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2 years ago

The product of (x + 3)(-x2 + 4x − 2) is:

Mathematics

2 answers:

masha68 [24]2 years ago

5 0

Answer:

Hey 2923928 !

Answer: The second choice

$\dashrightarrow \: { \tt{(x + 3)( - {x}^{2} + 4x - 2)}}$

• from distributive property;

$\dashrightarrow \: { \tt{( - {x}^{3} + 4 {x}^{2} - 2x - 3 {x}^{2} + 12x - 6) }}$

• simplify:

$\dashrightarrow \: { \tt{ - {x}^{3} + {x}^{2} + 10x - 6}}$

lisov135 [29]2 years ago

4 0

Answer:

-x^3 + x^2 + 10x - 6

Step-by-step explanation

1. distirbute the x and 3(multiply) into this equation -x^2+4x-2

2. add all similar numbers

3. Profit.

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Shelly is 3 years older than Michele. Four years ago the sum of their age was 67. Find the age of each person.

lawyer [7]

total of ages now is 67 + 4 + 4 = 75

S=shelly

M= Michelle

Michelle is 3 yrs younger than Shelly so use S-3

S +M = 75

replace M with S-3 to get:

S +S-3=75

2S=78

s=39

So shelly is 39

Michelle is 3 years younger = 39-3 = 36

4 0

3 years ago

Read 2 more answers

A patient is given a 50 mg dose of medicine the medicines affective Ness decreases every hour at a constant rate of 40% what is

kupik [55]

The following formula is used to find the answer.
D = 50 mg (0.6^n)
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3 years ago

When you multiply a function by -1, what is the effect on its graph?

Dafna1 [17]

9514 1404 393

Answer:

B. The graph flips over the x-axis

Step-by-step explanation:

When you plot the coordinate pair (x, y), you plot the point 'y' units above the x-axis. If you change the sign of that (multiply the function by -1), then the point becomes (x, -y), and is plotted 'y' units below the x-axis.

The graph flips over the x-axis.

Attached is an example of a function with its original graph (red) and the graph after being multiplied by -1 (blue). The blue graph is a reflection of the red graph across the x-axis.