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Artist 52 [7]
3 years ago
5

X2 + 3x + 2 x2 + 2x

Mathematics
1 answer:
Mars2501 [29]3 years ago
7 0

Answer:

x= -2

Step-by-step explanation:

set the two equations equal to each other, and since the x2 cancels out, you're left with 3x+2= 2x, which simplifies to x= -2

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At Smith’s Bike Rentals, it cost $27 to rent a bike for 6 hours. How many dollars does it cost per hour of bike use
lilavasa [31]

Answer:

$4.50 per hour

Step-by-step explanation:

Step 1: 27 divided by 6 is 4.50

Step 2: Double check your work by multiplying 4.50 times 6 to make sure you get 27

8 0
3 years ago
Read 2 more answers
Emilio has 8,450 trees to plant in row of his tree garden.He will plant 125 trees per row.How many full rows of trees will he ha
Gnoma [55]

Answer:

67 full rows

Step-by-step explanation:

8450÷125 =67.6 since the .6 isn't a full row there is 67 full.

6 0
3 years ago
6-x=5x+30 know the answer?
Svetlanka [38]

Answer:x=-4

Step-by-step explanation:

move 5x to the other side by cancelling it out with -5x

that causes it to be 6-6x=30

move 6 to other side by cancelling out with -6

causes it to be -6x=24

divide by -6 to get x alone

x=24/-6

answer is -4 when reduced

6 0
3 years ago
Read 2 more answers
Choose the correct simplification of (4x − 3)(3x2 − 4x − 3).
Korolek [52]

the expression simplified is:

12x^3 - 25x^2 + 9

<h3>How to simplify the given expression?</h3>

Here we have the expression:

(4x - 3)*(3x^2 - 4x - 3)

We just need to distribute the product, we will get:

(4x - 3)*(3x^2 - 4x - 3)\\\\(4x)*(3x^2 - 4x - 3)  - 3*(3x^2 - 4x - 3)\\\\12x^3 - 16x^2 - 12x - 9x^2 + 12x + 9

Now we just need to group terms with the same exponent of x:

12x^3 - 16x^2 - 12x - 9x^2 + 12x + 9\\\\12x^3 + (-16 - 9)x^2 + (-12 + 12)x + 9\\\\12x^3 - 25x^2 + 9

That is the expression simplified

If you want to learn more about simplification:

brainly.com/question/723406

#SPJ1

8 0
2 years ago
(a) The curve with equation y2 = x3 + 3x2 is called the Tschirnhausen cubic. Find an equation of the tangent line to this curve
Dafna1 [17]

Answer:

  (a)  y = 9/4x -1/4

  (b)  (-2, -2), (-2, 2)

  (c)  see below

Step-by-step explanation:

(a) The derivative can be found from ...

  2y·y' = 3x² +6x

At (x, y) = (1, 2), this is ...

  4y' = 9

  y' = 9/4

so the equation of the tangent is ...

  y = (9/4)(x -1) +2

  y = (9/4)x -1/4

__

(b) At y' = 0, we have ...

  0 = 3x² +6x = 3x(x +2)

This says y' = 0 at x=0 or x=-2. (x = 0 is an extraneous solution.)

At x = -2, we have ...

  y² = (-2)³ +3(-2)² = -8+12 = 4

  y = ±2

So, the horizontal tangent points are (x, y) = (-2, ±2).

5 0
3 years ago
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