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Zielflug [23.3K]
2 years ago
12

(−2 − √3)(−2 + √3) simplified​

Mathematics
2 answers:
e-lub [12.9K]2 years ago
5 0

Answer:

follow me!

Step-by-step explanation:

the answer is(0) un the radical 3

nata0808 [166]2 years ago
4 0

Answer:

1

Step-by-step explanation:

To simplify this, we can use foil:

  • First: -2 × - 2 = 4
  • Outside: -2 × √3 = -2√3
  • Inside: -√3 × -2 = +2√3
  • Last: -√3 × √3 = -3

From this, we get 4 - 2√3 + 2√3 - 3 which can be simplified to 1

Hope this helps!

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What is the volume of the right prism with height h=14 cm, if the base of the prism is a triangle ∆ABC with side AB = 9 cm and a
Lina20 [59]
<u><em>Answer:</em></u>
volume of prism = 378 cm³

<u><em>Explanation:</em></u>
<u>The volume of the right prism can be calculated as follows:</u>
volume of prism = area of base * height of prism

<u>1- getting the area of base:</u>
Our base is a triangle, this means that:
area = 0.5 * base * height
We have:
base = 9 cm
height = 6 cm
Therefore:
area of base = 0.5 * 9 * 6
area of base = 27 cm²

<u>2- getting the volume:</u>
volume of prism = area of base * height of prism
volume of prism = 27 * 14
volume of prism = 378 cm³

Hope this helps :)
7 0
3 years ago
Solve | x-3 | -4 = 10
Westkost [7]

Answer:

the answer is 17 or -11

Step-by-step explanation:

|x-3| - 4 = 10

|x-3| = 14

x-3 = 14 or -14

x = 17 or -11

6 0
3 years ago
The lengths of the sides of an equilateral triangle are 3(x + )cm, (5x +2y-1) cm and 5x +1 Cm Find the side length of the triang
pochemuha

Answer:

Correct option is A

Since it is an equilateral triangle, the lengths of the sides are equal

So, x+3 y=3 x+2 y−2=4 x+

2

1

​

y+1

x+3 y=3 x+2 y−2

y=2 x−2

2 x−y=2 ...(1)

Also, 4 x+

2

1

y+1=x+3 y

8 x+y+2=2 x+6 y

6 x+2=5 y

6 x−5 y=−2   ...(2)

Multiplying e q(1) by  5 we get,

10 x−5 y=10      ...(3)

Subtracting e q(2) from e q(3) we get,

4 x=12⇒x=3

y=2 x−2=4

The length of one side of equilateral triangle = x+3 y =3+3(4)=15 units

5 0
3 years ago
Solve for the problem 13^3x-1=91
gogolik [260]

Answer:

{13}^{3} x - 1 = 91 \\  {13}^{3}x = 91 - 1 \\  {13}^{3}x   = 90 \\  2,197x = 90 \\  \frac{2197x}{2197}  =  \frac{90}{2197}  \\ x = 0.04

7 0
4 years ago
1:750 scale model of the Sydney Opera House after a trip to Australia. The length of the model is 24.4 centimetrers. Find the ac
vesna_86 [32]

Answer:

183 meters

Step-by-step explanation:

A 1:750 scale model means that each cm on the model corresponds to 750 cm of the actual Sydney Opera House. If the model is 24.4 centimeters long, the actual Opera House has a length of:

x = 24.4*750\\x=18,300\ cm\\x=183\ m

The actual length of the Sydney Opera House is 183 m.

6 0
3 years ago
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