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3 years ago

find the length and width of a rectangle that has an area of 968 square feet and whose perimeter is a minimum

Mathematics

1 answer:

andrezito [222]3 years ago

3 0

The question isn't finished...

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The answer for the length width and square feet

Anvisha [2.4K]

Answer:

whats the drawing.

Step-by-step explanation:

8 0

3 years ago

In converting 30 pounds to ounces, what unit (omit the number) would you

gladu [14]

Step-by-step explanation:

to convert pounds into ounces you'd

actually multiply 16 by 30:

30 * 16

you're doing this because if one pound equals 16 ounces, if you have 30 pounds then you must've had more ounces. therefore you'd multiply.

which is 480 pounds

Enjoy!

6 0

3 years ago

There are 18 girls and 12 boys in your class. What is the probability that a new kid entering your class will be a boy ?

xenn [34]

C.
12/30=0.4
You should really learn how to do probabilities. They don't go away after like the sixth grade.

6 0

3 years ago

A castle has to be guarded 24 hours a day. Five knights are ordered to split each day’s guard duty equally. How long will each k

Kisachek [45]

I think that is 248 min in one day because 24/5 is 4.8. 4hours and 8 min. 4 times 60 is 240. 240 plus 8 is 248 this is what I think.

7 0

3 years ago

Find a and b so that f(x) = x^3 + ax^2 + b will have a critical point at (2,3).

Digiron [165]

Using the critical point concept, it is found that a = -3 and b = 7.

<h3>What are the critical points of a function?</h3>

The critical points of a function are the values of x for which:

$f^{\prime}(x) = 0$

In this problem, the function is:

$f(x) = x^3 + ax^2 + b$

Hence, the derivative is:

$f^{\prime}(x) = 3x^2 + 2ax$

Then:

$f^{\prime}(x) = 0$

$3x^2 + 2ax = 0$

$x(3x + 2a) = 0$

$x = 0$

$3x + 2a = 0$

$3x = -2a$

$x = -\frac{2a}{3}$

Since the critical point is at x = 2, we have that:

$-\frac{2a}{3} = 2$

$-2a = 6$

$2a = -6$

$a = -3$

Then:

$f(x) = x^3 - 3x^2 + b$

Critical point at (2,3) means that when $x = 2, y = 3$ , then:

$3 = 2^3 - 3(2)^2 + b$

$8 - 12 + b = 3$

$b = 7$

You can learn more about the critical point concept at brainly.com/question/2256078

4 0

2 years ago