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zavuch27 [327]
4 years ago
15

15 pts! Will Give Brainliest Halp! PLZ

Mathematics
2 answers:
babymother [125]4 years ago
7 0

\dfrac{-8}{2}=-8:2=-4\\\\\dfrac{6}{-3}=6:(-3)=-2\\--------------------------\\\dfrac{-8}{2}\div\dfrac{6}{-3}=-4:(-2)=2\\\\Answer:\ 2

-----------------------------

\dfrac{-}{+}=\dfrac{+}{-}=-\\\\\dfrac{+}{+}=\dfrac{-}{-}=+

aivan3 [116]4 years ago
3 0

Theres a saying: Dividing fractions dont ask why, just flip the second and multiply.

so a/b / c/d = a/b * d/c

-8/2 * -3/6

1. cross - cancel common factor 2

4/2 * -3/3

2. Multiply

-4(-3)/ 2*3

3. multiply numbers

--12/2*3

- -12/6

4. Apply fraction rule -a/b=- a/b

=-(-12/6)

5. divide

= -(-2)

6. Apply rule -(-a)=a

=2

Your answer would be 2


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The notation f:S→T denotes that f is a function, also called a map , defined on all of a set S and whose outputs lie in a set T
AnnyKZ [126]

Answer:

There are many. Two examples are

f(x) = x, \\f(x) = x^3

Step-by-step explanation:

There are many examples. The simplest is

1 -

f(x) = x

It is trivial that

\text{if \,\,\,\,}  f(x) = f(y) \,\,\,\,\,\text{then} \,\,\,\,\, x=y

2 -

f(x) = x^3

That function is injective as well.

\text{if \,\,\,\,}  x^3 = y^3 \,\,\,\,\,\text{then} \,\,\,\,\, x=y

An example of a function that is NOT injective is

f(x) = x^2

Notice that

f(-2) = (-2)^2 = 2^2 = 4

4 0
3 years ago
A rational expression is undefined whenever its numerator is zero.
kipiarov [429]

Answer:

False

Step-by-step explanation:

for a rational number expressed as (A / B) where A & B are integers

if the numerator (A) is zero, then (A/B) is simplify zero

i.e (A / B) = (0 / B) = 0

however if the denominator (B) is zero, then by definition any value divided by zero is undefined.

(A / B) = (A / 0) = {undefined}

7 0
3 years ago
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Karolina [17]

I think we have to see the image to answer you question

7 0
3 years ago
a sporting goods store receives a shipment of 124 golf bags. The shipment includes two types of bags, full-sized and collapsible
Dominik [7]
The sporting goods store receives the shipment of 124 golf bags in total.
Let us assume that the number of full-sized bags = X
Then the number of collapsible golf bags = 124 - X
Cost of each full sized bags = $38.50
Cost of each collapsible bags = $22.50
Total cost of the 124 bags received by the sporting goods store = $3430
Then
(38.50)X + (124 - X)22.50 = 3430
(38.50X - 22.50X) + 2790 = 3430
16X = 3430 - 2790
16X = 640
X = 640/16
   = 40
So the number of full-sized golf bags received = 40
Then the number of collapsible golf bags received = 124 - 40
                                                                                 = 84
7 0
3 years ago
List the least to greatest 2.51%, 2.4%, 2.399%, 2.36%, 2.119%
Andreyy89
2. 119% , 2-36%,2-399%, 2:4%, 2.51%
5 0
3 years ago
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