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2 years ago

PLEASE HELP! 28 POINTS!

Mathematics

2 answers:

ehidna [41]2 years ago

6 0

1.) 7.2 2.) 15 3.)12
4.) 23 5.) 100, 100, 1000

choli [55]2 years ago

5 0

Number three is twelve ? :)

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What is the ratio of the area of the inner square to the area of the outer square?

Anastasy [175]

Answer:

$\frac{(a-b)^2+b^2}{a^2}$

Step-by-step explanation:

Since, By the given diagram,

The side of the inner square = Distance between the points (0,b) and (a-b,0)

$=\sqrt{(a-b-0)^2+(0-b)^2}$

$=\sqrt{(a-b)^2+b^2}$

Thus the area of the inner square = (side)²

$=(\sqrt{(a-b)^2+b^2})^2$

$=(a-b)^2+b^2\text{ square cm}$

Now, the side of the outer square = Distance between the points (0,0) and (a,0),

$=\sqrt{(a-0)^2+0^2}$

$=\sqrt{a^2}=a$

Thus, the area of the outer square = (side)²

$=a^2\text{ square cm}$

Hence, the ratio of the area of the inner square to the area of the outer square

$=\frac{(a-b)^2+b^2}{a^2}$

4 0

2 years ago

Read 2 more answers

You are designing a container in the shape of a cylinder. The radius is 5 inches. You want the container to hold at least 725π c

12345 [234]

Answer:

The answer to your question is: h = 14.5 in

Step-by-step explanation:

Data

radius = 5 in

Volume = 725 π in³

height = ?

Formula

Volume = 2πr²h

Substitution

725 π in³ = 2πr² h

h = 725π / 2πr²

h = 725 / 2(5)²

h = 725 / 50

h = 14.5 in

3 0

3 years ago

Find the value of x and y.<br><br>help me out ASAP!!

il63 [147K]

Step-by-step explanation:

13x + 15 = 19x - 9 ( being opposite sides of parallelogram)

19x - 13x = 15 + 9

6x = 24

x = 24 / 6

x = 4

4y + 7° + 10y - 37° = 180° {being co-interior angles }

14y = 180° - 7° + 37°

14y = 210°

y = 210°/ 14

y = 15°

Hope it will help :)

3 0

2 years ago

What is the area of the semi circle if the diameter is 10 cm

Fudgin [204]

Answer:

39.25 cm

Step-by-step explanation:

The formula for a circle is pi x radius x radius.

So to get the radius, you multiply 10 and 1/2. You should get 5. Then you multiply 5 by 5. You should get 25.

Then you multiply 3.14 and 25. You should get 78.5.

The last step is to divide 2 by 78.5. You should get 39.25

3 0

3 years ago

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Select the equation written in point-slope form.

Kisachek [45]

D, y-y1=m(x-x1)
^^^^^^^^^^^^^^^

6 0

3 years ago