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gladu [14]
3 years ago
11

Two angles of a triangle measure 78 and 24

Mathematics
1 answer:
Leviafan [203]3 years ago
8 0

Answer: 78

Step-by-step explanation: Remember every triangle ads up to a total of 180 degrees. You just have to make sure that it adds up to 180

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An experimental serum was injected into 500 guinea pigs.​ Initially, 50 of the guinea pigs had circular​ cells, 100 had elliptic
postnew [5]

Answer:

2

Step-by-step explanation:

4+6=9

3 0
3 years ago
Meldie made a cube whose side is (3x - 2) inches. Find its volume in cubic inches.
irinina [24]

Answer:

x^2(3x-2) cubic inches OR in^3

OR

3x { 3 [ 3x ( x - 2 ) + 4 ] } - 8 cubic inches OR in^3

I AM UNAWARE IF YOU ASKED THAT ONE SIDE IS (3X-2) OR ALL. I WILL ANSWER BOTH PARTS

<em>-</em>

<em>NOTE</em><em>:</em><em> </em><em>'</em><em>^</em><em>'</em><em> </em><em>MEANS</em><em> </em><em>TO</em><em> </em><em>THE</em><em> </em><em>POWER</em><em> </em><em>OF</em><em>.</em><em>.</em>

<em>-</em>

Volume = v, abc = 3 sides of cube (height, width, length)

Using the formula for volume in a cube,

v = abc

We can solve this.

If one side is (3x-2)in,

  • (3x-2)(x)(x) = v.... x are the other two sides
  • x^2(3x-2) = v

x^2(3x-2) cubic inches OR in^3

If all sides are (3x-2)in,

Use the formula,

(a - b) ^{3}  =  {a}^{3}  + 3ab(b - a) -  {b}^{3}

We can solve this.

  • (3x-2)(3x-2)(3x-2) = v
  • (3x-2)^3 = v.... 3x = a and -2 = b
  • (3x)^3 + [(3)(3x)(2)][2-3x] - (2)^3 = v
  • 27x^3 + 18x(2-3x) -8 = v
  • (27x^3 + 36x - 54x^2) - 8 = v.. Terms inside brackets - take 3x as common and leave out 8
  • 3x(9x^2 -18x +12) = v... Take 3 as common again in the brackets
  • 3x [ 3 ([3x^2 -6x] + 4) -8 = v....Take 3x common in the terms in square brackets
  • 3x [ 3 [ 3x (x-2) + 4 ]] - 8 = v
  • 3x { 3 [ 3x ( x - 2 ) + 4 ] } - 8 = v

3x { 3 [ 3x ( x - 2 ) + 4 ] } - 8 cubic inches OR in^3

___

If you have any questions regarding formulas or anything, comment and I will get back to you asap.

___

5 0
1 year ago
Factor this polynomial completely.
azamat

Answer:

(x-4) (x-4)

Step-by-step explanation:

foil [first, outside, inside, last]

x^2 -8x = 16

(x-4) (x-4) = x^2 -4x -4x +16 = x^2 -8x +16

3 0
3 years ago
Read 2 more answers
Solve for a.<br><br>5a−5−15=3a+6+4
taurus [48]

Answer:

<h3>a = 15</h3>

Step-by-step explanation:

5a - 5 - 15 = 3a + 6 + 4     <em>combine like terms</em>

5a + (-5 - 15) = 3a + (6 + 4)

5a - 20 = 3a + 10       <em>add 20 to both sides</em>

5a = 3a + 30      <em>subtract 3a from both sides</em>

2a = 30       <em>divide both sides by 2</em>

a = 15

5 0
3 years ago
A cone is a solid that has one circular base and only one face. true or false
bearhunter [10]
The answer for this is true 
4 0
3 years ago
Read 2 more answers
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