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3 years ago

What Did the Baby Porcupine Say When It Backed into a Cactus??

Mathematics

2 answers:

Katen [24]3 years ago

8 0

Answer:

Is that you, Mommy?

Step-by-step explanation:

Serggg [28]3 years ago

8 0

Ummmmm ouch is this a riddle or a math question ahhaah

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Last week marcella earned $432. Turing that week, she worked 8 hours for 4 days and 4 hours on one day. what was Marcella's pay

Step2247 [10]

The answer is approx. 10.8 per hour.

If you want to round it up, it would be 11. I prefer you not to round though as this is Money. Money should have decimals included.

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3 years ago

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Which polynomial is prime? x3 + 3x2 – 2x – 6 x3 – 2x2 + 3x – 6 4x4 + 4x3 – 2x – 2 2x4 + x3 – x + 2

alexandr1967 [171]

D. 2x4+x3–x+2 <span>is prime</span>

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3 years ago

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Need help on numbers 6, 7, and 8 ill mark brainliest if they are right

mr Goodwill [35]

Answer:

Volume of Triangular Pyramid =29920 cubic inches

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(Is this answer helpful :-)

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3 years ago

There are 12 students in a jewelry-making class and 8 sets of charms. What fraction of a set of charms will each student get?

LekaFEV [45]

2/3 because 8 divided by 12 is 8/12 but you have to round it and you would get 2/3

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3 years ago

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Determine the maximized area of a rectangle that has a perimeter equal to 56m by creating and solving a quadratic equation. What

sveticcg [70]

Answer:

Area of rectangle = $196\,m^2$

Length of rectangle = 14 m

Width of rectangle = 14 m

Step-by-step explanation:

Given:

Perimeter of rectangle is 56 m

To find: the maximized area of a rectangle and the length and width

Solution:

A function $y=f(x)$ has a point of maxima at $x=x_0$ if $f''(x_0)$

Let x, y denotes length and width of the rectangle.

Perimeter of rectangle = 2( length + width )

$=2(x+y)$

Also, perimeter of rectangle is equal to 56 m.

So,

$56=2(x+y)\\x+y=28\\y=28-x$

Let A denotes area of rectangle.

A = length × width

$A=xy\\=x(28-x)\\=28x-x^2$

Differentiate with respect to x

$\frac{dA}{dx}=28-2x$

Put $\frac{dA}{dx}=0$

$28-2x=0\\2x=28\\x=14$

Also,

$\frac{d^2A}{dx^2}=-2$

At x = 14, $\frac{d^2A}{dx^2}=-2$

So, x = 14 is a point of maxima

So,

$y=28-x=28-14=14$

Area of rectangle:

$A=xy=14(14)=196\,m^2$

Length of rectangle = 14 m

Width of rectangle = 14 m

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3 years ago