All Questions

340

The number of different top three finishes possible for this race of

The number of different top three finishes possible for this race of
11
cars is
enter your response here. read more ..

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Guest May 31, 2022

222

Divisors

Find the number of positive integers that are divisors of at least one of 10^10,15^7,18^11, 21^5.

Guest May 31, 2022

315

algebra

If a + b = 2, a + c = 7, and b + c = 9, find a + b + c.

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Guest May 31, 2022

337

help asap

Express as a fraction in simplest form.

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Guest May 31, 2022

276

p and q are complex numbers

I would really appreciate any help with this question. I am stuck on it

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p and q are complex numbers such that |q|=4√5 and |p+q|=9√2.
On read more ..

Guest May 31, 2022

316

Fractions

Paul ate 1/6 of his sweets on the bus. 2/6 in the cinema and 2/6 on the way home. How many has he left?

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Guest May 31, 2022

330

Algebra

r and s are the roots of 3x^2 + 4x + 12 = 2x^2 - 8x + 7. Find r^2+s^2

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Guest May 31, 2022

266

complex

Let $z$ be a complex number such that $|z - 1| \le 3.$ Find all possible values of $|iz + 3 - 5i|.$ Enter your answer as an interval.

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Guest May 31, 2022

218

Algebra

Let u and v be the solutions to 3x^2 + 5x + 7 = 2x^2 - 3x + 11. Find u/v + v/u.

Guest May 31, 2022

214

Algebra

Let a and b be the solutions to 5x^2 - 11x + 4 = 3x^2 - 9x + 6. Find 1/a + 1/b.

Guest May 31, 2022

232

pre algebra

A town has a population of 17000 and grows at 3% every year. What will be the population after 7 years, to the nearest whole number?

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Guest May 31, 2022

216

Geometry

M is the midpoint of PQ and N is the midpoint of PR, and O is the intersection of QN and RM, as shown. If QN is perpendicular to PR, QN = 10, and PR = 15, then find OR.

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Guest May 31, 2022

336

+505

Interesting matrix problem

Let R be a region with area 3. The matrix is applied to R, resulting in the region R'. FInd the area of region R'.

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MobiusLoops May 31, 2022

272

Quadratic

Fill in the blank with a constant, so that the resulting quadratic expression is the square of a binomial.

x^2 + 48x + ___

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Guest May 31, 2022

212

Algebra

(a + b)/a = a/(2b) = x
Given a and b are real numbers and x is positive, find x.

Guest May 31, 2022

412

Ari has a total of 22 coins consisting of pennies and nickels. The total value of the coins is $0.54.

Ari has a total of 22 coins consisting of pennies and nickels. The total value of the coins is $0.54.
Which equation can be used to find the number of pennies Ari has?

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Guest May 31, 2022

319

System

x+x+y=14
L+L+z=20
x+y+z=14
x+z+L=18
If numbers x,y,z,L satisfy the equations above, find the value of x+z.

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Guest May 31, 2022

229

Probability

Dakota randomly selected three different integers 1 through 6 What is the probability that the three numbers selected could be the sides of a right triangle?

Guest May 31, 2022

199

Algebra

Suppose x/(x^3 - x^2 - 21x + 45) = A/(x + 5) + B/(x - 3) + C/(x - 3)^2
where A, B, and C are real constants. What is A?

Guest May 31, 2022

213

Geometry

In the diagram, triangle BDF and triangle ECF have the same area.. If DB = 2, BA = 4, and AE = 3, find the length of line EC. Diagram is below.

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Guest May 31, 2022

295

Mie and Miko had an equal amount of money. Mie spent $145 and Miko spent $64. After that, Miko had 4 time

Mie and Miko had an equal amount of money.
Mie spent $145 and Miko spent $64.
After that, Miko had 4 times as much money left as Mie.
How much did each of them have at first? read more ..

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Guest May 31, 2022

-1

230

Coordinates

The perpendicular bisector of the line segment connecting the points (-3,8) and (5,4) has an equation of the form y=mx+b. Find m+b.

Guest May 31, 2022

315

Range

Find the range of the function f(x) = (x^2 + 14x + 9)/(x^2 + 2) as varies over all real numbers.

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Guest May 31, 2022

226

Inequality

What interval consists of all u such that neither 2u nor -20u is in the interval (-10,10)?

Guest May 31, 2022

254

Digits

What is the sum of the final three digits of the integer representation of 5^{100}*2^{100}?

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Guest May 31, 2022

All Questions ⁺⁰237767 Questions

The number of different top three finishes possible for this race of

Divisors

algebra

help asap

p and q are complex numbers

Fractions

Algebra

complex

Algebra

Algebra

pre algebra

Geometry

Interesting matrix problem

Quadratic

Algebra

Ari has a total of 22 coins consisting of pennies and nickels. The total value of the coins is $0.54.

System

Probability

Algebra

Geometry

Mie and Miko had an equal amount of money. Mie spent $145 and Miko spent $64. After that, Miko had 4 time

Coordinates

Range

Inequality

Digits

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