Raymond B.

I tried to work the problem out myself and have gotten this:y=ax^2+bx+c (-2, 9), 4a-2b+c = 9(-4, 5), 16a-4b+c = 5(1, 0), a+b+c = 0 Then, 4a-2b+c = 9a +b+c = 016a-4b+c = 5a+b+c = 0 3a – b = 915a- 4b... more

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Mathematics

11/19/20

Find an equation of the parabola in standard form passing through the points: (-2, 9), (-4, 5), (1, 0)

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Algebra Functions

11/19/20

question about functions

If f(4)=10, how do I write the function for it?

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Precalculus Pre Calculus Pre Calculus

11/19/20

Simplify without a calculator: 1−2sin^2(15°)

Simplify without a calculator: 1 - 2sin2(15°)

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7th Math

11/19/20

math algebra woo

the product of -5 and a number is at least -40

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Algebra 1 Algebra

11/19/20

Which equation represents the line that passes through (2, 4) and is perpendicular to the graph of y= 1/3 x-1?

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Precalculus Pre Calculus Pre Calculus

11/19/20

Simplify without a calculator: 2 sin(22.5∘) cos(22.5∘)

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Precalculus Pre Calculus Pre Calculus

11/19/20

If csc ( x ) = 13/12 (in Quadrant-I), find sin ( 2 x ) =

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Algebra 1 Algebra

11/19/20

What is the equation in slope-intercept form of the line that passes through the point (2, -2) and is perpendicular to the line represented by y = 2/5 + 2?

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College Algebra

11/19/20

college algebra word problem

A cell phone factory has a cost of production C(x) = 150x + 40,000 and a revenue function R(x) = 400x. What is the break-even point?

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College Algebra

11/19/20

college algebra word problem

Use a system of linear equations with two variables and two equations to solve.If an investor invests a total of $40,000 into two bonds, one that pays 4% simple interest, and the other that pays 3... more

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College Algebra

11/19/20

college algebra word problem

A plane traveling with the wind travels 700 miles in 5 hours. The return trip is against the wind and takes 7 hours. Find the rate of the plane in still air and the rate of the wind.

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College Algebra

11/19/20

college algebra word problem

In one day, a book store earned $239 in sales for 4 copies of a new cookbook and 5 copies of a new science fiction novel. On the next day, it earned $182 in sales for 3 copies of the cookbook and 4... more

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College Algebra

11/19/20

college algebra word problem

Two angles are supplementary. The measure of one angle is 42° more than twice the measure of the other angle. Find the measure of each angle. (Enter your answers as a comma-separated list. Use the... more

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Mathematics

11/19/20

if the perimeter of a rectangle is 60, which equation could be used to find the width of the rectangle for any length?

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Pre Calculus

11/19/20

What function expresses the volume of the box in terms of the side of the squares cut out?

A 5-sided, open topped box is to be formed from a rectangular piece of cardboard that is 28 inches by 15 inches. Congruent squares are to be cut from each corner and the resulting flaps will be... more

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Word Problems

11/19/20

the ratio of the weight of an object on planet A to the weight of the same object on planet B is 100 to 3. if an elephant weighs 3800 pounds on planet A find the elephants weight on planet B

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Help me with my math problem please and explain it online school got me stressing out a lot and I cannot understand it when my teacher is teaching me it

1- Utilizing and citing past Philosophers, argue against or for pantheism. (1 paragraph)

If a person's systolic pressure is 123.6 mm Hg, what is their age (rounded to the nearest whole year)?