Ask question

Ask question

All categories

Studentka2010 [4]

3 years ago

11

Atraeus is solving the quadratic equation by completing the square. 7x^2 – 14x + 6 = 0 7x^2 – 14x = –6 A(x^2 – 2x) = –6 What is

the value of A?

1 answer:

olganol [36]3 years ago

7 0

Hello,

A=7
Indeed
A(x²-2x)=-6
7x²-14x=-6

==>A=7 and -14=-2A==>A=7

You might be interested in

Pls plz plz i need the answers help me

EastWind [94]

Answer:

24 units squared

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Select all the statements that are true for the graph shown.

Yuki888 [10]

Answer:

The relationship is proportional.

The relationship is linear.

The equation of the line is y = –3x.

Step-by-step explanation:

The line in the question passes through origin and (4,-12).

The rate of change of the line is

$m=\dfrac{-12-0}{4-0}\\\Rightarrow m=\dfrac{-12}{4}\\\Rightarrow m=-3$

The rate of change of the line or slope of the line is -3

Equation of the line is given by

$(y-0)=-3(x-0)\\\Rightarrow y=-3x$

This means that the relationship is linear.

If we take any value of x then there will be only one value of y this means that the relationship is proportional.

So the following statements are true

The relationship is proportional.

The relationship is linear.

The equation of the line is y = –3x.

3 0

3 years ago

Read 2 more answers

Find derivative of the following problem ?

stepan [7]

Let u = x.lnx, , w= x and t = lnx; w' =1 ; t' = 1/x

f(x) = e^(x.lnx) ; f(u) = e^(u); f'(u) = u'.e^(u)

let' find the derivative u' of u
u = w.t
u'= w't + t'w; u' = lnx + x/x = lnx+1

u' = x+1 and f'(u) = ln(x+1).e^(xlnx)

finally the derivative of f(x) =ln(x+1).e^(x.lnx) + 2x

4 0

3 years ago

Which is an acute scalene triangle?

kvv77 [185]

Answer:

A acute triangle looks like this..^^

5 0

3 years ago

Read 2 more answers

Forty seven hundredths in standard form

Elden [556K]

Answer is .47

Fourty seven hundredths in standard form is .47,

3 0

3 years ago