All Questions

281

Coordinates

Line m has the equation y = 3x + 5. Line n has the equation y = kx - 7. Lines m and n intersect at the point (-4, -7). What is the value of k?

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Guest Apr 4, 2022

249

geometric series

In a geometric sequence of real numbers, the sum of the first 2 terms is 7, and the sum of the first 6 terms is 91. What is the sum of the first 4 terms?

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Guest Apr 4, 2022

285

coordinates

What is an equation of the line that passes through the point (-6, -7) and is perpendicular to the line 6x - 5y = 30?

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Guest Apr 4, 2022

403

Find the coefficient of y^4 in the expansion of (2y - 5)^7.

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Guest Apr 4, 2022

297

Percent problem

Two liters of a 30% acid solution are mixed with three liters of a 70% acid solution. What percent of the mixture is acid?

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Guest Apr 4, 2022

314

math problem

The positive five-digit integers that use each of the digits 1, 2, 3, 4 and 5 exactly once are ordered from least to greatest. What is the 16th integer in the list?

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Guest Apr 4, 2022

Apr 3, 2022

297

Algebra

Find positive integers (a,b) so that sqrt(37 + 12*sqrt(7)) = a + b*sqrt(7). Answer in the form of "a, b".

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Guest Apr 3, 2022

310

Coordinates

Find the point P that partitions the line segment AB given the ratio. A (3, 6) B(-4, 3) with the ratio 2:7

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Guest Apr 3, 2022

294

help quadratic

Find an equation for the quadratic that passes through the points (−1,8), (2,−4), and (−6,−12).

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Guest Apr 3, 2022

270

There were a total of 162 tables and benches in a school field. There were 2 times as many benches as tables.

There were a total of 162 tables and benches in a school field. There were 2 times as many benches as tables. After 18 benches and some tables were removed, there were 5 times as many benches as tables left. How many tables were removed from the school read more ..

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Guest Apr 3, 2022

244

math work

Wesley had 11 jars of balls. At first, each of the jars contained the same number of balls. He took out 24 balls from each jar. After that, the total number of balls left in the 11 jars was equal to the total number of balls in 3 of the jars at first. What read more ..

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Guest Apr 3, 2022

233

Arithmetic series

How many terms of the arithmetic sequence 88, 85, 82, . . . appear before the number -71 appears?

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Guest Apr 3, 2022

218

Number Theory

What is the sum of all positive integer solutions less than or equal to 20 to the congruence 13(3x-2) == 26 (mod 6)?

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Guest Apr 3, 2022

-1

342

helpp

There are 40 paper clips in the large box and 4 paper clips in the small box. There are how many times as many paper clips in the large box as in the small box?

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Guest Apr 3, 2022

320

+136

I Need Help ASAP!

Marvin the fly starts at (0,0). Each step, Marvin moves one unit right or one unit up. He is trying to get to the point (5,7). However, at (4,4) there is a frog that will eat him if he goes through that point. In how many ways can Marvin reach read more ..

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NaturalDisaster Apr 3, 2022

249

Inverse vectors question

I know the third one is undefined for both because it isn't invertible, but I'm not sure how to do A and B.
Aj is (1 ;4) and Ai is (3;-1).
Explaination/ read more ..

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Guest Apr 3, 2022

191

Coordinates

Find the reflection of the point (5,3) across the line y = 3x + 2.

Guest Apr 3, 2022

188

Algebra

if z is a complex number satisfying z+(1/z)=1, calculate z^2+ (1/ z^2).

Guest Apr 3, 2022

296

Gravitational physics

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Guest Apr 3, 2022

320

pls help

Let f(x)=3x+2 and g(x)=ax+b, for some constants a and b. If ab=90 and f(g(x))=g(f(x)) for x=0,1,2,3,4,5,6,7,8,9, find all possible values of a. Thanks

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Guest Apr 3, 2022

178

Coordinates

Find the reflection of the point (10,9) in the line 4x - 3y + 12 = 0.

Guest Apr 3, 2022

314

Quadratic

If we express 3x^2 - 6x - 2 + 12x - 7 in the form a(x - h)^2 + k, then what is a + h + k?

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Guest Apr 3, 2022

174

System problem

I need help with this system:
x(y + z) = 39
y(x + z) = 60
z(x + y) = 28 read more ..

Guest Apr 3, 2022

237

Assistance needed

Calculate (z+w)^9 in rectangular form.

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Guest Apr 3, 2022

258

Can anyone solve this, not rlly sure how 2

Consider the complex numbers in the complex plane below:

For each of the complex numbers
\[s, t, u, v, w, read more ..

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Guest Apr 3, 2022

All Questions ⁺⁰236287 Questions

Coordinates

geometric series

coordinates

Find the coefficient of y^4 in the expansion of (2y - 5)^7.

Percent problem

math problem

Algebra

Coordinates

help quadratic

There were a total of 162 tables and benches in a school field. There were 2 times as many benches as tables.

math work

Arithmetic series

Number Theory

helpp

I Need Help ASAP!

Inverse vectors question

Coordinates

Algebra

Gravitational physics

pls help

Coordinates

Quadratic

System problem

Assistance needed

Can anyone solve this, not rlly sure how 2

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