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3 years ago

14

Halp xD I took away the ones that I did

1 answer:

FinnZ [79.3K]3 years ago

3 0

4. is 46
8. is 438 dimes
9. is 3.099, 3.289, 3.644, 3.9
10. is .4868

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Quadrilateral EFGH is a scaled copy of quadrilateral ABCD. Select ALL of the true statements.

Anna007 [38]

Answer:

Segment EF is twice as long as segment AB.

The length of segment EH is 16 units.

Step-by-step explanation:

its

8 0

3 years ago

What percentage is 28 min of 3 h. <br><br> Plssss explain too!!

Olegator [25]

Answer:

it's 15.5555555556%

Step-by-step explanation:

$28 \: min \: of \: 3h$

$3h \: in \: min = 3 \times 60$

$3h = 180min$

$\frac{28}{180} = \frac{x}{100}$

$(x)180 = 28(100)$

$(x)180 = 2800$

$\frac{(x)180}{180} = \frac{2800}{180}$

$x = \frac{2800}{180}$

$x = 15.5$

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2 years ago

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What is the area of a parallelogram with a height of 7 feet and a base of 12 feet?

Vesna [10]

Answer:

84ft^2

Step-by-step explanation:

Relying on formula S(area) =a(base) *h(height )

3 0

3 years ago

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Did i do the last question right?

Allisa [31]

Yes u did it looks good to me

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2 years ago

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Set up the integral that uses the method of disks/washers to find the volume V of the solid obtained by rotating the region boun

Blababa [14]

Answer:

$a)\: \frac{3}{2} \pi$

$b) \:\frac{47}{5} \pi$

Step-by-step explanation:

$y=3\sqrt x,\:\:y=3,\:\:x=0$

a) about the line y = 3

$3\sqrt x=3$ ⇒ $x = 1$ is the intersection point

So,

$V=\int\limits^1_0\pi(3-3\sqrt x)^2\:dx=\pi\int\limits^1_0(9-18\sqrt x+9x)\:dx=\\\\=\pi(9x-12x^{3/2}+9/2x^2)|^1_0=\pi(9-12+9/2)=\frac{3}{2} \pi$

b) about the line x = 5

$y=3\sqrt x$ ⇒ $x=y^2/9$

So,

$V = \int\limits^3_0\pi([5-0]^2-[5-y^2/9]^2)\:dy=\pi\int\limits^3_0(25-25+10y^2/9-y^4/81)\:dy=\\\\=\pi(10y^3/27-y^5/405)|^3_0=\pi(10-3/5)=\frac{47}{5} \pi$

8 0

3 years ago