All Questions ⁺⁰237785 Questions

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291

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Fractions

Fill in the blank to make the equation true.

8/125*__ = 5/2.

Guest Jul 23, 2022

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284

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help system

Suppose that j = 4, a = j + 7 and z = a + 5. What is the value of jaz^2?

Guest Jul 23, 2022

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278

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Decimals

if 0.9 \overline{7} is written as a common fraction a/b, what is the value of a - b?

Guest Jul 23, 2022

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294

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Algebra

What is the arithmetic mean of the first 2021 odd positive integers?

Guest Jul 23, 2022

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275

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Inequalities

If 17/5 < x < 1/5 + 17, what is the sum of all possible integer values of x?

Guest Jul 23, 2022

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289

1

trig question

In the diagram below, we have AB = 24 and angle ADB = 90. If sin A = 3/4 and sin C = 1/4, then what is DC?

read more ..

Guest Jul 23, 2022

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271

1

Algebra

Kathy bikes 9 miles on Monday. Each subsequent day she bikes 12% more than she did the previous day. By the end of the day on Friday, how many total miles has Kathy biked? Express your answer to the nearest whole number.

Guest Jul 23, 2022

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253

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number theory

What is the remainder when 2^{21} is divided by 19?

Guest Jul 23, 2022

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239

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geometry

Parallel lines m and n intersect lines k and l as shown. If the indicated angles have measures 43°, 105° and x°, what is the value of x?

Guest Jul 23, 2022

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296

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system

If sqrt(x) + sqrt(y) = 13 and 4x + 9y = 793, what is the value of x?

Guest Jul 23, 2022

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278

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divisors

What is the least positive integer that divides 18 but does not divide 16?

Guest Jul 23, 2022

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273

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counting problem

How many positive three-digit integers are divisible by both 11 and 6?

Guest Jul 23, 2022

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189

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counting problem

How many positive three-digit integers are divisible by both 11 and 6?

Guest Jul 23, 2022

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276

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clock problem

What is the number of degrees in the measure of the smaller obtuse angle formed by the hands of a standard clock at 12:48 pm?

Guest Jul 23, 2022

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302

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Cylinders

What is the radius, in inches, of a right circular cylinder if its lateral surface area is 3.5 square inches and its volume is 5 cubic inches?

Guest Jul 23, 2022

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256

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Square roots

Simplify sqrt(3*324000)

Guest Jul 23, 2022

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291

1

Square Roots

Simplify sqrt(27)*sqrt(12)*sqrt(300).

Guest Jul 23, 2022

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273

1

Square roots

Simplify sqrt(2)*sqrt(6)*sqrt(110)*sqrt(156).

Guest Jul 23, 2022

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280

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Function

Let
f(x) = 3^x if x >= 3
f(x) = 3/x if x < 3
Find f(2) + f(3) + f(4). read more ..

Guest Jul 23, 2022

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279

1

Function

Let
f(x) = -2x - 3 if x < 0
f(x) = x/2 + 3 if x >= 0
Find the range of f(x). Enter your answer in interval notation. read more ..

Guest Jul 23, 2022

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297

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Graphing

Find the area of the region that lies below the graph of y = 3 - |x - 1| + 5 but above the x-axis.

Guest Jul 23, 2022

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279

1

Function

For an integer n, let
f(n) = n/2 + 1 if n is even
f(n) = 3n - 1 if n is odd
read more ..

Guest Jul 23, 2022

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302

1

Exponents

Find all values of c such that 3^(2c+1) = 28*3^c.
If you find more than 1 value of c, then list your values in increasing order, separated by commas.

Guest Jul 23, 2022

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305

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Range

What is the range of the function f(x) = 3 - 2*51*x?
Give your answer as an interval.

Guest Jul 23, 2022

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371

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Help

In a neighborhood donut shop, One type of donut has 490 calories, Three types of donuts have 520 calories, Three types of donuts have 360 calories, five types of donuts have 350 calories, and four types of donuts have 390 calories.
Find the read more ..

Guest Jul 23, 2022

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