3 years ago

One square tile on your kitchen floor is

Mathematics

2 answers:

Ganezh [65]3 years ago

8 0

11.25×12.5 = 140.625.
Depending on your class, you may only need 140 or round to 141.

Sveta_85 [38]3 years ago

4 0

Answer:

140.63

Step-by-step explanation:

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(7x^2-2x+5) - (3x^2+4x+10) simplify and show steps

mixas84 [53]

7x^2 - 3x^2 = 4x^2
-2x+4X=4X
5+ 10 = 15
4x^2 + 4x + 15

5 0

4 years ago

If s(x) = 2x2 + 3x - 4, and t(x) = x + 4 then s(x) · t(x) =

Paladinen [302]

Answer:

$\large\boxed{s(x)\cdot t(x)=2x^3+11x^2+8x-16}$

Step-by-step explanation:

$s(x)=2x^2+3x-4,\ t(x)=x+4\\\\s(x)\cdot t(x)\\\\\text{use the distributive property:}\ a(b+c)=ab+ac\\\\s(x)\cdot t(x)=(2x^2+3x-4)(x+4)\\\\=(2x^2+3x-4)(x)+(2x^2+3x-4)(4)\\\\=(2x^2)(x)+(3x)(x)+(-4)(x)+(2x^2)(4)+(3x)(4)+(-4)(4)\\\\=2x^3+3x^2-4x+8x^2+12x-16\\\\\text{combine like terms}\\\\=2x^3+(3x^2+8x^2)+(-4x+12x)-16\\\\=2x^3+11x^2+8x-16$