3 years ago

Which triangle could be drown as it is described? DUE TONIGHT HELP PLZZZZZZ!!!!

Mathematics

1 answer:

Sindrei [870]3 years ago

5 0

I believe it is an acute triangle
but I also am confused on this one

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If 7 is the value F it makes the equation true!

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3 years ago

What is the completely factored form of d4 -8d2 + 16

irinina [24]

According to Vieta's Formulas, if $x_1,x_2$ are solutions of a given quadratic equation:

$ax^2+bx+c=0$

Then:

$a(x-x_1)(x-x_2)$ is the completely factored form of $ax^2+bx+c$ .

If choose $x=d^2$ , then:

$\displaystyle x^2-8x+16=0\\\\x_{1,2}= \frac{8\pm \sqrt{64-64} }{2}=4$

So, according to Vieta's formula, we can get:

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

But $x=d^2$ :

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3 years ago

Brian needs to find the value of a number, a, so that when (x^2+3x) is added to the binomial (3x^2+ax), the sum simplifies to 4x

Julli [10]

Answer:

a = 9

Step-by-step explanation:

First we need to add (x^2+3x) to (3x^2+ax),

(x^2+3x)+(3x^2+ax)

Expand

= x^2+3x+3x^2+ax

Collect the like terms

= x^2+3x^2+3x+ax

= 4x^2 + 3x + ax

= 4x^2+(3+a)x

Equate the solution to 4x^2+12x

4x^2+(3+a)x = 4x^2+12x

Comparing the like terms on both sides

(3+a)x =12x

3 + a = 12

a = 12 - 3

a = 9

Hence the value of a is 9

6 0

3 years ago

Which triangle could be drown as it is described? DUE TONIGHT HELP PLZZZZZZ!!!!​

Which triangle could be drown as it is described? DUE TONIGHT HELP PLZZZZZZ!!!!