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nexus9112 [7]
3 years ago
12

A square with side x, is changing with time where x(t)=3t+1. What is the formula for the rate of change of the area of the squar

e
Mathematics
1 answer:
lawyer [7]3 years ago
5 0

Answer:

  A' = 6(3t +1)

Step-by-step explanation:

The area is the square of the side length, so ...

  A = (3t +1)²

The derivative with respect to t is then

  A' = 2(3t +1)·(3) = 6(3t +1)

If you like, you can multiply out the area expression first, then differentiate.

  A = 9t² +6t +1

  A' = 18t +6

This can be factored, if you like, to ...

  A' = 6(3t +1)

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umka21 [38]

Answer:-69

Step-by-step explanation:

The sum of +3 & (6-0)=9

-60-(+9)=-69

7 0
3 years ago
Convert this number expressed in standard form to scientific notation.<br><br> 28,500,000
tekilochka [14]

Answer:

2.85 × 10^7

Step-by-step explanation:

1.In scientific notation, the whole number before the decimal point shouln't be more than 10(exclude 10) or less than 1(include 1)

2.Count the digits after the decimal point to write the power.

Solution;

1. 2.85( 2 is not less than 1 as well as more than 10).

2.Since there are 7 digits after the decimal point, we should write the power 10^7.

3. Complete answer;

2.85 × 10^ 7

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3 years ago
ZA and ZB are vertical angles. If mZA= (5x – 4) and mZB = (2x – 1)º, then find the value of x. INI​
natulia [17]

Answer:

x = 1

Step-by-step explanation:

It is given that,

∠A and ∠B are vertical angles.

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We need to find the value of x.

We know that, the vertical angles are equal. So,

∠A=∠B

(5x – 4)=(2x – 1)

Taking like terms together,

5x-2x = 4-1

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x = 1

So, the value of x is equal to 1.

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2 years ago
Dividir entre la raíz más cercana
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Where is the question ?
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1 year ago
Solve the equation 0.25 (8z - 4) = z + 8 - 2z
Andrew [12]
Distribute
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add like terms
2z-1=-z+8
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4 0
3 years ago
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