Answer: 441
Step-by-step explanation:
21 x 21 = 441
I think it’s a C since it doesn’t have a letter after since the others have the letters after Graph.
We can divide arrow in two sections:
A 1 ( rectangle ) = 4 x 5 = 20 sq in.
A 2 ( triangle ) = ( 6 x 3 ) / 2 = 9 sq in.
A = A 1 + A 2 = 20 + 9 = 29 sq in
Answer: B )29 sq in.
10+5x=50
subtract ten from both sides
5x=40
divide five from both sides
x=8
samuel will need to paint 8 additional rooms
Answer: option D. 2x^2 + (3/2)x - 5
Explanation:
1) polynomials given:
f(x) = x/2 - 2 and g(x) = 2x^2 + x - 3
2) question: find (f + g) (x)
That means that f(x) + g(x), so you have to add up the two polynomials given.
3) x/2 - 2 + 2x^2 + x - 3
4) Combine like terms:
a) terms with x^2: you only have 2x^2, so it is not combined with other term.
b) terms with x: x/2 + x
that is a sum of fractions: x/2 + x = [x + 2x] / 2 = 3x / 2 = (3/2)x
c) constant terms: - 2 + (-3) = - 2 - 3 = - 5
5) Result: 2x^2 + (3/2)x - 5
That is the option d.
