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Vedmedyk [2.9K]
3 years ago
6

A definite integral of f(x)dx on the interval a to b probably SHOULDN'T be used:

Mathematics
1 answer:
OLga [1]3 years ago
6 0
= cos( -x ) * [ - sin( - x ) ] = cosx * sinx ;
cosx * sin x is the right answer !
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Simplify the expression. Use standard polynomial format.<br> x(2x + 3) + (x - 3)(x - 4)
timofeeve [1]

Answer:

x(2x + 3) + (x - 3) (x - 4) = 3x²- 4x + 12

Step-by-step explanation:

<em>Expand:</em>

x(2x + 3): 2x² + 3x

2x² + 3x + (x - 3) (x - 4)

<em>Expand</em>:

(x - 3) (x - 4):  x²- 7x + 12

2x² + 3x + x²- 7x + 12

<em>Simplify:</em>

2x² + 3x + x² - 7x + 12:  3x² - 4x + 12

= 3x² - 4x +12

5 0
3 years ago
How do you solve <br> 6⋅1/3x+6⋅1/2=2x+3
pogonyaev

Answer:

x = -3/2, 1

Step-by-step explanation:

1. Use Rule of One

2. Take out the constants

3. Simplify 6/3 to 2

4. Use the product rule

5. Simplify

6. Move all terms to one side

7. Simplify

8. Split the second term

9. Factor out the common terms

10. Factor out the common term (again)

11. Solve for x

5 0
3 years ago
Please take a look at the picture
madam [21]

Answer:

B) -3/10 x -6

Step-by-step explanation:

-3/10 x -6=-3 x -6/10

When multiplying two negatives you get a positive.

Hope this helps :)

8 0
3 years ago
Read 2 more answers
$20 item marked down 40%
sineoko [7]

Answer:

$12

Step-by-step explanation:

8 0
2 years ago
1/2×1/3×1/4 need to show work
klasskru [66]
1x1x1=1
2x3x4=6x4=24
1/24
please mark me brainliest I'm trying to level up

3 0
3 years ago
Read 2 more answers
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