All Questions ⁺⁰237796 Questions

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401

1

Geometry

Circle O is tangent to AB at A, and angle ABD = 90 degrees. If AB = 12 and CD = 16, find the radius of the circle.

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Guest Aug 1, 2021

0

322

2

Geometry

Two circles intersect at A and B. A common external tangent is tangent to the circles at T and U as shown. Let M be the intersection of line AB and TU. If AB = 9 and BM = 5 find TU.

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Guest Aug 1, 2021

0

419

3

geometry

From a circular piece of paper with radius BC , Jeff removes the unshaded sector shown. Using the larger shaded sector, he joins edge BC to edge BA (without overlap) to form a cone of radius 18 centimeters and of volume 432*pi cubic centimeters. What is read more ..

Guest Aug 1, 2021

0

421

1

Polygon

How many sides would there be in a convex polygon if the sum of all but one of its interior angles is 1970 degrees?

Guest Aug 1, 2021

0

281

0

Precalc

ABCD is a regular tetrahedron (right triangular pyramid). If M is the midpoint of CD and N is the midpoint of AB, then what is cos AMN?

Guest Aug 1, 2021

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372

2

plz help :D

Find the number of unordered pairs (a, b) of two-digit positive integers with their product equal to a multiple of 3.

Guest Aug 1, 2021

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424

1

Solving Exponential Problems

given 4*10^(2-x)=3*e^(2x+3) what would be the value of x??

Guest Aug 1, 2021

0

405

1

Algebra

Given (14x+22)/(2x+18)=3x+1, compute the sum of all the possible values of x.
Express your answer as a fraction.

Guest Aug 1, 2021

+2

811

2

+50

Binomial Probability

Four packages are delivered to four houses, one to each house. If these packages are randomly delivered, what is the probability that exactly two of them are delivered to the correct houses? Express your answer as a common fraction. i tried C(4,2) times read more ..

HELPplzplzplz Aug 1, 2021

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340

1

Help Please

The smallest distance between the origin and a point on the graph of $y=\frac{1}{2}x^2-9$ can be expressed as $a$. Find $a^2$.

Guest Aug 1, 2021

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393

1

help geometry

In the diagram below, BE = EC = DF and ADF has the same area as DEF If rectangle DXYF has area 40, what is the area of DEF?

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Guest Aug 1, 2021

0

501

1

+526

Repost

I posted this question 3 days ago, I really need help with this question can anyone help? Please answer at the original link.
https://web2.0calc.com/questions/can-t-seem-to-figure-this-algebra

P.S. Ping me here if you read more ..

amygdaleon305 Aug 1, 2021

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388

1

Geometry

A triangle whose side lengths are whole numbers has one side which measures 25 inches and a perimeter of 60 inches. What is the fewest number of inches that can be the length of one of the remaining sides?

Guest Aug 1, 2021

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284

0

help counting

Mable has a penny, a nickel, a dime, and a quarter, and a half-dollar (1, 5, 10, and 25 and 50 cents, respectively).How many different amounts can Mable make using at least one of the coins she has?

Guest Aug 1, 2021

+1

409

1

+103

Remainder Concept

In ABC Bookstore, 40% of the books are non-fiction books. 70% of the remainder are fiction books and the rest are Assesment books. There are 30 more fiction books than non-fiction books. After some non-fiction books are sold, 25% of the remaining books read more ..

Robtlukas Aug 1, 2021

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267

0

percentage

The terms of payment are 30 days net cash, with payment within 10 days 2% discount. Which annual interest rate corresponds to a 2% discount?

Guest Aug 1, 2021

+1

476

2

+80

FRACTIONS

In a class, 1/4 of the pupils and an additional 3 pupils like dancing. 1/3 of the remaining class less 3 pupils like swimming. The remaining 21 pupils in the class like jogging. How many pupils are there in the class?

DoctorOcopisMonOct Aug 1, 2021

0

400

1

help geometry

As shown in the digram, PQ/QR =1/3 and AB/BR = 2/7. Find [PAB]/[PBR].

Guest Aug 1, 2021

0

425

1

how do you find the coefficient?

how do you find the coefficient?

Guest Aug 1, 2021

0

285

0

halppppp

Let m and n be positive integers such that m has exactly 5 positive divisors, n has exactly 6 positive divisors, and mn has exactly 14 positive divisors.
How many distinct prime factors does mn have?

Guest Aug 1, 2021

0

334

1

plz help

Segments CD and AB are parallel. If CD = 2, AB = 4, and [CDP] = 5, find [ABCD].

Guest Aug 1, 2021

0

465

4

erm ;-; help please geo

i have tried so many times on this problem:

Let $G$ be the center of equilateral triangle $XYZ.$ A dilation centered at $G$ with scale factor $-\frac{4}{3}$ is applied to triangle $XYZ,$ to obtain triangle $X'Y'Z'.$ Let $A$ be the read more ..

Guest Aug 1, 2021

0

302

1

two-digit numbers

How many two-digit numbers have non-zero digits whose sum is prime?

Guest Aug 1, 2021

0

321

1

help geometry

In the figure shown, ABCD is a square and CDE is equilateral. What is the degree measure of CBE?

Guest Aug 1, 2021

Jul 31, 2021

0

334

1

logarithms

Find the sum of all values of x such that log_3 (x - 1) = -1.

Guest Jul 31, 2021

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