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Arturiano [62]
3 years ago
7

10 laps around a track is 400 meters, how long does it take to run 12 kilometers

Mathematics
1 answer:
Pepsi [2]3 years ago
6 0
HOPE THIS HELPS LOL
SORRY IF MY HANDWRITING IS BAD

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Verify that (a+b)+c = a+ (b+c) by taking a = -8 , b = (-8/11) , c = (-8/12)
gogolik [260]

Answer:

Step-by-step explanation:

(-8+-\frac{8}{11} ) + (-\frac{8}{12}) = -\frac{96}{11} + (-\frac{2}{3}) = -\frac{288 + 22}{33}) = -\frac{310}{33}\\ (-8) + (-\frac{8}{11} + (-\frac{2}{3})) = (-8) + (-\frac{46}{33})= -\frac{310}{33}

6 0
3 years ago
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Which axiom is used to prove that the product of two rational numbers is rational
aliina [53]

Answer:

First, a rational number is defined as the quotient between two integer numbers, such that:

N = a/b

where a and b are integers.

Now, the axiom that we need to use is:

"The integers are closed under the multiplication".

this says that if we have two integers, x and y, their product is also an integer:

if x, y ∈ Z ⇒ x*y ∈ Z

So, if now we have two rational numbers:

a/b and c/d

where a, b, c, and d ∈ Z

then the product of those two can be written as:

(a/b)*(c/d) = (a*c)/(b*d)

And by the previous axiom, we know that a*c is an integer and b*d is also an integer, then:

(a*c)/(b*d)

is the quotient between two integers, then this is a rational number.

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3 years ago
What is the solution to x 4 + 4x 3 ≤ 12x 2?
andriy [413]

Answer:

-6,2

Step-by-step explanation:

im not sure what the answer is

4 0
3 years ago
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A certain bacterium splits itself into 2 identical cells in 1 day. Each of those new cells is capable of splitting itself into 2
stiks02 [169]

Answer:

2 with the second power??

Step-by-step explanation:

if you have two with the second power II exponents will multiply it by itself so the number gradually gets larger each time

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proportional relationship in our everyday life: When we put gas in our car, there is a relationship between the number of gallons of fuel that we put in the tank and the amount of money we will have to pay. In other words, the more gas we put in, the more money we'll pay.

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3 years ago
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