probability question

In a new California lottery game, contestants pick 5 numbers (1-9 inclusive) and must guess exactly three correct in order to win. What’s the probability of winning this lottery?

05/20/20

Converting a table into a system of three equations

The route of a train travelling from station A to station D passes through Station B then station C. The table below gives the time (in hours) the trip will take if the given speeds (km/h) are... more

05/20/20

Use the graph of f(t) = 2t + 1 on the interval [–1, 4] to write the function F(x), where f of x equals the integral from 2 to x of f of t dt.

Use the graph of f(t) = 2t + 1 on the interval [–1, 4] to write the function F(x), where . F(x) = x2 + 3x F(x) = 2x + 1 F(x) = x2 + x – 20 F(x) = x2 + x – 6

05/20/20

Which of the following functions grows the fastest as x grows without bound?

Which of the following functions grows the fastest as x grows without bound? f(x) = ex g(x) = ecosx h(x) =  They all grow at the same rate.

05/20/20

Compare the growth rate of the functions f(x) = log4(x) and g(x) = 4x.

Compare the growth rate of the functions f(x) = log4(x) and g(x) = 4x. f(x) grows faster than g(x). g(x) grows faster than f(x). f(x) and g(x) grow at the same rate. It cannot be determined.

05/20/20

Find the range of the function f of x equals the integral from negative 6 to x of the square root of the quantity 36 minus t squared dt.

Find the range of the function . [–6, 0] [0, 6] [0, 9π] [0, 18π]

05/19/20

Solve algebraically y=x2 +x−7 y = x + 2

Solve algebraically y=x2 +x−7 y = x + 2

05/19/20

probability algebra question

A bag contains 7 red marbles, 8 blue marbles and 5 green marbles. If three marbles are drawn out of the bag, what is the probability, to the nearest 10th of a percent, that all three marbles drawn... more

05/17/20

Solve the differential equation Assume a is a non-zero constant, and use C for any constant of integration that you may have in your answer.

Solve the differential equationdR/dx = a(R^2+16)Assume a is a non-zero constant, and use C for any constant of integration that you may have in your answer.R=________

05/16/20

If r = 16 in., find the length of an arc of the inscribed...

(b) regular triangle: in. (c) regular quadrilateral: in. (d) regular octagon

05/15/20

Solve the differential equation y prime equals the product of 6 times x and the square root of the quantity 1 minus y squared.

Solve the differential equation . Explain why the initial value problem  with y(0) = 2 does not have a solution.

05/15/20

Three more than twice the difference of a number and seven is nine?

kinda stuck on this one what is it?

05/15/20

Solve the differential equation dy dx equals the quotient of y squared and x cubed for y = f(x) with the condition y(1) = 1.

Solve the differential equation  for y = f(x) with the condition y(1) = 1.

05/15/20

The slope of the tangent to a curve at any point (x, y) on the curve is negative 1 times x divided by y. Find the equation of the curve if the point (3, −4) is on the curve.

The slope of the tangent to a curve at any point (x, y) on the curve is . Find the equation of the curve if the point (3, −4) is on the curve. x + y = −1 x2 + y2 = 5 x2 + y2 = 25 x2 − y2 = −7

05/15/20

Let f(x)=p+9/(x-q), for x≠q.

Let f(x)=p+9/(x-q), for x≠q. The line x=3 is a vertical asymptote to the graph of f.The graph of f has a y-intercept at (0,4).Write down the values of q,p and the equation of the horizontal... more

05/14/20

Is (-7, 7) a solution to y = -x?

Math Question - Urgent. #37

Tickets for the local baseball game were $15 for general admission and $8 for children. There were 20 times as many general admission tickets sold as there were children's tickets. Total receipts... more

Trig Problem (pls help me ASAP)

A ship travels at 30 knots from its home port on a course of 97 degree for 2 hours and then changes to a course of 187 degree for 2 hours. Find the distance and bearing of the home port to the ship.

05/13/20

How many gallons should be mixed?

A 20​% solution of fertilizer is to be mixed with a 70​% solution of fertilizer in order to get 100 gallons of a 60​% solution. How many gallons of the 20​% solution and 70​% solution should... more

ive tried 127, 4 and 19.72 and they were wrong... i need help :(

In triangle , point  is on side  such that    and the circumcircles of triangles  and  have the same radius. Find the area of triangle .

hi! i drew a diagram but then got very lost from ther... could i get help?

In triangle  the side lengths are   and  Let  be the intersection of the angle bisector of  with side , and let  be the foot of the perpendicular from  to side . Compute the length of .

A circle is centered at O and has an area of 48/pi Let Q and R be points on the circle, (ran out of space look at description)

and let P be the circumcenter of triangle QRO. If P is contained in triangle QRO, and triangle PQR is equilateral, then find the area of triangle PQR.i tried drawing it out and looking at the... more

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