3 years ago

What is a 3 dimensional figure with 3 rectangular faces and 2 triangular faces

Mathematics

1 answer:

Margaret [11]3 years ago

8 0

The Answer is Triangular Prism.

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If y2 = x3 + 2, which statement is true? The equation is a function at all values of x. The equation is not a function. The equa

tatyana61 [14]

Answer:

The equation is not a function.

Step-by-step explanation:

We are given that

$y^2=x^3+2$

$y=\pm\sqrt{x^3+2}$

Function: It is mapping between the values of two sets A and B.

Each element of A has unique value in set B.

By definition of function

In given function

y has no unique value for each value of x.

Substitute x=0

$y=\pm \sqrt{0+2}=\pm \sqrt 2$

Hence, it is not a function.

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3 years ago

(x-1)(x-3)(x+5)(x+7)=297

mihalych1998 [28]

First simplify the expression into polynomial form,

$(x-1)(x-3)(x+5)(x+7)=297$

$x^4+8x^3-10x^2-104x+105=297$

$x^4+8x^3-10x^2-104x-192=0$

Now factor into,

$(x-4)(x+8)(x^2+4x+6)=0$

Which means the solutions are,

$x-4=0\implies\boxed{x_1=4}$

$x+8=0\implies\boxed{x_2=-8}$

and then two complex solutions because determinant of the third factor $D\lt0$ ,

$x^2+4x+6=0$

$x^2+4x+4=-2$

$(x+2)^2=-2\implies\boxed{x_3=i\sqrt{2}-2},\boxed{x_4=-i\sqrt{2}-2}$

Hope this helps :)

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3 years ago

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Which of the following values for x are solutions of the equation:

andrey2020 [161]

Answer: it’s b

Step-by-step explanation: i took the test

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Answer #1 and #2 for Brainliest! Plz answer if you know and not just for points

zzz [600]

Answer:

#1: A

#2: 2

I apologize if its wrong

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What is the BEST deal on rice?

Elden [556K]

Answer:

Answer is 10 kg for $35

Step-by-step explanation:

Unitary method

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