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ELEN [110]
3 years ago
9

3(-2a-4)+3a I need to answer for this for khan academy, the answer options are

Mathematics
2 answers:
8_murik_8 [283]3 years ago
5 0

Answer:

1+1 = 1111111111111111111111

tiny-mole [99]3 years ago
4 0
The answer to this is: -3a-12
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What integer describes making a $10 deposit?
skelet666 [1.2K]
The integer that describes making a $10 deposit is: Positive 10: +10
7 0
3 years ago
The table below shows some inputs and outputs of the invertible function f etc ​
Snowcat [4.5K]

Answer:

(a)\ f^{-1}(-15) = -6

(b)\ f^{-1}(4) + f(9)=0

Step-by-step explanation:

Given

The attached table

(a)\ f^{-1}(-15)

This represents an inverse function.

So, we look into x row for its value.

i.e.

f^{-1}(-15) = -6

(b)\ f^{-1}(4) + f(9)

Just like (a)

f^{-1}(4) = -11 ---- by looking into the x rows

f(9) = 11

So:

f^{-1}(4) + f(9)=-11 + 11

f^{-1}(4) + f(9)=0

4 0
2 years ago
A bag contains 1 gold marbles, 6 silver marbles, and 30 black marbles. Someone offers to play this game: You randomly select on
Feliz [49]
You have a 30 out of 37% chance  so i would say 53 cents
i hope this helps at least a little

good luck!
7 0
3 years ago
PLEASEEEEEE HELPPPPPPPPP<br><br> what are the zeros for this?<br> f(x) = 2x^2 + 6x + 2
MatroZZZ [7]

Answer:

-3/2 ±1/2 sqrt(5) = x

Step-by-step explanation:

f(x) = 2x^2 + 6x + 2

Set the function equal to 0

0 = 2x^2 + 6x + 2

Factor out 2

0 = 2(x^2 + 3x + 1)

Divide by 2

0 = (x^2 + 3x + 1)

Subtract 1 from each side

-1 = x^2 +3x

Complete the square by dividing the x coefficient by 2 and then squaring

(3/2)^2 = 9/4

-1 +9/4 = x^2 +3x+9/4

-4/4+9/4 = (x+3/2) ^2

5/4 = (x+3/2) ^2

Taking the square root of each side

± sqrt(5/4) = sqrt( (x+3/2) ^2)

±1/2 sqrt(5) =  (x+3/2)

Subtract 3/2 from each side

-3/2 ±1/2 sqrt(5) = x

3 0
2 years ago
‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌
Allushta [10]

Answer:

what ????????????????????????????????????????????????/

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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