4 years ago

Multiply the polynomials (a^2+3a-7) and (a+4) simplify answer + show work

Mathematics

1 answer:

Anton [14]4 years ago

3 0

= a^3 +3a^2-7a+4a^2+12a-28
=a^3 +7a^2+5a-28

You might be interested in

Help, fast pls. I don't know how to do this and don't have notes for the class.

iogann1982 [59]

Step-by-step explanation:

according to the drawing,

for x = 0 => y = 12

the coordinates of y-intercept : (0, 12)

so, y = f(0) = 12

The correct answer is 12 only

5 0

3 years ago

F(n+1)=f(n)-3 f(1)=15

Trava [24]

Answer:

f(n+1) = 13

Step-by-step explanation:

We know that f(1) = 15
So we can substitute this for f(n)-3
With this:

f(n+1) = f(1) -3
f(n+1) = 15-2
f(n+1) = 13

5 0

3 years ago

Which types of polygons are the faces of a tetrahedron?

valentina_108 [34]

The answer is the option A, which is: A. Equilateral triangles.

The explanation for this answer is shown below:

By definition, a tetrahedron is a solid in three dimensions that has: six sides, four vertices and four triangular faces. These faces are equilateral triangles, which means that all the sides are equal and all the interior angles measure $60$ degrees.