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maksim [4K]
3 years ago
6

Find −3a2 − b3 + 3c2 − 2b3 if a = 2, b = −1, and c = 3

Mathematics
2 answers:
goldfiish [28.3K]3 years ago
7 0
-3(2)2-(-1)3+3(3)2-2(-1)3. FIRST SUBSTITUTE ALL GIVEN VALUES -12+3+18+6. SIMPLIFICATION 15. ANSWER (just remember -×- =+ )
julsineya [31]3 years ago
5 0
A = 2, b = -1, c = 3

-3a^2 - b^3 + 3c^2 - 2b^3
-3(2^2) - (-1^3) + 3(3^2) - 2(-1^3)
-3(4) - (-1) + 3(9) - 2(-1)
-12 + 1 + 27 + 2
-12 + 30
18 <===

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What does it mean to find the inverse of a function
goldenfox [79]

In mathematics, an inverse function (or anti-function) is a function that "reverses" another function: if the function f applied to an input x gives a result of y, then applying its inverse function g to y gives the result x, and vice versa, i.e., f(x) = y if and only if g(y) = x. <u><em>Courtesy to Wikipedia</em></u>

5 0
3 years ago
Question: State whether each table of values represents a function​
Mashcka [7]

Answer:

Please check the explanation.

Step-by-step explanation:

  • As we know that the values in the table represent a function​ only if there there is only 1 input for every output.

Given the table 1

x              y

-12           2

-10           10

0              -2

5              -6

8               -11

15              -15

From the table, it is clear that for each input there exists a unique output.

i.e.

According to the given table,

y = 2 at x=-12

y = 10 at x=-1 0

y = -1 at x=0

y = -11 at x=8

y = -15 at x=15

From the table, it is clear that for each input x, it has a unique output y.

Hence, table 1 is a function.

Given the table 2

x              y

9            -18

-20           0

-6              1

-17              16

9                17

11              19

This table does not produce a function, because the input x=9 produces two outputs.

i.e.

at x = 9, the y = -18

at x = 9, the y = 17

Therefore, the table 2 does not represent a function.

3 0
3 years ago
What is the value of 24x -60
Aleksandr [31]

Answer:

-1440

Step-by-step explanation:

24x -60 = -1440

3 0
3 years ago
The expression 12x+15x-11x can be combined because of which property
Kazeer [188]
The answer would be A. Commutative property of addition 
7 0
3 years ago
Read 2 more answers
8.4 divided by unknown gives you 2.8 what is the unknown
Anna007 [38]

Answer:

3

Step-by-step explanation:

8.4 ÷ 3 = 2.8

(Hopefully this answers your question)

6 0
3 years ago
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