3 years ago

Simplify the expression below. 6n2 - 5n2 + 7n2

Mathematics

2 answers:

zavuch27 [327]3 years ago

3 0

The answer to the question is
18n^2

Nookie1986 [14]3 years ago

3 0

The answer is 8n^2. You just simplify the expression.

You might be interested in

Mrs.Anderson bought party favors for the 24 students in her class. Each favor cost $2.27. How much did all the party favors cost

Inessa05 [86]

The answer is 54.48 because 24 x 2.27=54.48

4 0

3 years ago

the plan of a house shows that the first floor will be 13 feet longer than its wide. Which expression represents the area of the

Vilka [71]

It should be C. the first floor is going to be 13 feet longer, so x squared +13 is going to be the first floor

5 0

3 years ago

Traditionally, the earth's surface has been modeled as a sphere, but the World Geodetic System of 1984 (WGS-84) uses an ellipsoi

sdas [7]

Answer: You are smart, figure it out yourself

Step-by-step explanation:

3 0

3 years ago

Y=-2x²-8x-5 domain and range

Jobisdone [24]

Answer:

Domain: All real numbers

Range: y≤3

Step-by-step explanation:

The given function is

$y = - 2 {x}^{2} - 8x - 5$

This is a polynomial function.

The domain is set of all values of x, that makes this function defined.

Since polynomial functions are defined everywhere, the domain is all real numbers.

To find the range we put the function in vertex form:

$y = - 2( {x}^{2} + 4x) - 5$

$y = - 2( {x}^{2} + 4x + 4) - 5 + - 4 \times - 2$

$y = - 2( {x} + 2)^{2} - 5 + 8$

$y = - 2( {x} + 2)^{2} + 3$

The maximum value is 3

The function turns downward, hence the range is:

$y \leqslant 3$

6 0

3 years ago

If two point lie in the same plane, then a line containing the lies in the plane. Illustrate.

dlinn [17]

Answer:

tom

Step-by-step explanation:

4 0

3 years ago