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AfilCa [17]
3 years ago
9

Pls help, I don’t understand how to do this

Mathematics
2 answers:
xxTIMURxx [149]3 years ago
5 0

Answer:

5

Step-by-step explanation:

MAVERICK [17]3 years ago
4 0

Answer:

5 parts are shaded and 4 parts are white so:

There are 9 parts all together.

We can then form ratio's of the white areas and the shaded areas:

White Area Ratio =

\frac{4}{9}

Shaded Area Ratio =

\frac{5}{9}

Let the area of sqaure be equated to x, which means let the entire area of the square equal to x:

x = Area of whole square

Now we can form an equation :

\frac{5}{9} x = 165

So now we just need to solve for x:

x = \frac{165}{ \frac{5}{9} }

x = 297

The area of the square is:

297 {cm}^{2}

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The graph of a quadratic function is shown on the grid.
Vinvika [58]

Answer:

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Step-by-step explanation:

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3 years ago
(6x4 – 6х3 + 11х2 -х + 20) /<br> (3х2 + 3х + 4)
Fittoniya [83]

Answer:

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6 0
2 years ago
Which shows the graph of the solution set of 2x + y &lt; 4?
insens350 [35]

Answer:

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Step-by-step explanation:

6 0
3 years ago
The volume of a cone of radius r and height h is given by V=πr²h³. If the radius and the height both increase at a constant rate
Aloiza [94]

Answer:

The volume of cone is increasing at a rate 1808.64 cubic cm per second.

Step-by-step explanation:

We are given the following in the question:

\dfrac{dr}{dt} = 12\text{ cm per sec}\\\\\dfrac{dh}{dt} = 12\text{ cm per sec}

Volume of cone =

V = \dfrac{1}{3}\pi r^2 h

where r is the radius and h is the height of the cone.

Instant height = 9 cm

Instant radius = 6 cm

Rate of change of volume =

\dfrac{dV}{dt} = \dfrac{d}{dt}(\dfrac{1}{3}\pi r^2 h)\\\\\dfrac{dV}{dt} = \dfrac{\pi}{3}(2r\dfrac{dr}{dt}h + r^2\dfrac{dh}{dt})

Putting values, we get,

\dfrac{dV}{dt} = \dfrac{\pi}{3}(2(6)(12)(9) + (6)^2(12))\\\\\dfrac{dV}{dt} =1808.64\text{ cubic cm per second}

Thus, the volume of cone is increasing at a rate 1808.64 cubic cm per second.

5 0
3 years ago
How many equal line segments are needed to make a row of 35 squares?
kotykmax [81]

Answer:

each pair of distinct vertices we connect them up with

a line segment. There are (8 2 )=28 such line segments.

Step-by-step explanation:

-

5 0
3 years ago
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