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erastova [34]
3 years ago
14

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

Mathematics
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
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