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Sati [7]
4 years ago
13

What’s the derivative of (2x+9)^3

Mathematics
1 answer:
larisa86 [58]4 years ago
8 0

If f(x) = (2x+9)^3, f '(x) = 3(2x+9)^2*(2), or f '(x) = 6(2x+9)^2.  Here we used the power rule with chain rule to find the derivative.

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two sides of a rectangular fence are 5 5/ 8 feet long. the other two sides are 6 1/4 feet long. what is the perimeter
Levart [38]
Perimeter is how far around, so you are going to total the 2 lengths and 2 widths.  A way to write that is P=2l+2w.  

P = 2(5 5/8) + 2 (6 1/4)

2(5 5/8) = 10 10/8 or 11 2/8 or 11 1/4

2(6 1/4) = 12 1/2

P = 11 1/4 + 12 1/2

P = 23 3/4
6 0
4 years ago
Read 2 more answers
Please help me this is urgent!
Gnesinka [82]

Answer:

D. 2 times the distance

Step-by-step explanation:

Practical Math advice: <em>Word Problems usually are tricky so draw, write, and label all you know.</em>

***We want to know how many <u>times</u> <u>farther</u> do the Knicks travel when they play the Los Angeles Lakers <u>compared</u> to the Miami Heat? ***

To do this, we just need to know the distance between the two and divide the bigger by the smaller (think if I told you distance from part A to B is 6 and the distance from part A to C is 3. And then ask you how many times farther the distance to C is from A than B. just <u>divide</u> 6/3 = 2)

1) Note the distance from <u>Madison</u> to <u>Staples</u> (2.8 × 103 miles) and <u>Madison</u> to <u>American A.</u> (1.4 × 103 miles).

We can associate Knicks with <u>Madison</u>, Los Angeles with <u>Staples</u>, and Miami Heat with <u>American A.</u>

2) Now divide 2.8 × 103/(1.4 × 103) = 2

7 0
3 years ago
An open box is made from a 40​-cm by 80​-cm piece of tin by cutting a square from each corner and folding up the edges. The area
tamaranim1 [39]

Answer:

x=2

Step-by-step explanation:

let x be the edge length of the square removed at each corner;

Hence the area of the base is:

A_b(80-2x)(40-2x)=2736\\\\3200-160x-80x+4x^2=2736\\\\\\4x^2-240x+3200=2736\\\\4x^2-240x+464=0\\\\x^2-60x+116=0

Using the quadratic equation formula, or completing the square, x, or length of a side of one of the squares is x=2 or x=58

#Given that x=58 is larger than 40cm, the side length is x=2

6 0
3 years ago
Solve for x. Please help
Shkiper50 [21]

Answer:

x=11

Step-by-step explanation:

3x+3(5x-6)= 180

Distribute 3 to 5x and -6

3x+15x-18=180

Combine like terms

18x-18=180

Add 18 to both side

18x=198

Divide 18 on both side

x=11

5 0
1 year ago
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ikadub [295]

Answer:

with what?

Step-by-step explanation:

5 0
3 years ago
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