3 years ago

I don't understand this at all, please help!

Mathematics

1 answer:

anastassius [24]3 years ago

7 0

Answer:

hi dude

Step-by-step explanation:

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The circle below has a diameter of 12 centimeters. What is the approximate area of the shaded sector?

Hatshy [7]

Answer:

D 97 cm^2

Step-by-step explanation:

The area of the circle is

A = pi * r^2

We need to convert diameter to r

d =2r

d/2 =r

12/2=r

6 =6

The radius is 6

A= pi *6^2

A = 36 *(3.14)

A = 113.04 cm^2

Now the fraction of the circle that is shaded is 301degrees out of 360

(A circle is 360 degrees)

310/360 * area of a circle

310/360 * 113.04

97.34

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2 years ago

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From point a travel 12 km south and 10 km west then travel 5 km north how far r u from point a

maks197457 [2]

Answer:17

Step-by-step explanation:

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3 years ago

M=-3/7 ; (-5,6) what is the equation of the line

exis [7]

Y - 6 = -3/7(x + 5)

y - 42/7 = -3/7x - 15/7

y = -3/7x + 27/7

6 0

2 years ago

Line ab and cd (if presented in the picture) are straight lines. Find x (the pictures are not scaled)

erastova [34]

Answer:

$x + 2x + 34 + 20 = 180$

3 0

3 years ago

The density of titanium is 4.51 g/cm^3

forsale [732]

The volume of titanium is 20.86 cubic inches

<em><u>Solution:</u></em>

The volume is given by formula:

$volume = \frac{mass}{density}$

From given,

Density of titanium = 4.51 $g/cm^3$

Mass = 3.4 lb

Let us convert the mass to grams

1 pound = 453.592 grams

Therefore, 3.4 pound is equal to:

$3.4 \text{ pound } = 3.4 \times 453.592 \text{ grams }\\\\3.4 \text{ pound } = 1542.2128\text{ grams }$

Now substitute the values into formula:

$volume = \frac{1542.2128}{4.51}\\\\volume = 341.95 cm^3$

Let us convert cubic centimeter to cubic inches

1 cubic centimeter = 0.0610237 cubic inches

Therefore,

$341.95\ cm^3 = 0.0610237 \times 341.95\ in^3 = 20.86\ in^3$

Thus volume of titanium is 20.86 cubic inches

6 0

2 years ago