helperid1839321

What the question is apparently saying is that y prime = y double-prime . The only place I've heard of primes is in geometry, so good luck! Sorry I couldn't help more. DX

It looks like ? = 2 * 9 triangulated

x triangulated = (x² + x)/2

? = 9²+9

? = 90

? = x²

90 = x²

\(x =3\sqrt{10}\)

d⁷ * d⁹ = d¹⁶

1. Find the length of the lines that are parallel to each other. Set these equal to b₁ and b₂ (these are the "bases" of the trapezoid)
2. Find the height of the trapezoid (The height is perpendicular to both of the bases)
3. Solve using this formula: Area_trapezoid = h*((b₁ + b₂)/2)

Slope-intercept form: y=mx+b

m=-3/4

Solve for b: 2 = -3/4(4) + b

2 = -3 + b

5 = b

Equation: y = -3x/4 + b

It isn't exponential decrease - it's exponential decay. (side note)

My method: f(x) = a(1 - percent decrease)^x

I'm assuming your expression is this:

(-2x³y⁰z³)³

Let's get started.

-2³ = -8

(x³)³ = x⁹

y⁰ = 1, 1³ = 1

(z³)³ = z⁹

Answer: -8x⁹z⁹

5 million * 0.00001% = 5 people

The reaction states that for every atom of zinc, there are 2 atoms of hydrochloric acid

since the units are the same, we can simply change "atoms" to "moles"

So: 1 mole Zn + 2 moles HCl works in the equation

Since we have 3 moles of zinc, we can just multiply each part of the chemical reaction by 3 (chemical reactions are kind of like equations).

2 mol Zn + 6 mol HCl --> 3 mol ZnCl₂ + 3 mol H₂

H₂ is hydrogen gas

therefore: 3 mol of hydrogen gas are created

Volume of cone/pyramid = ((pi)r²*height)/3

Volume of sphere = (4(pi)r³)/3

(pi)r²h=4(pi)r³

(pi)h=4(pi)r

h=4*r

the height of the cone is 4 times the radius of the cone or sphere