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4 years ago

A rectangle is 19 feet long and 3 feet wide what is the area

Mathematics

1 answer:

Lisa [10]4 years ago

8 0

19 times 3 equals = 57ft squared. Area = 57ft squared

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A sphere is just enclosed inside a right circular cylinder. If the volume of the sphere is 140 cm3, find the volume of the gap b

alexgriva [62]

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Find Radius :
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$\text {Volume of a sphere =} \dfrac{4}{3} \pi r^3$

$\dfrac{4}{3} \pi r^3 = 140$

$\pi r^3 = 140 \times \dfrac{3}{4}$

$\pi r^3 = 105$

$r^3 = \dfrac{105}{ \pi}$

$r = 3.22 \ cm$

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Find volume of the cylinder :
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$\text {Volume of the cylinder = } \pi r^2h$

$\text {Volume of the cylinder = } \pi ((3.22)^2(3.22 \times 2)$

$\text {Volume of the cylinder = } 209.77 \ cm^3$

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Find volume of the gap :
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$\text {Volume of gap = } 209.77 - 140$

$\text {Volume of gap = } 69.77 \ cm^3$

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$\bf \text {Answer : } 69.77 \cm^3$
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6 0

4 years ago

Which angles are pairs of corresponding angles? Check all that apply

AleksAgata [21]

Answer:

B and D people. Your welcome.

Step-by-step explanation:

6 0

3 years ago

( m + 4 ) ( m + 1 )

love history [14]

(m+4)(m+1)

=m^2+5m+4........

3 0

3 years ago

Two boats start their journey from the same point A and travel long directions AC and AD as shown below what is the distance CD

Olegator [25]

I think its B but ima have to check again and get back to you

4 0

3 years ago

Read 2 more answers

Help! answer options included

lawyer [7]

Answer:

Y = [-6 6 6 -6]

Step-by-step explanation:

From the given matrices

If X - 2Y = Z

b - 2c = a ... 1

a -2d = c ...2

4+2a = 16.... 3

a + 2b = b .... 4

From3 ;

2a = 16-4

2a = 12

a = 6

From 4;

a + 2b - b = 0

a+b = 0

a = -b

6 = -b

b = -6

From1;

b - 2c = a

-6 - 2c = 6

-2c = 12

c = -6

also

a - 2d = c

6-2d = -6

-2d = -6-6

-2d = -12

d = 6

Hence the matrices Y = [-6 6 6 -6]

4 0

3 years ago