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Tatiana [17]
4 years ago
12

K^2-2k/3 divided by k-2/2

Mathematics
1 answer:
notsponge [240]4 years ago
5 0

Answer:

7k

Step-by-step explanation:

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The portions of a house that need to be heated can be modeled by one rectangular prism with a length of 45 feet, a width of 20 f
nignag [31]

Answer:

12150 ft^3

Step-by-step explanation:

= (45)(20)(10) + (350)(9)

= 9000 + 3150

= 12150 ft^3

4 0
3 years ago
Given: m∠AKB = 25°
dexar [7]

Answer:

V = 255.98189 pi

SA = 172.64114π

Step-by-step explanation:

The first thing to do is find the radius.

the measure of angle AKO = 1/2 the measure of angle AKB

m< AKO = 12.5 degrees

Now use trig to find AO (aka the radius)

tan(12.5) = AO/25

AO = 25* tan(12.5)

<em>I'm leaving it like this to get a more accurate number</em>

Now to find the volume

the volume of a cone is pir^2h/3

plugging everything in we get:

pi(25*tan(12.5))^2 * 25/3

which is about <u>255.98189 pi</u>

Now for surface area

(this is the moment I realize symbols exist)

SA = πr(r+√h²+r²)

plugging everything in we have

π(25tan(12.5))((25tan(12.5)+√625+(25tan(12.5))^2)

<em>I know it looks like a lot but that's mainly because I left the radius as 25tan(12.5)</em>

The Surface Area is about <u>172.64114π</u>

8 0
3 years ago
What is the volume of a cube with sides 5 cm long?
MA_775_DIABLO [31]
Its C.125 is the correct answer...
3 0
3 years ago
73 POINTS ANSWER QUICKLY AND CORRECTLY, WILL GIVE BRAINLIEST
balu736 [363]

Answer:

y = -2x+4

Step-by-step explanation:

slope = (y2-y1)/(x2-x1)

   = (-4-2)/(4-1)

     = -6/3

  = -2

point slope form

y-y1 = m(x-x1)

y-2 = -2(x-1)

distribute

y-2 =-2x +2

add 2 to each side

y-2 +2 =-2x+2+2

y = -2x+4

in slope intercept form

y = -2x+4

5 0
3 years ago
Which triangles could not be similar to triangle ABC ?
kenny6666 [7]

Answer:

trapizoids

Step-by-step explanation:

4 0
3 years ago
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