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Anarel [89]
3 years ago
8

Which is the correct answer

Mathematics
2 answers:
Radda [10]3 years ago
6 0

Answer:

n = -9

Step-by-step explanation:-

777dan777 [17]3 years ago
5 0
N = -9 because if you plug in -9, you get the same answer on both sides of the equation. Try it out
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A rectangle has a height of 5 and a width of 4x^2 – 2x – 6.
bogdanovich [222]

The area of the rectangle is 20x^{2} -10x-30 units.

Step-by-step explanation:

Step 1:

The area of a rectangle is obtained by multiplying the length with the width of the rectangle.

Considering this a whole rectangle, the length of the rectangle is 5 units and the width is the sum of 4x^{2}, -2x, and -6.

So the length of the rectangle = 5 units and

the width of the rectangle = 4x^{2} -2x-6 units.

The area of a rectangle = (length)(width).

Step 2:

By substituting the known values, we get

The area of the rectangle = (5) (4x^{2} -2x-6) = 20x^{2} -10x-30.

So the area of the rectangle is 20x^{2} -10x-30 units.

3 0
3 years ago
The volume of a cylinder is 54π cubic inches and the height is 6 inches. Find the radius.
Anika [276]

Answer:

The radius of the cylinder is 3 inches.

Step-by-step explanation:

For any given cylinder, the volume can be expressed as:

volume = \pir^{2}h

where r is the radius of its circular surface, and h is its height.

Given that: volume = 54π cubic inches, and the height = 6 inches.

then,

54\pi = \pi x r^{2} x 6

54\pi  = 6\pir^{2}

r^{2} = \frac{54\pi }{6\pi }

   = 9

r = \sqrt{9}

r = 3

The radius of the cylinder is 3 inches.

8 0
3 years ago
What is the base 8 representation of the number 11100111∨2?
Nezavi [6.7K]

Answer:

347(8) = C

Step-by-step explanation:

8 0
3 years ago
1. According to the graph, how many hours a day does the average teenager spend at school.
shutvik [7]

There are 24 hours in a day. 25% is 25 / 100

% can always be replaced by divide by 100.

25/100 * 24 = 25*24/100 = 600 / 100 = 6

Therefore someone spends 6 hours a day in school.

5 0
4 years ago
Can a triangle consists of an acute angle a right angle and a obtuse angle​
Vitek1552 [10]

Answer:

No

Step-by-step explanation:

All triangles have to equal 180 degrees. The sum of those angles would be greater than 180

4 0
3 years ago
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