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NISA [10]
4 years ago
12

Como resolvo: (-2,3) ²

Mathematics
1 answer:
Andreyy894 years ago
6 0

Utiliza esto (a+b) =a* 2+2ab+b* 2. 4+4√3+3

7+4√3

=13.92

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Is 3(x + 1)2 = (3x + 3)2 an identity? Explain and show your reasoning.
Scilla [17]

Answer:

YES

Step-by-step explanation:

The equation, 3(x + 1)2 = (3x + 3)2, would be an identity if the equation remains true regardless of the value of x we choose to plug in into the equation.

Let's find out if we would always get a true statement using different value of x.

✍️Substituting x = 1 into the equation:

3(x + 1)2 = (3x + 3)2

3(1 + 1)2 = (3(1) + 3)2

3(2)2 = (3 + 3)2

12 = 12 (TRUE)

✍️Substituting x = 2 into the equation:

3(x + 1)2 = (3x + 3)2

3(2 + 1)2 = (3(2) + 3)2

3(3)2 = (6 + 3)2

18 = 18 (TRUE)

✍️Substituting x = 3 into the equation:

3(x + 1)2 = (3x + 3)2

3(3 + 1)2 = (3(3) + 3)2

3(4)2 = (9 + 3)2

24 = 24 (TRUE)

Therefore, we can conclude that the equation, 3(x + 1)2 = (3x + 3)2, is an identity.

8 0
3 years ago
Please! Need help! Please answer 6 through 10! Brainliest! As a reward!
True [87]

Answer:

6=72 cm; 7=15 cm; 8=30 in; 9)56.5 degrees; 10)40 in

Step-by-step explanation:

6) The height of the triangle is 12 cm. The base is around 10 cm. Triangles are 1/2(b)h, so:

1/2(10)=5

5*12=60 cm

72 is closest to this.

7) Volume is l*w*h, so:

2.5*1.5=3.75

3.75*4=15 cm

8) Again, the height is 5 and the base is 12. 1/2(b)h means:

1/2(12)=6

6*5=30 in

9) All triangles have 180 degrees. So first, add the degrees you know:

33.5+90=123.5

Now, subtract that from 180:

180-123.5=56.5

10) Trapezoids can be found by multiplying the height by the smaller base, so:

6*8=40 in

Hope this helped!

4 0
2 years ago
A function f(x) is graphed. What is the slope of the function? m= What is the y-intercept of the function? b= Which equation rep
timofeeve [1]

Answer:

slope is m = 2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
In this diagram, which equation could you prove to be true in order to conclude that the lines are parallel?
Sladkaya [172]

THE ANSWER:

c−ab=de

THIS IS WHY:

4 0
3 years ago
hình thang cân abcd ab//cd) đáy lớn = 2,7cm .cạnh bên dài 1cm, góc adc=60 độ . kẻ ae//bc. tính độ dài ab
Olenka [21]

Answer: Is this english or gibberish?

Step-by-step explanation:

7 0
3 years ago
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