All Questions ⁺⁰237643 Questions

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274

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help

Find the sum of all solutions to the equation $4x(x-3) = 23$.

Guest Jan 4, 2023

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153

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Constant term

Find the constant term in the expansion of (2z - 1/(z*sqrt(z)) + 1)^4.

Guest Jan 4, 2023

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159

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help plz

Fill in the blanks to make the equation true.

xy xy^2 xy^3 x^2 y x^3 y x^2 y^2 x^2 y^3 x^3 y^2
read more ..

Guest Jan 4, 2023

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164

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Factoring

We are looking to factor 23x^2 + kx - 5 + x^2 - 3. Some values of k allow us to factor it as a product of linear binomials with integer coefficients. what are all such values of k?

Guest Jan 4, 2023

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191

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Digits

The four-digit numeral 3AA1 is divisible by 19. What digit does A represent?

Guest Jan 4, 2023

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165

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License Plates

A car license plate contains three letters followed by four digits. How many different plates can be made if no two consecutive letters can be the same, if the letters I, O, Q, W, Y cannot be used, and if the number 0 can only be used once? read more ..

Guest Jan 4, 2023

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157

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help quadratic

What real value of t produces the smallest value of the quadratic t^2 -9t - 36 + t^2 - t + 14?

Guest Jan 4, 2023

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164

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system

If the system of equations 3x+y=a, 2x+5y=2a, has a solution (x,y) when x=12, compute a.

Guest Jan 4, 2023

Jan 3, 2023

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212

1

Help plz

The solutions of the equation 30z^2-7z-20=68 are z=r and z=s. Find (r+3)(s+3).

Guest Jan 3, 2023

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189

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I need help!!

Find the largest value of n such that 3x^2+nx+72 can be factored as the product of two linear factors with integer coefficients.

Guest Jan 3, 2023

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175

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quadratic

Let r and s be the roots of 3x^2+4x-12=2x^2-6x+8. Find r^2 + s^2

Guest Jan 3, 2023

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171

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Probability

A stick has a length of 6 units. The stick is then broken at two points, at random. What is the probability that all three resulting pieces are shorter than 4 units?

Guest Jan 3, 2023

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186

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word problem

Five times a number is divided by 7 more than that number minus 4. If the result is 18, then what was the original number.

Guest Jan 3, 2023

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181

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Algebra

Seven years ago, Grogg's dad was 9 times as old as Grogg, and 6 years ago, his dad was 3 times as old as Grogg. How old is Grogg's dad currently?

Guest Jan 3, 2023

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155

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Precalc

In the SuperLottery, three balls are drawn (at random, without replacement) from white balls numbered from 1 to 12, and one SuperBall is drawn (at random) from red balls numbered from 13 to 20. When you buy a ticket, you choose three numbers from 1 to 12, read more ..

Guest Jan 3, 2023

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240

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System

Find all solutions to the system
a + b = 14
a^3 + b^3 = 812 + a^2 + b^2

Guest Jan 3, 2023

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231

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Equation

Find all real numbers a that satisfy
1/(a^3 + 7) = -a^3/(a^3 + 7)

Guest Jan 3, 2023

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162

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what expression is equivalent to 5c+2+d-1

what expression is equivalent to 5c+2+d-1

Guest Jan 3, 2023

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162

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Precalc

Fill in the blanks:

read more ..

Guest Jan 3, 2023

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173

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help algebra

Carissa the chessplayer is a very, very slow walker. In fact, she walks at 100 meters per hour when walking uphill, 150 meters per hour when walking across flat ground, and 200 meters per hour when walking downhill. One day, Carissa walks read more ..

Guest Jan 3, 2023

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157

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URGENT

The price of an all-access ticket to the fair is $42.99 before tax. Roland bought the all-access ticket for 40% off. He then paid 7% sales tax on the discounted price. Part A: How much did Roland pay in sales tax? Show all work and steps in your solution. read more ..

Guest Jan 3, 2023

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156

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trig

(a) In triangle ABC, angle BCA = pi/4, AB = 5, and AC = 6. Find the sum of all distinct possible values of BC If there are no possible values, enter 0.

(b) In triangle ABC, angle BCA = pi/4, AB = 6, and AC = 4. Find read more ..

Guest Jan 3, 2023

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200

1

help

Let w be a nonreal root of z^3=1. Find the number of ordered pairs (a,b) of integers such that |aw+b|=1.

Guest Jan 3, 2023

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166

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Analytic geometry

A median of a triangle is a line segment joining a vertex of a triangle to the midpoint of the opposite side. The three medians of a triangle are drawn below.

Note that the three medians appear to intersect at the same point! Let's read more ..

Guest Jan 3, 2023

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228

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+660

Urgent Help is needed! CPhill or someone pls help!

Suppose that x,y,z are positive integers satisfying x ≤ y ≤ z, and such that the product of all three numbers is twice their sum. What is the sum of all possible values of z?

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Keihaku Jan 3, 2023

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