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3 years ago

7

Help me math whoever is goood

1 answer:

Natasha_Volkova [10]3 years ago

7 0

The conversion is 9*9=81
The conversion is true

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matrenka [14]

Answer:

$y = -\frac{3}{2}x+15$

Step-by-step explanation:

Given:

Given point P(6, 6)

The equation of the line.

$y = \frac{2}{3}x$

We need to find the equation of the line perpendicular to the given line that contains P

Solution:

The equation of the line.

$y = \frac{2}{3}x$

Now, we compare the given equation by standard form $y = mx +c$

So, slope of the line $m_{1} = \frac{2}{3}$ , and

y-intercept $c=0$

We know that the slope of the perpendicular line $m_{1}\times m_{2} = -1$

$m_{2}=-\frac{1}{m_{1}}$

$m_{2}=-\frac{1}{\frac{2}{3} }$

$m_{2}=-\frac{3}{2}$

So, the slope of the perpendicular line $m_{2}=-\frac{3}{2}$

From the above statement, line passes through the point P(6, 6).

Using slope intercept formula to know y-intercept.

$y=mx+c$

Substitute point $P(x_{1}, y_{1})=P(6, 6)$ and $m = m_{2}=-\frac{3}{2}$

$6=-\frac{3}{2}\times 6 +c$

$6=-3\times 3 +c$

$c=6+9$

$c=15$

So, the y-intercept of the perpendicular line $c=15$

Using point slope formula.

$y=mx+c$

Substitute $m = m_{2}=-\frac{3}{2}$ and $c=15$ in above equation.

$y = -\frac{3}{2}x+15$

Therefore: the equation of the perpendicular line $y = -\frac{3}{2}x+15$

8 0

3 years ago

Find the mean? Read question rest is done.

Ulleksa [173]

Answer:

I believe its 8

Step-by-step explanation:

9 + 10 + 13 + 2 +6 = 40 / 5 = 8

6 0

3 years ago

Right Triangle Trigonometry.

DiKsa [7]

Answer:

D

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

What is this!!!!!!!!!!!!! Help !!!!!!

bezimeni [28]

Answer:

A. y=3x+6

Step-by-step explanation:

1. x=y/3 -2

2.x+2= y/3

3. 3(x+2)=y

Final Answer: y=3x+6

8 0

3 years ago

What value of b makes the trinomial below a perfect square x^2-bx+100

Aloiza [94]

1. Perfect square trinomials, are 2nd degree polynomials, of the form $a x^{2} +bx+c$ so that $a \neq 0, b \neq 0, c \neq 0$ , which can be written as perfect squares.

2. For example $(x+1) ^{2} = x^{2} +2x+1
 
(3x-1)^{2}= (3x)^{2}-2(3x)+(-1) ^{2}= 9x^{2}-6x+1 
$

3. Thus $x^{2} +2x+1, 9x^{2}-6x+1$ are perfect square trinomials.

4. $x^{2} -bx+100= x^{2} -bx+ 10^{2}= (x+10)^{2} or (x-10)^{2}$

5. In the first case -b=20, so b=-20. In the second case, -b=-20, so b=20.

6. b∈{-20, 20}

6 0

3 years ago