All Questions

258

Digits

What is the tens digit of 7^{20183}

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Guest Jul 20, 2022

266

Assistance needed please!

Let $f(x)=x2^x$. Find all values of $x$ such that $f(x)=2f'(x)$.

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Guest Jul 20, 2022

255

Help Please!

The tangent line to the graph of $y=g(x)$ at $x=4$ has equation $y=-3x+11$. What is the equation of the tangent line to the graph of $y=g(x)^3$ at $x=4$? Enter your answer in the form $y=mx+b$.

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Guest Jul 20, 2022

267

Help please!

Let $f(x)=x^x$. The derivative $f'(x)$ can be written as the product $f(x)g(x)$ for a certain function $g(x)$. Find $g(x)$.

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Guest Jul 20, 2022

259

number theory

Find the remainder of 5^400 when divided by 18.

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Guest Jul 20, 2022

325

+78

Solve the inequality $2x - 5 \le -x +12$. Give your answer as an interval.

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ILikeSushi Jul 20, 2022

-1

318

+30

A horse 64 feet from the center of a merry-go-round makes 27 revolutions. In order to travel the same distance, how many revolutions would a

A horse 64 feet from the center of a merry-go-round makes 27 revolutions. In order to travel the same distance, how many revolutions would a horse 16 feet from the center have to make?

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Gordn Jul 20, 2022

306

how do i do this problem? i know how to do y=mx+b but not this

The equation of the line passing through $(1,11)$ and $(4,5)$ can be expressed in the form \[\frac{x}{a} + \frac{y}{b} = 1.\]Find $a$.

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Guest Jul 20, 2022

217

quadratic

A creature on the moon throws a rock off a cliff. The height of the rock above the surface of the moon, in meters, t seconds after it is thrown is given by h(t) = −t ^2 + 8t + 10. When does the rock first reach a height of 12 m?

Guest Jul 20, 2022

206

Primes

How many positive integers strictly less than 110 can be written as the sum of 3 primes?

Guest Jul 20, 2022

248

Find a linear inequality with the following solution set. Each grid line represents one unit. [asy] size(200); fill((-2,-5)--(5,-5)--(5,5)-

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Guest Jul 20, 2022

245

Algebra

How many positive integers t will make the expression 19/t + 5/t + 5/t have an integral value?

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Guest Jul 20, 2022

297

+275

Very confused

How many five-digit positive integers can be written using only the digits 1,2 and 3 and do not have two consecutive digits which are both 3 's? (For example, 32322 satisfies these conditions, while 33132 does not.)

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Jasonkiln Jul 20, 2022

203

Algebra

Let a, b, and c be the roots of 24x^3 - 121x^2 + 87x - 8 = 0. Find log_2 (a + b + c).

Guest Jul 20, 2022

295

Help

Angela, Caleb, Daniel and Eliza have $844 altogether. Caleb has $32 more than Angela and Daniel has 5/6 the amount Eliza has. After Angela gives $4 to Caleb, he will have 1 1/2 the amount of money Daniel has. How much money does read more ..

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Guest Jul 20, 2022

195

Area

A baseball diamond is a square with 80-foot sides. An acre of land is a region containing 43,560 square feet. What percent of an acre is enclosed within a baseball diamond? Express your answer as a decimal to the nearest tenth.

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Guest Jul 20, 2022

405

Ari draws twelve circles of diameter 2 inches that all pass through the same point, so that the angles formed by the diameters of any two co

Ari draws twelve circles of diameter 2 inches that all pass through the same point, so that the angles formed by the diameters of any two consecutive circles are congruent, as in the image shown. What is the distance between point A and point B in inches? read more ..

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Guest Jul 20, 2022

289

geometry

The figure shows circle O with diameter AB and inscribed angle ABC with AB = 8 and BC = 4. When the area of the shaded region, in square units, is expressed in the form a + bπ, what is the value of ab?

read more ..

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Guest Jul 20, 2022

290

trig question

In triangle XYZ, we have angle X = 90 and tan Y = 3/2. If YZ = 80, then what is XY?

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Guest Jul 20, 2022

290

need help

J. S. Bach’s Prelude No. 2 in C Minor consists of 144 measures with each measure containing 12 notes. In a typical performance, 560 notes are played every minute. How many seconds does it take to perform the entire Prelude? Express your answer read more ..

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Guest Jul 20, 2022

277

stats

This histogram shows the numbers of students who received each score on a 20-point quiz. What was the mean quiz score? Express your answer as a decimal to the nearest tenth.

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Guest Jul 20, 2022

-1

274

Multiplication problem

Alec multiplied five of the six numbers 1, 4, 6, 9, 15 and 17 and obtained a product of 6120. Which of these six numbers was not included in the numbers he multiplied?

MathBreathing ●

Guest Jul 20, 2022

302

Functions

The graph of y = f(x) is shown in red below. For how many values of c is f(c) = -1?

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Guest Jul 20, 2022

281

system

If 3m+4n=47, and m+n=15-2m, what is m?

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Guest Jul 20, 2022

All Questions ⁺⁰237785 Questions

Digits

Assistance needed please!

Help Please!

Help please!

number theory

Solve the inequality $2x - 5 \le -x +12$. Give your answer as an interval.

A horse 64 feet from the center of a merry-go-round makes 27 revolutions. In order to travel the same distance, how many revolutions would a

how do i do this problem? i know how to do y=mx+b but not this

quadratic

Primes

Find a linear inequality with the following solution set. Each grid line represents one unit. [asy] size(200); fill((-2,-5)--(5,-5)--(5,5)-

Algebra

Very confused

Algebra

Help

Area

Ari draws twelve circles of diameter 2 inches that all pass through the same point, so that the angles formed by the diameters of any two co

geometry

trig question

need help

stats

Multiplication problem

Functions

system

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