46m

Please help me understand this physics question!
Professional baseball pitchers deliver pitches that can reach the blazing speed of 100 mph (miles per hour). A local team has drafted an up-and-coming, left-handed pitcher who can consistently... more
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47m

A ball is released from a height of 12 m and weighs 37 N. What is the magnitude | Δ U | of the total change in potential energy when the ball falls to the ground?
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1h

What many ions of Mg are in 50 g of MgCl2?
The answer is 3.16*10^23...But how?
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1h

Two solutions of acid, one is 30% and one is 60%. How much of each solution do you need to mix to create 20 Liters of a new solution that is 42% acid?
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2h

A factory is to be built on a lot measuring 150 ft by 200 ft. A local building code specifies that a lawn of uniform width and equal in area to the factory must surround the factory.
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3h

Two solutions of acid, one is 30% and one is 60%. How much of each solution do you need to mix to create 20 Liters of a new solution that is 42% acid?
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3h

Plane travels 8400 km against the wind in 7 hours. With wind the plane makes the return trip in 6 hours. Find the speed of the plane in still air and the speed of the wind.
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3h

Using the unit circle, create the following:
a) Write a trigonometric equation for which the solutions lie in quadrants I and II. Solve the equation for 0 ≤ θ < 2π.b) Write a trigonometric equation for which the solutions lie in quadrants... more
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4h

One less than three times a number is seven

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4h

What is an equation of the line that passes through the point 4,-6 and has a slooe of -3
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4h

Factor the common factor out of -12+15x
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4h

Factor the common factor out of -12+15x
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4h

How to graph -2x^2-10x+28
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5h

If F(x) = f(g(x)), where f(2) = 7, f '(2) = 6, f '(0) = 4, g(0) = 2, and g'(0) = 7, find F '(0).
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5h

Differentiate y = (r^2 − 6r)e^r
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5h

a rectangle garden is 3 feet longer than it is wide. Its area is 54 square feet. Find its length and width

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5h

If cos ⁡x=−1/2, and 90°<x<180°, find tan⁡(x+30°).
If cos ⁡x=−1/2, and 90°<x<180°, what is tan⁡(x+30°) in radical form?
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5h

If sin⁡ x=2√2, and 90°<x<180°, what is tan⁡(x/2)?
If sin⁡ x=2√2, and 90°<x<180°, what is tan⁡(x/2)??
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5h

If sinx=−1/2, and 270°<x<360°, what is cos(x−30°)?
If sin x=−1/2, and 270°<x<360°, what is cos(x−30°) in fractional form?
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6h

If sin ⁡x=−1/2, and 270°<x<360°, find tan⁡(x−30°).
If sin ⁡x=−1/2, and 270°<x<360°, what is tan⁡(x−30°) in fractional form?
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6h

If sec x=2, and x is in 270°<x<360°, what is tan(x/2)?
If sec x=2, and x is in 270°<x<360°, what is tan(x/2) in fractional form?
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7h

What is the best way to improve your ear?
Are there specific exercises or things that I can do that will improve my ear and allow me to "hear" more in my head?
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7h

how do i solve ?
What is the height (h) of the figure below if the base is 26.3 units and the area is 220.92 square units?
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8h

Inductive effect and delocalization on relative acidity
Why is the pKa of benzoic acid lower than that of phenol? That would mean benzoic acid is a stronger acid and has a more stable conjugate base. But, benzoic acid does not have a signficant amount... more
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8h

Write a polynomial function of least degree in standard form that has rational coefficients, a leading coefficient of 1, with roots of 0, 2, and 3 squared

I really need help, polynomial functions by itself are hard but with the addition of the square root I’m lost
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