All Questions ⁺⁰238211 Questions

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943

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I need help with Probability

can i please get help on how to work this out

petri Nov 21, 2018

-1

648

3

+4116

Help

CoolStuffYT ●●●

NotSoSmart Nov 21, 2018

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1384

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need help

A 7-foot tall stop sign creates a shadow that is 2 feet long. At the same time, a utility pole creates a shadow that is 11 feet long. How tall, in feet, is the utility pole?

off-topic

Guest Nov 21, 2018

-1

844

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+4116

Help

NotSoSmart Nov 21, 2018

-1

678

5

+4116

Help with this one CPhill

Help with this one CPhill

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NotSoSmart Nov 21, 2018

0

863

1

+4

Several years ago, the reported mean age of an inmate on death row was

Several years ago, the reported mean age of an inmate on death row was
38.7 years. A sociologist wondered whether the mean age of a death-row inmate has changed since then.
He randomly selects 37 death-row read more ..

sharonnact12 Nov 21, 2018

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928

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+193

Algebra

Evaluate the expression for the given value of the variable.
| b| + b³ ; b = –2

Littlegirlblue Nov 21, 2018

-1

721

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+4116

Help

NotSoSmart Nov 21, 2018

-1

629

1

+4116

Help

NotSoSmart Nov 21, 2018

-1

654

1

+4116

Help

NotSoSmart Nov 21, 2018

0

745

1

+845

proof by induction (divisibility)

please explain each step

YEEEEEET Nov 21, 2018

+5

2114

3

+87

Geometry help plz!

In convex quadrilateral abcd,ab=bc=13 , cd=da=24, and . Points X andY are the midpoints of and respectively. Compute XY^2 (the square of the length of XY).

thunderkirby Nov 21, 2018

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2294

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+1246

Help!

In the figure, ABCD is a rectangle, AZ=WC=6 units, AB=12 units and the area of trapezoid ZWCD is 120 square units. What is the area of triangle BQW?

read more ..

Lightning Nov 21, 2018

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859

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+32

please help me

A new convenience store wishes to attract customers. For a one-day special, the store sells gasoline for $.25 per gallon below its regular cost per gallon. Suppose the store sells 5,750 gallons of gas that day. What is the store's profit or loss in read more ..

Shayna0524 Nov 21, 2018

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954

1

trig question

In right triangle $ABC$ with $\angle B = 90^\circ$, we have $\sin A = 2\cos A$. What is $\tan A$?

Guest Nov 21, 2018

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2562

3

polygons question

A regular hexagon is truncated to form a regular dodecagon (12-gon) by removing identical isosceles triangles from its six corners. What percent of the area of the original hexagon was removed? Express your answer to the nearest tenth.

Guest Nov 21, 2018

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626

2

Please Help Me Answer this Question.

Please Help Me Answer this Question.
Step by Step.
((sqrt(7+sqrt(24)))/(2) + (sqrt(7-sqrt(24)))/(2))^2

Guest Nov 21, 2018

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1065

1

best fit model?

Annual consumption of bottled water in the United States is given in the table.
Let C(t) be the billions of gallons consumed t years since 1990.

Year Bottled water consumption (billions of read more ..

Guest Nov 21, 2018

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1532

2

+37

Geo help

Let C be a point not on line AE and D a point on line AE such that CD is perpendicular to AE Meanwhile, B is a point on line CE such that AB is perpendicular to CE.If AB=4, CD=8 and AE=5 then what is the length of CE

bambam89 Nov 21, 2018

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987

1

Momentum

A gun of mass 1000kg, free to recoil in the direction of the horizontal barrel, fires a shot of mass 100kg with a velocity off 400ms. Find the speed of recoil of the gun. If the recoil is resisted by a constant force so that the gun moves back only 12cm, read more ..

Guest Nov 21, 2018

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1899

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+4

Given the equation y=4x-3 , answer the following questions.

a) If x increases by 1 unit, what is the corresponding change in y?
b) If x decreases by 2 units, what is the corresponding change in y?

Dixie Nov 21, 2018

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851

1

How many 4-digit numbers higher than 4000 can be formed by using the digits 2, 3, 4, 5 and 6 without repetition?

Pretty simple question.
How many 4-digit numbers higher than 4000 can be formed by using the digits 2, 3, 4, 5 and 6 without repetition?

Guest Nov 21, 2018

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