All Questions ⁺⁰237785 Questions

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718

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The isosceles right triangle ABC has its right angle at B and has area 1. The rays trisecting ABC intersect AC at E and F, where E is closer to A than it is to C. The area of BEF can be written in the form a - b for positive integers a, b, and c such read more ..

Guest Dec 23, 2018

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922

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+166

Help

1. If x is a real number such that 2^(2x+3)=14, find 2^x.

grif389 Dec 23, 2018

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2208

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+166

Urgent

1. The product of two positive integers minus their sum is 39. The integers are relatively prime, and each is less than 20. What is the sum of the two integers?
2. If a is a constant such that 4x^2-12x+a is the square of a binomial, then read more ..

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grif389 Dec 23, 2018

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1228

3

help plz.

Use the Euclidean algorithm to find integers $x$ and $y$ such that $164x + 37y = 1.$ State your answer as a list with $x$ first and $y$ second, separated by a comma.

(I know it is a repost of https://web2.0calc.com/questions/use-the-euclidean-algorithm-to-find-integers-x-and-y-such-that-164x-37y-1-state-your-answer-as-a-list-with-x-first-and-y-seco, read more ..

Guest Dec 23, 2018

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976

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+818

help quick nice

Parallelogram ABCD ahs side lengths 9cm and 13cm. Find the shortest integral length of AC.

tertre ●●●●

mathtoo Dec 23, 2018

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3060

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A job cost the customer $28,244.66. If 41% of this job was labor, what was the actual labor cost to the customer?

A job cost the customer $28,244.66. If 41% of this job was labor, what was the actual labor cost to the customer?

off-topic

Guest Dec 23, 2018

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614

1

Help with complicated geometry problem, please

"A triangle has a ratio of 3:4:5. If its perimeter is 120 m, what is its area in square meters?"

Based on the ratio, the triangle seems scalene. I have computed for the lengths, and they are 30 m, 40 m, and 50 m. However, I am stuck read more ..

Guest Dec 23, 2018

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660

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Pls Help

If a, b, c, and d are replaced by four distinct digits from 1 to 9, inclusive, then what's the largest possible value of the difference a.bc - 0.d?

PartialMathematician ●●

Guest Dec 23, 2018

+2

1507

7

+818

recriprocal

Find the sum of the reciprocals of the roots of x^2-13x+4=0.

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mathtoo Dec 23, 2018

-1

1096

4

+4116

Help 17

Help 17

A target is made of a yellow square inside of a green square. What is the theoretical probability that a dart will hit the green square if the side length of the yellow square is 4, and the side length of the green square read more ..

PartialMathematician ●●●●

NotSoSmart Dec 23, 2018

-1

1600

3

+4116

Help 18

Help 18

Horn lengths of Texas longhorn cattle are normally distributed. The mean horn spread is 60 inches with a standard deviation of 4.5 inches.
Calculate the range of horn lengths for the middle 95% of Texas Longhorn read more ..

NotSoSmart Dec 23, 2018

-1

825

1

+4116

Help 19

NotSoSmart Dec 23, 2018

-1

1241

6

+4116

Help 20

Help 20

John and Ted have a reputation for being late to events. If John is late 20% of the time, and Ted is late 40% of the time, what is the probability that both John and Ted will be on time? Show your work or explain how you got read more ..

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NotSoSmart Dec 23, 2018

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746

2

help please!!!

A positive integer $X$ is 2 more than a multiple of 3. Its units digit is the same as the units digit of a number that is 4 more than a multiple of 5. What is the smallest possible value of $X$?

Guest Dec 23, 2018

Dec 22, 2018

+1

1243

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+4623

Review One

isn't the answer x divided by 2.
Simplify

Pretty nice question. Try to see the pattern! read more ..

tertre Dec 22, 2018

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812

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+315

Algebra 2

https://prnt.sc/ly4rl8

Cupcake Dec 22, 2018

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1038

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+847

Inverse!!!

Find the number of values of x for which
is undefined.

ant101 Dec 22, 2018

0

647

2

Help!!!!

The points (-3,2) and (-2,3) lie on a circle whose center is on the x-axis. What is the radius of the circle?

Pls explain.

Guest Dec 22, 2018

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1481

2

find the slope between the points A(a+b,4m-n) and B(a-b,m+2n)

find the slope between the points A(a+b,4m-n) and B(a-b,m+2n)

if slope = Y2-Y1
X2-X1 read more ..

Guest Dec 22, 2018

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