All Questions ⁺⁰230469 Questions

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517

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can anybody do chem

can you do chemistry?

off-topic

Guest Nov 2, 2019

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718

3

+25

TNX

elafargoshi Nov 2, 2019

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1961

3

+14

Help Please Thanks :))

1) Expressing your answer in interval notation, find all values of k such that the parabola y=x^2 + kx + 11 does not intersect the line y=2.
2) Expressing your answer in interval notation, find all values of s such that x(x-2)^2(x+1)<0. read more ..

onetwothree Nov 2, 2019

+1

716

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+9

help

Given the set {1,2,3,5,8,13,21,34}, which integers between 30 and 50 cannot be written as a number from the set on its own, or as the sum of either two or three numbers from the given set

weebdestroyer Nov 2, 2019

0

1398

2

Help ASAP plz

The diagram is not drawn to scale, but the measurements of the line segments and the right angles are correctly labeled. As shown in the diagram, $BE = EC.$ Are the red and blue triangles similar? If so, enter the name of the side of the blue triangle that read more ..

Guest Nov 2, 2019

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1130

2

help

Of the final five contestants in a television show, three are female and two are male. If two are chosen randomly to be the final contestants, what is the probability that both are female? Express your answer as a common fraction.

Guest Nov 2, 2019

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861

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help

What number, when added to the numerator and to the denominator of 5/8 , results in a fraction whose value is 0.4?

ElectricPavlov ●

Guest Nov 2, 2019

Nov 1, 2019

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578

1

help

Coin A is tossed three times and coin B is tossed two times. What is the probability that more heads are tossed using coin A than using coin B? Express your answer as a common fraction.

Guest Nov 1, 2019

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572

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Question

Point is on such that . We know What is ?

read more ..

Guest Nov 1, 2019

+1

1401

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+586

number theory

1. How many three digit numbers are there such that the digits are non-zero, the tens digit is a multiple of the hundreds digit, the units digit is a multiple of the tens digit, and none of the digits are the same?

2. Find read more ..

xXxTenTacion Nov 1, 2019

+1

1616

1

+586

geometry

The height of a cylindrical pole is 12 feet and its circumference is 2 feet. A rope is attached to a point on the circumference at the bottom of the pole. The rope is then wrapped tightly around the pole four times before it reaches a point on the top directly read more ..

xXxTenTacion Nov 1, 2019

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482

1

Help!ASAP!

Define by . If and is the inverse of the function , find .

Guest Nov 1, 2019

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1

2330

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helpp

Carlos has chosen twelve different compact discs (CDs) he would like to buy. Four are rap music, five are country music, and three are heavy metal music. Carlos then randomly selects five of the 12 CDs to purchase. What is the probability read more ..

Guest Nov 1, 2019

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690

2

help

The set {2, 4, 6, ..., n} contains the positive consecutive even integers from 2 through n. When one of the integers from the set is removed, the average of the remaining integers in the set is 28. What is the least possible value of n ? read more ..

Guest Nov 1, 2019

+1

655

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8^6 / 4+3.7(42.3-24.6)

8^6 / 4+3.7(42.3-24.6)

Guest Nov 1, 2019

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662

1

Pls Help

Point $X$ is on $\overline{AC}$ such that $AX = 4\cdot CX = 12$. We know $\angle ABC = \angle BXA = 90^\circ.$ What is $BX$? [asy] size(5cm); pair A,B,C,X; A = (0,0); X = (12,0); C = (16,0); B = (12,sqrt(48)); draw(X--B--A--C--B); draw(rightanglemark(A,B,C,20));read more ..

Guest Nov 1, 2019

+2

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1302

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+447

this is a HARD riddle

I have a calculator that can display ten digits. How many different ten-digit numbers can I type using just the 0-9 keys once each, and moving from one keypress to the next using the knight’s move in chess? (In chess, the knight move in an L-shape – one read more ..

off-topic

SVS2652 Nov 1, 2019

+2

1504

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+447

ANOTHER RIDDLE!

My twin lives at the reverse of my house number. The difference between our house numbers ends in two. What are the lowest possible numbers of our house?

off-topic

SVS2652 Nov 1, 2019

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960

1

help

Three consecutive positive prime numbers have a sum that is a multiple of 7. What is the least possible sum?

ElectricPavlov ●

Guest Nov 1, 2019

0

1455

1

help

If one quart of paint is exactly enough for two coats of paint on a 9-foot by 10-foot wall, how many quarts of paint are needed to apply one coat of paint to a 10-foot by 12-foot wall? Express your answer as a common fraction.

ElectricPavlov ●

Guest Nov 1, 2019

+1

640

1

+25

TNX

ElectricPavlov ●

elafargoshi Nov 1, 2019

0

1066

1

help

In a set of four consecutive positive integers, the smallest integer is less than half the largest integer. What is the largest integer that could be in the set?

ElectricPavlov ●

Guest Nov 1, 2019

+1

708

2

+25

help

elafargoshi Nov 1, 2019

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