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2 years ago

5) What decimal part of 40 is 8?

Mathematics

2 answers:

AfilCa [17]2 years ago

7 0

Answer: 0.2

Step-by-step explanation:

Nikolay [14]2 years ago

4 0

8/40 = 1/5
As a 1/5 decimal =0.2

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P (6,6) y=2/3x

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

What is the completely factored form of this polynomial? 25x^2y^2-100

Law Incorporation [45]

Answer:

25x²y² - 100

= 25(x²y² - 4)

= 25(xy + 2)(xy - 2)

3 0

2 years ago

How do I solve this

Gnoma [55]

Answer:

Step-by-step explanation:

I'm sorry forgot how to exactly solve it

7 0

3 years ago

Please help me i would really appreciate it<br> i will give brainliest

Ierofanga [76]

Answer:

b. multiply the bottom equation by 2

Step-by-step explanation:

it would eliminate y

3 0

2 years ago

The volume of a cube depends on the length of its sides. This can be written in function notation as v(s). What is the best inte

ki77a [65]

The answer is D. A cube with side lengths of 2 feet has a volume of 8 cubic feet.

7 0

3 years ago