Keith S.

09/11/20

Find EF if E is the midpoint of DF, DE = 15-3x and EF = x+3

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08/28/20

Find his distance from the pole.

A man is standing on the top of a hill and sees a flagpole he knows is 45 feet high. The angle of depression to the bottom of the pole is 12 degrees, and the angle of elevation to the top of the... more

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Physical Science

08/28/20

Manuel and Daniel are playing catch with a football.

Manuel and Daniel are playing catch with a football. They are standing 30 meters apart. Manuel throws the ball to Daniel, and it takes 3 seconds for the ball to reach Daniel. How fast is the ball... more

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Physical Science

08/28/20

A train moves at 300 km/h. How far will it go in 5 hours?

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Algebra 2

08/28/20

Systems of equations

What is the solution for z in the following system of equations?5x+2y-3z=172x+2y+z=53x+2y=-6

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Answers •3

Algebra 1 Algebra

08/27/20

two angles are complementary. one angle measures 20 degrees more than the other angle. find the measure of the larger angle.

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Algebra 2

08/27/20

f f(x) = x2 + 1 and g(x) = x – 4, which value is equivalent to (f circle g) (10)?

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Answers •4

Prealgebra

08/27/20

A rectangular prism has a length of 3/4 inch and a width of 1/2 inch. The volume of the prism is 21/32 cubic inch. Find the height of the prism. Write the answer as a mixed number in simplest form.

Sorry for the long question! That's how the question is I guess. Anyways, any help would always be appreciated! :D

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Geometry

08/27/20

Volumes of Prisms and Cylinders

You are painting a room in your house. Unfortunately, you lost the lid to the 5 gallon bucket of paint, but you only used half of the paint. You want to save the paint, so you plan on transferring... more

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Math Calculus Functions

08/27/20

Calculus 1 confusing me

Fill in the blank with "all", "no", or "some" to make the following statements true.Note: if answer is "all", explain why.if your answer is "no", give an example and explainif your answer is... more

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Prealgebra

08/27/20

A 26-inch piece of steel is cut into three pieces so that the second piece is twice as long as the first piece, and the third piece is two inches more than five times the length of the first piece.

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Algebra 1

08/26/20

The perimeter of a rectangular parking lot is 284 m. If the width of the parking lot is 64 m, what is it’s length

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Calculus

08/26/20

The line tangent to the graph of the twice-differentiable function f at the point x=3 is used to approximate the value of f(3.25).

Which of the following statements guarantees that the tangent line approximation at x=3.25 is an underestimate of f(3.25)?A. The function f is decreasing on the interval 3 ≤ x ≤ 3.25B. The... more

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Algebra 2

08/26/20

Farmer has docks and cows. Has 20 heads and 36 feet. How many ducks and cows does the farmer have

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Algebra 1

08/26/20

You have been offered two different jobs. Job A would pay you $12 an hour but a bonus at the end of the month of $100. Job B would pay you $16 an hour but would have no bonus offered.

a) Write an equation that represents the pay for each job offer.b) Graph the system of equations by hand on a coordinate grid. C)Circle the intersection points and... more

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Math Statistics Probability

08/26/20

1. A PIN number for a bank card consists of 4-6 digits, with no restrictions. How many such PIN numbers are possible? (Repetition is allowed and 0 is allowed in first position)

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Calculus

08/25/20

A weight suspended by a spring vibrates vertically according to the function D given by D(t)=2sin(4π(t+1/8))

D(t) represents, in centimeters, the directed distance of the weight from its central position t seconds after the start of the motion. Assume the positive direction is upward. What is the... more

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Calculus

08/25/20