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3 years ago

14

Equivalent expression of 9(r + r + r+ r)

1 answer:

Naily [24]3 years ago

8 0

Answer:

36r

Step-by-step explanation:

See the steps below:)

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20 POINTS AND BRAINLIEST TO THE PERSON WHO GETS THIS RIGHT!

Basile [38]

It would need to have sin in the answer because it says in terms of y

6 0

3 years ago

Determine the gravitational force of attraction between two 3.5 kg bowling balls whose

Ipatiy [6.2K]

Answer:

$F_G=2.04\ .\ 10^{-10}\ Nw$

Option J

Step-by-step explanation:

Newton's Universal Law Of Gravitation

Newton discovered that all objects attract each other with a force of gravitational attraction which is proportional to their masses and inversely proportional to the square of the distance between them.

$\displaystyle F_G=G\frac{m_1m_2}{d^2}\ ,\ G=6.673\ .\ 10^{-11} N m^2/kg^2$

Where $m_1, m_2$ are the masses in kg and d is the distance between them in meters.

In the problem, we have

$m_1=m_2=3.5\ kg$

$d=2\ meters$

$\displaystyle F_G=6.673\ .\ 10^{-11} N m^2/kg^2\frac{(3.5kg)(3.5kg)}{(2m)^2}$

$\boxed{F_G=2.04\ .\ 10^{-10}\ Nw}$

5 0

3 years ago

What is this problem ? 6/2(1+2)= ? but yo can't look this answer up ok and another thing explain

Feliz [49]

Answer:

9.

Step-by-step explanation:

First solve 1+2. That is 3.

6/2 is 3.

So then we have 3 x 3, which is 9.

(pls mark as brainliest, thank you)

5 0

3 years ago

Rhianna and Myra, both teachers, are adding books to their class libraries. Rhianna's classroom started out with a collection of

Hunter-Best [27]

Answer:

21 books; 5 weeks

Step-by-step explanation:

3 0

2 years ago

What is the equation for

WARRIOR [948]

The equation of a line that is perpendicular to the given line is y = –4x – 16.

Solution:

The equation of a line given is y = 0.25x – 7

Slope of the given line( $m_1$ ) = 0.25

Let $m_2$ be the slope of the perpendicular line.

Passes through the point (–6, 8).

<em>If two lines are perpendicular then the product of the slopes equal to –1.</em>

$\Rightarrow m_1 \cdot m_2=-1$

$\Rightarrow 0.25\cdot m_2=-1$

$\Rightarrow m_2=\frac{-1}{0.25}$

$\Rightarrow m_2=-4$

Point-slope intercept formula:

$y-y_1=m(x-x_1)$

$x_1=-6, y_1=8$ and $m=-4$

Substitute these in the formula, we get

$y-8=-4(x-(-6))$

$y-8=-4(x+6)$

$y-8=-4x-24$

Add 8 on both sides of the equation.

$y-8+8=-4x-24+8$

$y=-4x-16$

Hence the equation of a line that is perpendicular to the given line is

y = –4x – 16

5 0

3 years ago