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Nookie1986 [14]
4 years ago
7

Help me again lol im not smart

Mathematics
1 answer:
Artyom0805 [142]4 years ago
6 0
One could be |x|<-2
This could be one since no matter what you put in for x, it will always be positive.
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The relative frequency of picking up a red toy is . The relative frequency of picking up a green toy is . It is likely that the
Roman55 [17]
What subject is this? ill comment the answer when i know
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3 years ago
What is the area of the largest rectangle with lower base on the x-axis and upper vertices on the curve y = 27 − x^2? show your
LUCKY_DIMON [66]

Answer:

Option B.

Step-by-step explanation:

The given curve is

y=27-x^2

We need to find the area of the largest rectangle with lower base on the x-axis and upper vertices on the curve y=27-x^2.

Let the vertex in quadrant I be (x,y), then the vertex in quadrant II is (-x,y) .

Length of the rectangle = 2x

Width of the rectangle = y

Area of a rectangle is

Area=Length\times width

Area=2x\times y

Substitute the value of y from the given equation.

Area=2x(27-x^2)

A=54x-2x^3      .... (1)

Differentiate with respect to x.

\frac{dA}{dx}=54-6x^2

Equate \frac{dA}{dx}=0, to find the critical points.

0=54-6x^2

6x^2=54

Divide both sides by 6.

x^2=9

x=\pm 3

The value of x can not be negative because side length can not be negative.

Substitute x=3 in equation (1).

A=54(3)-2(3)^3

A=162-54

A=108

The area of the largest rectangle is 108 square units.

Therefore, the correct option is B.

7 0
3 years ago
lily pads increase by 25% very 10days. if a pond starts 22 lilly pads, how many will there be after 50 days
Mars2501 [29]

Step-by-step explanation:

This is an exponential increase. As represented in the picture, approximately 77 lilly pads will be produced after 50 days when there is initial of 22.

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3 years ago
A rectangle has a length of 12 centimeters and a width of 4 centimeters. Find the perimeter.
mamaluj [8]

Answer:


Step-by-step explanation:

Given:

Length (l) = 12 cm

Width (w) = 4 cm

Perimeter of the rectangle = 2(l + w) units

<em>P</em> = 2(12 + 4)

<em>P</em> = 2 (16)

<em>P</em> = 32

<h2><u><em>32 cm</em></u></h2>
4 0
4 years ago
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A triangle has side lengths of 10 cm, 24 cm, and 32 cm. Classify the triangle as acute, obtuse, right of not a triangle.
Stolb23 [73]
It would be obtuse.   
8 0
4 years ago
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