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123  - 43  - 39 - 31   = 10  people  are left

All 10  must have guessed  4 fruits correctly, because if they guessed 3 fruits correctly, then, by default, the last fruit must also also have been guessed correctly...!!!

Correct......iiVoidRavenZ.....!!!!

Glass.....

A green house is made out of glass! 

Tuesday paid.....!!!!

Is this not sience or are you a greater grade than me BTW i am in 4th grade

The doctor is the boy's mother! 

Am I correct, or am I just stupid?

It looks like ? = 2 * 9 triangulated

x triangulated = (x² + x)/2

? = 9²+9

? = 90

? = x²

90 = x²

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

243  - 504  =   -216° F

Nice answer, helperid.....!!!!!

d⁷ * d⁹ = d¹⁶

4.5 is 9/2

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)

30000 x 1000  =    30,000,000    [thirty million ]

Number of seconds in a day  =

60s  in 1 minute

60 min in 1 hour

24 hrs in a day

So

60 * 60 * 24   =  86,400  seconds in one day

So....1 sec    =       1 / 86,400    of a day

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

HI!!! I haven't been here in a while. It's good to see you too! Thank you so much for all your help!

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

Good to see you, Mellie....!!!

V cube  =   s^3        where s is the side length of the cube   (1)

V sphere in a cube   =  (4/3)pi (1/2s)^3    (2)

Ratio  of  (2)  to (1)   =

(4/3)pi (1/2s)^3 /  s^3   =

(4/3)pi *(1/8)s^3 /s^3 

(4/3)pi (1/8) / 1  =

pi / 6

V cylinder  =   pi * r^2 * h  →  pi*r^2 *(2 r )  → 2* pi*r^3  (1)

V sphere  =   (4/3) * pi * r^3    (2)

Ratio  of  (2)  to (1)  =

[(4/3) pi * r^3 ] / [ 2 *pi * r^3 ]  =

(4/3) /  2  =

4/6  =

2/3

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

Thank you!!! :)

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