14, 2021

137

Please help. Thank you!

In the equation 3x+4y=z, the answer has 3 positive integer solutions. Find the largest possible value of z.

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Guest Oct 14, 2021

-1

187

+28

Geometric Series and Applications

What is the sum of the series? 3+12+48+192+...+49,152

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ora2004 Oct 14, 2021

-1

215

+28

Geometric Series and Applications

What is the sum of the first 7 terms of the series −8+16−32+64−...?

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ora2004 Oct 14, 2021

396

+478

Percents question ASAP pls!!!

if a is 4 percent of b and b is 25 percent of c, what percent of a is c??

Pls help, Thank you.

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weredumbmaster22 Oct 14, 2021

183

Base numbers

What is the average of all positive integers that have four digits when written in base 3, but three digits when written in base 6? Write your answer in base 10.

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Guest Oct 14, 2021

187

help!

In acute triangle , altitudes , , and intersect at the orthocenter . If , , and , then find the length of .

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Guest Oct 14, 2021

100

fasfa

determine the value of y so that the distance between the points (-2 -3) and (-3 y) is equal to 5

Guest Oct 14, 2021

Complex Numbers

There exists a complex number of the form z = x + yi, where x and y are positive integers, such that
z^3 + 14 = -74 + ci,
for some integer c. Find z.

Guest Oct 14, 2021

206

Inverse Functions

What is the inverse of h(y) = (1 + y)/(8 - 3y).

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Guest Oct 14, 2021

125

Confusing question

A circular target has scoring regions of 10 and 13 points. What is the largest score that cannot be obtained by throwing any number of darts that land on the target?
read more ..

Guest Oct 14, 2021

Oct 13, 2021

179

geometry

In acute triangle ABC, we know that the side lengths AB = sqrt(41) and BC = sqrt(34) and that altitude BD = 5. What is AC?

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Guest Oct 13, 2021

All Questions ⁺⁰215490 Questions

Algebra

Please help thank you

Help

implicit differentiation - calculus (help please!!)

implicit differentiation - calculus (stumped!)

implicit differentiation - calculus (need help!!)

implicit differentiation - calculus (please help!)

implicit differentiation - calculus (please help!)

Coordinates

Coordinates

help with polynomial

help

what is -0.05 divided by -5 over 8? need answer fast

Please help. Thank you!

Geometric Series and Applications

Geometric Series and Applications

Percents question ASAP pls!!!

Base numbers

help!

fasfa

Complex Numbers

Inverse Functions

Confusing question

geometry

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