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3 years ago

12

(Photo) Please help me!Find the volume of the cone shown below.

1 answer:

givi [52]3 years ago

3 0

You would use the volume of a cone formula ((1/3)(pi)(r^2)h) so it would be (1/3)(pi)(7^2)(24). That simplified to 392(pi) units^3. So the answer is c

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Lucy has two star systems left to visit on her voyage, but her ship is running low on fuel. The first system, KA-77, is 12001200

-Dominant- [34]

Answer:

1348 light years.

Step-by-step explanation:

Please find the attachment.

Let x represent the distance between KA-7 and KA-11.

We have been given that the first system, KA-7, is 1200 light years away while the second system, KA-11, is 1700 light years away. Lucy sees an angle of 52 degrees between KA-7 and KA-11.

We can see from our attachment that Lucy, KA-7 and KA-11 forms a triangle and we will use law of cosines to solve for x.

$(AB)^2=(AC)^2+(BC)^2-2(AC)(BC)*cos (C)$

Upon substituting our given values in above formula we will get,

$x^2=1200^2+1700^2-2*1200*1700*cos (52^o)$

$x^2=1440000+2890000-4080000*0.615661475$

$x^2=4330000-2511898.81933008$

$x^2=1818101.18066992$

Let us take square root of both sides of our equation.

$x=\sqrt{1818101.18066992}$

$x=1348.3698234\approx 1348$

Therefore, KA-7 and KA-11 are approximately 1348 light years apart.

6 0

3 years ago

Sharyn needs 3 3/8 yards of fabric to make a dress for herself and 2 1/8 yards of the same fabric to make a matching dress for h

notka56 [123]

6 1/8 - (3 3/8 + 2 1/8) =
6 1/8 - (5 4/8) =
5 9/8 - 5 4/8 =
5/8 yds <===

5 0

3 years ago

Read 2 more answers

Can someone please help me with these? I'm giving 100 points so please.

Cerrena [4.2K]

Answer:

1. $-2\frac{9}{12}$

2. $10\frac{1}{8}$

3. 3

4. -1 > x

Step-by-step explanation:

1.

$-\frac{33}{12} \\12 * 2 = 24\\33 - 24 = 9\\-2\frac{9}{12}$

2.

$10 \frac{1}{8} / \frac{3}{4} = 13\frac{1}{2} \\13\frac{1}{2} + \frac{1}{2} = 14$

3. All share the factor of 3

4. Open circle is used for < (less than) or > (greater than). Shade to the right for > or ≥.

I hope this helps! May I please have brainliest? :)

8 0

2 years ago

Read 2 more answers

Please help me with this

damaskus [11]

this is the answer y=−1/2x+45/2

3 0

3 years ago

10 plus 10 divided and rounded to next 20

BartSMP [9]

10.5 I looked it up OKAY

7 0

2 years ago