2 years ago

please help me I only have 2 minutes left winner gets brainliest is 1 + (8r+9) and (2+8) + 8r equivalent

Mathematics

1 answer:

s344n2d4d5 [400]2 years ago

7 0

Answer:

Yes, this is equivalent.

Hope this helps!

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kupik [55]

3/10=0.3=30%

725/1000=0.725=72.5%

4/10=0.4=40%

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2 years ago

The width,w, of a rectangular garden is X -2 the area of the garden is X^3-2X-4 what is an expression for the length of the gard

slamgirl [31]

$A=lw \Rightarrow l=\frac{A}{w}$
A - area, l - length, w - width

$w=x-2 \\
A=x^3-2x-4 \\ \\
l=\frac{x^3-2x-4}{x-2}=\frac{x^3-2x^2+2x^2-4x+2x-4}{x-2}=\frac{x^2(x-2)+2x(x-2)+2(x-2)}{x-2}= \\
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The answer is D. x²+2x+2.

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3 years ago

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Find the centroid for an area defined by the equations y = x² + 3 and y = - (x – 2)² + 7

meriva

The points where the 2 graphs intersect is where x = 0 and x = 2.

- 2 2
x = INT x dA / INT dA
0 0

INT dA = INT -x^2 + 4x + 3 - (x^2 + 3 ) dx = INT -2x^2 + 4x
= -2 x^3/3 + 2x^2
= 2.667 between 0 and 2

xdA = -2x^3 + 4x^2 INT xdA = -x^4/2 + 4x^3/3 = 2.667

centroid = 2.667 / 2.667 = 1 (x = 1)

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3 years ago

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The length of a rectangle is 25 cm.

likoan [24]

Answer:

20<

Step-by-step explanation:

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The given figure is a cylinder. The radius of

lesantik [10]

Answer:

11403.98133

Step-by-step explanation:

V = πr^2h = π·11^2·30 ≈ 11403.98133

8 0

2 years ago