Raymond B.

07/15/21

Consider an unfair coin that turns up heads one-fourth of the time. I toss the coin three times

Consider an unfair coin that turns up heads one-fourth of the time. I toss the coin three timesand let X equal the number of heads. Find the probability distribution of X and then find its mean and... more

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Algebra

07/15/21

a train traveled 421 miles in 5.5 hours. what was the trains speed in mile per hours

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Algebra

07/15/21

Polynomial Question

For a certain company, the cost for producing x items is 60x+300 and the revenue for selling x items is 100x−0.5x2. The profit that the company makes is how much it takes in (revenue) minus how... more

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Geometry

07/14/21

The radius of a circle is 8 feet. What is the length of a 135° arc?

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Linear Algebra Algebra

07/14/21

find a vector a that has the same direction as <-8,9,8> but has a length of 3

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Math

07/14/21

Math I need help plsss

How much 8% saline saline solution lent mix with 80 cubic centimeters (cc) of a 16% saline to produce a 13% saline solution ??

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Math

07/14/21

Math I need help plsss

How much 8% saline saline solution lent mix with 80 cubic centimeters (cc) of a 16% saline to produce a 13% saline solution ??

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Algebra 1 Linear Algebra Linear Equations

07/14/21

Find all x for this equation 2cosx-3=-5, 0<_x<_2π

The range is 0 is less than equal x and x is less than equal 2π.Solve this according to the rules of unit circle.

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Calculus

07/14/21

The distance s (in m) above the ground for a projectile fired vertically upward with a velocity of 4[a] m/s as a function of time t (in s ) is given bys=4[a]t−4.9t2 .

The distance s (in ) above the ground for a projectile fired vertically upward with a velocity of 4 as a function of time t (in ) is given by s =4(a)t-4.9t^2 Do not multiply. For example, if a=1... more

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Calculus

07/14/21

Find an equation of the line

Find an equation of the line that has slope −8 and passes through the midpoint of the line segment joining the points P1(−6, −4) and P2(11, 14). (Let x be the independent variable and y be the... more

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Calculus

07/14/21

Find an equation

Find an equation of the line that passes through the point (−2, 2) and is parallel to the line 2x − 4y − 8 = 0.

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Math Algebra

07/14/21

Find the equation of a line parallel to y = -3x + 2 and goes through the point (-4, 2).

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Statistics

07/14/21

1. What percentage of the widget weights lie between 47 and 87 ounces? % c) What percentage of the widget weights lie above 55 ?

question 1 details: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 63 ounces and a standard deviation of 8... more

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Word Problems Quadratic Equation

07/14/21

I NEED HELP PLEASEE❤️❤️❤️

A rectangular supermarket, 90 m. by 60 m, is to be built on a city block having an area of 15 400 square metres. There is to be a uniform strip around the building for parking. How wide is the... more

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Word Problem Quadratic Equation

07/14/21

help needed urgently

The height in metres, h, after t seconds of a bullet fired from a gun is given by . Determine the maximum height. How long before the bullet hits the ground?

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Pre Calculus

07/13/21

If tan ( x ) = 29 /2 (in Quadrant-I), find sin ( 2 x ) =

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Mathematics

07/13/21

Each baseball hat costs the same amount of money. The cost for 18 baseball hats was $216. What is the unit price?

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Algebra 1

07/13/21

Urgent Algebra Age Question

Abigail will not reveal her age but says she is 3 years younger than his sister Kate. Ninety years ago, Kate was twice as old. How old is each now?

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Algebra 1

07/13/21

For a given input value a, the function h outputs a value b to satisfy the following equation: 3a−5=−4b+1.Write a formula for h(a) in terms of a.

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Math Precalculus

07/13/21

pls help with this question

The sum of two integers is –5. When 10 times the larger number is subtracted from the square of the smaller number, the result is 34. Find the system of equations that could be used to determine... more

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Math Functions

07/13/21