All Questions ⁺⁰232917 Questions

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338

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help pls rq

for (i) i got the answer 13 056
-----> (7/8)x = 11 424
yet, straight says something else... (9996)
so can someone please confirm who's right and why? read more ..

Guest Oct 21, 2021

0

331

1

I need to rewrite an equation so it has no fractions and I'm not sure how to do it.

I need to rewrite an equation so it has no fractions and I'm not sure how to do it.
read more ..

Guest Oct 21, 2021

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370

1

of 80% in her first three exams. She then had 94% on her next exam. Celia stated that her overall mean mark was 87% because the mean of 80 a

of 80% in her first three exams.
She then had 94% on her next exam.
Celia stated that her overall mean mark was 87% because the
mean of 80 and 94 is 87. Is Celia’s reasoning correct? Explain.

Guest Oct 21, 2021

0

449

1

+677

Re-post

Straight Oct 21, 2021

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220

1

Coordinates

What is the x-coordinate of the point on the x-axis that is equidistant from points A(-2,8) and B(0,4)?

Guest Oct 21, 2021

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265

2

Geometry

Let line AB and line CD be chords of a circle, that meet at the point Q inside the circle. If AQ = 16, BQ = 12, and CD = 36, then find the minimum length of CQ.

Guest Oct 21, 2021

0

453

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Geometry

Find the coordinates of point $P$P along the directed line segment $AB$AB , from $A\left(8,\ 0\right)$A(8, 0) to $B\left(3,-2\right)$B(3,−2) , so that the ratio of $AP$AP to $PB$PB is $1$1 to $4$4 . read more ..

Guest Oct 21, 2021

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345

1

-2(5+1) 48

Guest Oct 21, 2021

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276

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Algebra

If a + b = 7 and a^3 + b^3 = 42 + 7(a^2 + b^2), what is the value of 1/a + 1/b? Express you answer as a common fraction.

Guest Oct 21, 2021

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179

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Inequality

Let a, b, c, d, e, f be nonnegative real numbers.
Prove that (a^2 + b^2)(c^2 + d^2)(e^2 + f^2) >= 8abcdef.

Guest Oct 21, 2021

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351

2

2022^2021+2019^2020 можете сказать последнюю цифру

2022^2021+2019^2020 можете сказать последнюю цифру

Guest Oct 21, 2021

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327

2

question

how to get 32 from 2 9 7

Guest Oct 21, 2021

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379

2

Obtain the general solution using Separation of Variables.

dr = b(cosθdr + rsinθdθ)

Guest Oct 21, 2021

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218

0

Obtain the differential equation of the family of plane curves described.

Parabolas with axis parallel to the x-axis

Guest Oct 21, 2021

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320

1

Number theory

If m is the smallest positive integer such that m! is a multiple of 4125, and n is the smallest positive integer such that n! is a multiple of 2816000, then find n-m.

Guest Oct 21, 2021

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313

1

help with functions

Let
f(x) = 12 - 2x if x <= 4
f(x) = ax + b if x > 4
read more ..

Guest Oct 21, 2021

0

326

1

System

Real numbers x and y satisfy
x + xy = 250y
x - xy = 240y
read more ..

Guest Oct 21, 2021

0

381

3

+12

inequality help

I need help proving that
I have tryed cauchy and got

helpp Oct 21, 2021

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323

1

Probability

Two real numbers are chosen at random between 0 and 2. What is the probability that the sum of their squares is no more than 1? Express your answer as a common fraction in terms of pi.

Guest Oct 21, 2021

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353

1

pls help

Given that 2^x=7, find the value of 4(x - 1).

Guest Oct 21, 2021

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304

1

need probability help

Two different 2-digit numbers are randomly chosen and multiplied together. What is the probability that the resulting product is a multiple of 5?

Guest Oct 21, 2021

0

346

3

+140

Number Theory

Let return the number of distinct ordered pairs of positive integers such that for each ordered pair, . Note that when , and are distinct. What is the smallest positive integer for read more ..

sherwyo Oct 21, 2021

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236

1

help geometry

In trapezoid ABCD, AB is paralell to CD, and AB < CD. The base CD has a length of 8 The legs AD and BC have lengths of 7 and the diagonal BD has a length of 12 Find the area of the trapezoid.

Guest Oct 21, 2021

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