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Papessa [141]
2 years ago
15

The expression is 12n -4 = -7 solve for n

Mathematics
2 answers:
VARVARA [1.3K]2 years ago
6 0
The answer for N is 1/4
vredina [299]2 years ago
5 0

Answer:

Hey mate hope its help you....

please mark it as a brainlist answer....

and follow me...... only if you want then......

You might be interested in
Alan is on the swim team. Each week he swims a total of 6000 meters. How many kilometers does he swim each week
NARA [144]

Answer:

6 km

Step-by-step explanation:

1000 meters equals 1 kilometer

3 0
1 year ago
Complete the statements.
spayn [35]

Answer:

1. 30

2. 150

Step-by-step explanation:

3tan^2(x)-1 =0

Lets assume tan(x) = u

3u^2(x)-1 =0

Now we solve for 'u'

add 1 on both sides

3u^2(x) =1, divide both sides by 3

u^2 = \frac{1}{3}

Take square root on both sides

u = +-\frac{1}{\sqrt{3} }

We replace tan(x) for 'u'

tan(x) = +-\frac{1}{\sqrt{3} }  

x = 30 because tan(30) =+\frac{1}{\sqrt{3} }  in first quadrant

      x = 30      (tan is positive in first quadrant)

tan(x) =-\frac{1}{\sqrt{3} }                                                    

  x = 150 because tan(150) =-\frac{1}{\sqrt{3} }  in second quadrant

     tan is negative in second quadrant




4 0
3 years ago
Find the volume of the following figure. <br><br> 6 cm3 <br> 7 cm3 <br> 8 cm3 <br> 5 cm3
Cerrena [4.2K]

Answer:

7 cm³

Step-by-step explanation:

Assume each cube has an edge 1 cm in length.

Each cube has volume 1 cm³.

There are 7 cubes.

volume = 7 cm³

5 0
1 year ago
Can some one answer this plz ill give !100 POINTS!
Lorico [155]
Hello!

First of all let's find the perimeter (circumference) of the semi circles. We can combine them to make one circle with a diameter of 4 (as we can see the side length of one semi circle is 4 cm. We now plug it into the circumference equation (\pi=3.14).

4(3.14)=12.56

Now we add up the side lengths of the rectangle.

4+6+4+6=20

Now we add up the length of our circle and rectangle.

20+12.56=32.56

Therefore our answer is 32.56 cm.
----------------------------------------------------------

Now to find the area! If we combine the two semicircles, we get a circle with a diameter of four. This means that is has a radius of two. We use the equation below to find the area of the two circles.

A=\pir²

First we will square our radius.

2(2)=4

Now we multiply by pi.

4(3.14)=12.56

Now we need to find the area of the rectangle.

6(4)=24

Now we add.

24+12.56=36.56.

 
I hope this helps!

8 0
3 years ago
Read 2 more answers
Well I need help please
marissa [1.9K]

 change to improper fractions

 77 1/2 = 145/2

2  1/4  = 9/4

divide

145/2 divide 9/4

copy dot flip

145/2 * 4/9

580/18

290/9

32  2/9

it will fit into 32 bags with 2/9 left over

We have 32 full bags * 2.25 = $72.00



8 0
3 years ago
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