All Questions ⁺⁰237686 Questions

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329

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+15

Help please!

Turtles can live a long time. This stem-and-leaf plot shows the ages (in years) of the turtles in the reptile house of the Kalamazoo Zoo:
A box turtle and a map turtle escape from the reptile house of the Kalamazoo Zoo. The box turtle is older than the read more ..

Arrakis Jan 9, 2022

0

436

2

Algebra

Let u and v be the solutions to 3x^2 + 5x = 7 = 0. Find u^2 + v^2.

Guest Jan 9, 2022

0

358

1

Help

A group of friends were helping themselves to cookies from a plate. John took 1/3 of the cookies. Then Paul ate 3/4 of the remaining cookies. After that, Michael ate 2/3 of what was left. Finally, Betty took 1 cookie. They saw that there was only 1 cookie read more ..

Guest Jan 9, 2022

0

384

2

Geometry

Rhombus ABCD has perimeter 148, and one of its diagonals has length 72. What is the area of ABCD?

Guest Jan 9, 2022

0

386

1

Geometry

One of the bases of a trapezoid has length 10, and the height of the trapezoid is 4. If the area of the trapezoid is 48, then how long is the other base of the trapezoid?

Guest Jan 9, 2022

0

390

1

Counting

How many nine-digit numbers can be made using each of the digits 1 through 9 exactly once with the digits alternating between odd and even, and the first digit is 1?

Guest Jan 9, 2022

0

314

1

HELP ASAP

Let be a function such that
for all real numbers and
Let be the number of possible values of , and let be the sum of all possible values of Find

Guest Jan 9, 2022

0

409

1

Complex Numbers

Express 1/(1 + 1/(1 + i)) in the form a + bi, where a and b are real numbers.

Guest Jan 9, 2022

0

401

1

Complex Numbers

Express (2 + i)/(4 + i - 3 + 6i) in the form a + bi, where a and b are real numbers.

Guest Jan 9, 2022

0

406

1

Counting

A theater group has eight members, of which four are females. How many ways are there to assign the roles of a play that involve one female lead, one male lead, and two different objects that can be played by either gender?

Guest Jan 9, 2022

0

277

0

Inverse functions

Let
f(x) = k(x) if x > 0
f(x) = -1/(2x) - x if x < 0
f(x) = 0 if x = 0 read more ..

Guest Jan 9, 2022

0

334

1

Sin

why does sin-1 not work?

Guest Jan 9, 2022

0

324

1

Word Problems

Maribelle had eight pencils. Her baby brother, Lucas, broke four of them. How many working pencills did Maribelle have left?

Guest Jan 9, 2022

0

398

1

Math

Mrs. Conway was passing out marshmallows for her class. Students in her class were making gingerbread houses. She bought eight packs of marshmallows. Each pack had 45 marshmallows. There were thirty kids in her class, how many marshmallows will each student read more ..

Guest Jan 9, 2022

0

379

1

trig

In triangle ABC, cos B = 3/5 and angle A is 90 degrees. What is tan B?

Guest Jan 9, 2022

0

647

1

write 512 as a power of two different bases each base less than 512

write 512 as a power of two different bases each base less than 512

Guest Jan 9, 2022

0

331

1

Geometry problem

In square ABCD, AD is 4 centimeters, and M is the midpoint of CD. Let O be the intersection of AC and BM. Let P be the intersection of DO and BC. What is the ratio of BP to PC? Express your answer as a common fraction.
read more ..

Guest Jan 9, 2022

0

253

0

Number Theory

For how many positive integers n less than 100 is 5^n + 8^n+1 + 13^n+2 a multiple of 6?

Guest Jan 9, 2022

0

371

1

help algebra

Given that x=2 is a root of p(x)=x^4-3x^3-18x^2+90x-100, find the other roots (real and nonreal).

Guest Jan 9, 2022

0

261

0

Algebra

Suppose f and g are polynomials, and that h(x)=f(g(x))+g(x). Find the degree of g(x) given that the degree of h(x) is 8 and the degree of f(x) is 4.

Guest Jan 9, 2022

0

398

5

Interest

Dr. Zaius invests $10,000 in a CD with an annual interest rate of 4% that compounds semi-annually (twice a year). After six months, he rolls over the CD into another CD with an annual interest rate of 5% that compounds annually. After six months read more ..

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Guest Jan 9, 2022

0

238

0

Piecewise function

Let
f(x) = 4x + 1 if x <=3
f(x) = 18 - 4x if x > 3
Find the sum of all values of x such that f(x) = 0. read more ..

Guest Jan 9, 2022

0

372

2

Counting

What is the greatest number of points of intersection that can occur when 2 different circles and 3 different straight lines are drawn on the same piece of paper?

Guest Jan 9, 2022

0

422

1

Algebra

Find an ordered pair of constants (a,b) such that the polynomial f(x)=x^3+ax^2+(b-2)x+1 is divisible by x^2 - 1.

Guest Jan 9, 2022

+1

365

2

Piecewise function

Let
f(x) = ax + 3 if x > 0
f(x) = ab if x = 0
f(x) = bx + c if x < 0 read more ..

Guest Jan 9, 2022

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