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Finger [1]
2 years ago
6

Select the correct answer.

Mathematics
1 answer:
Naddik [55]2 years ago
7 0

-208

Explanation:

If the complete expression is a³ – 6³

then a³ – 6³ with a being equal to 2 is

(2)³ – (6)³ =

(2 × 2 × 2) – (6 × 6 × 6)

=

(4 × 2) – (36 × 6)

=

(8) – (216)

=

-208

This is done with substitution, just do the arithmetic with 2 in the place of a.

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3to the 4 power times 2to the Third power
brilliants [131]

Answer:

648

Step-by-step explanation:

3^4 \cdot 2^3 = 3 \cdot 3 \cdot 3 \cdot 3 \cdot 2 \cdot 2 \cdot 2 = 81 \cdot 8 = 648

3 0
4 years ago
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tia_tia [17]

Answer:

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Step-by-step explanation:

difference means subtract

19 - 4 = 15

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7 0
4 years ago
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REALLY NEED HELP WITH THIS!!!​
koban [17]

Answer:

9

Step-by-step explanation:

Solve the equation

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4 0
3 years ago
Solve the equation for x, where x is a real number (5 points): <br> -2x^2 + 6x + 4 = 5
olasank [31]
Subtract 5 to both sides so that the equation becomes -2x^2 + 6x - 1 = 0.
To find the solutions to this equation, we can apply the quadratic formula. This quadratic formula solves equations of the form ax^2 + bx + c = 0
                                            x = [ -b ± √(b^2 - 4ac) ] / (2a)
                                            x = [ -6 ± √((6)^2 - 4(-2)(-1)) ] / ( 2(-2) )
                                            x = [-6 ± √(36 - (8) ) ] / ( -4 )
                                            x = [-6 ± √(28) ] / (-4)
                                            x = [-6 ± 2*sqrt(7) ] / (-4 )
                                            x =3/2 ± -sqrt(7)/ 2
The answers are 3/2 + sqrt(7)/2 and 3/2 - sqrt(7)/2.
6 0
3 years ago
Three of the expressions will give the amount that remains after t years of a certain radioactive substance. Which expression is
MakcuM [25]

Answer:

The answer is D

Step-by-step explanation:

4 0
4 years ago
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