What are 2 thirds of 800

Answers

Answer 1

Answer: 2/3x800= 1600/3 or 533 1/3

Answer 2

Answer: 2/3 of 800 is 1600/3 or 533.33 or 533 1/3

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Expand (3x-4y)^3 please answer thank you

Answers

27x^3-108x^2y+144xy^2-64y^3

Answer:

Step-by-step explanation:

What is -4+(-2)=

I have no clue what i’m doing

Answers

Answer:

-6

Step-by-step explanation:

its just negative four plus negative two

they only put it in parentheses because they cant have both signs right next to each other

Solve for x:

-42 = -7x

Answers

Answer:

x=6

Step-by-step explanation:

-7x= -42

x= -42/-7

x=6

Answer:

x=6

Step-by-step explanation:

-42= -7x divide -7 on both sides

6=x negatives cancel out

x=6 flip (not necessary but teachers like it this way)

Please help with questions 5 and 6 only!!!

Answers

Answer:Hope this helps you...

Please refer the figure while trying to understand these answers.

Step-by-step explanation:

Label each function as even, odd, or neither.

Answers

an even function has symmetry about the x axis

this means that if you fold the graph over the y axis, the function will map over itself

in number terms, if f(x) is an even function, then f(x)=f(-x)

an example is f(x)=x²

an odd function has symmetry about the origin

it is kinda confusing, but if g(x) is an odd function, g(-x)=-g(x)

an example is g(x)=x³

the first one (f(x)) seems to be neither

h(x) one, notice for x=2 and -2, the values are negative of each other, this tells us that it's an odd function

g(x), replacing x with -x gives us -|-2x|+3=-|2x|+3, same function, even function

Karey is prescribed 600 mg of a medication that decays at a rate of 40% per day, d, according to the equation

Answers

Answer : 7.8%

Karey is prescribed 600 mg of a medication that decays at a rate of 40% per day, d, according to the equation

$m=600(0.6)^d$

Noelle takes same amount before 5 days.

Amount of medication remain in Nelle's body is

$m=600(0.6)^5 = 46.656$

Karey is prescribed 600 mg of a medication

We need to find out what percentage of 46.656 in 600

$(46.656)/(600) =0.07776$

Now multiply it by 100 to get percentage

0.07776 * 100 = 7.8%

Answer:b

Step-by-step explanation:

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